government of madhya pradesh water resources department

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Government of Madhya Pradesh

Water Resources Department

Madhya Pradesh Water Sector Restructuring Project

NATIONAL COMPETITIVE BIDDING

BALANCE WORK OF RESTRUCTURING & MODERNISATION

OF D2 & D3 L B C OF SAMRAT ASHOK SAGAR PROJECT

VIDISHA (Phase II)

Chief Engineer

Chambal-Betwa Basin

Water Resources Department

Bhopal (M.P.)

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GOVERNMENT OF MADHYA PRADESH

MADHYA PRADESH WATER SECTOR RESTRUCTURING PROJECT

AGREEMENT NO:-……………………………


(CIVIL WORKS)

Name Of Work : BALANCE WORK OF RESTRUCTURING &

MODERNISATION OF D2 & D3 L B C OF

SAMRAT ASHOK SAGAR PROJECT

VIDISHA (Phase II)

Period of Sale of Bidding Document

: From 09.01.2015 to 09.02.2015

Time, Date and Office of Pre-Bid

Conference

: Date 10.02.2015 Time 15.00 Hours At

Office of the Project Director, World Bank

Projects, SWaRA Bhawan Link Road no-3,

Water Resources Department, Bhopal (M. P.)

Last Date and Time For Receipt of

Bids

: Date 10.02.2015 Time 15.00Hours

Time and Date of Opening of Bids

: Date 10.02.2015 Time 15.30 Hours

Place of Opening of Bids : Office of the Project Director, World Bank

Projects, SWaRA Bhawan Link Road no-3,

Water Resources Department, Bhopal (M. P.)

Officer Inviting Bids : Procurement Expert, O/o The Project Director,

World Bank Projects, Water Resources

Department, Bhopal (M. P.)

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INVITATION FOR BID

(IFB)

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GOVERNMENT OF MADHYA PRADESH

MADHYA PRADESH WATER SECTOR RESTRUCTURING PROJECT

INVITATIONS FOR BIDS (IFB)


Date: 31/12/2014

Bid No.: 77/MPWSRP

1. The Government of India has received a loan from the International Bank for Reconstruction & Development

(IBRD) towards the cost of Madhya Pradesh Water Sector Restructuring Project and intends a part of the

funds to cover eligible payments under the contracts for construction of works as detailed below. Bidding is

open to all bidders from eligible source countries as defined in the IBRD Guidelines for Procurement. Bidders

from India should, however, be registered with the Government of Madhya Pradesh, WRD or other State

Governments/Government of India, or State/Central Government Undertakings. Bidders are advised to note

the minimum qualification criteria specified in Clause 4 of the Instructions to Bidders to qualify for the

award of the contract.

2. The Procurement Expert, O/o The Project Director, World Bank Projects, Water Resources

Department, Bhopal (M. P.) invites bids for the construction of works detailed in the table. The bidders may

submit bids for all of the following works

3. Bidding documents (and additional copies) may be purchased from the office of The Executive Engineer,

Bahaya Vitta Poshit Pariyojna, SWaRA Bhawan Link Road no-3, Water Resources Department, Bhopal

(M. P.) and Chief Engineer, Chambal Betwa Basin, Bhopal from 09.01.2015 to 09.02.2015 for a non-

refundable fee (three sets) as indicated, in the form of cash or Demand Draft on any Scheduled bank payable at

Bhopal in favor of office of The Executive Engineer, Bahaya Vitta Poshit Pariyojna, SWaRA Bhawan

Link Road no-3, Water Resources Department, Bhopal (M. P.) Interested bidders may obtain further

information at the same address. Bidding documents requested by mail will be dispatched by registered/speed

post on payment of an extra amount of Rs 500/- The Executive Engineer, will not be held responsible for the

postal delay if any, in the delivery of the documents or non-receipt of the same.

4.Bids must be accompanied by security of the amount specified for the work in the table below, drawn in favor

of Office of The Executive Engineer, Bahaya Vitta Poshit Pariyojna, SWaRA Bhawan Link Road no-

3,Water Resources Department, Bhopal (M. P.). Bid security will have to be in any one of the forms as

specified in the bidding document and shall have to be valid for 45 days beyond the validity of the bid.

5.Bids must be delivered to Office of The Executive Engineer, Bahaya Vitta Poshit Pariyojna, SWaRA

Bhawan Link Road no-3,Water Resources Department, Bhopal (M. P.) on or before 15.00 hours on

10.02.2015 and will be opened on the same day at 15.30 hours, in the presence of the bidders who wish to

attend. If the office happens to be closed on the date of receipt of the bids as specified, the bids will be received

and opened on the next working day at the same time and venue.

6. A pre bid meeting will be held on 19.01.2015 at 15.00 hrs. at office of the Project Director, World Bank

Projects, SWaRA Bhawan Link Road no-3,Water Resources Department, Bhopal (M. P.) to clarify the

issues and to answer questions on any matter that may be raised at that stage as stated in Clause 9.2 of

‘Instructions to Bidders’ of the bidding document.

7. Other details can be seen in the bidding documents.

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TABLE

Package

No.

Name of work Approximate

value

of work (Rs.

in Lakhs)

Bid

security

(Rs. in

Lakh)

Cost of

Bid

document

(Rs.)

Period of

completion

1 2 3 4 5 6

CB/15A-

BW BALANCE WORK OF

RESTRUCTURING &

MODERNISATION

OF D2 & D3 L B C OF

SAMRAT ASHOK SAGAR

PROJECT VIDISHA

(Phase II)

1327.19 26.55 30,000/-

4 months

(including

irrigation and

rainy season)

Procurement Expert,

O/o the Project Director,

World Bank Projects,

Water Resources Department,

Bhopal (M. P.)

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SECTION I: INSTRUCTIONS TO BIDDERS

(ITB)

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Section 1: Instructions to Bidders

Table of Clauses

S. No. Particulars Page No. S. No. Particulars Page No.

A. General 8 D. Submission of Bids 15

1 Scope of Bid 8 19 Sealing and Marking of Bids 16

2 Source of Funds 8 20 Deadline for Submission of Bids 16

3 Eligible Bidders 8 21 Late Bids 16

4 Qualification of the Bidder 9 22 Modification and Withdrawal of

Bids

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5 One Bid per Bidder 11 E. Bid Opening and Evaluation 16

6 Cost of Bidding 11 23 Bid Opening 17

7 Site Visit 11 24 Process to be Confidential 17

B. Bidding Documents 12 25 Clarification of Bids 17

8 Content of Bidding Documents 12 26 Examination of Bids and

Determination of Responsiveness

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9 Clarification of Bidding Documents 12 27 Correction of Errors 18

10 Amendment of Bidding Documents 13 28 Currency for Bid Evaluation 18

C. Preparation of Bids 13 29 Evaluation and Comparison of Bids 18

11 Language of Bid 13 30 Preference for Domestic Bidders 19

12 Documents Comprising the Bid 13 F. Award of Contract 19

13 Bid Prices 13 31 Award Criteria 19

14 Currencies of Bid and Payment 14 32 Employer's Right to Accept any Bid

and to Reject any or all Bids

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15 Bid Validity 14 33 Notification of Award 20

16 Bid Security 14 34 Performance Security 20

17 Alternative Proposals by Bidders 15 35 Advance Payment and Security 20

18 Format and Signing of Bid 15 36 Adjudicator 21

37 Corrupt or Fraudulent Practices 21

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A. General 1. Scope of Bid

1.1 The Government of Madhya Pradesh Water Resources Department, Procurement Expert, O/o

The Project Director, World Bank Projects, Water Resources Department, Bhopal (M. P.)

Invites bids for the construction of works (as defined in these documents and referred to as "the

works") detailed in the table given in IFB. The bidders may submit bids for all of the work

detailed in the table given in IFB.

1.2 The successful bidder will be expected to complete the works by the intended completion date

specified in the Contract data.

2. Source of Funds

2.1 The Government of India has received a loan from the International Bank for Reconstruction and

Development (hereinafter interchangeably called “the Bank”) towards the cost of Madhya

Pradesh Water Sector Restructuring Project and intends to apply a part of the funds to cover

eligible payments under the contract for the Works. Payments by the Bank will be made only at

the request of the borrower and upon approval of the Bank in accordance with the Loan

Agreement, and will be subject in all respects to the terms and conditions of the Agreement.

Except as the Bank may specifically otherwise agree, no party other than the borrower shall derive

any rights from the Loan Agreement or have any rights to the Loan proceeds.

2.2 The loan agreement prohibits a withdrawal from the loan account for the purpose of any payment

to persons or entities, or for any import of goods, if such payment or import, to the knowledge of

the Bank, is prohibited by a decision of the United Nations Security Council, taken under Chapter

VII of the Charter of the United Nations.

3. Eligible Bidders

3.1 This Invitation for Bids is open to all bidders from the eligible countries as defined under the

IBRD Guidelines for Procurement. Any materials, equipment, and services to be used in the

performance of the Contract shall have their origin in the eligible source countries.

3.2 All bidders shall provide in Section 2, Forms of Bid and Qualification Information, a statement

that the Bidder is not associated, nor has been associated in the past, directly or indirectly, with the

Consultant or any other entity that has prepared the design, specifications, and other documents

for the Project or being proposed as Project Manager for the Contract. A firm that has been

engaged by the Borrower to provide consulting services for the preparation or supervision of the

works, and any of its affiliates, shall not be eligible to bid.

3.3 Government-owned enterprises in the Employer’s country may only participate if they are legally

and financially autonomous, operate under commercial law and are not a dependent agency of the

Borrower or Sub-borrower.

3.4 Bidders shall not be under a declaration of ineligibility for corrupt and fraudulent practices issued

by the Bank in accordance with sub-clause 37.1.

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4. Qualification of the Bidder

4.1 All bidders shall provide in Section 2, Forms of Bid and Qualification Information, a preliminary

description of the proposed work method and schedule, including drawings and charts, as

necessary.

4.2 In the event that Pre-qualification of potential bidders has been undertaken, only bids from pre-

qualified bidders will be considered for award for Contract. These qualified bidders should submit

with their bids any information updating their original prequalification applications or,

alternatively, confirm in their bids that the originally submitted prequalification information

remains essentially correct as of date of bid submission. The update or confirmation should be

provided in Section 2.

4.3 If the Employer has not undertaken prequalification of potential bidders, all bidders shall include

the following information and documents with their bids in Section 2:

(a) Copies of original documents defining the constitution or legal status, place of registration,

and principal place of business; written power of attorney of the signatory of the Bid to

commit the Bidder;

(b) Total monetary value of construction work performed for each of the last five years;

(c) Experience in works of a similar nature and size for each of the last five years, and details of

works under way or contractually committed; and clients who may be contacted for further

information on those contracts;

(d) Major items of construction equipment proposed to carry out the Contract;

(e) Qualifications and experience of key site management and technical personnel proposed for

the Contract;

(f) Reports on the financial standing of the Bidder, such as profit and loss statements and

auditor's reports for the past five years;

(g) Evidence of adequacy of working capital for this contract (access to line (s) of credit and

availability of other financial resources);

(h) Authority to seek references from the Bidder's bankers;

(i) Information regarding any litigation or arbitration resulting from contracts executed by the

Bidder in the last five years or currently under execution. The information shall include the

names of the parties concerned, the disputed amount, cause of litigation, and matter in

dispute;

(j) Proposals for subcontracting components of the Works which in aggregate add to more than

20 percent of the Bid Price (for each, the qualifications and experience of the identified sub-

contractor in the relevant field should be annexed; no vertical splitting of work for sub-

contracting is acceptable); and

(k) The proposed methodology and program of construction including Environmental

Management Plan, backed with equipment planning and deployment, duly supported with

broad calculations and quality control procedures proposed to be adopted, justifying their

Capability of execution and completion of the work as per technical specifications within the

stipulated period of completion as per milestones.

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4.4 Bids from Joint ventures are not acceptable. 4.5 A. To qualify for award of the contract, each bidder in its name should have in the last

five years i.e 2009-10 to 2013-14 (a) Achieved, in at least two financial years, a minimum annual financial turnover (in all

classes of civil engineering construction works only) of Rs 7963.20 lakh

(b) Satisfactorily completed (not less than 90% of contract value), as a prime contractor (or as

sub contractor duly certified by the employer/main contractor), at least one similar work of value not less than Rs. 1062 Lakhs

(c) Executed in any one year, the following minimum quantities of work:

Earthwork 678600 cum

Cement Concrete 44925 cum

(d) Deleted

(e) Deleted

@ At 2013-14 price level Financial turn over and cost of completed work of previous years shall be given

weight age of 5% per year based on rupee value to bring them to 2013-14 price level.

4.5 B. Each bidder should further demonstrate:

(a) Availability (either owned or leased or by procurement against mobilization advances) of the following key and critical equipment for this work:

S.

No. Item of equipment Requirement

No. Capacity

1 Excavator 02 1.00 cum Capacity

2 Truck Dumper 08 4 cum Capacity

3 Concrete Mixer Hopper 12 1 cement bag Capacity

4 Vibrator 12 1.5 HP Capacity

5 Water Tanker 12 5000 liter Capacity

6 Compaction unit 2 8 to 10 Ton Capacity

Based on the studies, carried out by the Engineer the minimum suggested major equipment to attain the completion of works in accordance with the prescribed construction schedule is shown in the above list.

The bidders should, however, undertake their own studies and furnish with their bid, a detailed construction planning and methodology supported with layout and necessary drawings and calculations (detailed) as stated in clause 4.3 (k) above to allow the employer to review their proposals. The numbers, types and capacities of each plant/equipment shall be shown in the proposals along with the cycle time for each operation for the given production capacity to match the requirements.

(b) Availability for this work of a Project Manager with no less than five years' experience in construction of similar civil engineering works and other key personnel with adequate experience as required; and

(c) Liquid assets and/or availability of credit facilities, of not less than Rs. 996 Lakhs in the format given in Section-2. (Credit lines/letter of credit/certificates from Banks for meeting the funds requirement etc.)

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4.5 C. To qualify for a package of contracts made up of this and other contracts for which bids are invited in the IFB. The bidder must demonstrate having experience and resources sufficient to meet the aggregate of the qualifying criteria for the individual contracts

4.6 Sub-contractors' experience and resources shall not be taken into account in determining the bidder’s compliance with the qualifying criteria except to the extent stated in 4.5 (A) (b) above.

4.7 Bidders who meet the minimum qualification criteria will be qualified only if their available bid

capacity is more than the total bid value. The available bid capacity will be calculated as under:

Assessed Available Bid capacity = (A * N * 1.5 - B) Where A = Maximum value of civil engineering works executed in any one year during the last five

years (updated to 2013-14 price level) taking into account the completed as well as works in progress.

N = Number of years prescribed for completion of the works for which bids are invited. B = Value, at 2013-14 price level, of existing commitments and on-going works to be completed

during the next 4 Months (period of completion of the works for which bids are invited)

4.8 Even though the bidders meet the above qualifying criteria, they are subject to be disqualified if they have:

- Made misleading or false representations in the forms, statements and attachments submitted in proof of the qualification requirements; and/or

- Record of poor performance such as abandoning the works, not properly completing the contract, inordinate delays in completion, litigation history, or financial failures etc.; and/or

- Participated in the previous bidding for the same work and had quoted unreasonably high bid

prices and could not furnish rational justification to the employer. 5. One Bid per Bidder 5.1 Each bidder shall submit only one bid for one contract. A bidder who submits or participates in

more than one Bid (other than as a subcontractor or in cases of alternatives that have been permitted or requested) will cause all the proposals with the Bidder’s participation to be disqualified.

6. Cost of Bidding 6.1 The bidder shall bear all costs associated with the preparation and submission of his Bid, and the

Employer will in no case be responsible and liable for those costs. 7. Site visit 7.1 The Bidder, at the Bidder’s own responsibility and risk is encouraged to visit and examine the Site

of Works and its surroundings and obtain all information that may be necessary for preparing the Bid and entering into a contract for construction of the Works. The costs of visiting the Site shall be at the Bidder's own expense.

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B. Bidding Documents

8. Content of Bidding Documents

8.1 The set of bidding documents comprises the documents listed in the table below and addenda

issued in accordance with Clause 10. Invitation for Bids

Section 1 Instruction to Bidders

2 Forms of Bid and Qualification Information

3 Conditions of Contract

4 Contract Data

5 Specifications

6 Drawings

7 Bills of Quantities

8 Forms of Securities

8.2 Of the three sets of the bidding documents supplied, two sets should be completed and returned

with the bid.

9. Clarification of Bidding Documents

9.1 A prospective bidder requiring any clarification of the bidding documents may notify the

Employer in writing or by cable (hereinafter "cable" includes telex and facsimile) at the

Employer's address indicated in the invitation to bid. The Employer will respond to any request

for clarification, which he received earlier than 15 days prior to the deadline for submission of

bids. Copies of the Employer's response will be forwarded to all purchasers of the bidding

documents, including a description of the enquiry but without identifying its source.

9.2 Pre-bid meeting

9.2.1 The bidder or his official representative is invited to attend a pre-bid meeting, which will take

place at Office of the Project Director, World Bank Projects, SWaRA Bhawan Link Road

no-3,Water Resources Department, Bhopal (M. P.) on 19.01.2015 at 15.00 Hrs.

9.2.2 The purpose of the meeting will be to clarify issues and to answer questions on any matter that

may be raised at that stage.

9.2.3 The bidder is requested to submit any questions in writing or by cable to reach the Employer not

later than one week before the meeting.

9.2.4 Minutes of the meeting, including the text of the questions raised (without identifying the source

of enquiry) and the responses given will be transmitted without delay to all purchasers of the

bidding documents. Any modification of the bidding documents listed in Sub-Clause 8.1, which

may become necessary as a result of the pre-bid meeting shall be made by the Employer

exclusively through the issue of an Addendum pursuant to Clause 10 and not through the

minutes of the pre-bid meeting.

9.2.5 Non-attendance at the pre-bid meeting will not be a cause for disqualification of a bidder.

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10. Amendment of Bidding Documents

10.1 Before the deadline for submission of bids, the Employer may modify the bidding documents by

issuing addenda.

10.2 Any addendum thus issued shall be part of the bidding documents and shall be communicated in

writing or by cable to all the purchasers of the bidding documents. Prospective bidders shall

acknowledge receipt of each addendum by cable to the Employer.

10.3 To give prospective bidders reasonable time in which to take an addendum into account in

preparing their bids, the Employer shall extend as necessary the deadline for submission of bids,

in accordance with Sub-Clause 20.2 below.

C. Preparation of Bids 11. Language of the Bid 11.1 All documents relating to the bid shall be in the English language. 12. Documents comprising the Bid 12.1 The bid submitted by the bidder shall comprise the following: (a) The Bid (in the format indicated in Section 2). (b) Bid Security; (c) Priced Bill of Quantities; (d) Qualification Information Form and Documents; and any other materials required to be completed and submitted by bidders in accordance with

these instructions. The documents listed under Sections 2, 4 and 7 of Sub-Clause 8.1 shall be filled in without exception.

12.2 Bidders bidding for this contract together with other contracts stated in the IFB to form a

package will so indicate in the bid together with any discounts offered for the award of more than one contract.

13. Bid Prices

13.1 The contract shall be for the whole works as described in Sub-Clause 1.1, based on the priced Bill Quantities submitted by the Bidder.

13.2 The bidder shall fill in rates and prices and line item total (both in figures and words) for all

items of the works described in the Bill of Quantities along with total bid price (both in figures and words). Items for which no rate or price is entered by the bidder will not be paid for by the Employer when executed and shall be deemed covered by the other rates and prices in the Bill of Quantities. Corrections, if any, shall be made by crossing out, initialing, dating and rewriting.

13.3 All duties, taxes, and other levies payable by the contractor under the contract, or for any other

cause shall be included in the rates, prices and total Bid Price submitted by the Bidder. Note: “Bidders may like to ascertain availability of excise/custom duty exemption benefits available in India to the

contracts financed under World Bank loan/credits. They are solely responsible for obtaining such benefits, which they have considered in their bid and in case of failure to receive such benefits for reasons whatsoever, the employer will not compensate the bidder (contractor). Where the bidder has quoted taking into account such benefits, he must give all information required for issue of certificates in terms of such notifications as per form attached to the Qualification Information in the bid. To the extent the employer determines the quantity indicated therein are reasonable keeping in view the bill of quantities, construction program and methodology, the certificates will be issued and no subsequent changes will be permitted. No certificate will be issued for items where no quantity/capacity of equipment is indicated in the statement. The bids which do not conform to the above provisions will be treated as non-responsive and rejected. Any delay in procurement of the construction equipment /machinery/goods as a result of the above shall not be a cause for granting any extension of time.”

13.4 The rates and prices quoted by the bidder are fixed.

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14. Currencies of Bid and Payment

14.1 The unit rates and the prices shall be quoted by the bidder entirely in Indian Rupees.

15. Bid Validity

15.1 Bids shall remain valid for a period not less than ninety days after the deadline date for bid

submission specified in Clause 20. A bid valid for a shorter period shall be rejected by the

Employer as non-responsive.

15.2 In exceptional circumstances, prior to expiry of the original time limit, the Employer may

request that the bidders may extend the period of validity for a specified additional

period. The request and the bidders' responses shall be made in writing or by cable.

A bidder may refuse the request without forfeiting his bid security. A bidder agreeing to the

request will not be required or permitted to modify his bid except as provided in 15.3

hereinafter, but will be required to extend the validity of his bid security for a period of the

extension, and in compliance with Clause 16 in all respects.

15.3 In case of contracts in which the contract price is fixed (not subject to price adjustment) in the

event that the purchaser request and the bidder agrees to an extension of the validity period. The

contract price, if the bidder is selected for award shall be the bid price corrected as follows:-

The price shall be increased by the factor (value of factor B) for each week or part of the week

that has elapsed from the expiration of the initial bid validity to the date of issue of letter of

acceptance to the successful bidder.

15.4 Bid evolution will be based on the bid prices without taking into consideration the above

corrections.

16. Bid Security

16.1 The Bidder shall furnish, as part of his Bid, a Bid security in the amount as shown in column 4

of the table of IFB for this particular work. This bid security shall be in favor of:

Office of The Executive Engineer, Bahaya Vitta Poshit Pariyojna, SWaRA Bhawan Link

Road no-3,Water Resources Department, Bhopal (M. P.) and may be in one of the

following forms:

A bank guarantee issued by a nationalized / scheduled bank located in India. Or

Certified cheque, Bank draft or Letter of Credit in favour of Office of The Executive

Engineer, Bahaya Vitta Poshit Pariyojna, SWaRA Bhawan Link Road no-3,Water

Resources Department, Bhopal (M. P.) Payable at Bhopal;

16.2 Bank guarantees issued as surety for the bid shall be valid for 45 days beyond the validity of the

bid.

16.3 Any bid not accompanied by an acceptable Bid Security and not secured as indicated in Sub-

Clauses 16.1 and 16.2 above shall be rejected by the Employer as non-responsive.

16.4 The Bid Security of unsuccessful bidders will be returned within 28 days of the end of the bid

validity period specified in Sub-Clause 15.1.

16.5 The Bid Security of the successful bidder will be discharged when the bidder has signed the

Agreement and furnished the required Performance Security.

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16.6 The Bid Security may be forfeited

(a) if the Bidder withdraws the Bid after Bid opening during the period of Bid validity;

(b) If the Bidder does not accept the correction of the Bid Price, pursuant to Clause 27; or

(c) In the case of a successful Bidder, if the Bidder fails within the specified time limit to

(i) Sign the Agreement; or

(ii) Furnish the required Performance Security.

17. Alternative Proposals by Bidders

17.1 Bidders shall submit offers that comply with the requirements of the bidding documents,

including the basic technical design as indicated in the drawing and specifications. Alternatives

will not be considered.

18. Format and Signing of Bid

18.1 The Bidder shall prepare one original and one copy of the documents comprising the bid as

described in Clause 12 of these Instructions to Bidders, bound with the volume containing the

Form of Bid, and clearly marked “ORIGINAL” and “COPY” as appropriate. In the event of

discrepancy between them, the original shall prevail.

18.2 The original and copy of the Bid shall be typed or written in indelible ink and shall be signed by

a person or persons duly authorized to sign on behalf of the Bidder, pursuant to Sub-Clauses 4.3.

All pages of the bid where entries or amendments have been made shall be initialed by the

person or persons signing the bid.

18.3 The Bid shall contain no alterations or additions, except those to comply with instructions issued

by the Employer, or as necessary to correct errors made by the bidder, in which case such

corrections shall be initialed by the person or persons signing the bid.

18.4 The Bidder shall furnish information as described in the Form of Bid on commissions or

gratuities, if any, paid or to be paid to agents relating to this Bid, and to contract execution if the

Bidder is awarded the contract.

D. Submission of Bids

19. Sealing and Marking of Bids

19.1 The Bidder shall seal the original and copy of the Bid in separate envelopes, duly marking the

envelopes as “ORIGINAL” and “COPY”. These envelopes (called as inner envelopes) shall

then be put inside one outer envelope.

19.2 The inner and outer envelopes shall

(a) Be addressed to the Procurement Expert and submitted at the following address:

Office of The Executive Engineer, Bahaya Vitta Poshit Pariyojna,

SWaRA Bhawan Link Road no-3, Water Resources Department,

Bhopal (M. P.)

(b) Bear the following identification:

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Bid for BALANCE WORK OF RESTRUCTURING & MODERNISATION OF D2 & D3 L B C

OF SAMRAT ASHOK SAGAR PROJECT VIDISHA (Phase II) -

- Bid Reference No- 77/MPWSRP dated 31.12.2014

- DO NOT OPEN BEFORE 10.02.2015 at 15:30 Hours.

19.3 In addition to the identification required in Sub-Clause 19.2, the inner envelopes shall indicate

the name and address of the bidder to enable the bid to be returned unopened in case it is

declared late, pursuant to Clause 21.

19.4 If the outer envelope is not sealed and marked as above, the Employer will assume no

responsibility for the misplacement or premature opening of the bid.

20. Deadline for Submission of the Bids

20.1 Bids must be received by the Employer at the address specified above no later than 10.02.2015

up to 15:00 hrs. In the event of the specified date for the submission of bids declared a holiday

for the Employer, the Bids will be received up to the appointed time on the next working day.

20.2 The Employer may extend the deadline for submission of bids by issuing an amendment in

accordance with Clause 10, in which case all rights and obligations of the Employer and the

bidders previously subject to the original deadline will then be subject to the new deadline.

21. Late Bids

21.1 Any Bid received by the Employer after the deadline prescribed in Clause 20 will be returned

unopened to the bidder.

22. Modification and Withdrawal of Bids

22.1 Bidders may modify or withdraw their bids by giving notice in writing before the deadline

prescribed in Clause 20.

22.2 Each Bidder’s modification or withdrawal notice shall be prepared, sealed, marked, and

delivered in accordance with Clause 18 & 19, with the outer and inner envelopes additionally

marked “MODIFICATION” or “WITHDRAWAL”, as appropriate.

22.3 No bid may be modified after the deadline for submission of Bids.

22.4 Withdrawal or modification of a Bid between the deadline for submission of bids and the

expiration of the original period of bid validity specified in Clause 15.1 above or as extended

pursuant to Clause 15.2 may result in the forfeiture of the Bid security pursuant to Clause 16.

22.5 Bidders may offer discounts to, or modify the prices of their Bids only by submitting Bid

modifications in accordance with this clause, or included in the original Bid submission.

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E. Bid Opening and Evaluation

23. Bid Opening

23.1 The Employer will open all the Bids received (except those received late), including

modifications made pursuant to Clause 22, in the presence of the Bidders or their representatives

who choose to attend at 15:30 hours on 10.02.2015 and the place specified in Clause 20. In the

event of the specified date of Bid opening being declared a holiday for the Employer, the Bids

will be opened at the appointed time and location on the next working day.

23.2 Envelopes marked “WITHDRAWAL” shall be opened and read out first. Bids for which an

acceptable notice of withdrawal has been submitted pursuant to Clause 22 shall not be opened.

Subsequently all envelopes marked “Modification” shall be opened and the submissions therein

read out in appropriate detail.

23.3 The Bidders’ names, the Bid prices, the total amount of each Bid and of any alternative Bid (if

alternatives have been requested or permitted), any discounts, Bid modifications and

withdrawals, the presence or absence of Bid security, and such other details as the Employer

may consider appropriate, will be announced by the Employer at the opening. No bid shall be

rejected at bid opening except for the late bids pursuant to Clause 21. Bids [and modifications]

sent pursuant to Clause 22 that are not opened and read out at bid opening will not be considered

for further evaluation regardless of the circumstances. Late and withdrawn bids will be returned

un-opened to bidders.

23.4 The Employer shall prepare minutes of the Bid opening, including the information disclosed to

those present in accordance with Sub-Clause 23.3.

24. Process to Be Confidential

24.1 Information relating to the examination, clarification, evaluation, and comparison of Bids and

recommendations for the award of a contract shall not be disclosed to Bidders or any other

persons not officially concerned with such process until the award to the successful Bidder has

been announced. Any effort by a Bidder to influence the Employer’s processing of Bids or

award decisions may result in the rejection of his Bid.

25. Clarification of Bids

25.1 To assist in the examination, evaluation, and comparison of Bids, the Employer may, at his

discretion, ask any Bidder for clarification of his Bid, including breakdowns of the unit rates.

The request for clarification and the response shall be in writing or by cable, but no change in

the price or substance of the Bid shall be sought, offered, or permitted except as required to

confirm the correction of arithmetic errors discovered by the Employer in the evaluation of the

Bids in accordance with Clause 27.

25.2 Subject to sub-clause 25.1, no Bidder shall contact the Employer on any matter relating to its bid

from the time of the bid opening to the time the contract is awarded. If the Bidder wishes to

bring additional information to the notice of the Employer, it should do so in writing.

25.3 Any effort by the Bidder to influence the Employer in the Employer’s bid evaluation, bid

comparison or contract award decisions may result in the rejection of the Bidders’ bid.

18

26. Examination of Bids and Determination of Responsiveness

26.1 Prior to the detailed evaluation of Bids, the Employer will determine whether each Bid (a) meets

the eligibility criteria defined in Clause 3; (b) has been properly signed; (c) is accompanied by

the required securities and; (d) is substantially responsive to the requirements of the Bidding

documents.

26.2 A substantially responsive Bid is one which conforms to all the terms, conditions, and

specifications of the Bidding documents, without material deviation or reservation. A material

deviation or reservation is one (a) which affects in any substantial way the scope, quality, or

performance of the Works; (b) which limits in any substantial way, inconsistent with the

Bidding documents, the Employer’s rights or the Bidder’s obligations under the Contract; or (c)

whose rectification would affect unfairly the competitive position of other Bidders presenting

substantially responsive Bids.

26.3 If a Bid is not substantially responsive, it will be rejected by the Employer, and may not

subsequently be made responsive by correction or withdrawal of the non-conforming deviation

or reservation.

27. Correction of Errors

27.1 Bids determined to be substantially responsive will be checked by the Employer for any

arithmetic errors. Errors will be corrected by the Employer as follows:

(a) where there is a discrepancy between the rates in figures and in words, the rate in words

will govern; and

(b) Where there is a discrepancy between the unit and the line item total resulting from

multiplying the unit rate by the quantity, the unit rate as quoted will govern.

27.2 The amount stated in the Bid will be adjusted by the Employer in accordance with the above

procedure for the correction of errors and, with the concurrence of the Bidder, shall be

considered as binding upon the Bidder. If the Bidder does not accept the corrected amount the

Bid will be rejected, and the Bid security may be forfeited in accordance with Sub-Clause 16.6

(b).

28. (Deleted)

29. Evaluation and Comparison of Bids

29.1 The Employer will evaluate and compare only the Bids determined to be substantially

responsive in accordance with Clause 26.

29.2 In evaluating the Bids, the Employer will determine for each Bid the evaluated Bid Price by

adjusting the Bid Price as follows:

(a) Making any correction for errors pursuant to Clause 27; or

(b) Making an appropriate adjustments for any other acceptable variations, deviations; and

(c) Making appropriate adjustments to reflect discounts or other price modifications offered in

accordance with Sub Clause 22.5.

19

29.3 The Employer reserves the right to accept or reject any variation, deviation, or alternative offer.

Variations, deviations, and alternative offers and other factors which are in excess of the

requirements of the Bidding documents or otherwise result in unsolicited benefits for the

Employer shall not be taken into account in Bid evaluation.

29.4 The estimated effect of the price adjustment conditions under Clause 47 of the Conditions of

Contract, during the period of implementation of the Contract, will not be taken into account in

Bid evaluation.

29.5 If the Bid of the successful Bidder is seriously unbalanced in relation to the Engineer’s estimate

of the cost of work to be performed under the contract, the Employer may require the Bidder to

produce detailed price analyses for any or all items of the Bill of Quantities, to demonstrate the

internal consistency of those prices with the construction methods and schedule proposed. After

evaluation of the price analyses, the Employer may require that the amount of the performance

security set forth in Clause 34 be increased at the expense of the successful Bidder to a level

sufficient to protect the Employer against financial loss in the event of default of the successful

Bidder under the Contract.

30. (Deleted)

F. Award of Contract

31. Award Criteria

31.1 Subject to Clause 32, the Employer will award the Contract to the Bidder whose Bid has been

determined to be substantially responsive to the Bidding documents and who has offered the

lowest evaluated Bid Price, provided that such Bidder has been determined to be (a) eligible in

accordance with the provisions of Clause 3, and (b) qualified in accordance with the provisions

of Clause 4.

31.2 If, pursuant to Clause 12.2 this contract is being let along with other contracts, the lowest

evaluated Bid Price will be determined when evaluating this contract in conjunction with other

contracts to be awarded concurrently, taking into account any discounts offered by the bidders

for the award of more than one contract.

32. Employer’s Right to accept any Bid and to reject any or all Bids

32.1 Notwithstanding Clause 31, the Employer reserves the right to accept or reject any Bid, and to

cancel the Bidding process and reject all Bids, at any time prior to the award of Contract,

without thereby incurring any liability to the affected Bidder or Bidders or any obligation to

inform the affected Bidder or Bidders of the grounds for the Employer’s action.

20

33. Notification of Award and Signing of Agreement

33.1 The Bidder whose Bid has been accepted will be notified of the award by the Employer prior to

expiration of the Bid validity period by cable, telex or facsimile confirmed by registered letter.

This letter (hereinafter and in the Conditions of Contract called the “Letter of Acceptance”) will

state the sum that the Employer will pay the Contractor in consideration of the execution,

completion, and maintenance of the Works by the Contractor as prescribed by the Contract

(hereinafter and in the Contract called the “Contract Price”).

33.2 The notification of award will constitute the formation of the Contract, subject only to the

furnishing of a performance security in accordance with the provisions of Clause 34.

33.3 The Agreement will incorporate all agreements between the Employer and the successful Bidder.

It will be signed by the Employer and kept ready for signature of the successful bidder in the

office of employer within 28 days following the notification of award along with the Letter of

Acceptance. Within 21 days of receipt, the successful Bidder will sign the Agreement and deliver

it to the Employer.

33.4 Upon the furnishing by the successful Bidder of the Performance Security, the Employer will

promptly notify the other Bidders that their Bids have been unsuccessful.

34. Performance Security

34.1 Within 21 days of receipt of the Letter of Acceptance, the successful Bidder shall deliver to the

Employer a Performance Security in any of the forms given below for an amount equivalent to

5% of the Contract price plus additional security for unbalanced Bids in accordance with Clause

29.5 of ITB and Clause 52 of Conditions of Contract:

- A Bank Guarantee in the form given in Section 8; or

- Certified Cheque/Bank draft, in favor of The Executive Engineer, Samrat Ashok

Sagar Division no 2, Vidisha payable at Vidisha.

34.2 If the performance security is provided by the successful Bidder in the form of a Bank

Guarantee, it shall be issued either (a) at the Bidder’s option, by a Nationalized/Scheduled

Indian bank or (b) by a foreign bank located in India and acceptable to the Employer or (c) by a

foreign bank through a correspondent Bank in India [scheduled or nationalized].

34.3 Failure of the successful bidder to comply with the requirements of sub-clause 34.1 shall

constitute a breach of contract, cause for annulment of the award, forfeiture of the bid security

and any such other remedy the Employer may take under the contract, and the Employer may

resort to awarding the contract to the next ranked bidder.

35 Advance Payment and Security

35.1 The Employer will provide an Advance Payment on the Contract Price as stipulated in the

Conditions of Contract, subject to maximum amount, as stated in the Contract Data.

21

36. Adjudicator

36.1 The Employer proposes that Shri A.K. Bangia, Superintending Engineer (Retd) be appointed as

Adjudicator under the Contract, at a daily fee of Rs. 2000/- plus reimbursable expenses. If the

Bidder disagrees with this proposal, the Bidder should so state in the Bid. If in the Letter of

Acceptance, the Employer has not agreed on the appointment of the Adjudicator, the

Adjudicator shall be appointed by Chairman, Institution of Engineers, M.P. Chapter, Bhopal

(M.P.) at the request of either party.

37. Fraud and Corruption

37.1 It is the Bank’s policy to require that Borrowers (including beneficiaries of Bank loans), bidders, suppliers,

contractors and their agents (whether declared or not), sub-contractors, sub-consultants, service providers

or suppliers, and any personnel thereof, observe the highest standard of ethics during the procurement and

execution of Bank-financed contracts . In pursuance of this policy, the Bank:(a) defines, for the purposes

of this provision, the terms set forth below as follows:

(i) “corrupt practice” is the offering, giving, receiving or soliciting, directly or indirectly, of anything

of value to influence improperly the actions of another party1;

(ii) “fraudulent practice” is any act or omission, including a misrepresentation, that knowingly or recklessly

misleads, or attempts to mislead, a party to obtain a financial or other benefit or to avoid an

obligation2;

(iii) “collusive practice” is an arrangement between two or more parties designed to achieve an

improper purpose, including to influence improperly the actions of another party3;

(iv) “coercive practice” is impairing or harming, or threatening to impair or harm, directly or

indirectly, any party or the property of the party to influence improperly the actions of a party4;

(v) “obstructive practice” is

(aa) deliberately destroying, falsifying, altering or concealing of evidence material to the

investigation or making false statements to investigators in order to materially impede a Bank

investigation into allegations of a corrupt, fraudulent, coercive or collusive practice; and/or

threatening, harassing or intimidating any party to prevent it from disclosing its knowledge of

matters relevant to the investigation or from pursuing the investigation, or

(bb) acts intended to materially impede the exercise of the Bank’s inspection and audit rights

provided for under paragraph 1.16(e) below.

(b) will reject a proposal for award if it determines that the bidder recommended for award, or any of its

personnel, or its agents, or its sub-consultants, sub-contractors, service providers, suppliers and/or their

employees, has, directly or indirectly, engaged in corrupt, fraudulent, collusive, coercive or obstructive

practices in competing for the contract in question;

(c) will declare misprocurement and cancel the portion of the loan allocated to a contract if it determines at

any time that representatives of the Borrower or of a recipient of any part of the proceeds of the loan

1 For the purpose of this sub-paragraph, “another party” refers to a public official acting in relation to the procurement process or

contract execution. In this context, “public official” includes World Bank staff and employees of other organizations taking or reviewing

procurement decisions.

2 For the purpose of this sub-paragraph, “party” refers to a public official; the terms “benefit” and “obligation” relate to the procurement

process or contract execution; and the “act or omission” is intended to influence the procurement process or contract execution.

3 For the purpose of this sub-paragraph, “parties” refers to participants in the procurement process (including public officials) attempting

either themselves, or through another person or entity not participating in the procurement or selection process, to simulate competition or

to establish bid prices at artificial, non competitive levels, or are privy to each other’s bid prices or other conditions.

4 For the purpose of this sub-paragraph, “party” refers to a participant in the procurement process or contract execution.

22

engaged in corrupt, fraudulent, collusive, coercive or obstructive practices during the procurement or the

implementation of the contract in question, without the Borrower having taken timely and appropriate

action satisfactory to the Bank to address such practices when they occur, including by failing to inform the

Bank in a timely manner at the time they knew of the practices;

(d) will sanction a firm or individual, at any time, in accordance with prevailing Bank’s sanctions procedures ,

including by publicly declaring such firm or individual ineligible, either indefinitely or for a stated period

of time: (i) to be awarded a Bank-financed contract; and (ii) to be a nominated sub-contractor, consultant,

supplier or services provider of an otherwise eligible firm being awarded a Bank-financed contract;

37.2 In further pursuance of this policy, bidders, suppliers and contractors, and their sub-contractors, agents, personnel,

consultants, service providers or suppliers, shall permit the Bank to inspect all accounts, records and other

documents relating to the submission of bid and contract performance, and to have them audited by auditors

appointed by the Bank.

37.3 Furthermore, bidders shall be aware of the provision stated in GCC Sub-Clauses 23.2 and 59.2 (h).

23

SECTION II : FORMS OF BID, QUALIFICATION

INFORMATION

AND LETTER OF ACCEPTANCE

24

Section 2 : Forms of Bid, Qualification Information and Letter of Acceptance

Table of Forms

S. No. Particulars

Page No.

1 Contractor’s Bid

25

2 Qualification Information

26

3 Letter of Acceptance

32

4 Notice To Proceed With The Work

33

5 Agreement Form

34

25

Contractor's Bid

Description of the Works: BALANCE WORK OF RESTRUCTURING & MODERNISATION

OF D2 & D3 L B C OF SAMRAT ASHOK SAGAR PROJECT VIDISHA (Phase II)

BID

To : The Chief Engineer, Chambal Betwa Basin,


Near Nutan College,

Bhopal (M. P.)

GENTLEMEN, Having examined the bidding documents including addendum, we offer to execute the Works described above in accordance with the Conditions of Contract, Specifications, Drawings and Bill of Quantities accompanying this Bid for the Contract Price of ______________ [in figures] (___________________________________________) [in letters]. The advance Payment required is: Rupees ________________. We accept the appointment of ________________________ as the Adjudicator.

(OR)

We do not accept the appointment of ___________________ as the Adjudicator and propose instead that _______________________ be appointed as Adjudicator whose daily fees and biographical data are attached.

This Bid and your written acceptance of it shall constitute a binding contract between us. We understand that you are not bound to accept the lowest or any Bid you receive.

We hereby certify that we have taken steps to ensure that no person acting for us or on our behalf will

engage in bribery.

We also undertake that, in competing for (and, if the award is made to us, in executing) the above

contract, we will strictly observe the laws against fraud and corruption in force in India namely

“Prevention of Corruption Act 1988”.

Commissions or gratuities, if any, paid or to be paid by us to agents relating to this Bid, and to contract execution if we are awarded the contract, are listed below:

Name and address of agent Amount Purpose of Commission or gratuity ______________________ ________ ____________________________ ______________________ ________ ____________________________ ______________________ ________ ____________________________ (if none, state “none”) We hereby confirm that this Bid complies with the Eligibility, Bid Validity and Bid Security required by the Bidding documents. Yours faithfully, Authorized Signature: Name & Title of Signatory: ______________________________________________________ Name of Bidder : __________________________________________________________

Address :____________________________________________________________

26

Qualification Information

The information to be filled in by the Bidder in the following pages will be used for purposes of post

qualification as provided for in Clause 4 of the Instructions to Bidders. This information will not be

incorporated in the Contract.

1. For Individual Bidders

1.1 Constitution or legal status of Bidder

[Attach copy]

Place of registration: ______________________________

Principal place of business: ______________________________

Power of attorney of signatory of Bid

[Attach]

1.2 Total value of Civil Engineering construction

Work executed and payments received in the last five years

(in Rs. Lakhs) 2009- 2010

2010- 2011

2011- 2012

2012- 2013

2013- 2014

1.3.1 Work performed as prime contractor (in the same name) on works of a similar nature over the

last five years. i.e. 2009-10 to 2013-14

Project

Name

Name

of the

Employer*

Description

of work

Contract

No.

Value of

contract

(Rs. Lakhs)

Date of

issue of

work order

Stipulated

period of

completion

Actual date

of

completion

*

Remarks

explaining

reasons for

delay and

work

completed

1.3.2 Quantities of work executed as prime contractor (in the same name and style) in the last five

years. i.e. 2009-10 to 2013-14

Year Name of

the Work

Name of the

Employer*

Quantity of work performed (cum) @ Remarks *

(indicate

contract Ref) Earth work

Cement concrete

(including

RCC&PCC)

2009-2010

2010-2011

2011-2012

2012-2013

2013-2014

*Attach certificate(s) from the Engineer(s)-in-Charge

Attach certificate from Chartered Accountant. @ The item of work for which data is required should tally with that

specified in ITB clause 4.5 A (c)

27

1.4 Information on Bid Capacity (works for which bids have been submitted and works which are yet to be completed) as on the date of this bid.

(A) Existing commitments and on-going works:

Description of Work

Place & State

Contract No. & Date

Name and Address of Employer

Value of Contract

(Rs. millions)

Stipulated period of

completion

Value of works

remaining to be completed (Rs. millions)

Anticipated date of

completion

(1) (2) (3) (4) (5) (6) (7) (8)

(B) Works for which bids already submitted: Description of

Work Place & State Name and

Address of Employer

Estimated value of works

(Rs. millions)

Stipulated period of

completion

Date when decision is if any expected

Remarks

(1) (2) (3) (4) (5) (6) (7)

1.5 The following items of Contractor's Equipment are essential for carrying out the Works. The Bidder should list all the information requested below. Refer also to Sub Clause 4.3 (d) of the Instructions to Bidders.

Item of equipment Requirement Availability proposals Remarks

(From whom to be purchased)

No. Capacity Owned/leased/ to be procured

Nos / capacity

Age/ condition

Excavator 02 1.00 cum Capacity

Truck Dumper 08 4 cum Capacity

Concrete Mixer Hopper

12 1 cement bag Capacity

Vibrator 12 1.5 HP Capacity

Water Tanker 12 5000 liter Capacity

Compaction unit 02 8 to 10 Tone Capacity

28

1.6 Qualifications and experience of key personnel proposed for administration and execution of the Contract. Attach biographical data. Refer also to Sub Clause 4.3 (e) and 4.5 (B) (b) of instructions to Bidders and Sub Clause 9.1 of the Conditions of Contract.

Position Name Qualifications Years of experience

(general)

Years of experience

in the proposed

position

Project Manager..

Etc..

1.7 Proposed subcontracts and firms involved. [Refer ITB Clause 4.3 (j)]

Sections of the works Value of Sub-contract Sub-contractor(name and

address)

Experience in similar work

1.8 Financial reports for the last five years: balance sheets, profit and loss statements, auditors' reports

(in case of companies/corporation), etc. List them below and attach copies.

1.9 Evidence of access to financial resources to meet the qualification requirements: cash in hand,

lines of credit, etc. List them below and attach copies of support documents [sample format

attached].

1.10. Name, address, and telephone, telex, and fax numbers of the Bidders' bankers who may provide

references if contacted by the Employer.

1.11 Information on litigation history in which the Bidder is involved.

Other party(ies) Employer Cause of dispute Amount involved Remarks showing

Present status

29

1.12 Statement of compliance under the requirements of Sub Clause 3.2 of the instructions to Bidders.

_________________________________________________________________________

_________________________________________________________________________

_________________________________________________________________________

1.13 Proposed work method and schedule. The Bidder should attach descriptions, drawings and charts

as necessary to comply with the requirements of the Bidding documents. [Refer ITB Clause 4.1

and 4.3 (k)].

2. Joint Ventures - Deleted

3. Additional Requirements

3.1 Bidders should provide any additional information required to fulfill the requirements of Clause 4

of the Instructions to the Bidders, if applicable.

____________________________________________________________________________________________

30

SAMPLE FORMAT FOR EVIDENCE OF ACCESS TO OR AVAILABILITY OF CREDIT

FACILITIES –* CLAUSE 4.5 [B] [c] OF ITB

BANK CERTIFICATE

This is to certify that M/s.…………………………………………………………… is a reputed

company with a good financial standing. If the contract for the work, namely BALANCE WORK OF

RESTRUCTURING & MODERNISATION OF D2 & D3 L B C OF SAMRAT ASHOK SAGAR

PROJECT VIDISHA (Phase II)

[Funded by the World Bank] is awarded to the above firm, we shall be able to provide overdraft/credit

facilities to the extent of Rs. ………………….…… to meet their working capital requirements for

executing the above contract.

Name of Bank

Senior Bank Manager

Address of the Bank

31

Form ……….



(Declaration regarding customs/excise duty exemption for materials/

Construction equipment bought for the work)

(Bidder’s Name and Address)

M/S …………………………………….

…………………………………….

To: The Chief Engineer,

Chambal Betwa Basin,


Near Nutan College,

Bhopal (M. P.)

Dear Sir:

Re: BALANCE WORK OF RESTRUCTURING & MODERNISATION OF D2 & D3 L B C

OF SAMRAT ASHOK SAGAR PROJECT VIDISHA (Phase II)

Certificate for Import/Procurement of Goods/Construction Equipment

1. We confirm that we are solely responsible for obtaining customs/excise duty waivers which we

have considered in our bid and in case of failure to receive such waivers for reasons whatsoever,

the Employer will not compensate us.

2. We are furnishing below the information required by the Employer for issue of the necessary

certificates in terms of the Government of India Central Excise Notification No. 108/95 and

Customs Notification No. 85/99.

3. The goods/construction equipment for which certificates are required are as under:

Items Make / Brand

Name

Capacity

[where

applicable]

Quantity Value State whether it

will be procured

locally or imported

[if so from which

country]

Remarks regarding

justification for the

quantity and their

usage in works

Goods

[a] Cement

[b] Steel

[b] Others

4. We agree that no modification to the above list is permitted after bids are opened.

5. We agree that the certificate will be issued only to the extent considered reasonable by the

Employer for the work, based on the Bill of Quantities and the construction programme and

methodology as furnished by us along with the bid.

6. We confirm that the above goods will be exclusively used for the construction of the above work

and construction equipment will not be sold or otherwise disposed of in any manner for a period

32

of five years from the date of acquisition. This certificate will be issued within 60 days of signing

of contract & no sub sequent changes will be permitted.

Date: ___________________

Place: __________________

(Signature) ____________________

(Printed Name) _________________

(Designation) __________________

(Common Seal) ________________

This certificate will be issued within 60 days of signing of contract and no subsequent

changes will be permitted.

33

Letter of Acceptance

(letterhead paper of the Employer)

________________________[date]

To: ________________________________

________________________________[name and address of the Contractor]

Dear Sirs,

This is to notify you that your Bid dated ____________ for execution of the BALANCE WORK OF



[name of the contract and identification number, as given in the Instructions to Bidders] for the

Contract Price of Rupees ______________________________________(_____________) [amount in

words and figures], as corrected and modified in accordance with the Instructions to Bidders1 is hereby

accepted.

We accept/do not accept that __________________________ be appointed as the Adjudicator2.

We note that as per bid, you do not intend to subcontract any component of work.

[OR]

We note that as per bid, you propose to employ M/s. .......................................... as sub-contractor for

executing ….........................................

[Delete whichever is not applicable]

You are hereby requested to furnish Performance Security, plus additional security for unbalanced bids

in terms of ITB clause 29.5, in the form detailed in Para 34.1 of ITB for an amount of Rs.—————

within 21 days of the receipt of this letter of acceptance valid up to 28 days from the date of expiry of

Defects Liability Period i.e. up to ........... and sign the contract, failing which action as stated in Para

34.3 of ITB will be taken.

We have reviewed the construction methodology submitted by you along with the bid in response to

ITB Clause 4.3[k] and our comments are given in the attachment. You are requested to submit a

revised Program including environmental management plan as per Clause 27 of General Conditions of

Contract within 14 days of receipt of this letter.

Yours faithfully,

Authorized Signature

Name and Title of Signatory

Name of Agency

1 Delete "corrected and" or "and modified" if only one of these actions applies. Delete "as corrected and modified in

accordance with the Instructions to Bidders" if corrections or modifications have not been effected.

2 To be used only if the Contractor disagrees in his Bid with the Adjudicator proposed by the Employer in the

"Instructions to Bidders."

34

Issue of Notice to proceed with the work (letter head of the Employer)

————— (date)

To

—————————————— (name and address of the Contractor)

——————————————

——————————————

Dear Sirs:

Pursuant to your furnishing the requisite security as stipulated in ITB clause 34.1 and signing of

the contract agreement for the BALANCE WORK OF RESTRUCTURING & MODERNISATION


@ a Bid Price of Rs.————————————, you are hereby instructed to proceed with the

execution of the said works in accordance with the contract documents.

Yours faithfully,

(Signature, name and title of

signatory authorized to sign on

behalf of Employer)

35

Agreement Form

Agreement

This agreement, made the ___________________ day of ______________2015, between The Chief

Engineer, Chambal-Betwa Basin, Water Resources Department, Bhopal (M.P.) (hereinafter called

“the Employer)” of the one part and _____________________________________________________

______________________________________________________[name and address of contractor]

(hereinafter called “the Contractor” ) of the other part.

Whereas the Employer is desirous that the Contractor execute BALANCE WORK OF



(Hereinafter called “the Works”) and the Employer has accepted the Bid by the Contractor for the

execution and completion of such Works and the remedying of any defects therein, at a contract price of

Rs.................................................................................

NOW THIS AGREEMENT WITNESSETH as follows:

1. In this Agreement, words and expression shall have the same meanings as are respectively assigned

to them in the Conditions of Contract hereinafter referred to, and they shall be deemed to form and

be read and construed as part of this Agreement.

2. In consideration of the payments to be made by the Employer to the Contractor as hereinafter

mentioned, the Contractor hereby covenants with the Employer to execute and complete the Works

and remedy any defects therein in conformity in all aspects with the provisions of the Contract.

3. The Employer hereby covenants to pay the Contractor in consideration of the execution and

completion of the Works and the remedying the defects wherein the Contract Price or such other

sum as may become payable under the provisions of the Contract at the times and in the manner

prescribed by the Contract.

4. The following documents shall be deemed to form and be read and construed as part of this

Agreement, viz.:

(i) Letter of Acceptance;

(ii) Notice to proceed with the works;

(iii) Contractor’s Bid;

(iv) Contract Data;

(v) Conditions of contract (including Special Conditions of Contract);

(vi) Specifications;

(vii) Drawings;

(viii) Bill of Quantities and

36

(ix) Any other document listed in the Contract Data as forming part of the contract.

In witness whereof the parties thereto have caused this Agreement to be executed the day

and year first before written.

The Common Seal of ____________________________________________________________

was hereunto affixed in the presence of:

Signed, Sealed and Delivered by the said

___________________________________________________________________________________

___________________________________________________________________

in the presence of:

Binding Signature of Employer ____________________________________________________

Binding Signature of Contractor ___________________________________________________

37

SECTION III: CONDITIONS OF CONTRACT

38

Section 3 : Conditions of Contract

Table of Contents

A. General Page No. C. Quality Control Page No.

1 Definitions 38 33. Identifying Defects 45

2 Interpretation 39 34. Tests 46

3 Language and Law 40 35. Correction of Defects 46

4 Engineer's Decisions 40 36. Uncorrected Defects 46

5 Delegation 40 D. Cost Control 46

6 Communications 40 37 Bill of Quantities 46

7 Subcontracting 40 38 Changes in the Quantities 46

8 Other Contractors 41 39 Variations 47

9 Personnel 41 40 Payments for Variations 47

10 Employer’s & Contractor's Risks 41 41 Cash Flow Forecasts 47

11 Employer's Risks 41 42 Payment Certificates 47

12 Contractor’s Risks 41 43 Payments 48

13 Insurance 41 44 Compensation Events 48

14 Site Investigation Reports 42 45 Tax 49

15 Queries about the Contract Data 42 46 Currencies 49

16 Contractor to Construct the Works 42 47 Price Adjustments 49

17 The Works to Be Completed by the

Intended Completion Date

42 48 Retention 50

18 Approval by the Engineer 42 49 Liquidated Damages 50

19 Safety 43 50 Deleted 50

20 Discoveries 43 51 Advance Payment 50

21 Possession of the Site 43 52 Securities 51

22 Access to the Site 43 53 Day works 51

23 Instructions 43 54 Cost of Repairs 51

24 Disputes 43 E. Finishing the Contract 51

25 Procedure for Disputes 44 55. Completion 51

26 Replacement of Adjudicator 44 56 Taking Over 51

B. Time Control 44 57 Final Account 51

27 Program 44 58 Operating and Maintenance Manuals 52

28 Extension of the Intended

Completion Date

45 59 Termination 52

29 Deleted 45 60 Payment upon Termination 53

30 Delays Ordered by the Engineer 45 61 Property 53

31 Management Meetings 45 62 Release from Performance 53

32 Early Warning 45 63 Suspension of World Bank Loan or

Credit

53

64 Fraud and corruption 53

F. Special Conditions of Contract 55

39

Conditions of Contract

A. General

1. Definitions

1.1 Terms which are defined in the Contract Data are not also defined in the Conditions of

Contract but keep their defined meanings. Capital initials are used to identify defined terms.

The Adjudicator is the person appointed jointly by the Employer and the Contractor to

resolve disputes in the first instance, as provided for in Clauses 24 and 25. The name of the

Adjudicator is defined in the Contract Data.

Bill of Quantities means the priced and completed Bill of Quantities forming part of the

Bid.

Compensation Events are those defined in Clause 44 hereunder.

The Completion Date is the date of completion of the Works as certified by the Engineer in

accordance with Sub Clause 55.1.

The Contract is the contract between the Employer and the Contractor to execute, complete

and maintain the Works. It consists of the documents listed in Clause 2.3 below.

The Contract Data defines the documents and other information which comprise the

Contract.

The Contractor is a person or corporate body whose Bid to carry out the Works has been

accepted by the Employer.

The Contractor's Bid is the completed Bidding document submitted by the Contractor to

the Employer.

The Contract Price is the price stated in the Letter of Acceptance and thereafter as adjusted

in accordance with the provisions of the Contract.

Days are calendar days; months are calendar months.

A Defect is any part of the Works not completed in accordance with the Contract.

The Defects Liability Period is the period named in the Contract Data and calculated from

the Completion Date.

The employer is the party who will employ the contractor to carry out the works.

The Engineer is the person named in the Contract Data (or any other competent person

appointed and notified to the contractor to act in replacement of the Engineer) who is

responsible for supervising the execution of the works and administering the Contract.

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Equipment is the Contractor's machinery and vehicles brought temporarily to the Site to

construct the Works.

The Initial Contract Price is the Contract Price listed in the Employer's Letter of

Acceptance.

The Intended Completion Date is the date on which it is intended that the Contractor shall

complete the Works. The Intended Completion Date is specified in the Contract Data. The

Intended Completion Date may be revised only by the Engineer by issuing an extension of

time.

Materials are all supplies, including consumables, used by the contractor for incorporation

in the Works.

Plant is any integral part of the Works which is to have a mechanical, electrical, electronic

or chemical or biological function.

The Site is the area defined as such in the Contract Data.

Site Investigation Reports are those which were included in the Bidding documents and

are factual interpretative reports about the surface and sub-surface conditions at the site.

Specification means the Specification of the Works included in the Contract and any

modification or addition made or approved by the Engineer.

The Start Date is given in the Contract Data. It is the date when the Contractor shall

commence execution of the works. It does not necessarily coincide with any of the Site

Possession Dates.

A Subcontractor is a person or corporate body who has a Contract with the Contractor to

carry out a part of the work in the Contract which includes work on the Site.

Temporary Works are works designed, constructed, installed, and removed by the

Contractor which are needed for construction or installation of the Works.

A Variation is an instruction given by the Engineer which varies the Works.

The Works are what the Contract requires the Contractor to construct, install, and turn over

to the Employer, as defined in the Contract Data.

2. Interpretation

2.1 In interpreting these Conditions of Contract, singular also means plural, male also means

female or neuter, and the other way around. Headings have no significance. Words have

their normal meaning under the language of the Contract unless specifically defined. The

Engineer will provide instructions clarifying queries about the Conditions of Contract.

41

2.2 If sectional completion is specified in the Contract Data, references in the Conditions of

Contract to the Works, the Completion Date, and the Intended Completion Date apply to

any Section of the Works (other than references to the Completion Date and Intended

Completion date for the whole of the Works).

2.3 The documents forming the Contract shall be interpreted in the following order of priority:

(1) Agreement

(2) Letter of Acceptance, notice to proceed with the works

(3) Contractor’s Bid

(4) Contract Data

(5) Conditions of Contract including Special Conditions of Contract

(6) Specifications

(7) Drawings

(8) Bill of Quantities and

(9) any other document listed in the Contract Data as forming part of the Contract.

3. Language and Law

3.1 The language of the Contract and the law governing the Contract are stated in the Contract

Data.

4. Engineer's Decisions

4.1 Except where otherwise specifically stated, the Engineer will decide contractual matters

between the Employer and the Contractor in the role representing the Employer.

5. Delegation

5.1 The Engineer may delegate any of his duties and responsibilities to other people except to

the Adjudicator after notifying the Contractor and may cancel any delegation after notifying

the Contractor.

6. Communications

6.1 Communications between parties which are referred to in the conditions are effective only when in writing. A notice shall be effective only when it is delivered (in terms of Indian Contract Act).

7. Subcontracting

7.1 The Contractor may subcontract with the approval of the Engineer but may not assign the Contract without the approval of the Employer in writing. Subcontracting does not alter the Contractor's obligations.

42

8. Other Contractors

8.1 The Contractor shall cooperate and share the Site with other contractors, public authorities, utilities, and the Employer between the dates given in the Schedule of Other Contractors. The Contractor shall as referred to in the Contract Data, also provide facilities and services for them as described in the Schedule. The employer may modify the schedule of other contractors and shall notify the contractor of any such modification.

9. Personnel

9.1 The Contractor shall employ the key personnel named in the Schedule of Key Personnel as referred to in the Contract Data to carry out the functions stated in the Schedule or other personnel approved by the Engineer. The Engineer will approve any proposed replacement of key personnel only if their qualifications, abilities, and relevant experience are substantially equal to or better than those of the personnel listed in the Schedule.

9.2 If the Engineer asks the Contractor to remove a person who is a member of the Contractor’s staff or his work force stating the reasons the Contractor shall ensure that the person leaves the Site within seven days and has no further connection with the work in the Contract.

10. Employer’s and Contractor's Risks

10.1 The Employer carries the risks which this Contract states are Employer’s risks, and the Contractor carries the risks which this Contract states are Contractor’s risks.

11. Employer's Risks

11.1 The Employer is responsible for the excepted risks which are (a) in so far as they directly affect the execution of the Works in the Employer’s country, the risks of war, hostilities, invasion, act of foreign enemies, rebellion, revolution, insurrection or military or usurped power, civil war, riot commotion or disorder (unless restricted to the Contractor’s employees), and contamination from any nuclear fuel or nuclear waste or radioactive toxic explosive, or (b) a cause due solely to the design of the Works, other than the Contractor’s design.

12. Contractor’s Risks

12.1 All risks of loss of or damage to physical property and of personal injury and death which arise during and in consequence of the performance of the Contract other than the excepted risks are the responsibility of the Contractor.

13. Insurance

13.1 The Contractor shall provide, in the joint names of the Employer and the Contractor, insurance cover from the Start Date to the end of the Defects Liability Period, in the amounts and deductibles stated in the Contract Data for the following events which are due to the Contractor’s risks:

(a) loss of or damage to the Works, Plant and Materials;

(b) loss of or damage to Equipment;

43

(c) loss of or damage of property (except the Works, Plant, Materials and Equipment) in connection with the Contract; and

(d) personal injury or death.

13.2 Policies and certificates for insurance shall be delivered by the Contractor to the Engineer for the Engineer’s approval before the Start Date. All such insurance shall provide for compensation to be payable in the types and proportions of currencies required to rectify the loss or damage incurred.

13.3 If the Contractor does not provide any of the policies and certificates required, the Employer may affect the insurance which the Contractor should have provided and recover the premiums the Employer has paid from payments otherwise due to the Contractor or, if no payment is due, the payment of the premiums shall be a debt due.

13.4 Alterations to the terms of insurance shall not be made without the approval of the Engineer.

13.5 Both parties shall comply with any conditions of the insurance policies.

14. Site Investigation Reports

14.1 The Contractor, in preparing the Bid, shall rely on any site Investigation Reports referred to in the Contract Data, supplemented by any information available to the Bidder.

15. Queries about the Contract Data

15.1 The Engineer will clarify queries on the Contract Data.

16. Contractor to Construct the Works

16.1 The Contractor shall construct and install the Works in accordance with the Specification and Drawings, and as per instructions of Engineer.

17. The Works to Be Completed by the Intended Completion Date

17.1 The Contractor may commence execution of the Works on the Start Date and shall carry out

the Works in accordance with the program submitted by the Contractor, as updated with the

approval of the Engineer, and complete them by the Intended Completion Date.

18. Approval by the Engineer

18.1 The Contractor shall submit Specifications and Drawings showing the proposed Temporary

Works to the Engineer, who is to approve them if they comply with the Specifications and

Drawings.

18.2 The Contractor shall be responsible for design of Temporary Works.

18.3 The Engineer's approval shall not alter the Contractor's responsibility for design of the

Temporary Works.

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18.4 The Contractor shall obtain approval of third parties to the design of the Temporary Works

where required.

18.5 All Drawings prepared by the Contractor for the execution of the temporary or permanent

Works, are subject to prior approval by the Engineer before their use.

19. Safety

19.1 The Contractor shall be responsible for the safety of all activities on the Site.

20. Discoveries

20.1 Anything of historical or other interest or of significant value unexpectedly discovered on

the Site is the property of the Employer. The Contractor is to notify the Engineer of such

discoveries and carry out the Engineer's instructions for dealing with them.

21. Possession of the Site

21.1 The Employer shall give possession of all parts of the Site to the Contractor. If possession

of a part is not given by the date stated in the Contract Data the Employer is deemed to have

delayed the start of the relevant activities and this will be Compensation Event.

22. Access to the Site

22.1 The Contractor shall allow the Engineer and any person authorized by the Engineer access

to the Site, to any place where work in connection with the Contract is being carried out or

is intended to be carried out and to any place where materials or plant are being

manufactured / fabricated / assembled for the works.

23. Instructions

23.1 The Contractor shall carry out all instructions of the Engineer which comply with the

applicable laws where the Site is located.

23.2 The Contractor shall permit, and shall cause its Subcontractors and sub consultants to

permit, the Bank and/or persons appointed by the Bank to inspect the Site and/or the

accounts and records of the Contractor and its sub-contractors relating to the performance of

the Contract and the submission of the bid, and to have such accounts and records audited

by auditors appointed by the Bank if requested by the Bank. The Contractor’s and its

Subcontractors’ and sub-consultants’ attention is drawn to Sub-Clause 64.1 which provides,

inter alia, that acts intended to materially impede the exercise of the Bank’s inspection and

audit rights provided for under Sub-Clause 23.2 constitute a prohibited practice subject to

contract termination (as well as to a determination of ineligibility pursuant to the Bank’s

prevailing sanctions procedures).

.

24. Disputes

24.1 If the Contractor believes that a decision taken by the Engineer was either outside the

authority given to the Engineer by the Contract or that the decision was wrongly taken, the

45

decision shall be referred to the Adjudicator within 14 days of the notification of the

Engineer's decision.

25. Procedure for Disputes

25.1 The Adjudicator shall give a decision in writing within 28 days of receipt of a notification

of a dispute.

25.2 The Adjudicator shall be paid daily at the rate specified in the Contract Data together with

reimbursable expenses of the types specified in the Contract Data and the cost shall be

divided equally between the Employer and the Contractor, whatever decision is reached by

the Adjudicator. Either party may refer a decision of the Adjudicator to an Arbitrator within

28 days of the Adjudicator's written decision. If neither party refers the dispute to arbitration

within the above 28 days, the Adjudicator's decision will be final and binding.

25.3 The arbitration shall be conducted in accordance with the arbitration procedure stated in the

Special Conditions of Contract.

26. Replacement of Adjudicator

26.1 Should the Adjudicator resign or die, or should the Employer and the Contractor agree that

the Adjudicator is not fulfilling his functions in accordance with the provisions of the

Contract; a new Adjudicator will be jointly appointed by the Employer and the Contractor.

In case of disagreement between the Employer and the Contractor, within 30 days, the

Adjudicator shall be designated by the Appointing Authority designated in the Contract

Data at the request of either party, within 14 days of receipt of such request.

B. Time Control

27. Program

27.1 Within the time stated in the Contract Data the Contractor shall submit to the Engineer for

approval a Program including Environmental Management Plan showing the general

methods, arrangements, order, and timing for all the activities in the Works along with

monthly cash flow forecast

27.2 An update of the Program shall be a program showing the actual progress achieved on each

activity and the effect of the progress achieved on the timing of the remaining work

including any changes to the sequence of the activities.

27.3 The Contractor shall submit to the Engineer, for approval, an updated Program at intervals

no longer than the period stated in the Contract Data. If the Contractor does not submit an

updated Program within this period, the Engineer may withhold the amount stated in the

Contract Data from the next payment certificate and continue to withhold this amount until

the next payment after the date on which the overdue Program has been submitted.

27.4 The Engineer's approval of the Program shall not alter the Contractor's obligations. The

Contractor may revise the Program and submit it to the Engineer again at any time. A

revised Program is to show the effect of Variations and Compensation Events.

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28. Extension of the Intended Completion Date

28.1 The Engineer shall extend the Intended Completion Date if a Compensation Event occurs or

a Variation is issued which makes it impossible for Completion to be achieved by the

Intended Completion Date without the Contractor taking steps to accelerate the remaining

work and which would cause the Contractor to incur additional cost.

28.2 The Engineer shall decide whether and by how much to extend the Intended Completion Date

within 21 days of the Contractor asking the Engineer for a decision upon the effect of a

Compensation Event or Variation and submitting full supporting information. If the Contractor

has failed to give early warning of a delay or has failed to cooperate in dealing with a delay, the

delay by this failure shall not be considered in assessing the new Intended Completion Date.

29. Deleted

30. Delays Ordered by the Engineer

30.1 The Engineer may instruct the Contractor to delay the start or progress of any activity within the

Works.

31. Management Meetings

31.1 Either the Engineer or the Contractor may require the other to attend a management meeting.

The business of a management meeting shall be to review the plans for remaining work and to

deal with matters raised in accordance with the early warning procedure.

31.2 The Engineer shall record the business of management meetings and is to provide copies of his

record to those attending the meeting and to the Employer. The responsibility of the parties for

actions to be taken is to be decided by the Engineer either at the management meeting or after

the management meeting and stated in writing to all who attended the meeting.

32. Early Warning

32.1 The Contractor is to warn the Engineer at the earliest opportunity of specific likely future events

or circumstances that may adversely affect the quality of the work, increase the Contract Price

or delay the execution of works. The Engineer may require the Contractor to provide an

estimate of the expected effect of the future event or circumstance on the Contract Price and

Completion Date. The estimate is to be provided by the Contractor as soon as reasonably

possible.

32.2 The Contractor shall cooperate with the Engineer in making and considering proposals for how

the effect of such an event or circumstance can be avoided or reduced by anyone involved in the

work and in carrying out any resulting instruction of the Engineer.

C. Quality Control

33. Identifying Defects

33.1 The Engineer shall check the Contractor's work and notify the Contractor of any Defects that are

found. Such checking shall not affect the Contractor's responsibilities. The Engineer may

47

instruct the Contractor to search for a Defect and to uncover and test any work that the Engineer

considers may have a Defect.

33.2 The contractor shall permit the Employer’s Technical auditor to check the contractor’s work

and notify the Engineer and Contractor of any defects that are found. Such a check shall not

affect the Contractor’s or the Engineer’s responsibility as defined in the Contract Agreement.

34. Tests

34.1 If the Engineer instructs the Contractor to carry out a test not specified in the Specification

to check whether any work has a Defect and the test shows that it does, the Contractor shall

pay for the test and any samples. If there is no Defect the test shall be a Compensation

Event.

35. Correction of Defects

35.1 The Engineer shall give notice to the Contractor of any Defects before the end of the

Defects Liability Period, which begins at Completion and is defined in the Contract Data.

The Defects Liability Period shall be extended for as long as Defects remain to be corrected.

35.2 Every time notice of a Defect is given, the Contractor shall correct the notified Defect

within the length of time specified by the Engineer’s notice.

36. Uncorrected Defects

36.1 If the Contractor has not corrected a Defect within the time specified in the Engineer’s

notice, the Engineer will assess the cost of having the Defect corrected, and the Contractor

will pay this amount.

Note: Where in certain cases, the technical specifications provide for acceptance of works within specified tolerance

limits at reduced rates, Engineer will certify payments to Contractor accordingly.

D. Cost Control

37. Bill of Quantities

37.1 The Bill of Quantities shall contain items for the construction, installation, testing and commissioning work to be done by the contractor.

37.2 The Bill of Quantities is used to calculate the Contract Price. The Contractor is paid for the quantity of the work done at the rate in the Bill of Quantities for each item.

38. Changes in the Quantities

38.1 If the final quantity of the work done differs from the quantity in the Bill of Quantities for the particular item by more than 25 percent, provided that change exceed 1% of Initial Contract Price, the Engineer shall adjust the rate to allow for the change.

38.2 The Engineer shall not adjust rates from changes in quantities if thereby the Initial Contract Price is exceeded by 15 percent, except with the Prior permission of the Employer.

38.3 If requested by the Engineer, the Contractor shall provide the Engineer with a detailed cost breakdown of any rate in the Bill of Quantities.

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39. Variations

39.1 All Variations shall be included in updated Programs produced by the Contractor.

40. Payments for Variations

40.1 The Contractor shall provide the Engineer with a quotation (with breakdown of unit rates) for carrying out the Variation when requested to do so by the Engineer. The Engineer shall assess the quotation, which shall be given within seven days of the request or within any longer period stated by the Engineer and before the Variation is ordered.

40.2 If the work in the Variation corresponds with an item description in the Bill of Quantities and if, in the opinion of the Engineer, the quantity of work above the limit stated in Sub Clause 38.1 or the timing of its execution do not cause the cost per unit of quantity to change, the rate in the bill of Quantities shall be used to calculate the value of the Variation. If the cost per unit of quantity changes, or if the nature or timing of the work in the Variation does not correspond with items in the Bill of Quantities, the quotation by the Contractor shall be in form of new rates for the relevant items of work.

40.3 If the Contractor's quotation is unreasonable (or if the contractor fails to provide the Engineer with a

quotation within a reasonable time specified by the engineer in accordance with Clause 40.1),, the Engineer

may order the Variation and make a change to the Contract Price which shall be based on

Engineer’s own forecast of the effects of the Variation on the Contractor's costs.

40.4 If the Engineer decides that the urgency of varying the work would prevent a quotation being given and considered without delaying the work, no quotation shall be given and the Variation shall be treated as a Compensation Event.

40.5 The Contractor shall not be entitled to additional payment for costs that could have been avoided by giving early warning.

41. Cash flow forecasts

41.1 When the Program is updated, the contractor is to provide the Engineer with an updated

cash flow forecast.

42. Payment Certificates

42.1 The Contractor shall submit to the Engineer monthly statements of the estimated value of

the work completed less the cumulative amount certified previously.

42.2 The Engineer shall check the Contractor's monthly statement and within 14 days certify the

amount to be paid to the Contractor after taking into account any credit or debit for the

month in question in respect of materials for the works in the relevant amounts and under

conditions set forth in sub-clause 51(3) of the Contract Data (Secured Advance).

42.3 The value of work executed shall be determined by the Engineer after due check

measurement of the quantities claimed as executed by the contractor.

42.4 The value of work executed shall comprise the value of the quantities of the items in the

Bill of Quantities completed.

42.5 The value of work executed shall include the valuation of Variations and Compensation

Events.

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42.6 The Engineer may exclude any item certified in a previous certificate or reduce the

proportion of any item previously certified in any certificate in the light of later information.

43. Payments

43.1 Payments shall be adjusted for deductions for advance payments, retention, other recoveries

in terms of the contract and taxes, at source, as applicable under the law. The Employer

shall pay the Contractor the amounts certified by the Engineer within 28 days of the date of

each certificate. If the Employer makes a late payment, the Contractor shall be paid interest

on the late payment in the next payment. Interest shall be calculated from the date by which

the payment should have been made up to the date when the late payment is made at 8% per

annum.

43.2 If an amount certified is increased in a later certificate or as a result of an award by the

Adjudicator or an Arbitrator, the Contractor shall be paid interest upon the delayed payment

as set out in this clause. Interest shall be calculated from the date upon which the increased

amount would have been certified in the absence of dispute.

43.3 Items of the Works for which no rate or price has been entered in will not be paid for by the

Employer and shall be deemed covered by other rates and prices in the Contract.

44. Compensation Events

44.1 The following are Compensation Events unless they are caused by the Contractor:

(a) The Employer does not give access to a part of the Site by the Site Possession Date

stated in the Contract Data.

(b) The Employer modifies the schedule of other contractors in a way which affects the

work of the contractor under the contract.

(c) The Engineer orders a delay or does not issue drawings, specifications or instructions

required for execution of works on time.

(d) The Engineer instructs the Contractor to uncover or to carry out additional tests upon

work which is then found to have no Defects.

(e) The Engineer unreasonably does not approve for a subcontract to be let.

(f) Ground conditions are substantially more adverse than could reasonably have been

assumed before issuance of Letter of Acceptance from the information issued to

Bidders (including the Site Investigation Reports), from information available publicly

and from a visual inspection of the Site.

(g) The Engineer gives an instruction for dealing with an unforeseen condition, caused by

the Employer, or additional work required for safety or other reasons.

(h) Other contractors, public authorities, utilities or the Employer does not work within

the dates and other constraints stated in the Contract, and they cause delay or extra

cost to the Contractor.

(i) The advance payment is delayed.

50

(j) The effect on the Contractor of any of the Employer’s Risks.

(k) The Engineer unreasonably delays issuing a Certificate of Completion.

(l) Other Compensation Events listed in the Contract Data or mentioned in the Contract.

44.2 If a Compensation Event would cause additional cost or would prevent the work being

completed before the Intended Completion Date, the Contract Price shall be increased

and/or the Intended Completion Date is extended. The Engineer shall decide whether and by

how much the Contract Price shall be increased and whether and by how much the Intended

Completion Date shall be extended.

44.3 As soon as information demonstrating the effect of each Compensation Event upon the

Contractor's forecast cost has been provided by the Contractor, it is to be assessed by the

Engineer and the Contract Price shall be adjusted accordingly. If the Contractor's forecast is

deemed unreasonable, the Engineer shall adjust the Contract Price based on Engineer’s own

forecast. The Engineer will assume that the Contractor will react competently and promptly

to the event.

44.4 The Contractor shall not be entitled to compensation to the extent that the Employer's

interests are adversely affected by the Contractor not having given early warning or not

having cooperated with the Engineer.

45. Tax

45.1(a) The rates quoted by the Contractor shall be deemed to be inclusive of the sales and other

taxes that the Contractor will have to pay for the performance of this Contract. The

Employer will perform such duties in regard to the deduction of such taxes at source as per

applicable law.

46. Currencies

46.1 All payments shall be made in Indian Rupees.

47. Price Adjustment

Deleted

48. Retention

48.1 The Employer shall retain from each payment due to the Contractor the proportion stated in

the Contract Data until Completion of the whole of the Works.

48.2 On Completion of the whole of the Works half the total amount retained is repaid to the

Contractor and half when the Defects Liability Period has passed and the Engineer has

certified that all Defects notified by the Engineer to the Contractor before the end of this

period have been corrected.

48.3 On completion of the whole works, the contractor may substitute retention money with an

“on demand” Bank guarantee.

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49. Liquidated Damages

49.1 The Contractor shall pay liquidated damages to the Employer at the rate per day stated in the

Contract Data for each day that the Completion Date is later than the Intended Completion

Date (for the whole of the works or the milestone as stated in the contract data). The total

amount of liquidated damages shall not exceed the amount defined in the Contract Data.

The Employer may deduct liquidated damages from payments due to the Contractor.

Payment of liquidated damages does not affect the Contractor's liabilities.

49.2 If the Intended Completion Date is extended after liquidated damages have been paid, the

Engineer shall correct any overpayment of liquidated damages by the Contractor by

adjusting the next payment certificate. The Contractor shall be paid interest on the over

payment calculated from the date of payment to the date of repayment at the rates specified

in Sub Clause 43.1.

50. Deleted

51. Advance Payment

51.1 The Employer shall make advance payment to the Contractor of the amounts stated in the

Contract Data by the date stated in the Contract Data, against provision by the Contractor of

an Unconditional Bank Guarantee in a form and by a bank acceptable to the Employer in

amounts and currencies equal to the advance payment. The guarantee shall remain effective

until the advance payment has been repaid, but the amount of the guarantee shall be

progressively reduced by the amounts repaid by the Contractor. Interest will not be charged

on the advance payment.

51.2 The Contractor is to use the advance payment only to pay for Equipment, Plant and

Mobilization expenses required specifically for execution of the Works. The Contractor

shall demonstrate that advance payment has been used in this way by supplying copies of

invoices or other documents to the Engineer.

51.3 The advance payment shall be repaid by deducting proportionate amounts from payments

otherwise due to the Contractor, following the schedule of completed percentages of the

Works on a payment basis. No account shall be taken of the advance (mobilization and

equipment only) payment or its repayment in assessing valuations of work done, Variations,

price adjustments, Compensation Events, or Liquidated Damages.

51.4 Secured Advance:

The Engineer shall make advance payment in respect of materials intended for but not yet

incorporated in the Works in accordance with conditions stipulated in the Contract Data.

52. Securities

52.1 The Performance Security shall be provided to the Employer no later than the date specified

in the Letter of Acceptance and shall be issued in an amount and form and by a bank or

surety acceptable to the Employer, and denominated in Indian Rupees. The Performance

Security shall be valid until a date 28 days from the date of expiry of Defects Liability

Period and the additional security for unbalanced bids shall be valid until a date 28 days

from the date of issue of the certificate of completion.

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53. Deleted

54. Cost of Repairs

54.1 Loss or damage to the Works or Materials to be incorporated in the Works between the Start

Date and the end of the Defects Correction periods shall be remedied by the Contractor at

the Contractor's cost if the loss or damage arises from the Contractor's acts or omissions.

E. Finishing the Contract

55. Completion

55.1 The Contractor shall request the Engineer to issue a Certificate of Completion of the Works

and the Engineer will do so upon deciding that the Work is completed.

56. Taking Over

56.1 The Employer shall take over the Site and the Works within seven days of the Engineer

issuing a certificate of Completion.

57. Final Account

57.1 The Contractor shall supply to the Engineer a detailed account of the total amount that the

Contractor considers payable under the Contract before the end of the Defects Liability

Period. The Engineer shall issue a Defect Liability Certificate and certify any final payment

that is due to the Contractor within 56 days of receiving the Contractor's account if it is

correct and complete. If it is not, the Engineer shall issue within 56 days a schedule that

states the scope of the corrections or additions that are necessary. If the Final Account is

still unsatisfactory after it has been resubmitted, the Engineer shall decide on the amount

payable to the Contractor and issue a payment certificate, within 56 days of receiving the

Contractor’s revised account.

58. Operating and Maintenance Manuals

58.1 If “as built” Drawings and/or operating and maintenance manuals are required, the

Contractor shall supply them by the dates stated in the Contract Data.

58.2 If the Contractor does not supply the Drawings and/or manuals by the dates stated in the

Contract Data, or they do not receive the Engineer’s approval, the Engineer shall withhold

the amount stated in the Contract Data from payments due to the Contractor.

59. Termination

59.1 The Employer or the Contractor may terminate the Contract if the other party causes a

fundamental breach of the Contract.

59.2 Fundamental breaches of Contract include, but shall not be limited to the following:

(a) the Contractor stops work for 28 days when no stoppage of work is shown on the

current program and the stoppage has not been authorized by the Engineer;

(b) the Engineer instructs the Contractor to delay the progress of the Works and the

instruction is not withdrawn within 28 days;

53

(c) the Employer or the Contractor is made bankrupt or goes into liquidation other than

for a reconstruction or amalgamation;

(d) a payment certified by the Engineer is not paid by the Employer to the Contractor

within 56 days of the date of the Engineer's certificate;

(e) the Engineer gives Notice that failure to correct a particular Defect is a fundamental

breach of Contract and the Contractor fails to correct it within a reasonable period of

time determined by the Engineer;

(f) the Contractor does not maintain a security which is required;

(g) the Contractor has delayed the completion of works by the number of days for which

the maximum amount of liquidated damages can be paid as defined in the Contract

data; and

(h) if the Contractor, in the judgment of the Purchaser has engaged in fraud and

corruption, as defined in GCC Clause 64, in competing for or in executing the

Contract.

59.3 When either party to the Contract gives notice of a breach of contract to the Engineer for a cause other than those listed under Sub Clause 59.2 above, the Engineer shall decide whether the breach is fundamental or not.

59.4 Notwithstanding the above, the Employer may terminate the Contract for convenience.

59.5 If the Contract is terminated the Contractor shall stop work immediately, make the Site safe and secure and leave the Site as soon as reasonably possible.

60. Payment upon Termination 60.1 If the Contract is terminated because of a fundamental breach of Contract by the Contractor,

the Engineer shall issue a certificate for the value of the work done less advance payments received up to the date of the issue of the certificate, less other recoveries due in terms of the contract, less taxes due to be deducted at source as per applicable law and less the percentage to apply to the work not completed as indicated in the Contract Data. Additional Liquidated Damages shall not apply. If the total amount due to the Employer exceeds any payment due to the Contractor the difference shall be a debt payable to the Employer.

60.2 If the Contract is terminated at the Employer's convenience or because of a fundamental

breach of Contract by the Employer, the Engineer shall issue a certificate for the value of the work done, the reasonable cost of removal of Equipment, repatriation of the Contractor's personnel employed solely on the Works, and the Contractor's costs of protecting and securing the Works and less advance payments received up to the date of the certificate, less other recoveries due in terms of the contract and less taxes due to be deducted at source as per applicable law.

61. Property

61.1 All materials on the Site, Plant, Equipment, Temporary Works and Works are deemed to be the property of the Employer, if the Contract is terminated because of a Contractor’s default.

54

62. Release from Performance

62.1 If the Contract is frustrated by the outbreak of war or by any other event entirely outside the control of either the Employer or the Contractor the Engineer shall certify that the Contract has been frustrated. The Contractor shall make the Site safe and stop work as quickly as possible after receiving this certificate and shall be paid for all work carried out before receiving it and for any work carried out afterwards to which commitment was made.

63. Suspension of World Bank Loan

63.1 In the event that the World Bank suspends the Loan to the Employer, from which part of the payments to the Contractor are being made:

(a) The Employer is obligated to notify the Contractor of such suspension within 7 days of having received the World Bank’s suspension notice.

(b) If the Contractor has not received sums due to it upon the expiration of the 28 days for

payment provided for in Sub-Clause 43.1, the Contractor may immediately issue a 14-day

termination notice.

64. Fraud and Corruption

64.1 It is the Bank’s policy to require that Borrowers (including beneficiaries of Bank loans), bidders, suppliers,

contractors and their agents (whether declared or not), sub-contractors, sub-consultants, service providers or

suppliers, and any personnel thereof, observe the highest standard of ethics during the procurement and execution of

Bank-financed contracts . In pursuance of this policy, the Bank:

(a) defines, for the purposes of this provision, the terms set forth below as follows:

(i) “corrupt practice” is the offering, giving, receiving or soliciting, directly or indirectly, of anything of

value to influence improperly the actions of another party5;

(ii) “fraudulent practice” is any act or omission, including a misrepresentation, that knowingly or

recklessly misleads, or attempts to mislead, a party to obtain a financial or other benefit or to avoid

an obligation6;

(iii) “collusive practice” is an arrangement between two or more parties designed to achieve an improper

purpose, including to influence improperly the actions of another party7;

(iv) “coercive practice” is impairing or harming, or threatening to impair or harm, directly or indirectly,

any party or the property of the party to influence improperly the actions of a party8;

(v) “obstructive practice” is

(aa) deliberately destroying, falsifying, altering or concealing of evidence material to the

investigation or making false statements to investigators in order to materially impede a Bank

investigation into allegations of a corrupt, fraudulent, coercive or collusive practice; and/or

threatening, harassing or intimidating any party to prevent it from disclosing its knowledge of

matters relevant to the investigation or from pursuing the investigation, or

5 For the purpose of this sub-paragraph, “another party” refers to a public official acting in relation to the procurement process or

contract execution. In this context, “public official” includes World Bank staff and employees of other organizations taking or reviewing

procurement decisions.

6 For the purpose of this sub-paragraph, “party” refers to a public official; the terms “benefit” and “obligation” relate to the procurement

process or contract execution; and the “act or omission” is intended to influence the procurement process or contract execution.

7 For the purpose of this sub-paragraph, “parties” refers to participants in the procurement process (including public officials) attempting

either themselves, or through another person or entity not participating in the procurement or selection process, to simulate competition or

to establish bid prices at artificial, non competitive levels, or are privy to each other’s bid prices or other conditions.

8 For the purpose of this sub-paragraph, “party” refers to a participant in the procurement process or contract execution.

55

(bb) acts intended to materially impede the exercise of the Bank’s inspection and audit rights

provided for under paragraph 1.16(e) below.

(b) will reject a proposal for award if it determines that the bidder recommended for award, or any of its

personnel, or its agents, or its sub-consultants, sub-contractors, service providers, suppliers and/or their

employees, has, directly or indirectly, engaged in corrupt, fraudulent, collusive, coercive or obstructive

practices in competing for the contract in question;

(c) will declare misprocurement and cancel the portion of the loan allocated to a contract if it determines at

any time that representatives of the Borrower or of a recipient of any part of the proceeds of the loan

engaged in corrupt, fraudulent, collusive, coercive or obstructive practices during the procurement or the

implementation of the contract in question, without the Borrower having taken timely and appropriate

action satisfactory to the Bank to address such practices when they occur, including by failing to inform the

Bank in a timely manner at the time they knew of the practices;

(d) will sanction a firm or individual, at any time, in accordance with prevailing Bank’s sanctions procedures ,

including by publicly declaring such firm or individual ineligible, either indefinitely or for a stated period

of time: (i) to be awarded a Bank-financed contract; and (ii) to be a nominated sub-contractor, consultant,

supplier or services provider of an otherwise eligible firm being awarded a Bank-financed contract;

64.2 In further pursuance of this policy, bidders, suppliers and contractors, and their sub-contractors, agents, personnel,

consultants, service providers or suppliers, shall permit the Bank to inspect all accounts, records and other

documents relating to the submission of bid and contract performance, and to have them audited by auditors

appointed by the Bank.

64.3 Furthermore, bidders shall be aware of the provision stated in GCC Sub-Clauses 23.2 and 59.2 (h).

56

F. Special Conditions of Contract

1. LABOUR :

The Contractor shall, unless otherwise provided in the Contract, make his own arrangements for the engagement of all staff and labour, local or other, and for their payment, housing, feeding and transport.

The Contractor shall, if required by the Engineer, deliver to the Engineer a return in detail, in such form and at such intervals as the Engineer may prescribe, showing the staff and the numbers of the several classes of labour from time to time employed by the Contractor on the Site and such other information as the Engineer may require.

2. COMPLIANCE WITH LABOUR REGULATIONS :

During continuance of the contract, the Contractor and his sub contractors shall abide at all times by all existing labour enactments and rules made there under, regulations, notifications and bye laws of the State or Central Government or local authority and any other labour law (including rules), regulations, bye laws that may be passed or notification that may be issued under any labour law in future either by the State or the Central Government or the local authority. Salient features of some of the major labour laws that are applicable to construction industry are given below. The Contractor shall keep the Employer indemnified in case any action is taken against the Employer by the competent authority on account of contravention of any of the provisions of any Act or rules made there under, regulations or notifications including amendments. If the Employer is caused to pay or reimburse, such amounts as may be necessary to cause or observe, or for non-observance of the provisions stipulated in the notifications/bye laws/Acts/Rules/regulations including amendments, if any, on the part of the Contractor, the Engineer/Employer shall have the right to deduct any money due to the Contractor including his amount of performance security. The Employer/Engineer shall also have right to recover from the Contractor any sum required or estimated to be required for making good the loss or damage suffered by the Employer.

The employees of the Contractor and the Sub-Contractor in no case shall be treated as the employees of the Employer at any point of time.

SALIENT FEATURES OF SOME MAJOR LABOUR LAWS APPLICABLE TO

ESTABLISHMENTS ENGAGED IN BUILDING AND OTHER CONSTRUCTION WORK.

(The law as current on the date of bid opening will apply)

(a) Workmen Compensation Act 1923: The Act provides for compensation in case of injury by accident arising out of and during the course of employment.

(b) Payment of Gratuity Act 1972: Gratuity is payable to an employee under the Act on satisfaction of certain conditions on separation if an employee has completed 5 years service or more or on death the rate of 15 days wages for every completed year of service. The Act is applicable to all establishments employing 10 or more employees.

(c) Employees P.F. and Miscellaneous Provision Act 1952: The Act Provides for monthly contributions by the employer plus workers @ 10% or 8.33%. The benefits payable under the Act are :

(i) Pension or family pension on retirement or death, as the case may be.

(ii) Deposit linked insurance on the death in harness of the worker.

(iii) Payment of P.F. accumulation on retirement/death etc.

57

(d) Maternity Benefit Act 1951: The Act provides for leave and some other benefits to women employees in case of confinement or miscarriage etc.

(e) Contract Labour (Regulation & Abolition) Act 1970: The Act provides for certain welfare measures to be provided by the Contractor to contract labour and in case the Contractor fails to provide, the same are required to be provided, by the Principal Employer by Law. The Principal Employer is required to take Certificate of Registration and the Contractor is required to take license from the designated Officer. The Act is applicable to the establishments or Contractor of Principal Employer if they employ 20 or more contract labour.

(f) Minimum Wages Act 1948: The Employer is supposed to pay not less than the Minimum Wages fixed by appropriate Government as per provisions of the Act if the employment is a scheduled employment. Construction of Buildings, Roads, Runways are scheduled employments.

(g) Payment of Wages Act 1936: It lays down as to by what date the wages are to be paid, when it will be paid and what deductions can be made from the wages of the workers.

(h) Equal Remuneration Act 1979: The Act provides for payment of equal wages for work of equal nature to Male and Female workers and for not making discrimination against Female employees in the matters of transfers, training and promotions etc.

(i) Payment of Bonus Act 1965: The Act is applicable to all establishments employing 20 or more employees. The Act provides for payments of annual bonus subject to a minimum of 8.33% of wages and maximum of 20% of wages to employees drawing Rs.3500/-per month or less. The bonus to be paid to employees getting Rs.2500/- per month or above up to Rs.3500/- per month shall be worked out by taking wages as Rs.2500/-per month only. The Act does not apply to certain establishments. The newly set-up establishments are exempted for five years in certain circumstances. Some of the State Governments have reduced the employment size from 20 to 10 for the purpose of applicability of this Act.

(j) Industrial Disputes Act 1947: The Act lays down the machinery and procedure for resolution of Industrial disputes, in what situations a strike or lock-out becomes illegal and what are the requirements for laying off or retrenching the employees or closing down the establishment.

(k) Industrial Employment (Standing Orders) Act 1946: It is applicable to all establishments employing 100 or more workmen (employment size reduced by some of the States and Central Government to 50). The Act provides for laying down rules governing the conditions of employment by the Employer on matters provided in the Act and get the same certified by the designated Authority.

(l) Trade Unions Act 1926: The Act lays down the procedure for registration of trade unions of workmen and employers. The Trade Unions registered under the Act have been given certain immunities from civil and criminal liabilities.

(m) Child Labour (Prohibition & Regulation) Act 1986: The Act prohibits employment of children below 14 years of age in certain occupations and processes and provides for regulation of employment of children in all other occupations and processes. Employment of Child Labour is prohibited in Building and Construction Industry.

(n) Inter-State Migrant workmen’s (Regulation of Employment & Conditions of Service) Act 1979: The Act is applicable to an establishment which employs 5 or more inter-state migrant workmen through an intermediary (who has recruited workmen in one state for employment in the establishment situated in another state). The Inter-State migrant workmen, in an establishment to which this Act becomes applicable, are required to be provided certain facilities such as housing, medical aid, travelling expenses from home up to the establishment and back, etc.

58

(o) The Building and Other Construction workers (Regulation of Employment and Conditions of Service) Act 1996 and the Cess Act of 1996: All the establishments who carry on any building or other construction work and employs 10 or more workers are covered under this Act. All such establishments are required to pay cess at the rate not exceeding 2% of the cost of construction as may be modified by the Government. The Employer of the establishment is required to provide safety measures at the Building or construction work and other welfare measures, such as Canteens, First-Aid facilities, Ambulance, Housing accommodations for workers near the work place etc. The Employer to whom the Act applies has to obtain a registration certificate from the Registering Officer appointed by the Government.

(p) Factories Act 1948: The Act lays down the procedure for approval at plans before setting up a factory, health and safety provisions, welfare provisions, working hours, annual earned leave and rendering information regarding accidents or dangerous occurrences to designated authorities. It is applicable to premises employing 10 persons or more with aid of power or 20 or more persons without the aid of power engaged in manufacturing process.

3. SUB-CONTRACTING (GCC Clause 7)

Please add the following as Clause 7.2:

The contractor shall not be required to obtain any consent from the employer for:

(a) The sub-contracting of any part of the Works for which the Sub-contractor is named in the

contract;

(b) The provision of labour; and

(c) The purchase of materials which are in accordance with the standards specified in the Contract.

Beyond this if the contractor proposes sub-contracting any part of the work during execution of

works, because of some unforeseen circumstances to enable him to complete the work as per

terms of the contract, the Engineer will consider the following before according approval:

- The contractor shall not sub-contract the whole of the Works.

- The contractor shall not sub-contract any part of the Work without prior consent of the

Engineer. Any such consent shall not relieve the contractor from any liability or obligations

under the contract and he shall be responsible for the acts, defaults and neglects of any sub-

contractor, his agents or workmen as fully as if they were the acts, defaults or neglects of the

contractor, his agents or workmen.

- The Engineer should satisfy whether (a) the circumstances warrant such sub-contracting; and

(b) the sub-contractors so proposed for the Work possess the experience, qualifications and

equipment necessary for the job proposed to be entrusted to them in proportion to the

quantum of work to be sub-contracted.

- If payments are proposed to be made directly to the Sub-contractor, this should be subject to

specific authorization by the prime contractor so that this arrangement does not alter the

contractor's liability or obligation under the contract.

Note:-1- all bidders are excepted to indicate clearly in the bid if they proposed sub contracting element of the works

amounting to more than 20% of the bid price. For each such proposal the qualification and the experience of the

identified sub contractor in the relevant field should be furnished along with the Bid to enable the employer to

satisfy himself about their qualification before agreeing for such sub contracting and include it in the contract. In

view of the above normally additional sub contracting should arise during execution of the contract.

2 -However[a]Sub Contracting for certain specialized element of the works is not unusual and acceptable for

carrying out the works more affectively but vertical splitting of the works for sub contracting is not acceptable

[b]In any case proposal for sub contracting in additional to what was specified in bid and stated in contract

59

agreement will not be acceptable if the value of such additional sub contracting exceed 25% of value of work

which was to be executed by contractor without sub contracting.

3- Assignment of the contract may be acceptable only under exceptional circumstances such as insolvency/

Liquidation or merger of Companies etc. .

4. ARBITRATION (GCC Clause 25.3)

The procedure for arbitration will be as follows

1. Except where otherwise specified in the contract, for the claims valued less than Rs. 50,000/- , the decision of the Adjudicator for the time being in respect of all questions & disputes relating to the meaning of the specifications, designs, drawings and instructions herein before mentioned and as to the quality of workmanship or material used on the work or as to any other question, claim, right matter or thing whatsoever, in any way arising out of or relating to the contract, designs, drawings specifications, estimates, instructions, order or those conditions or otherwise concerning the work of execution or failure the same whether arising during the progress of the work or after the completion or abandonment thereof shall be final, provided that Adjudicator before giving the decision in the matter gives an opportunity of being heard to the parties to the contract.

If any party to the contract is dissatisfied with the final decision of Adjudicator in respect of any matter, he may within 28 days after receiving notice of such decision, give notice in writing to Adjudicator requiring that the matter may be referred to Arbitration and furnishing detailed particulars of the dispute or difference and specifying clearly the points at issue. If any party fails to give such notice within the period of 28 days at stipulated above, the decision of Adjudicator already given shall be conclusive, final and binding on all the parties. In case arbitration is to be held it shall be affected by an Arbitrator to the appointed by the state Govt. whose decision shall be conclusive, final and binding on all the parties. If the work under the contract has not been completed when a dispute is referred to arbitration, work shall continue during the arbitration proceedings if it is reasonably possible and no payment due to contractor should be withheld on account of Arbitration proceedings, unless it is required Arbitrators. 2. Except where otherwise specified in the contract, for claims valued more than Rs. 50,000/- , or more the decision of Adjudicator of the Circle for the time being in respect of all questions and disputes relating to the meaning of the specifications, designs, drawings and instructions hereto before mentioned and as to the quality of workmanship or material used on the work or as to any other question, claim, right matter or thing whatsoever, in any way arising out of or relating to the contract, designs, drawings specifications, estimates, instructions, order or those conditions or otherwise concerning the work of execution or failure to execute the same whether arising during the progress of the work or after the completion or abandonment thereof shall be final, provided that Adjudicator before giving the decision in writing in the matter gives an opportunity of being heard to the parties to the contract. If any party to the contract is dissatisfied with the final decision of Adjudicator in respect of any matter, he may within 28 days after receiving notice of such decision, may refer such dispute to the Arbitration Tribunal constituted under the Madhya Pradesh Madhyastha Adhikaran Adhiniyam 1982 (No.2 of 1983).

5. PROTECTION OF ENVIRONMENT: Add the following as GCC Clause 16.2:

60

The contractor shall take all reasonable steps to protect the environment on and off the Site and to avoid damage or nuisance to persons or to property of the public or others resulting from pollution, noise or other causes arising as a consequence of his methods of operation.

During continuance of the contract, the contractor and his sub-contractors shall abide at all times

by all existing enactments on environmental protection and rules made there under, regulations, notifications and bye-laws of the State or Central Government, or local authorities and any other law, bye-law, regulations that may be passed or notification that may be issued in this respect in future by the State or Central Government or the local authority.

Salient features of some of the major laws that are applicable are given below: The Water (Prevention and Control of Pollution) Act, 1974, This provides for the prevention and

control of water pollution and the maintaining and restoring of wholesomeness of water. 'Pollution' means such contamination of water or such alteration of the physical, chemical or biological properties of water or such discharge of any sewage or trade effluent or of any other liquid, gaseous or solid substance into water (whether directly or indirectly) as may, or is likely to, create a nuisance or render such water harmful or injurious to public health or safety, or to domestic, commercial, industrial, agricultural or other legitimate uses, or to the life and health of animals or plants or of aquatic organisms.

The Air (Prevention and Control of Pollution) Act, 1981, This provides for prevention, control

and abatement of air pollution. 'Air Pollution' means the presence in the atmosphere of any 'air pollutant', which means any solid, liquid or gaseous substance (including noise) present in the atmosphere in such concentration as may be or tend to be injurious to human beings or other living creatures or plants or property or environment.

The Environment (Protection) Act, 1986, This provides for the protection and improvement of

environment and for matters connected therewith, and the prevention of hazards to human beings, other living creatures, plants and property. 'Environment' includes water, air and land and the inter-relationship which exists among and between water, air and land, and human beings, other living creatures, plants, microorganism and property.

The Public Liability Insurance Act, 1991, This provides for public liability insurance for the

purpose of providing immediate relief to the persons affected by accident occurring while handling hazardous substances and for matters connected herewith or incidental thereto. Hazardous substance means any substance or preparation which is defined as hazardous substance under the Environment (Protection) Act 1986, and exceeding such quantity as may be specified by notification by the Central Government.

[Employers should note that the Loan Agreement between IBRD and the borrowing country may establish specific

measures to be taken during construction of the Works for the protection of the environment. Sub-clause 16.2 should be modified/expanded to take into account such specific measures or other measures considered appropriate by the Employer]

6. TAX: (GCC Clause 45)

Add the following Clauses:

45.1(b) “In the contract work for construction. The workers welfare cess @ 1.00% (one percent)

shall be deducted at source while making payment by the E.E. and shall be deposited to workers

welfare fund as per the provision of Building and other construction work welfare cess at 1996”

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45.1(c) The Royalty charge shall be paid by the contractor as per rules which will not be refundable to

the contractor. The Contractor shall however be paid his final bill for the work only upon

production of the “No Royalty” charges outstanding certificate issued by the collector.

7. LIQUIDATED DAMAGES:

Sub-clause 49.1:

Please substitute the last sentence with the following:

Time is the essence of the contract and the payment of liquidated damages does not affect the

contractor liabilities and payment or deduction of liquidated damages shall not relieve the

contractor from his obligation to complete the work as per agreed construction program and

milestones or from any other of the contractor’s obligations and liabilities under the contract.”

8. MILE STONES:

Mile stones shown in the contract data are indicative only and may be decided mutually by the Engineer and the Contractor within 10 days of signing of agreement. In case this is not done the milestone shown in the contract data shall prevail.

---0---

62

SECTION IV : CONTRACT DATA

64

CONTRACT DATA

Items marked "N/A" do not apply in this Contract.

The following documents are also part of the Contract: Clause Reference

· The Schedule of Operating and Maintenance Manuals [58] (N/A)

· The Schedule of Other Contractors [8]

· The Schedule of Key Personnel [9]

· The Methodology and Program of Construction & Environmental Management Plan [27]

· The Schedule of Key and Critical equipment to be deployed [27]

on the work as per agreed program of construction

· Site Investigation reports [14]

The Borrower is Government of India/ Govt. of M.P. [1.1]

The World Bank means

International Bank for Reconstruction and Development (IBRD) [1.1]

and loan refers to an I.B.R.D. Loan

The Employer is

Name: Government of Madhya Pradesh, Water Resources Department [1.1]

Address: Mantralaya, Bhopal.

Name of authorized Representative: Chief Engineer, Chambal Betwa Basin, Water Resources

Department Bhopal (M.P.)

The Engineer is [1.1]

Name: Executive Engineer,

Address: SAS Division no-2, Vidisha

Name of Authorized Representative: Sub Divisional Officer, SAS Sub Div.No.8 Vidisha

The Adjudicator appointed jointly by the Employer and Contractor is:

*Name : Mr……………………………………………. [1.1]

*Address: ………………………………………………….

65

The name and identification number of the Contract is BALANCE WORK OF RESTRUCTURING

& MODERNISATION OF D2 & D3 L B C OF SAMRAT ASHOK SAGAR PROJECT VIDISHA

(Phase II)

[1.1]

The Works consist of re-sectioning and lining of distribution network, repair of canal structures and construction of new canal structures and other works. The Start Date shall be the date of issue of notice to proceed with the work. [1.1] The Intended Completion Date for the whole of the Works is 4 months with the following milestones. [17, 28]

Milestone dates

Cumulative Financial progress to be

achieved

Period from the date of issue of work order

notice to proceed with the work

Milestone-1 20% 01 Months

Milestone-2 40% 02 Months

Milestone-3 100 % 04 Months

The following documents also form part of the Contract: [2.3] NIL

The Contractor shall submit a revised Program including Environmental

Management Plan for the Works (in such form and detail as the Engineer shall reasonably prescribe) within 15 days of delivery of the Letter of Acceptance. [27]

[This program should be in adequate detail and generally conform to the program submitted along with bid in response to ITB Clause 4.3 (k). Deviations if any from that should be clearly explained and should be satisfactory to the Engineer]

The Site Possession Dates shall be: [21]

Within 15 days after Issue of Work Order.

The Defects Liability Period is 365 days from the date of certification of completion of works. (Where sectional completion certificate is issued this will apply from those dates for those sections). [35]

Insurance requirements are as under: [13]

Minimum Cover for Insurance (Rs. lakhs)

Maximum deductible for Insurance (Rs. lakhs)

(i) Works and Plant and Materials 1327.19 Lakhs 26.55 Lakh (ii) Loss or damage to Equipment 132.72 Lakhs 2.655 Lakh (iii) Other Property

13.27 Lakhs

0.265 Lakhs

(iv) Personal injury or death insurance:

a) for other people;

5 Lakhs/Occurrence

b) for Contractor’s Employees In accordance with the statuary requirements applicable

The following events shall also be Compensation Events: [44]

NIL

66

The period between Program updates shall be 90 days. [27]

The amount to be withheld for late submission of an updated

Program shall be Rs. 50,000/- [27]

The language of the Contract documents is English [3]

The law which applies to the Contract is the laws of Union of India [3]

The currency of the Contract is Indian Rupees. [46]

Fees and types of reimbursable expenses to be paid to the Adjudicator

Rs. 2000/- per day plus Transport, Lodging, Boarding and Report writing etc. will be paid as per actual [25]

Appointing Authority for the Adjudicator – Chairman, Institution of Engineer M.P. Chapter,

Bhopal [26]

The formula(e) for adjustment of prices are: [47]

As defined in Clause 47.1 of Conditions of Contract.

Deleted

Adjustment for labour component

Deleted

Adjustment for cement component

Deleted

Adjustment for steel component

Deleted

Adjustment for Plant and Machinery Spares component

Deleted

Adjustment of Local materials

Deleted

The proportion of payments retained (retention money) shall be 6% from each bill subject to a

maximum of 5% of final contract price [48]

The liquidated damages for the whole of the works are Rs. 66360 and that for the milestone are as

under: [49]

For milestone 1 Rs. 13272.00 per day



67

he deducted LD would be released to the contractor in the only event of the contractor completing the

whole work within the period as mentioned in the agreement or within the extended time (Extension

granted due to compensation event as defined in clause 44 of CC)."

The maximum amount of liquidated damages for the whole of the works is ten percent of final contract

price. [49]

The amounts of the advance payment are: [51]

Nature of Advance Amount (Rs.) Conditions to be fulfilled

1. Mobilization 5% of the Contract

price

On submission of un-conditional Bank Guarantee.

(to be drawn before end of 20% of Contract period)

2. Equipment

(This advance is not

applicable for

equipment already

owned or hired/

leased by the

contractor.)

90% for new and

50% of depreciated

value for old

equipment. Total

amount will be

subject to a

maximum of 5% of

the Contract price.

After equipment is brought to site as per agreed

construction program (provided the Engineer is satisfied

that the equipment is required for performance of the

contract) and on submission of unconditional Bank

Guarantee for amount of advance.

3. Secured advance

for non-

perishable

materials brought

to site

75% of Invoice

value or Market

value - lower of the

two.

a) The materials are in-accordance with the specification

for Works;

b) Such materials have been delivered to site, and are

properly stored and protected against damage or

deterioration to the satisfaction of the Engineer. The

contractor shall store the bulk material in measurable

stacks.;

c) The Contractor’s records of the requirements, orders,

receipt and use of materials are kept in a form

approved by the Engineer and such records shall be

available for inspection by the Engineer;

d)The contractor has submitted with his monthly

statement the estimated value of the materials on site

together with such documents as may be required by

the Engineer for the purpose of valuation of the

materials and providing evidence of ownership and

payment thereof;

e) Ownership of such materials shall be deemed to vest in

the Employer for which the Contractor has submitted

an Indemnity Bond in an acceptable format; and

f) The quantity of materials are not excessive and shall be

used within a reasonable time as determined by the

Engineer.

Repayment of advance payment for mobilization and equipment: [51]

68

The advance shall be repaid with percentage deductions from the interim payments certified by the

Engineer under the Contract. Deductions shall commence in the next Interim Payment Certificate

following that in which the total of all such payments to the Contractor has reached not less than

15 percent of the Contract Price or 02 months from the date of payment of first installment of advance,

whichever period concludes earlier, and shall be made at the rate of 15 percent (of 10 % advance) of

the amounts of all Interim Payment Certificates until such time as the advance has been repaid, always

provided that the advance shall be completely repaid prior to the expiry of the original time for

completion.

Repayment of secured advance:

The advance shall be repaid from each succeeding monthly payments to the extent materials [for which

advance was previously paid pursuant to Clause 51.4 of G.C.C. and 51(3) of Contract Data on pre page]

have been incorporated into the Works.

The Securities shall be for the following minimum amounts equivalent as a percentage of the Contract

Price: [52]

Performance Security for 5 per cent of contract price Rs......................................................and for unbalanced

bids “items for which the tendered has quoted rates higher than the overall percentage of the tender, the engineer

in charge shall limit the payment of such items to the estimated rate of that item, plus or minus overall

percentage above/below as the case may be of the estimated rate. All the balance payment of such items shall be

retained by the Engineer in charge as additional security deposit, which shall be released only after the

completion of entire work. If the contractor leaves the works incomplete for any reason, the addition security

deposit so deducted shall stand forfeited to the govt.”

[in terms of ITB Clause 29.5].

The standard form of Performance Security acceptable to the Employer shall be an unconditional Bank

Guarantee of the type as presented in Section 8 of the Bidding Documents.

The date by which "as-built" drawings (in scale 1 in 10) in 2 sets are required is within 28 days of issue

of certificate of completion of the whole or section of the work, as the case may be. [58]

The amount to be withheld for failing to supply "as built" drawings by the date required is

Rs. 50,000/-

The following events shall also be fundamental breach of contract: [59.2]

1. The Contractor has contravened Sub-clause 7 of GCC read with SCC and Clause 9.0 of

GCC

2. The contractor does not adhere to the agreed construction program and agreed

environmental management plan (Clause 27 of GCC) and also fails to take satisfactory

remedial action as per agreements reached in the management meetings (Clause 31) for a

period of 60 days.

3. The contractor fails to carry out of the instructions of Engineer within a reasonable time

determined by the Engineer in accordance with GCC Clause 16.1 and 23.1.

The percentage to apply to the value of the work not completed representing the Employer's [60],

Additional cost for completing the Works shall be 20 percent. ---0---

69

SCOPE OF WORK

The Government of India has received a loan from the International Bank for reconstruction and

development for Madhya Pradesh water sector Restructuring Project and intends a part of the funds to

cover eligible payments under this contract for construction of following works.

“BALANCE WORK OF RESTRUCTURING & MODERNISATION

OF D2 & D3 L B C OF SAMRAT ASHOK SAGAR PROJECT VIDISHA (Phase II)”

Further Details are as below:

CANAL WORK :

Earthwork:

Earth work includes earth work on canal system where ever required in order to make each

component up to designed standard as shown in drawing, specification and bill of quantities. Earth work in canal has to be carried out both in filling section as well as in cutting section as per

details shown in drawing in reaches where section of canal are not as per design. Earth work in filling

reaches of canal has to be commenced with all diligence i.e. cleaning of surface, removing all vegetable

and roots, serrations and then filling in required depth with watering compaction complete with all

specification from head to tail of the canal. Earth work in cutting of main canal has to be done up to

designed profile with disposal of excavated material 10 m away from outer toe of the canal. Special care

shall be taken to leave proper gaps for natural drainage.

Structural works:

Contract includes construction of Pucca structure with RCC, PCC and Masonry in Slope protection works as shown in drawing, specification and bill of quantities. Monsoon Period:

Monsoon period is from 15 June to 15 Oct. contractor has to plan his entire E/W before Monsoon period. Canal Closure and Non-closure period:

Canal Non-closure period is generally November to March and remaining period is closure period. Work during Monsoon Period:

Where ever there is a long dry spell of Monsoon period contractor can resume the pucca work left in complete provided sufficient collection of material has been done by him in dry season.

The work during non-closure period:

Contractor can plan his work during non-closure period which is not affected by the Running of canal.

Detailed Construction Program:

The bidder / contractor shall furnish his construction program for non-monsoon and monsoon periods separately on the basis of actual assessment of quantities duly backed with complete equipment

70

mobilization and deployment thereof on works along with broad calculations to justify his capacity to achieve completion of works. Submission of the above construction program is mandatory. The construction program along with material management / procurement program shall be given in complete detail showing name of his technical person in-charge having degree or diploma in Civil Engineering for each components of work and other responsible personnel’s involved thereon. The list of proposed equipment for each system with labour component (skilled/semi-skilled/un-skilled) shall be given in detail. The justification/calculation will have to be given for executing the works as per the construction program, separately for each work.

Methodology of Work:

The works under the contract comprises of “BALANCE WORK OF RESTRUCTURING &

MODERNISATION OF D2 & D3 L B C OF SAMRAT ASHOK SAGAR PROJECT VIDISHA

(Phase II)”

The rehabilitation of canal includes re-sectioning to bring them to design profile, lining in initial reach

and near structures, repair of old structures and construction of new structures.

(1) The contractor has to plan the whole work in such a way so as to achieve maximum efficiency and progress as the major work has to be carried out in Non-Monsoon period. During first season contractor has to plan entire E/W on main canal so that in second season lining work can be completed. Pucca work has to be carried out from the very beginning so as to complete along with E/W. Before commencement of E/W pre-commencement levels @ 15 M. interval shall be taken by the contractor in presence of departmental officer such as Assistant Engineer/Sub Engineer. The authorized representative of the contractor shall have to accord acceptance of levels taken on M.B. level book before start of E/W. The initial levels shall be duly checked by the officer or representative of the department. Final cross sections shall be taken at the same location after completion of the work. All measures to facilitate recording of cross-sections, pre-commencement measurement of work on Dam and structures in canal and setting out of works, arrangement for necessary equipment and labour etc. shall be done by the contractor at his own cost. Levels recorded on M.B. or level book shall be used for preparation of cross-sections. Reference pillar for B.M. and setting out of works shall be constructed by the contractor before commencement of actual work.

(3) Selected earth for filling shall be arranged by the contractor at his own cost. He will submit

samples from the proposed borrow area for testing before actual work.

(4) In case of cutting of canals to bring them to design profile the disposal of E/W shall be done

away from canal toe leaving gaps for natural drainage and shall be dressed in desired shape.

(5) Canal section where E/W has been done shall be got tested for compaction and arrangement has

to be made by the contractor for testing before commencement of lining work. All ingredients of

lining shall be got tested at contractors cost before actual use. All lining work shall be carried

out as per specifications and drawings.

(6) Location of pitching on dam and canal where old pitching has to be dismantled and fresh

pitching is to be laid shall be decided jointly by the representative of the department and the

contractor. As mutually agreed, common drawings indicating locations shall be prepared duly

signed by both the parties before commencement of work.

71

(7) The earth work and all pucca works in the canal system shall be completed in the stipulated

period in entire length as detailed in description of works / scope of works.

(8) O.K. card system shall be introduced by the department and the contractor shall strictly follow

and implement this system.

(9) The works executed by the contractor shall be subjected to departmental checks and third party

checks by independent technical examination / quality control agency. Compliance against such

observations, made by the checking agency, will have to be ensured by the contractor within the

time specified by checking agency. The views of beneficiaries of the area shall also be

considered during execution of work.

(10) Before carrying out any repairs, the structure should be thoroughly cleaned by air / water – jet to

remove any deleterious material so that the surface becomes free of any loose material, as per

specifications / instructions for repair work and directions of Engineer-in-charge.

(11) Due care shall be taken by contractor to ensure conservation of nearby water bodies and

environmental and social safe guards.

(12) Suggestions of WUA/stake holders and social/environmental safeguards shall be incorporated in

the construction activities to the extent possible.

--0--

72

SECTION V: SPECIFICATIONS

73

SECTION 5: SPECIFICATIONS

Table of Chapter

S.

No.

Chapter Pages

From To

1 CHAPTER- I : RESTRUCTURING AND MODERNIZATION OF

CANAL SYSTEM

2 CHAPTER- II : PLAIN AND REINFORCED CONCRETE

SPECIFICATION FOR CONCRETE MIX INGREDIENTS

3 CHAPTER- III : CANAL LINING

4 CHAPTER – IV: REPAIRS OF CANAL STRUCTURES

5 CHAPTER- V: REPAIR / REPLACEMENT OF MECHANICAL

FIXTURES

6 CHAPTER – VI: FORM WORK

7 CHAPTER – VII: STEEL REINFORCEMENT

8 CHAPTER – XI : DISMANTLING

74

Chapter I

RESTRUCTURING AND MODERNIZATION OF CANAL SYSTEM

Earthwork, Excavation, Re-Sectioning, Strengthening & Raising of Canal sections,

Embankments.

1. The earth work shall include constructing and maintaining haul roads, furnishing all required

tools, plants and equipments, labour & material stripping of borrow areas, excavating the material from

the borrow areas, or canal excavation , conveying the same to place of work and placing it in specified

layers for embankments including moistening and compacting mechanically to specified density &

moisture content for each type of material and performing all operations necessary and ancillary there-

to.

2. Haul Roads

Temporary paths/roads leading to and from respective borrow areas including any nalla/stream

crossings to the site of canal where the materials / soil are required to the deposited shall be constructed

and maintained by the contractor at his own cost.

3. Borrow Areas

i) Suitable excavated material available from canal cutting, foundation excavation of structure and

any other associated excavations within economic leads approved by the engineer-in-charge may be

used for strengthening of canal sections/embankment. However, where suitable material from such

features is not of adequate quantity, additional soil required shall be procured from the borrow pits. The

location of borrow pits will depend upon the type of material that is being sought and accordingly, it

will be necessary to conduct “Soil survey" to determine the suitability of soil to be brought for the

strengthening of canal sections and raising of the embankments.

ii) Before any borrow area is opened to obtain the material from the borrow area to be used, it shall

be got approved from the Engineer-in-Charge.

iii) All areas required for borrowing earth shall be cleaned off all vegetation, trees, stumps, roots,

bushes, and other objectionable material. Particular care shall be taken to exclude all organic matter

which be disposed off as directed by Engineer-in-Charge. The cleaned area shall be maintained free of

vegetative growth during the progress of work.

iv) Borrow area shall be stripped of top soil, sod and any other matter which is unsuitable for the

purpose for which the borrow pits are to be excavated. Materials from the stripping shall be disposed off

in the exhausted borrow areas, or in the approved adjacent areas, as directed.

v) No borrow pits shall be dug within 3 m of the toe of canal embankment or such distance as is

determined by the Engineer-in-Charge. Their depth is normally restricted to 0.5m. The top layers of

earth having grass, roots and vegetable matter of any kind shall be stripped to a suitable depth to the

satisfaction of Engineers-in-Charge.

vi) Borrow area watering, if needed, based on laboratory tests shall be done. The placement moisture

content for proper compaction of earthwork shall be as near as practicable to the optimum moisture

content (OMC) as obtained from the laboratory tests. Where ever practicable and especially during dry

season, periodical watering of the borrow pits, shall be done, as approved by the Engineer-in-Charge.

75

4. Preparation of surface for strengthening canal sections/embankment.

Prior to any earth fill placement, the surface to be occupied shall be cleared off all roots and

vegetative matter of any kind and stripped to a suitable depth as directed by the Engineer-in-Charge.

Normally, the depth of stripping shall vary from 7.5 cm to 20.00 cm. The depth to which top soil is

stripped shall be adequate to removal all perishable material and any soil which may become unstable

on saturation or may interface with development of proper bond between the existing surface and new

embankments.

Benching of Existing Earthwork.

Wherever earth fill placement is to be done against the existing inner slope of canal sections for

strengthening of the embankments, suitable benching of slopes shall be done with a little slope towards

the inside in benches so as to give a good grip / bond to the embankment soil with the sub grade. The

benches shall normally be 0.30 m x 0.60 m on the front and rear slopes of the embankments. These can

be appropriately varied, whenever so warranted, in consultation with the Engineer- in - Charge. Before

benching, canal slopes shall be cleared off all vegetation, roots and rubbish etc. Pre-wetting of areas

cleaned and benched shall be done prior to commencement of earth fill placement for construction of

embankment.

5. Earth fill placement and compaction

The fill material shall be deposited in horizontal layers. The thickness of each horizontal layer

before compaction shall normally be about 22.5 cm to 25.00 cm or as determined by the Engineer-in-

Charge depending up on the type of compaction equipment. It may be possible to place thicker layers if

heavy duty vibratory power rollers are deployed for compaction. The initial moisture content should be

maintained to almost OMC (optimum moisture content). Water may be added through fine spray

nozzles, whenever so warranted, in order to achieve OMC. The placing operation shall be such that the

soil layers when compacted will be blended sufficiently to secure the highest practicable density and

best impermeability and stability. Clouds and stones of size more than 7.5 cm shall be removed from

the layer prior to compaction. If the surface of any compacted layer or earth fill is too dry or too smooth

to bond properly with the layer to be placed there-on, it shall be moistened and/or scarified in an

approved manner to provide a satisfactory bonding surface before the next/succeeding layers is placed.

6. Compaction of Cohesive soil (Soil with clay & slit)

Prior to any compaction, the earth fill layers shall have optimum moisture content as required in

clause 6.6.4 of Indian Standard IS 4701-1982. This moisture content shall be fairly uniform throughout

the layer. Optimum moisture content (OMC) is the moisture content that corresponds to the laboratory

maximum dry density determined in accordance with IS 2720 (Part VII) 1973. In so far as practicable,

the moistening of the material shall be performed at the site of excavation (borrow pits) but such

moistening shall be supplemented, as required, by sprinkling water (Through fine water spray nozzle) at

the site for compaction if necessary, If the moisture content is greater than OMC, the compaction

operations shall be delayed until time the earth fill layer has dried to OMC.

The moisture content of soils shall be determined in accordance with IS 2720 (Part III) 1982.

Compaction shall preferably, be done by 8-10 T vibratory power rollers, non vibratory 8 - 10 Tonne

76

power rollers or sheep foot rollers or other appropriate compaction equipment can also be deployed for

compaction, as directed by the Engineer-in-Charge. Manual compaction shall not be allowed.

Density tests shall be taken after compaction of each layer. The dry bulk density of the compacted

layer shall be not less than 98% of the maximum dry bulk density at optimum moisture content (via

98% of proctor density). The dry density of soils in fill shall be determined in accordance with IS 2720

(Part XXVIII) 1974 by the sand replacement method or by IS (Part XXIX) 1975 by the core cutter

method.

The contractor has to ensure compaction to the specified density to the satisfaction of Engineer-in-

Charge/his authorized representative. Permission for placement of next layer shall be given only after

the earlier layer has been compacted to the specified density.

The Engineer-in-Charge or his authorized representative may deploy "Portable electronic/Nuclear

gauge density Testers" for rapid on site determination of compaction parameters (Moisture content, in

place density and compaction efficiency in terms of % age of proctor density) to ensure requisite

implementation of specification by the contactor.

7. Compaction of Cohesion less materials

Where compaction of sandy soil is involved, the soil shall be spread in horizontal layers of

thickness not exceeding 25 cm, saturating the same, and deploying 8-10 vibratory power rollers for

compaction.

As envisaged in clause 6.6.3.1 of IS 4701-1982, the "Relative Density" of the compaction layer shall

preferably 70% but not less than 65% when tested in accordance with IS 2720 (Part-XIV) 1983. (Indian

Code of practice for determination of density index (relative density) of cohesion less soils.)

8. Rollers and other compaction Equipment IS 4701-1982

Appendix C is referred which shows the earth fill compaction equipment for compacting various

types of soils.

9. Important points for rehabilitation canal Embankments.

For rehabilitation existing/old canal embankment, the following points shall be taken care of to ensure

proper bonding of the freshly laid earth fill with the old embankment.

i) All trees, bushes, roots and other vegetation growth from the existing embankment shall be fully

removed.

ii) The base of the extension portion of embankment shall be stripped dully removing all

vegetative growth & rubbish material.

iii) The slope of existing embankment shall be suitably benched for proper bonding of the

freshly laid earth fill (in layers duly compacted) with the existing/old embankment.

iv) Clods/stones of size more than 7.5 cm in layers shall be broken/removed.

v) Under no circumstances, the embankment is to be widened by dumping the earth fill from the top

of existing embankment. Embankment strengthening is to commerce from the top through placement of

earth fill in layers and compacting each layer.

vi) Adequate moistening/watering shall be done at the junction of freshly laid soil with the old

embankment for effective bonding.

vii) Compaction shall be done through deployment of 8010 Vibratory power rollers. Power rollers

of different roller widths are now readily available in the market. Compaction of each layer shall be

77

done to 98% proctor Density before allowing the placement of next layer. This in-place density relates

to the compaction of cohesive soils.

11. Treatment of Expansive (Swelling) Black cotton soils.

i) Treatment of sub grade in swelling black cotton soil must be done prior to placement of lining.

The requisite treatment shall conform to the Indian Standard, IS 9451:1994 which requires introduction

of a "Cohesive Non Swelling (NS) soil layers of suitable thickness between the expansive soil mass and

the underside of lining to counter-act the swelling pressure.

The CNS material shall be laid in suitable layers (22.5 cm to 25.0) and compacted to 98% Proctor

Density through deployment of 8-10 vibratory Power Rollers or other appropriate compacting

equipment approved by the Engineer-in-charge.

In order that proper compaction by the power roller can be done up to the edges of the designed section,

the section shall be appropriately widened by depositing (in layer) extra soil for this purpose at the

section. The whole section shall than be compacted and there-after trimmed/dressed and brought to the

required section/slopes. Necessary extra quantity required to be handled for this purpose shall not be

paid for and is considered to be included in the rate of the item.

iv) CNS soils should in the following broad range as per IS 9491: 1994.

Property/ Size Percent

Clay (less than 2 microns) 15 to 20

Silt (0.06mm-0.002mm) 30 to 40

Sand (2 mm - 0.06mm) 30 to 40

Gravel (Greater than 2 mm) 0-10

Liquid limit Greater than 30, but less than 50

Plasticity index Greater than 15 but less than 30

If given CNS material is not available, designed mix to produce blended, CNS may be used. The

artificial CNS should satisfy all the requirements of CNS. If stabilized material is to be used, special

mix design needs to be evolved.

CNS material should be non-swelling with a maximum swelling pressure of 10 KN/Sq m when tested in

accordance with IS 2720 (Part 42): 1977 at optimum moisture content and minimum cohesion

(unconfined compression strength on saturated compacted soil, remolded at OMC and compacted to

standard proctor density) should be 10KN/Sqm when tested according to IS 2720 (Part 10): 1991.

Annex. I

Tests and their Frequencies for Embankment Construction

S.

No.

Test Frequency of test Purpose Test Designation

1. Grain size analysis

for classification

One test per day or

periodically as directed

by Engineer

To know the clarification

of soil actually put in

embankment

IS : 2720-IV-1995.

78

2. Atterberg test limit One test per day To know the clarification


embankment

IS : 2720-V-1970

3. Specific gravity One test per day To know the clarification


embankment

IS :2720-III-1964

4. Field density and

moisture content

One test in 300 m3 of

earth work or in each

layer laid on

embankment

To determine MDD and

OMC of the soil and

conference the result with

laboratory value.

IS : 2720-XXVIII-1974

IS : 2720-XXIX-1996

IS : 2720-XXXIII-1971

5. Moisture content One test on each

sample

To know the moisture

content in the sample

IS : 2720-XVII-1996

6. Relative density

test

One test in 300 m3 of

earth work placement

To know the RD of

Cohesion less soil

IS : 2720-VII-1970

Note:- The expenditure towards all the above test will be borne by the contractor. The rate quoted by the contractor shall be

inclusive of this expenditure and no refund on any ground of such expenditure will be admissible.

79

Chapter II

Plain and Reinforced Concrete

Specification for Concrete mix ingredients

A. Cement

1.0 Cement as per IS code: 456 shall be used on work ,subject to the approval of the Engineer-in-

Charge.

2.0 Cement Procurement and Storage.

i) The contractor shall make his own arrangements to procure cement of specified/required

specifications for the works from reputed cement factories to the satisfaction of the Engineer-in-Charge.

He shall make his safer arrangements for adequate storage and transportation of cement.

ii) The contractor shall produce the proof of purchase of cement from the Cement

Factory/Authorized Agents. The purchase bill supported by delivery challan and excise gate pass shall

constitute adequate proof of purchase. The cement shall be stored in such a way as to allow the removal

and use of cement in chronological order of receipt i.e. first received being first used.

iii) If go down facilities are available with the government the same may be utilized by the

contractor as per the terms and conditions laid down by the Government. The contractor will have to

produce the test certificate for the quality of the cement procured by him. If department desires it can

independently test the cement sample. The cement sample will be provided free of cost by the

contractor as and when desired for testing.

iv) The contractor shall provide satisfactory storage at site of work for adequate quantity and shall

keep the cement stored in a manner that will satisfy the Engineer-in-Charge. The cement arrangement

of storage and utilization shall be such as to assure the utilization of cement in the order of it arrival at

the storage and the contractor shall maintain satisfactory records which would at all times show the

dates of receipt and proposed utilization of cement laying in the stores at site.

v) The Engineer-in-Charge or his representative shall at all times have excess to the storage and the

sites of the contractor and shall have authority to check and examine the method of storage, records,

accounting and security provided by the contractor. The contractor shall comply with instructions that

may be given by the Engineer-in-Charge.

vi) The contractor shall not be allowed to use the damaged cement on the work.

vii) He shall produce the test certificates issued by the manufactures. He shall make his own

arrangements for transportation and adequate storage of cement.

viii) The contractor shall create a suitable and adequate infrastructure for handling, storing and

conveying bulk of bagged cement procured by him with advance planning of work to be done during the

next two weeks to four weeks, duly approved by the Engineer-in-Charge. Bagged cement shall be

stored above the ground level in perfectly dry and leak proof sheds and shall be stacked not more than

eight bags high. Cement more than 3months old shall invariable be tested to ascertain its suitability for

use in terms of acceptability requirements.

3.0 Delivery of Cement.

The cement shall be packed in Polythene bags bearing manufacturer name or his registered trade

mark. The words 33grade or 43 grade or 53 grade as the case may be (or the trade mark of the other

80

type of cement, such as Cement as per IS code 456).Bags shall be in good condition at the time of

inspection.

4.0 Sampling (IS: 3535-1986)

The samples shall be taken after the delivery of cement and the tests as considered necessary by

the Engineer, shall be done.

5.0 Physical requirement

5.1 Fineness

When tested for fineness by “Blains” air permeability analysis method (IS:4031,Part-2-1988) the

specific surface of cement shall not be less than 2250 cm2/g(225m2/kg). For determination of fineness

the fineness, by dry sieving (as per IS: 4031-Part-I 1988), the residue should not exceed 10%.

5.2 Soundness

When tested by ’Le-chateleir’ method (IS: 4301,Part 3-1988) and autoclave method (for cement having

a moisture content more than 3%), the cement shall not have an expansion of more than 10mm and 0.8

percent respectively.

5.3 Consistency

Normal consistency is about 30%

5.4 Setting Time.

When tested by Vicat apparatus method (IS: 4031, Part-5-1988) the setting time of cement shall confirm

to the following requirements.

a) Initial setting time- Not less than 30 minutes.

b) Final setting time- Not more than 600 minutes.

The ratio of final penetration measured after 5 minutes of completion of mixing period to the initial

penetration measured exactly after 20 seconds of completion of mixing period shall be not less than 50

percent.

5.5 Compressive Strength.

The average compressive strength of 43 grade OPC cement tested as per IS:403 Part-6 1988 shall be as

follows:

a) 71+ 1 hour - Not less than 230 kg/cm2 (23mpa)

b) 168+ 2 hours - Not less than 330 kg/cm2

c) 672+ 4 hours(28days)- Not less than 430 kg/cm2 (43mpa)

Cement shall show a continuous increase in strength from the strength at 72hr.

6.0 Chemical requirement.

6.1 When tested in accordance with the method given in IS:4032-1985 the ordinary Portland

cement shall comply with the chemical requirement as given below:

i. Total loss on ignition - Not more than 5 percent

ii. Total sulphate content - Not more than 2.5 percent

iii. Magnesia (by mass) - Not more than 6 percent

iv. Insolute residue (by mass) - Not more than 5 percent

v. Ratio of percentage of alumina

to that from oxide - Not more than 0.66 percent

81

vi. Ration of percentage of lime - Between 0.66 and 1.02

to silice, alumnia or iron oxi

6.2 Tests

The sample of cement to be used in works shall be tested for fineness, soundness, consistency, setting

time, and compressive strength in order to exercise proper control on quality in the manner as per

following Indian Standards:

Test IS specifications

* Fineness by dry sieving 4031 (Part-I) -1998

* Fineness, Blain air permeability 4031 (Part-II)-1998

method

* Soundness by: Le-Chatelier method

* Consistency 4031 (Part-IV)1998

* Setting time 4031 (Part-V)1998

* Compressive strength 4031 (Part-VI)1998

The temperature for testing shall be 27+2o C as far as possible.

7.0 Rejection

Cement may be rejected if it does not comply with the Indian Standard requirements.

Cement in bags stored for more than 3months shall be retested before use and may be rejected and shall

not be used on works if it fail to confirm to any of the requirement.

8.0 Tolerance

Average net mass of cement packed in bags in a sample shall be equal to or more than 50kg. If and as

desired by the Engineer-in-Charge, the number of samples to be checked for net mass of cement per

bag, in a given number of bags shall be as given below:

100 to 150 bags : 20 sample





3201 and above : 200 sample

The bags in a sample shall be selected at random.

B- Sand (Fine Aggregate)

1.0 The sand shall be tested for grain size, specific gravity, water absorption, fineness modulus,

petrographic analysis, deleterious constituents etc. The presence of impurities, if any, is to be tested by

chemical analysis. Quick color test shall also be conducted in the field to determine the presence of any

harmful organic impurities in sand with 3% solution of sodium hydroxide (caustic soda), as under:

i. A colour less liquid indicates clean sand free from organic matter.

ii. A straw coloured liquid indicates some organic matter but not enough to be seriously

objectionable;

iii. A dark colour will mean that the sand contains injurious amount of organic impurities and shall

not be used unless it is washed and a retest then shows that it is satisfactory.

iv. Sand to be used shall be well graded with maximum size limit to 4.75mm. Well

82

v. graded sand is essential to impart good workability and good finish. The gradation requirement

of sand for concrete work is indicated below:

IS sieve

Designation

Percentage Passing for

Grading

Zone-I

Grading

Zone-II

Grading

Zone-III

Grading

Zone-IV

10mm 100 100 100 100

4.75mm 90-100 90-100 90-100 95-100

2.36mm 60-95 75-100 85-100 95-100

1.18mm 30-70 55-90 75-100 90-100

600 micron 15-34 35-39 60-79 80-100

300 micron 5-20 8-30 12-40 15-50

150 micron 0-10 0-10 0-10 0-15

Note: Sand of zone 4 shall not be used in the reinforced concrete work.

i. Fineness Modulus

Sand shall have FM between 2.2 to 3.2. The sand content shall be proportioned to be around 33 to 35%

of total aggregate. However, the actual proportioning shall be fixed on the basis of lab tests. It shall

preferably be natural sand and confirm to IS:2116-1965. It shall be got approved from the Engineer-in-

Charge before use. The Engineer-in-Charge may allow the use of crusher fines/crushed stone sand with

natural sand after his full satisfaction that the mixture meets the specified criteria.

ii. The amount of deleterious substances shall not exceed the percentage given below:

Deleterious substances Percentage more than

Shale 1.00

Coal and ignite 1.00

Clay lumps 1.00

Cinders and clinkers 0.50

Material passing 75 Micron sieve 3.00

Alkali, mica and coated grain 2.00

The sum of the percentage of all deleterious substances shall not exceed 5% by weight. The

sand shall also be sound and free from any amounts of organic impurities.

iii. Specific Gravity.

The sand shall have a minimum specific gravity of 2.6

iv. The sum of the percentages of all deleterious substances in the sand shall not exceed 5% by

weight. The sand shall also be sound and free from organic impurities.

v. Quality.

The sans shall consist of hard, dense, durable, unquoted rock fragments and shall be free from

dust, lumps, soft or flaky particles, shale, alkali, loam, mica and other deleterious substances.

3.0 Allowance of Bulk age.

If the sand as obtained from quarry or after its washing is found to be moist, bulk age

will be measured and allowed, provided sand is stacked at the site at least for 48 hours before use. Bulk

83

age of such a stack will be measured regularly as directed by the Engineer-in-Charge and allowed

according to these observation allowance for bulk age will be made as per Indian Standard procedure

and allowance ill be made as under: -

Bulk age observed Allowance to be made.

Below 5% Nil

5 to 10 5%

10 to 15 10%

15 to 20 15%

Sand of bulk age 20% shall not be used.

C. Coarse Aggregate.

1.0 General.

The coarse aggregate to be used shall be hard and well graded to produce a dense concrete of

the specified strength and consistency that will work readily in to position without segregation. It shall

be tested for specific gravity, water absorption, deleterious materials, crushing, impact, and abrasion

values. Representative samples shall also be got tested for any alkali-aggregate reaction potential if

warranted by the Engineer-in-Charge. Minimum specific gravity shall be 2.6.

2.0 Size

The nominal maximum size of aggregate shall be as large as possible within the limits specified but in

no case greater than one-fourth of the minimum thickness of the member, provided at the concrete can

be placed without difficulty so as to surround all reinforcement thoroughly and fill the corners of the

form work. For most works, 20mm aggregate shall be used and where there is no restriction to the flow

of concrete into sections, 40mm size (MSA) shall be used. For any heavily reinforced concrete

members, the nominal maximum size of aggregate shall usually be restricted to 5mm less than the

minimum cover to the reinforcement or 5mm less than the minimum clear distance between the main

bars.

Coarse aggregate shall of all aggregate particles of size greater than 4.75mm. The aggregate shall

conform to IS: 383- 1970 clause 3.1,3.2 and 3.2.1 (Table-I) The nominal maximum size of coarse

aggregate to be used shall be as per drawing/as determined by Engineer-in-charge.

2.1 Tests

The different test and the zone of acceptability limits and given below:

Name of test IS code Acceptance criteria.

Sieve analysis IS: 2386-Par-I 1963 As per concrete design

Deleterious materials IS: 2386-Par-II 1963 Less than 5%

Specific gravity IS:2386 Part-III 1963 2.5 to 3.00

Absorption value IS:2386-Part-III 1963 Less than 5% by weight

Aggregate crushing

value.

IS:2386-Part-IV 1963 For wearing surface, less

30%- for concrete other

than 45%

Impact value IS:2386-Part-IV 1963 As above.

84

Abrasion value IS:2386-Part-IV 1963 For wearing surface, less

30%- for concrete other

than 50%

Soundness(Sodium

Sulphate method)

IS:2386-Part-V 1963 Less than 12%

Pictographic

examination

IS:2386-Part-VIII 1963 Deleterious constituence +

Silt shall not exceed 5%

Note: - The expenditure towards all the above tests will be borne by the contractor. The rates quoted by the contractors

shall be inclusive of this expenditure and no refund on any ground of such expenditure will be admissible.

3.0 Grading.

The coarse aggregate as delivered to the mixer, shall be well graded as per IS specifications. Maximum

size of aggregate used for the work shall be 20mm or 40mm or as specified in items in the bill of

quantities and it shall confirm to IS: 383-1970, clause 4.2 (Table-2) However, the exact gradation

required to produce a dense concrete of specified strength and desired workability shall be decided as

per laboratory test by the Engineer.

Coarse aggregate for use in concrete shall be well graded and shall conform to IS: 383-1970

requirements (as per Table-II) given below:

IS sieve

Designation

Percentage Passing by weight for graded aggregate of nominal

size.

40mm 20mm 16mm 12.5mm

63mm 100 - - -

40mm 95-100 100 - -

20mm 30-70 95-100 100 -

16mm - - 90-100 100

12.5 - - - 90-100

10.00 10-35 25-55 30-70 40-85

4.75mm 0-5 0-10 0-10 0-10

4.0 Impurities.

The broken stone shall be free from dust and dirt and shall be washed as necessary to ensure that all

faces of the stones are perfectly clean. The minimum individual percentages by weight of deleterious

substance in any size of coarse aggregate shall not exceed the following values:

Materials passing through No.100 screen (ASTM) 1%

Shale 1%

Coal 1%

Soft fragments 1%

Clay lumps 1%

Other deleterious substances 1%

The sum of the percentage by weight of all deleterious substances in any size shall not exceed 5%.

4.0 Storage.

85

Aggregate shall be stacked in such a way as to prevent the intrusion of any foreign materials such as

soil, rubbish, vegetation etc. Heaps of fine and coarse aggregate shall be kept separate. When different

sizes of fine and coarse aggregates are procured separately, they shall be stored in separate stock-piles,

so that they do not get intermixed.

The aggregate shall be stock piled near to the mixer site/B&M plant so as to require minimum re-

handling when conveyed to the mixer.

The aggregate shall be placed on a dry hard patch of ground if available, otherwise a platform or plain

galvanized iron sheets or alter natively a floor of dry bricks shall be prepared, or a floor of thin layer of

lean concrete.

To minimize moisture variations the stock piles shall be as large in area as possible but left low and

fairly uniform in height preferably 1.25 to 1.5 m and the lowest layer of about 30cm height shall be

allowed to act as drainage layer and not be used till the end.

D. Water:-

1.0 The water used in concrete shall be clean and free from objectionable quantities of silt, salts,

organic matter, alkali and other impurities. Normally potable water is considered satisfactory for

mixing concrete. As a guide, the following concentrations represent the maximum permissible values.

a) The neutralize 100 ml sample of water, using phenolphthalein as an indicator, it should not require

more than 5ml of 0.20 normal NaOH. The details of test are given in 8.1 of IS:3025 (Part-22).

b) To neutralize 100 ml sample of water, using mixed indicator, it should not require more than 25ml

of 0.02 normal H2SO4. The details of test shall be as given in 8 of IS:3025 (Part-23).

c) Permissible limits for solids shall be given in the following table.

Percentage of solids should not exceed the following.

Test as per

Organic - 200mg/liter IS: 3025(Part-18)

Inorganic - 3000mg/liter IS: 3025(Part-18)

Sulphates - 400mg/liter IS: 3025(Part-24)

Chloride (as CI) - 2000 mg/litter

for concrete not containing embedded steel and

for reinforced concrete work. 500mg /litre IS: 3025(Part-32)

Suspended matter - 2000mg/liter IS: 3025(Part-17)

2.0 PH value of water shall not be less than 6.0 and be within the range of 6.0 to 9.0

3.0 Water found satisfactory for mixing concrete is also suitable for curing the concrete. However,

water used for curing should not produce any objectionable stain or unsightly deposit on the concrete

surface.

86

Plain and Reinforced Concrete:-

General.

Plain and reinforced concrete work shall be carried out generally in conformity with the latest

Indian Standard IS 456-2000.

1.0 Scope of work.

The work covered by this shall consists of –

i. Furnishing all materials, equipment and labour for the manufacture, transport, placing,

compaction and curing of concrete and performing all the functions necessary and ancillary thereto,

including finishing the concrete to the require shape as per drawing.

ii. Providing and removal of all form work, furnishing all materials, equipment and labour for the

manufacture, transport, erection, keeping in placing with necessary fixture and supports, oiling

complete.

iii. All concrete involved in the RCC work also stands including in this item.

2.0 Design Mix concrete.

Design Mix concrete (Controlled concrete) shall be used for concrete of grade M-10 and higher. In

proportioning concrete, the quantity of both cement and aggregate shall be determined by mass. Water

shall be weighed or calibrated by volume concrete shall be manufactured in mechanical mixers either in

batching mixing plants or mechanical mixers of various capacities (14/10 or 10/7), when the quantity of

concrete is small and allowed by the Engineer-in-Charge. Self-loading, weigh batching, mixing and

transporting mixers of suitable drum capacity, can also be used, both for mixing and transporting

concrete to supplement the batching and mixing plant. The mix

proportions shall be such as to ensure the workability of the fresh concrete and when concrete is

hardened, it shall have the required strength, durability, and surface finish.

The mix shall be designed to produce the grade of concrete having the required workability and

characteristic strength not less than appropriate values given below:

Grade Designation of Concrete. Specified characteristic compressive

strength of 150mm cube at 28 days in

N/mm2

M-10 10

M-15 15

M-20 20

M-25 25

The concrete mix shall be designed for the target mean strength. The target mean strength of concrete

mix should be equal to characteristic strength plus 1.65 times the standard deviation.

Target Mean Strength = Characteristic strength (28 days compressive strength)+1.65x Standard

deviation.

Where sufficient tests results for a particular grade of concrete are not available, the value of standard

deviation given below shall be assumed for design mix of concrete in the first instance. As soon as the

87

results of samples are available, actual standard deviation shall be used and the mix designed

accordingly. (The total number of test strength of samples required to constitute an acceptable record for

calculation of standard deviation shall be not less than 30)

Assumed standard deviation (as per IS: 456-2000)

Grade of Concrete Assumed standard

deviation

M-10 3.5

M-15 3.5

M-20 4.0

M-25 4.0

3.0 Ingredients.

All ingredients namely, cement, sand, coarse aggregate and water shall comply with the specifications

already listed.

4.0 Water cement ratio (W/C)

Water cement ratio is one of the key elements for a durable and sound concrete of adequate strength.

Accordingly, water cement ratio shall be maintained at correct value. The water contents in both fine

and coarse aggregates shall be determined regularly. The amount of added water shall

be adjusted to compensate for any observed variation in moisture content. The amount of surface water

may be estimated from the following table in the absence of exact data:

Surface water carried by aggregate

S.No. Aggregate

Approx. quantity of surface water

% by mass Litre/M3

1 Very wet sand 7.5 120

2 Moderately wet sand 5.0 80

3 Moist sand 2.5 40

4 Moist sand/crushed

rock

1.25 to 2.5 20 to 40

5.0 Durability of Concrete.

It is essential that the concrete be durable viz. It should perform satisfactorily in the working

environment during its anticipated exposure conditions during service. The materials and mix

proportions are to be such as to maintain its integrity, and (where ever applicable), to protect embedded

metal/ reinforcement from corrosion.

The different environmental exposure conditions are given below:

Environmental exposure conditions (as per Table 3 of IS 456-:2000)

No. Environment Exposure Conditions

1. Mild Concrete surfaces protected against weather or aggressive

conditions, except those situated in coastal area.

88

2. Moderate - Concrete surfaces sheltered from severe rain of freezing whilst

wet.

-Concrete exposed to condensation and rain.

-Concrete continuously under water.

-Concrete in contact or buried under non-aggressive soil/ground

water.

-Concrete surfaces sheltered from saturated salt air in coastal

area.

3 Severe -Concrete surfaces exposed to severe rain alternate wetting and

drying, or occasional freezing whilst wet or severe condensation.

- Concrete completely immersed in seawater.

- Concrete exposed to coastal environment.

4 Very severe - Concrete surfaces exposed to seawater spray, corrosive fumes

or severe freezing conditions whilst wet.

- Concrete in contact with or buried under aggressive

subsoil/ground water.

5 Extreme -Surface of members in tidal zone.

-Members in direct contact with liquid/solid aggressive

chemicals.

The minimum cement content and maximum water cement ratio to be adopted for different

exposure conditions for coarse aggregate of 20mm MSA are outlined below, as per Indian Standard IS:

456-2000. Accordingly, the design mix shall be duly checked from consideration of durability of

concrete.

S.N

o

Exposure

Condition

Plain cement concrete Reinforced cement concrete

Minimum

cement

content

Kg/m3

Max.

free w/c

ratio

Min.

Grade of

concrete

Minimum

cement

content

Kg/m3

Max.

free w/c

ratio

Min.

Grade of

concrete

1 Mild 220 0.60 ------- 300 0.55 M20

2 Moderate 240 0.60 M15 300 0.50 M25

3 Severe 250 0.50 M20 320 0.45 M30

4 Very Severe 260 0.45 M20 340 0.45 M35

5 Extreme 280 0.40 M25 360 0.40 M40

The cement contents given above are irrespective of the grades of cement used. The above

cement contents are for the coarse aggregate of maximum nominal size of 20mm Adjustments to these

minimum cement contents for aggregates other than 20mm MSA aggregates shall be as per following

table:

S.No. Nominal maximum size

aggregate mm.

Adjustments to minimum cement

contents kg/m3

89

1 10 +40

2 20 0

3 40 -30

The severity level in MPWSRP works may be assumed Mild, except in such environment which

is associated with corrosive fumes or where the concrete work is exposed to coastal environment or

buried under aggressive sub soil/ground water however, Severity level shall be assessed by the

Engineer-in-Charge.

6.0 Workability of concrete.

The concrete mix proportions chosen shall be such that the concrete is of adequate workability

for the placing conditions of the concrete and can be properly compacted. Following ranges of

workability and slump of concrete, measured in accordance with IS: 1199, shall be broadly adopted:

Placing conditions Degree of workability Slump (mm)

* Mass concrete

* Lightly reinforced section in

slabs, beams, walls, and

columns.

* Floor

*Footings

Low 25-75

*Heavily reinforced sections in

slabs, beams, walls, and

columns.

Medium 50-100

For canal lining, slumps range 50-65 mm is considered adequate. It can be increased unto

75mm, if considered necessary in particular situations for practical usage.

7.0 Admixture

Admixture such as air-entraining agents (AEA), plasticizers etc. shall only be added after the

approval of the Engineer-in-Charge. The cost of the admixture, mixing with concrete and placing the

admixed finished concrete shall be done by the contractor without any extra cost and shall stand

covered in the unit rate of concrete.

AEA shall be used in the concrete mix for the in-situ cc lining.

8.0 Mixing.

Concrete ingredients shall be mixed thoroughly in the mechanical mixer and the mixing shall be

continued until there is a uniform distribution of the ingredients and the mass is uniform in colour and

consistency. Minimum mixing time shall be 2 minutes or as determined by the Engineer. The accuracy

of the measuring equipment shall be within +2 percent of the quantity of cement being measured and

within +3 percent of the quantity of aggregate and water being measured.

90

9.0 Transporting and Placing.

9.1 Transporting and Handling.

After mixing, concrete shall be transported to the formwork as rapidly as possible by methods, which

will prevent the segregating, or loss of any of the ingredients or ingress of foreign matter or water and

maintaining the required workability.

9.2 During hot or cold weather, concrete shall be transported in deep containers. Other suitable

methods to reduce the loss of water by evaporation in hot weather and heat loss in cold weather may

also be adopted as per instructions of Engineer-in-Charge.

10.0 Placing.

The concrete shall be deposited as nearly as practicable in its final position to avoid re handling.

The concrete shall be placed and compacted before initial setting of concrete commences

and should not be subsequently disturbed. Methods of placing shall be such as to preclude segregation.

Care shall be taken to avoid displacement of reinforcement or movement of formwork. The maximum

permissible free fall of concrete shall not be more than 1.5m.

11.0 Compaction.

11.1 Concrete shall be thoroughly compacted and fully worked around the reinforcement, around

embedded fixtures and into corners of the formwork.

11.2 Concrete shall be compacted using mechanical vibrators complying with IS 2505, IS 2506, IS

2514 and IS:4656. Over vibration and under vibration of concrete are harm full and shall be avoided.

Vibration of very wet mixes shall also be avoided.

Whenever vibration has to be applied externally, the design of formwork and the disposition of

vibrators shall receive special consideration to ensure efficient compaction and to avoid surface

blemishes.

12.0 Construction joints and cold joints.

Joints are a common source of weakness and, therefore, it is desirable to avoid them. If this is

not possible, their number shall be minimized. Concreting shall be carried out continuously up to

construction joints, the position and arrangement of which shall be indicated on the drawings/or as

directed by the Engineer-in-Charge.

Construction joints shall be placed at accessible locations to permit cleaning out of laitance,

cement slurry and unsound concrete in order to create rough/uneven surface. It is essential to clean out

laitance and cement slurry by using wire brush on the surface of joint immediately after initial setting of

concrete and to clean out the same immediately thereafter. The prepared surface shall be in a clean

saturated surface dry condition when fresh concrete is placed against it.

In the case of construction joints at locations where the previous pour has been cast against

shuttering the correct method of obtaining of rough surface for the previously poured concrete to be

adopted is to expose the aggregate with a high pressure water jet or any other appropriate means such as

sand blasting/chipping.

91

Fresh concrete shall be thoroughly vibrated near construction joints so that mortar from the new

concrete flows between large aggregates and develop proper bond with old concrete.

13.0 CURING.

13.1 Effective curing shall be needed to prevent the loss of moisture from the concrete whilst

maintaining a satisfactory temperature regime. The curing regime is to prevent the development of high

temperature gradients within the concrete.

13.2 MOIST CURING.

Exposed surfaces of concrete shall be kept continuously in a damp or wet condition by pounding or by

covering with a layer of sacking, canvas, Hessian or similarly materials and kept constantly wet for at

least 21 days from the date of placing concrete.

13.3 MEMBRANE CURING:

Approved curing compounds shall be used in lieu of moist curing for achieving foolproof curing. Such

compounds shall be applied to all exposed surfaces of the concrete as soon as possible after the concrete

has set. Impermeable membranes such as polyethylene sheet covering closed to the concrete surface

may also be used to provide effective barrier against evaporation. (Refer canal lining chapter for

specifications of “Membrane-forming curing compound).

14.1 GENERAL:

Finishing of formed and unformed surface shall be performed only by skilled workmen, all exposed

concrete surfaces shall be cleaned of all incrustations of cement mortar or grout and unsightly stains

shall be removed.

14.2 FORMED SURFACES

Surfaces of concrete finished against forms shall be smooth, free from projections and filed thoroughly

with mortar. Immediately upon removal of forms all unsightly ridges of fines shall be removed and any

local bulging on exposed surfaces shall be remedied by tooling and rubbing, All holes left by the

removal of fasteners, shall after being reamed with reamer, be neatly filled with dry packing mortar. All

porous and fractured concrete and surface concrete to which additions are required to bring it to the

prescribed lines shall be sharp edged and shall be filled to required lines with fresh concrete or dry

packing mortar. Where concrete is used for filling the chipped openings, these shall not be less than

8cm in depth and the concrete filling shall be reinforced and dowelled to the surface of the opening.

Honey combed surfaces and surfaces which give a hollow sound shall be rectified by grinding at the

contractors cost, within the unit rate accepted for concrete.

14.3 DRY PACKING.

Dry packing mortar shall consist of one part of cement to 2 parts of sand by volume and just enough

water so that the mortar as used, will stick together on being molded into a ball by a slight pressure on

the hands and will not exclude water when pressed but will leave the hands damp. The mortar shall be

placed in layers of not more that 25mm thickness. After being compacted, each layer shall be roughed

by being scratched to provide an effective bond with the succeeding layers. The last or finishing layer

92

shall be smooth to form a surface continuous with the surrounding concrete. All patches shall be

bonded thoroughly to the surface of the chipped opening and shall be sound and free from shrinkage

cracks.

14.4 FINISHING PERMANENTLY EXPOSED SURFACE.

Except and otherwise specified or directed, all permanently exposed concrete surface and other water

way surface requiring durability under water (except the outlet) shall be finished in the following

manner. Immediately upon the removal of the forms, the surface shall be wetted and all surface pit and

air bubbles filled by rubbing mortar composed or cement and fine sand in

proportion (1:2) into the pits with burlap so as to secure a uniformly dense smooth face. The rubbing

shall be performed in such a manner as to leave the surface free of extra mortar not used for filling the

pits. If the filling operations be unduly delayed and the surface of the pits become coated with dirt or

other contaminating material, they shall be thoroughly cleaned and washed and shall be maintained in

moist condition until the mortar filling is placed. Such cleaning shall be done by means of air and water

jet and chipping or brushing or other satisfactory means without damaging concrete. All operations in

connection with the filling of surface pits shall be handled as quickly as practicable to minimize the

period during which the concrete and mortar filling are exposed to drying. When the treatment of

surface has been completed the surface shall be neat and of the same colour and texture as the adjoining

concrete.

14.5 FINISHING CONCEALLED SURFACE:

For exterior concealed surfaces below ground or backfill level or like surface not otherwise specified,

no finish is necessary except that sand streaks metal pockets, honey combing or other imperfections

which are of consequence affecting strength, water tightness or protection of reinforcing steel from

corrosion, shall be corrected and repaired as prescribed for formed surface.

14.6 FINISHING UNFORMED SURFACE:

Unformed surface shall be finished by one or more of the operations of screening, floating and

trowelling. Working of the surfaces should be done at proper time employing experienced men and

should be just sufficient to produce the desired finish. Screeding which gives the surface its

approximate shape by striking off surplus concrete immediately after compaction shall be accomplished

by moving a straight edge or template with a sawing motion across wood on metal strip that have been

established as guides. Where the surface is curved, a special screed should be used. Softly after the

concrete is screed the surface should be brought true to form and grade by working in sparingly with

wooden float. If a coarse textured finished is desired or if the surface is to be steel troweled, a second or

final floating should be performed after some stiffening has occurred and the surface moisture film or

shine has disappeared. Where a smooth dense finish is desired, floating shall has disappeared from the

floated surface and when the concrete has hardened sufficiently to prevent fine materials and water

from being worked out to the surface. Excessive trowelling particularly at an early time shall be

avoided.

15.0 DAMAGE DUE TO FLOODS GOVT. NOT RESPONSIBLE:

In case of damage of any of the concrete works due to Rains, floods, Govt. will not be responsible and

whatever corrective measures are required to be adopted shall be done by the contractor at his cost.

93

16.0 SAMPLING AND STRENGTH OF DESIGNED MIX CONCRETE.

(i) SAMPLING OF CONCRETE.

A random sampling procedure shall be adopted to ensure that each concrete batch shall have reasonable

change of being tested, viz. the sampling should be spread over the entire period of concreting and

cover all mixing units (concrete production units)

(ii) FREQUENCY OF SAMPLING.

The minimum frequency of sampling of concrete of each grade shall be in accordance with the

following:

Quantity of concrete in the

work m3

Number of samples.

1-5 1

6-15 2

16-30 3

31-50 4

51 and above 4 plus one additional sample for each

additional 50m3 or part there of

At least on sample shall be taken from each shift.

(iii) TEST SPECIMEN.

Three test specimens shall be made for each sample for testing at 28 days. Additional specimens may

be taken to determine the strength of concrete at 7 days. Test results of the sample shall be the average

of the strength of 3 specimens. The individual variation should not be more than + 15% of the average

strength of 3 specimens. It more, the test results of the sample are considered invalid.

(iv) ACCEPTANCE CRITERIA OF COMPRESSIVE STRENGTH

The concrete shall be deemed to comply with the strength requirement when both the following

conditions are met, as per IS: 456-2000:

(a) The man strength determined from any group of 4 non overlapping consecutive test results complies

with the appropriate limits in Colum 2 of following table.

(b)Any individual test result complies with the appropriate limits in column 3 of the following table.

Characteristic compressive strength compliance requirement

Specified

grade

Mean of group of 4 no overlapping consecutive test

results in N/mm2

Individual test

results in N/mm2

M 15 fck +0.825 X established standard deviation (rounded off to

nearest 0.5 N/mm2) Or

fck + 3 N/mm2 whichever is greater

fck - 3 N/mm2

M 20 or above fck + 0.825 X established standard deviation (rounded off to

nearest 0.5 N/mm2)Or


fck - 4 N/mm2

Note: > means greater than or equal to

94

In the absence of established value of standard deviation, the following value may be assumed in

the first instance and, thereafter, established values based on the requisite number of test results.(not

less than 30)

Grade of concrete Assumed standard deviation

M10 and M 15 3.5 N/mm2

M20 and M 25 4.0 N/mm2

fck = Characteristic compressive strength of 150 mm cube at 28 days in N/mm2. For M 15 & M 20

grades fck is 15 N/mm2 and 20 N/mm2 respectively. For M 10 concrete fck is 10N/mm2. In respect of

CC lining with a minimum cement level of 250 kg/M3. Minimum fck envisaged is 15 N/mm2. Based

on the assumed standard of deviation values of 2 N/mm2 and 3 N/mm2 for M10 and M15 respectively

their acceptance criteria of compressive strength can be envisaged as :

Specified grade Mean of the group of 4 non-

overlapping consecutive test

results in N/mm2

Individual test results

in N/mm2

M10 -fck + 0.825 X standard

deviation

- fck -2 N/mm2

M15 (CC lining with

minimum cement level of 250

kg/m3

-fck + 0.825 X standard

deviation

- fck -205 N/mm2

Note: The minimum cement level of 250 kg/m3 for plain cement concrete lining is from the durability

consideration and not on the 28 day characteristic strength basis alone.

Standard Deviation: It is calculated from the following equation:

SD = √ (x- x¯) 2

N-1

N = No. of samples (30 samples are generally considered)

X = Sum of the mean value of 3 test specimens of each sample divided by the number of samples. viz

overall average strength.

X = Difference between overall average strength and the mean strength of 3 test specimens of each

sample.

Requirement of cement to resist sulphate attack.

Table 4 on page 19 of Indian Standard IS 456: 2000 gives recommendations for the type of cement,

maximum free water-cement ratio, and minimum cement content, which are required for different

sulphate concentrations in near neutral ground water having pH of 6 to 9.

(v) TESTS AND THEIR FREQUENCY

The various tests and their frequencies for concrete work shall be carried out as per following table

95

S.N

No.

Name of test Frequency Purpose Indian standard

1 Coarse Aggregates : One test for

every 150 m3 or

less

To know the

gradation

IS 2386- Part -I 1963

Sieve analysis

Specific gravity, bulk

density, moisture content

and absorption

--do-- To assess the

suitability of

aggregate an to

utilize data for

mix design

IS 2386 - Part III 1963

Soundness )Sodium

sulphate method)

--do-- To assess the

quality of

materials

IS 2386 - Part-V 1963

Abrasion impact crushing

values

--do-- --do- Is 2386 - Part IV 1963

Organic impurities --do-- --do-- IS 2386 - Part II 1963

Petro graphic

examination

Twice in one

season

To know the

extent of

deleterious

materials & silt

content

IS 2386 Part VIII 1963

2. Fine Aggregate One test for

every 150m3 of

sand used in

concrete

To know

grain size and

fineness modulus

of sand

IS 2386 Part

IS- I 1963 Screen analysis

Unit Weight and bulk age --do-- To know the

Unit Weight and

bulk age

IS 2386- Part-III 1983

Organic impurities --do-- To assess the

quality

IS 2386 - Part - II 1963

Specific gravity moisture

content

--do-- To utilize data

for mix design

IS 2386- Part-III 1963

3. Cement One test for each

brand of cement

used during the

working season

preferably at 3

months interval

To know the

quality of cement

used in

construction

IS 4031- 1988

Fineness test

Normal consistency --do-- --do-- IS 4032-1988

Setting time --do-- --do-- IS 4032-1988

Soundness --do-- --do-- IS 4031-1988

Compressive strength --do-- --do-- IS 4031-1988

Chemical analysis --do-- --do- IS 4032-1988

4. Finished concrete : One test in each To check Is - 1199-1959

96

S.N

No.

Name of test Frequency Purpose Indian standard

Slump test shift or at

frequent

intervals to

check

workability

workability of

concrete / water

cement ratio

Compressive strength Refer sampling

& strength of

designed mix

concrete

To know the

strength of

concrete

IS 516-1959

5. Finished Lining work in

Canals

One core each

from bed & both

the slopes for

250 m reach, or

as directed by

Engineer

To know the

density of

concrete used for

lining; to know

lining thickness,

to examine by

any honey-

combine; and to

test compressive

strength of cores.

The density of concrete

shall not be less than

±2300 kg/Cum; Refer

lining chapter for

acceptance criteria;

these should be no

honey - combing.

Density of Concrete;

Thickness of lining;

Honey combing; &

compressive strength

Note: The expenditure towards making available the samples for testing as well as the expenditure on such

test taken on samples / materials will be borne by the contractors, and the rates quoted by the contractor shall

be inclusive of all such expenditure and no reimbursement on any such account will be admissible to the

contractor.

17.0 MODE OF MEASUREMENTS AND PAYMENT

Payment shall be one the net quantity of concrete after deducting quantities for openings and

other class of work. No deduction shall be made for anchor bars reinforcement grout holes and bore or

weep holes. Measurements of concrete shall be taken within the specified pay lines for the structure or

as indicated on the drawings.

Any concrete placed in the excavation beyond the line of structures to avoid use of forms shall

not be paid for. The quantity of item shall be computed by using prismoidal formula only.

If block outs and slots are necessary for embedding the foundation bolt and other embedded parts shall

be provided by the contractor without any extra cost. The payment for work required for it, shall be

presumed to be included in the payment of concrete item.

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CHAPTER III

CANAL LINING

1.0 SCOPE OF WORKS

1. The item shall include furnishing all materials; equipment and labour for providing and laying

cement concrete lining.

2. It also includes providing and placing (a) reinforcement whenever necessary (b) porous plugs (c)

expansion/contraction and construction joints.

3. It also includes providing and removal of all form work (whenever necessary), furnishing all

materials, equipment and labor for transportation, erection, keeping in place with necessary fixture and

supports, oiling etc. complete.

4. It also includes curing of bed and slopes of lining.

2.0 CLEARING SITE

2.1 The area proposed for lining, as a whole shall be cleared of all objectionable material. Any waste

materials obtained from such site clearance shall be disposed off in a manner directed by the Engineer-

in-charge. The cost of this operation shall be deemed to have been covered under the rated quoted for

canal lining.

3.0 GENERAL

The provision of this paragraph applies to the preparation of all sub grade/foundation upon which lining

is to be placed. The lining shall be in-site cement concrete lining or of other type as shown in the

drawing. The items of schedule for preparing the sub grade for lining includes dewatering of canal

section, carrying out all excavation below the underside of lining required for placing selected bedding

materials, wetting the surfaces; furnishing or procuring soils from stock piles, placing, moistening and

compacting the selected bedding materials to specified density by power rollers/ appropriate compaction

equipment/slope compactors, and trimming the canal section. The item also includes excavation and

preparation of foundation for providing necessary under drainage facilities/filter blanket and pressure

relief arrangement wherever required including placing test sections to verify that the procedures result

in acceptable results.

If during construction, it is found necessary to alter the canal sections and side slopes without altering

the thickness of lining, the contractor shall be informed in writing of such change. The rates quoted

being on one square meter basis for the lining thickness, the contractor shall have to execute the work at

the same bid rate as quoted in bill of quantities without any extra claim for change in the section of the

canal.

Whereas the work of trimming the canal section up to underside of lining of lining shall be carried out

well in advance, the trimming of proud section equivalent to the thickness of lining (for base

preparation of lining) shall be carried out immediately prior to laying of lining but in no case the time

interval shall exceed 3 days in normal weather and 2 days in adverse conditions.

The preparation of sub grade in different soils for laying the cement concrete lining shall conform to

clauses 4.1, 4.2, 4.3, 4.4, 4.5, of Indian standard IS: 3873-1978 (Indian code of Practice for laying in-

situ cement concrete lining on canal). It shall also hold good for laying masonry lining it shall be

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ensured that the sub grade is made adequately moist with fine water spray through nozzle to a depth of

about 15 cm.

4.0 PREPARATION OF SUBGRADE CONSISTING OF EARTH

(i) The sub grade shall be prepared, dressed, and rolled true to level and according to the required

cross section of the canal to form a firm compacted bed for lining.

(ii) Sample profiles true to cross section of the canal shall be made at suitable intervals, as directed

by the Engineer, to ensure correct formation of sub grade. The contractor shall place selected bedding

materials in test profile true to the cross section of canal at times and place designated by the Engineer

to show the adequacy of his construction procedures for laying bedding materials. The test sections shall

conform to clause 4.3.2 of IS: 3873-1993 Modification shall be made as necessary, until it is

demonstrated that acceptable results are being consistently obtained. The cost of the operation shall be

deemed to have been covered in his quoted rates.

(iii) If at any point, material of sub grade has been excavated beyond the neat lines required to

receive lining, the excess excavation shall be refilled in horizontal layers with material compatible with

sub grade material, moistened if required and thoroughly compacted. Graded filter materials,

compatible with the sub grade material, may be used and compacted to specified density.

(iv) When partial filling of existing canal sections is necessary to reduce the cross sectional area to

that required for lined canal, the fill shall be placed and suitably compacted by

rolling/compactors/mechanical tampers to form firm foundation for placing the lining to avoid its

settlement. Slope compactors shall also be used as required for effective compaction of sub grade to the

specified smoothness, hardness, and density.

(v) The consolidation of bed in sandy reaches shall be done by saturating the bed with water before

lining is placed. The consolidation of side slopes in such reaches shall be done by over cutting the sub

grade in slopes by 15 cm and refilling it with earth and compacting by vibro-compactors/appropriate

mechanical compactors.

(vi) The compaction of sub grade in other than predominantly sandy reaches shall be done at

optimum moisture content in layers not more than 22.5 cm to 25.00 cm thick to obtain a dry bulk

density of 98% of the density at optimum moisture content obtained in accordance with IS: 2720 (Part

VII) - 1963. Consolidation shall be done by power rollers / vibratory power rollers / suitable

compactors. In the sandy reaches, compaction shall be governed by 'relative density test' and the relative

density shall not be less than 65%.

(vii) Where placing and compacting bedding materials in on sloping foundation, the layers shall be

placed parallel to the surface of the foundation. If at any point, the foundation material is disturbed or

loosened it shall be moistened if necessary and thoroughly compacted to form firm foundation for

placing the lining.

(viii) All along the canal alignment, the rain cuts on the inner slopes on the banks shall be filled up

with approved soil and shall be compacted thoroughly to required lines, dimensions, and levels.

(ix) If at any place, placement of bedding material below the proposed lining is required, due care

shall be taken by the contractor to place the bedding material on scientifically approved surface

adequately moistened (to be moist to a depth of 15 cm or the depth up to impermeable layer below,

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whichever is less) in layers not exceeding 15 cm in depth in a single operation and thoroughly

compacted.

(x) All loose material likely to be present at the end panel of existing lining adjacent to which lining

is to be placed shall be removed and all voids beneath the existing linking shall the refilled and

compacted thoroughly, No extra payment shall be made on this account.

5.0 PREPARATION OF SUBGRADE CONSISTING OF ROCK

(i) The sub grade shall be prepared and dressed true to level and according to the required cross-

section of the canal.

(ii) Final cutting for 300 mm-450 mm in hard rock shall be carried out by wedging, barring,

controlled blasting or trimming with pavement breakers etc. No extra payment will be made for this.

(iii) The bed and side slopes of the canal excavation profile over which the bedding material, under-

drainage and pressure relief arrangements (Where ever so required) are to be placed and over laid with

lining shall be furnished accurately to true and even surfaces and to the dimensions shown on the

drawings.

(iv) All excavation including over breakage below the lines of underside of lining shall be back-

filled completely up to the lines of underside of lining with suitable bedding materials as under or as

directed by the Engineer-

- The bedding materials shall be lean concrete (1:5:10) in bed and sides for thickness of filling

less than about 25 cm; and RR masonry in cement mortar (1:5) if thickness is more than 25 cm.

OR

In Slopes : In slopes, the selected material shall be suitable semi pervious material/gravelly soil and a

layer or pea gravel as binding materials duly moistened and compacted by appropriate

compactors/tapers to form a firm backing for the lining.

In Bed: In bed, the selected bedding materials shall be rock spalls and chips to form a firm backing.

Selected bedding materials to be used over fractured rock or rubble shall be such as would resist piping

and consequent washing of fines into the sub grade voids and thus losing support. The material shall be

approved by the Engineer for its impermeability and care of placement.

5.1 TOLERANCE IN EXCAVATION

Excavated, trimmed/dressed profile provides the final for lining and tolerance shall be comparable to

the following.

Departure from established alignment ±20 mm on straight reach and ±50mm on

tangents, and partial curves.

Departure from established grade. ±20 mm on small canals

The above tolerance shall be negotiated gradually through smooth transition in a length of about

50m. No over run in excavation, filling with the materials as directed by the Engineer, shall be paid to

the contractor. The selected bedding materials in the case of bed and sides of canal profile in normal

soils shall be compatible with sub grade materials and thoroughly compacted.

100

5.2 TOLERANCE IN SURFACE IRREGULARITIES IN PREPARATION OF FINAL

SUBGRADE

Surface irregularities shall be tested by the use of a long template consisting of a straight edge or the

equivalent there-off for curved surfaces and shall not exceed the following limits.

(i) 6.25 mm for sub grade in bed.

(ii) 12.50 mm for sub grade in the side slopes.

Final sub grade exceeding these limits shall not be accepted.

6.0 PREPARATION OF SUBGRADE CONSISTING OF EXPANSIVE SOILS (IS : 9451 -

1994)

Field and laboratory tests shall be carried out to determine the physical, textural, engineering, and

chemical properties of expansive soils and evaluate the swelling pressures of soils in various reaches to

establish the thickness of CNS (Cohesive non-swelling solid) layer required so that the resulting

deformation is within the permissible limit of 2 cm. The thickness of CNS layer to be provided normal

to the sub grade shall be governed by the Indian Standard, IS: 9451 - 194, out lined below. CNS

materials shall be non-swelling with a maximum swelling pressure of 10 KN/m2 when tested in

accordance with IS 2720 (part-42): 1977 at optimum moisture content and minimum cohesion. Some of

the soils which may be considered as cohesive non-swelling soils are all adequately compacted clayey

soils, silty clays, sandy clays, gravelly sandy clays etc. exhibiting cohesive properties and containing

predominantly non-expanding type clay minerals with liquid limit not exceeding 50 percent.

Expansive soils are inorganic or organic plastic clays characterized by shrinkage, high compressibility

and swelling properties. To counter act the swelling pressure and prevent deformation of lining, a CNS

material of required thickness is sandwiched between the soil and lining. The thickness of CNS material

is normal (perpendicular) to the sub grade.

Note: CNS soil is to be laid in layers and compacted, to at least 90% of Proctor Density.

6.1 Specification of CNS Soils

(i) General Gradation of CNS soil

Clay (less than 0.002 mm)

Silt (0.06 mm = 0.002 mm)

Sand (2 mm - 0.06 mm)

Gravel (greater than 2 m)

(ii) The CNS material shall be non-swelling with a maximum swelling pressure of 10

KN/n2 when tested in accordance with IS:2720 (part-42) 1997 at optimum moisture content and

minimum cohesion.

(iii) Index properties

Liquid limit Greater than 30, but less than 50%

Plasticity Index Greater than 15, but less than 30%

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If given CNS material is not available, designed soils mix to produce artificial CNS may be used. The

artificial CNS shall satisfy the condition of swelling pressure mentioned in the sub Para (ii) above.

In respect of the provision of CNS layer in the bed, it shall be as worked out from consideration of

swelling pressure. However, the thickness of CNS layers to be provided on slopes shall, in addition be

governed by the construction consideration i.e. from the Power Roller roll able width consideration of

achieving effective compaction. CNS layers shall be compacted to at least 98.50 % proctor density.

6.2 DURING CONSTRUCTION, IT SHALL BE ENSURED THAT

(i) Serrations/steps/benches shall be provided in the side slopes of canal in cutting to provide a

good bond between the CNS layers and expansive soil and to also prevent contact slides between CNS

materials and expansive soil.

(ii) Proper moisture shall be added to CNS material and expansive soil.

(iii) CNS material shall be laid in layers (± 20 cm thickness) and compacted to 98% percent proctor

Density, preferably, by vibratory Power Rollers viz fully mechanized compaction. No manual

compaction will be allowed.

(iv) To avoid slopping and rain cuts during the rainy season, it shall be advisable to provide CNS

right up to the ground level.

(v) The sub grade, on which CNS layer is to be laid shall, generally be not kept exposed for more

than 3 to 4 days prior to the placement of CNS layer.

(vi) Effective and mechanized compaction of sub grade for side lining on slopes and bed is very

important in cutting or embankment. In addition to the designed thickness of CNS, 15 cm or more

(perpendicular to side slope) of extra thickness (called pride) shall be provided and compacted. This

pride shall be removed only just prior to the placement of lining (a time interval of say about one to two

days), thus making a fresh and well-compacted surface available for lining. In small section channels, it

shall be appropriate to over excavate the section and fill the entire section with CNS material (laid in

successive layers and compacted to 98 % proctor density), and thereafter, scoop this section to the

designed section for placement of lining. This PAD method ensures effective compaction by 8-10 T

power rollers or equivalent vibratory power rollers. The CNS material so scooped out is utilized in the

next reach through re-handling. However, this is deemed to be included in the item rate of providing

CNS & will not be paid separately.

(vii) Under drainage arrangement, through 'porous concrete plugs or any other device' as per drawing,

shall be provided.

7.0 FINAL PREPARATION OF SUBGRADE FOR PLACEMENT OF CONCRETE LINING

The work of trimming canal section up to the underside of concrete lining and preparing sub grade for

concrete placement include removal of pride section. Pride equivalent to the lining thickness on sides

and bed on the underside of lining shall be left unexcavated and the removal of this pride shall be done

prior to laying of lining but in no case shall the time interval exceed 3 days in normal weather and two

102

days in adverse weather conditions. Sub grade surface shall be trimmed accurately so the underside

dimensions of the lining; embankment and selected back fill placed in over excavated sections shall be

moistened and compacted to 98% proctor density, so as to ensure a firm and unyielding sub grade. It

shall be ensured that the final sub grade is made adequately moist with fine spray nozzles (or with

gardener's cans) to a depth of about 15 cm, before placement of concrete to prevent it from absorbing

water from the freshly laid concrete. Water direct from hoses, shall not be used for wetting of the sub

grade to prevent erosion and slushy condition on the sub grade.

7.1 The rate for providing and laying embankment shall include the cost of final preparation of

sub grade for placement of concrete lining & no separate payment on this account shall be admissible.

7.2 MODEL/SECTIONS/TEMPLATES

Model sections or templates of size 15cm X 7.5cm or any other size specified and shown in the drawing

shall be constructed up to the bottom of lining at 18 m intervals in straight reaches and at 9 m interval in

curves, or as directed by the Engineer-in-charge, so as to achieve a smooth straight/curved sub grade

surface free from unsightly kinks and depressions. The model sections in the bed and sides shall be

constructed in M15 cement concrete. The top level of templates will be the bottom level of lining.

Since the model sections are to be used as reference for excavation and trimming of sub-grade for

seating to the lining initially and for laying and finishing to required profile and grade to a very close

tolerance of 3 mm in a length of 3m any undulations in the model sections beyond the permissible

tolerance shall have to removed and redone by the contractor. No separate payment shall be made for

this view and shall be deemed to be included in the rate of lining.

8.0 INGREDIENTS

Ingredients i.e. cement, sand, coarse aggregates, water AEA, for cc lining should satisfy the

specification of Concrete Mix Ingredients.

9.0 LAYING OF CEMENT CONCRETE LINING SELECTION OF LAYING METHODS

(i) The concrete shall be generally governed by IS: 456-2000. The concrete shall also be governed

by all the provisions of the technical specification included here. Concrete lining shall be laid in the

canal prism as shown in the drawing. Maximum nominal size of coarse aggregate shall be 20 mm for a

lining thickness of 75 mm. Cement as per IS code 456, Cement conforming to IS 1489 shall be used.

(ii) It shall be result-oriented from considerations of speed and quality construction to optimize

mechanized placement of cc lining. Accordingly, mechanized cement concrete lining of bed and side

slopes of canal section through deployment of Concrete pavers shall be done.

(iii) For the concrete lining to be placed with concrete pavers, PVC strips shall be inserted in both

the transverse and longitudinal contraction joints at 3.0 m spacing instead of cutting of grooves and

filling with sealing compound.

(iv) Placement of protective CC lining of 10 cm thickness (with MSA 20 mm) with nominal

reinforcement in 10 m reach in upstream 15m in downstream of each canal structure, may be placed

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through conventional method (VIZ manually) if so warranted by the contractor, No contraction joints

are needed in reinforced concrete lining.

(v) Placement of concrete in profile walls (60 cm X 30 cm) in unlined canal reached at 150 m

interval may also be by manual conventional method.

Note: Since the CC lining has to be placed during the canal closure period, concrete toe walls ( 30

cm X 30 cm ±) shall be constructed at the end of the completed lining (both U/S to D/S) prior to

release of water after each closure to ensure the safety of lining.

(vi) The contractor may use "Baby Paver" (as against full Paver) in such reaches as are of small

section and the slope length is up to about 3.5 m. In such reaches, insertion of PVC strips in contraction

joints may not be possible and, accordingly, grooves would be cut by the cutters installed on the Baby

Paver and contraction joints filled with approved sealing joints.

9.1 SLUMP

A slump range of about 50 mm -65 mm shall be considered adequate at the placement site from

considerations of proper discharge of concrete from the transit mixer/agitator cars, mechanical mixer,

and ease of placement and attaining a well consolidated lining with a good finish.

9.2 AIR ENTRAINING AGENT

AEA, as an admixture shall be added to the concrete batch in solution in such a manner as will

ensure uniform distribution of admixture throughout the batch during the specified mixing period of

about 2.5 minutes. The amount of AEA shall be such as to effect of about 5% air in the mix in order to

have good workability and, thus, secure a good finish of concrete lining.

9.3 CONCRETE PRODUCTION AND TRANSPORTATION

Concrete shall be produced in a stationary weigh batching plant/plants of adequate capacity

installed at a suitable place/places by the contractor and concrete conveyed to the placement site/sites in

mobile truck mounted transit mixers for placement of concrete lining with fully mechanized Concrete

Paver /Pavers or Baby Paver wherever warranted) No manual concrete making shall be allowed.

Alternatively, Or in addition to the stationary B&M Plants, mobile self-loading, weigh batching,

mixing and transporting mixer with the mixer drum capacity of 2.8 m3 (or other suitable capacity) shall

be deployed by the contractor for production of controlled concrete as well as transportation of the

concrete to the placement sites. Concrete transported by the transit mixer or mobile batching-mixing

and transporting equipment shall be delivered to the hopper of the side discharge conveyer of the

concrete paver. The paver shall screed up the concrete and duly compact it (cylinder finishing).pavers

will be fitted with the devices for insertion of PVC strips in contraction joints as lining progresses. Each

lining machine and the associate support equipment shall be capable of placing canal lining at an

average advancement rate of not less than about 10 m so that insertion of P.V.C. strips in the

contraction joints is achieved smoothly and efficiently when the concrete is still in a good plastic state.

contraction joints shall be as shown in the drawing at 3.0 m spacing. However, an expansion joints as

104

per design or as directed by the engineer-in-charge shall be provided between lining and the canal

structure.

Note: For mechanized placement of CC lining in small section channels/dust. System, arrow type

or equivalent slip form steel gantries shall be used, the specification of which will be covered in a

separate chapter.

(i) Concrete shall be placed only in the presence of a duly authorized representative of the

Engineer.

(ii) Concrete shall be mixed in a mechanical mixer. Hand mixing of concrete shall not be

permitted.

(iii) When concrete placing operations are stayed for the day or are interrupted because of break

down or are delayed by other causes or where the contractor elects to construct a joint, the edge of the

fresh concrete lining shall be bulk headed to a surface normal to the lining along transverse and

longitudinal lines. Before placing operations are resumed the surface of hardened concrete shall be

prepared as a construction joint.

Whenever a substantial break-down occurs in the concrete production or concrete transportation

system, a joint should be formed as close to the face of the fresh concrete as possible. All concrete on

the new side of the joint shall be removed. The fresh concrete shall than be placed against the existing

concrete with the full groove for required contraction joint formed in between them. This is essential to

eliminate cold joints.

10.0 UNDER DRAINAGE

Wherever specified and shown in drawing, porous concrete plugs of 75 mm dia and 300 mm length

shall be provided in bed and side slopes underlain by graded filter of size 350 mm by 350 mm or any

other size directed by the Engineer-in- charge. Porous concrete shall be composed of one part of cement

and 4 parts of coarse aggregate by weight with the size of coarse aggregate not more than 20mm .No

sand is to be used .only so much water shall be used in concrete as is required to produce a paste which

will coat the particles without filling the voids. In placing porous concrete in moulds, care shall be taken

to ensure that it is not over tamped or compacted so as to reduce its porosity. The porous concrete

hardens, it should be kept fully moist with water for at least 14 days age be such that water shall pass

through slab or porous concrete 30 cm thick at a minimum rate of 500 liters/min/m2 with a constant 10

cm depth of water on the slab.

11.0 TOLERANCE IN LINING THICKNESS

The permissible tolerances for the canal lining shall be as under:-

Variation in thickness of lining: +_10% provided average thickness is not less than designed thickness.

12.0 TEMPERATURE OF CONCRETE

Temperature of concrete as placed, critical to cracking control and durability, shall, preferably

not exceed about 32.20

C (900 F). Accordingly, placement of concrete in hot weather shall be done

105

during the morning and evening hours, extending to night hours as required. For work in extreme

weather conditions, the procedure set out in IS 7861 (Part- 10 or IS 7861 (Part-2) be broadly followed.

13.0 CURING OF CONCRETE LINING

The concrete lining of the canal bed shall be cured in conventional manner with water by

making small earth bunds of, say 20 cm to 30 cm height and ponding water. The side lining shall be

cured with membrane-forming curing compound only.

13.1 SPECIFICATION OF MEMBRANE-FORMING CURING COMPOUND

The white pigmented curing compound conforming to ASTM designation of C-309-81 (or the

Indian manufacture conforming to International Standard of C-309-81) shall be used to form water-

retaining membranes on the surface of concrete. The curing compound shall be used only after it is

approved by the Engineer. The curing compound shall be applied immediately after the bleeding water

shine disappears leaving a dull appearance on concrete surface. The liquid compound shall be kept

continuously stirred mechanically in a drum and sprayed uniformly over the concrete surface. One liter

of curing compound shall normally cover about 4.00 m2 of concrete surface. Accurate coverage should

be based on laboratory and fields trials. Laboratory test shall be carried out to check that with specified

coverage, the loss of water does not exceed 0.55 kg/m2 over a period of 72 hours. Other tests relate to

reflectance and drying time. Day light reflectance of white pigmented curing compound shall not be less

than 60% of that of magnesium oxide. The drying time requirement specifies that the curing compound

should be dry to touch in not more than 4 hours. When the curing of concrete lining is not found

satisfactory, the Engineer-in-charge may direct the contractor in writing to resort to second layer of

membrane curing.

14.0 CORE TESTS

Testing –SAMPLING AND STRENGTH OF DESIGNED MIX CONCRETE

(i)SAMPLING OF CONCRETE

A random sampling procedure shall be adopted to ensure that each concrete batch shall have

reasonable chance of being tested, viz. the sampling should be spread over the entire period of

concreting and cover all mixing units (concrete production units)

FREQUENCY OF SAMPLING

(ii)The minimum frequency of sampling of concrete of each grade shall be in accordance with the

following:

S.No. Quantity of concrete in the work m3 Number of samples

1 1-5 1

2 6-15 2

3 16-30 3

4 31-50 4

5 51 and above 4 plus on additional sample for each

additional50m3 or part there of

106

At least on sample shall be taken from each shift.

(iii) TEST SPECIMEN

Three test specimens shall be made for each sample for testing at 28 days. Additional specimens may be

taken to determine the strength of concrete at 7 days. Test results of the sample shall be the average of

the strength of 3 specimens. The individual variation should not be more than + 15% of the average

strength of 3 specimens. If more, the test results of the sample are considered invalid.

ACCEPTANCE CRITERIA OF COMPRESSIVE STRENGTH

Concrete shall be deemed to comply with the strength requirement when both the following


(a)The mean strength determined from any group of 4 non overlapping consecutive test results complies

with the appropriate limits in column 2 of following table.

(b)Any individual test result complies with the appropriate limits in column 3 of the following table

TABLE

Characteristic compressive strength compliance requirement

Specified grade Mean of group of 4 non overlapping

consecutive test results in N/mm2

Individual test results in N/mm2

M 15 fck +0.825 x established standard

deviation (rounded off to nearest 0.5

N/mm2)

Or


fck – 3 N/mm2

M 20 or above fck + 0.825 x established standard

deviation (rounded off to nearest 0.5

N/mm2)

Or


fck – 4

N/mm2

Note:means greater than or equal to

In the absence of established value of standard deviation, the following value may be assumed in the

first instance and, thereafter, established values based on the requisite number of test results.(not less

than 30)

Grade of concrete Assumed standard deviation

M10 and M 15 3.5 N/mm2

M20 and M 25 4.0 N/mm2

fck = Characteristic compressive strength of 150 mm cube at 28 days in N/mm2. For M 15 & M20

grades fck is 15 N / mm2 and 20 N/mm

2 respectively.

107

For M 10 concrete fck is 10N/mm2. In respect of CC lining with a minimum cement level of 250 kg/M

3.

Minimum fck envisaged is 15N/mm2. Based on the assumed standard of deviation values of 2N/mm

2

and 3Nmm2 for M10 and M15 respectively their hiseling criteria of compressive strength can be

envisaged as:

Specified grade Mean of the group of 4

non-overlapping

consecutive test results

in N/mm2

Individual test results in

N/mm2

M10 fck + 0.825 x standard

deviation

fck – 2 N/mm2

M 15 (CC lining

with minimum

cement level of

250 kg /m3)

fck + 0.825 x standard

deviation fck – 2.5 N/mm

2

Note : The minimum cement level of 317 kg/m3 for plain cement concrete lining is from the

durability consideration and not on the 28 day characteristic strength basis alone.

Standard Deviation: It is calculated from the following equation:

SD = (x-x)2

N-1

N= No. of samples (30 samples are generally considered)

X = Sum of the mean value of 3 test specimens of each sample divided by the number of samples.

Viz overall average strength.

X= Difference between overall average strength and the mean strength of 3 test specimens of each

sample.

Core test -In case of doubt regarding the grade of concrete used, either due to poor workmanship or

based on results of cube strength test, Compressive strength tests of concrete on the basis of 14.1 may

be carried out,

14.1 Core Test: - The points from which cores are to be taken and the number of cores required shall be

at the discretion of the engineer- in charge and shall be representative of the whole of concrete

concerned. In no case, however, shall fewer than three cores be tested

14.2 Cores shall be prepared and tested as described in IS: 516

14.3 Concrete in the member represented by a core test shall be considered acceptable if the average

equivalent cube strength of the cores is equal to at least 85 percent of the cube strength of the grade of

concrete specified for the corresponding age and no individual core has strength less than 75 percent.

14.4 Non-destructive Tests: - Non destructive tests are used to obtain estimation of the properties of

concrete in the structure. The methods adopted include ultrasonic pulse velocity (see IS 1331) (part-1)

and rebound hammer (IS 13311(Part2), probe penetration, pullout and maturity. Non- destructive test

provide alternatives to core tests for estimation the strength of concrete in a structure, or can supplement

the data obtained form a limited number of cores. These methods are based on measuring a concrete

property that bears some relationship to strength. The accuracy of these methods, in part, is determined

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by the degree of correlation between strength and the physical quality measured by the non- destructive

tests.

Any of these methods may be adopted, in which case the acceptance criteria shall be agreed upon prior

to testing.

14.5 If the overall strength in a particular section is found less than 85% of specified strength, the

agreement rate will be reduced by 30%in case Engineer-in-charge agrees to accept the work instead of

dismantling it.

(iv) ACCEPTANCE CRITERIA OF COMPRESSIVE STRENGTH

The concrete shall be deemed to comply with the strength requirement when both the following


(a)The mean strength determined from any group of 4 non overlapping consecutive test results complies

with the appropriate limits in column 2 of following table.

(b)Any individual test result complies with the appropriate limits in column 3 of the following table

15.0 JOINTS

Contraction joints shall be provided and treated as shown in the drawings or as directed by the

Engineer. Expansion joints shall be provided only where structure intersects the canal lining. No

expansion joints are to be provided in CC lining at any other place.

Both the Transverse and longitudinal contraction joints shall be spaced at a maximum spacing of

3.0 m centers with the first longitudinal joint at 18 times thickness of for lining below the top edge (viz

about 1.35 m for 7.5 cm thick lining, For the lining placed with concrete paver, PVC strips shall be

introduced in the contraction joints. In such small reaches where paver cannot be deployed and concrete

lining is placed manually, contraction joints will be cut in grooves and filled with sealing compound.

The Shape, spacing and dimensioning of contraction joints shall be as shown in the drawing. Broadly,

the joints shall extend to at least 1/3 of lining thickness (viz. 2.5cm for 7.5 cm thick lining) with a top

width 12 mm maximum and tapering to 9 mm to join a 450

groove at bottom. The contractor must

ensure that the grooves are of specified dimensions, acceptable to the Engineer-in-charge. Longitudinal

contraction joints are to be provided only where the wetted perimeter of canal section exceeds 6 m.

15.1 FILLING OF JOINTS

Filling of contraction joints (in cc lining placed manually in small isolated reaches) shall be

taken up only after a minimum of 28 days setting period of cc lining. The grooves shall be cleaned

thoroughly to their full depth and width brush, air jet, water jet etc. All loose particles and foreign

matter shall be removed and the grooves shall be thoroughly cleaned and dried to the satisfaction of

Engineer-in-charge or his representative prior to pouring of sealing compound so as to ensure good

adhesion to the sealant. The primer shall then be applied by means of brush or any other suitable

applicator to cover the sides completely before the application of the sealing compound.

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15.2 COMPOSITION OF SEALANT

Unless otherwise specified, the sealant shall be prepared from the following materials.

1. Bitumen 85/25 : 55%

2. Sand (fineness modules 1.00 to 1.50) : 43%

3. Asbestos powder (of white color) : 2%

15.3 PROCEDURE

The sealant shall be prepared by heating the bitumen to 3750 F and sand also to the small

temperature separately. The sand shall be mixed with 2/3rd

quality of bitumen first and then asbestos

powder shall be added to it. The remaining 1/3rd quantity of bitumen shall then be added to this mix

and stirred thoroughly. The groove shall be covered with wooden strip about 1 m long and held on

slopes with the help of clay puddle put along the sides. The wooden strip shall be coated with grease on

inner side so that it may not stick to the filler compound. The wooden strip shall be gently removed

after about 30 minutes and the next joint shall than be filled in similar manner. The joint shall be

finished with a hot trowel and any hole shall be refilled with sealant. Filling of joints shall commence

from bottom of slopes.

Alternatively, the sealant to be procured by the contractor shall confirm to the requisite Indian Standard,

as approved by the Engineer-in-charge.

16.0 MEASUREMENT AND PAYMENT

All linear measurements shall be in meters, correct to 0.01m. Areas shall be computed in square

meters. The perimeter of lining shall be the tope finished surface of the lining. Payment for lining shall

be made for the thickness shown on the drawings and on per square meter basis of the superficial area

including horizontal coping on both sides at the lining top. The thickness of lining shall be crosschecked

by (i) volume of concrete placed and area covered (ii) use of probe when concrete is green and plastic

and (iii) random coring. Any over run in quantity of concrete in lining shall not be paid. Running

payment will be made at 80% of the accepted unit rate. The final payment at 100% accepted rate will

only be made after receipt of acceptable test results.

The porous blocks provided for under drainage will be paid on per No. basis separately. Similarly

payment of contraction joints, construction joints and expansion joints shall be on running meter basis

and shall be paid separately.

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CHAPTER - IV

REPAIRS OF CANAL STRUCTURES.

General:

Canal Structures are to be repaired mainly for the damaged coping, parapet walls of road bridges, return

walls of cross drainage structured, falls and aqueducts etc. In head regulators and falls, damaged floor

concrete would be replaced. Hoist platforms of regulators are also damaged, which would need

repairs/re-construction. In the aqueducts and cross drainage structures, there are leakages, which would

be addressed through re-pointing/plastering of joints after racking of the joints.

Also parapet and wing/return walls of masonry shall need to be strengthened.

4. STONE MASONRY STRUCTURE

4.1 SCOPE

This item shall include providing all material, labour and equipment required to construct the

stone masonry and/or stonewalls including transporting material,

Preparation of mortar and placing and curing of masonry. It also includes the form work and scaffolding

if required.

4.1.1 MATERIAL

4.1.2 STONE

The stones used for masonry shall be clean, hard, dense, durable, tough and sound and shall be

free from decayed and weathered portions, veins flaws, cracks, soft seams, sharp corners and other

defects. Stains on two out of six faces may however be allowed if such stains cannot be removed even

after rubbing with hard wire brush. The rubble shall have, as far as possible, uniform color and texture

and shall be quarried from approved quarries. The size of rubble stones shall be such that 75% stones

are not less 15cm in size in any direction and weighing not less 23 kg.

Rejected stone shall be removed from the site within 3 days failing which department will remove

the same at the cost of the contractor. Following IS codes shall generally apply to the stone masonry

work.

IS 1597 (part-I) 1992 : Code of practice for construction of

stonemasonry.

IS 1127 1970 : Recommendation for dimension and

workmanship of natural building stones for

masonry work.

IS 5218 1969 : Method of test for toughness of natural building

stone.

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IS 1124 1974 : Method of test for determination of water

absorption, apparent specific gravity and porosity

of natural building stones.

IS 2250 1981 : Code of practice for preparation and use of

masonry mortars.

IS 1122 1974 : Method of test for determination of true

specific gravity of natural building stones.

IS 1121 1974 : Method of test for determination of strength

properties of natural building stones.

IS 2116 1983 : Specifications of sand for masonry mortar.

The stone shall be tested for water absorption, specific gravity, soundness, and compressive strength.

The physical properties of stone shall meet the following requirements.

Test IS code Acceptance Criteria

(i) Water absorption (when

immersed in water for 24

hours)

IS 1124 : 1974 Shall be less than 5%

(ii) Specific gravity IS 1122 : 1974 Greater than 2.5%

(iii) Soundness IS 1126 : 1974 Less than 10%

(after 5 cycles)

4.2 SAND

4.2.1 GENERAL

The sand shall be natural river sand washed and screened and the maximum size of particles

being limited to 4.75mm for mortar. The second screening shall be done at site of work before use and

no extra claim shall be entertained on this account.

The sand shall consist of hard, dense, durable uncoated rock fragments and shall be free from injurious

amount of dust, lumps of soft or flaky particles, shale, alkali, loam, mica and other deleterious

substances. The total percentage of all the deleterious substances shall not exceed 5%. The sand shall

also be sound and free from deleterious amounts of organic impurities.

4.2.2 GRADING

The sand shall be well graded and the grading shall be controlled in such a way that its fineness

modules ranges between 2.20 to 3.20. It shall not have silt more than 3% by weight.

The grading of the sand shall be controlled by mixing of sand from different sources, if necessary, so

that the fineness modulus of at least 9 out of 10 consecutive test samples of finished sand, when

samples are taken, will not vary more than 0.20 from the average fineness modulus of the 10 test

samples. The contractor shall stack sand from different sources separately to facilities sampling and

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testing. At least 3 days stock shall be kept at site of the work to enable the department to take samples

and test the material, in advance of its actual use.

The contractor shall take the approval of the sand stacks in advance. If unapproved sand is used

the work shall be rejected and redone at the cost of the contractor. Sand shall confirm to provisions of :

IS 2116 : 1980

Grading of sand for masonry work

IS sieve size % passing by weight

4.75 mm 100

2.36 mm 90-100

1.18 mm 70-100

600 mm 40-100

300 mm 5-70

150 mm 0-15

4.3 CEMENT

Cement as per IS code 456:2000, Cement conforming to IS 1489, as per approval of the Engineer.

Initial setting time shall not be less than 30 minutes and final setting time not be more than 600 minutes.

4.4 WATER

The water used in masonry shall be free from objectionable quantities of silt, organic matter, alkali and

other impurities. Normally, potable water is considered satisfactory for mixing and curing.

% of solids shall not exceed the following as per IS : 456-2000.

Organic: 200mg/litre Inorganic : 3000 mg/liter

Sulphates (as SO3) : 400 mg/liter Suspended matter : 2000 mg/liter

Chlorides (as CI) : 2000 mg/liter for concrete

PH value of water shall be not less than 6 and acceptable range shall be between 6 to 9.

4.5 CEMENT MORTAR

The cement mortar shall consist of cement and sand each complying with its respective specification

and shall be mixed in specified proportions given in drawings and bill of quantities. The code of

practice for preparation and use of mortar, IS 2250-1981, shall be followed.

Mortar shall consist of Portland cement and sand in the specified proportion, by volume. Sand shall be

natural sand and of grading as may be directed by Engineer. The mortar shall be mixed in suitable sized

mixers. The quantity of sand and cement in each mix shall be determined by weight by conversion, into

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volume on the basis of bulk density as per directions of the Engineer-in-charge after making due

allowance for bulk age of sand.

Only such quantity of mortar shall be prepared at a time as could be completely used up in masonry

within thirty minutes of, mixing. Mortar that has remained longer, than this period or that has become

stiff or set otherwise shall be wasted at the contractors cost.

The mortar shall be mixed intimately in suitable mechanical mixers (of tilting type). The first batch of

mortar at the commencement of work with any mix shall be made richer by mixing 10% more cement

over and above that required for the particular mix. The mortar prepared in the mechanical mixer shall

be mixed for at least 3 minutes after addition of water.

4.5.1 Hand mixing of mortar shall not be allowed : Only in exceptional circumstances, such as

mechanical breakdown of mixer, or when the quantity of work is very small, hand mixing may be

permitted by the Engineer-in-charge for that restricted period and the restricted quantity. This shall be

done on a smooth watertight platform large enough to allow efficient turning over of the ingredients

before and after adding water. Mixing platform shall be so arranged that no foreign material gets mixed

with water nor does the mixing water flow out. Dry sand and cement shall be mixed thoroughly by

turning over to get a mixture of n\uniform color. Enough water shall then be added gradually and

mixing continued until mortar of required consistency of 90 to 100 mm, as required in clause 9.1.1 of IS

: 2250-1981 is obtained.

All ingredients shall be fed to the mixer simultaneously. The required quantity of water to achieve the

required consistency shall be pre determined y trial mixes, and portion o water from 5 to 10 percent

shall precede and the like quantity shall follow the introduction of other materials. The remainder of

water quantity shall be added during mixing operation.

4.5.2 MORTAR CONTENT

As specified herein the mortar content in 1 cum of the masonry is expected to vary between 0.37 to 0.43

cum. The average being assumed as 0.42 cum per cum, viz. 42%. The actual consumption of mortar

shall be recorded from day to day as equivalent to the volume of the sand fraction of the mortar before

the sand enters the mixer. The mix shall be as per proportions specified/approved by Engineer-in-charge

from time to time. Following general principles shall be followed.

(i) The ingredients shall be fed into the mixer simultaneously and in such a manner that the

period of flow of each ingredient into the mixer is about the same.

(ii) A portion of water 5% to 10% shall be fed in the mixer initially and like quantity shall

follow the introduction of other ingredients. The remaining of the water would be adde4d uniformly and

simultaneously with other ingredients.

(iii) The thoroughness of mixing and adequacy of mixing time so as to give a uniform mortar,

shall be tested at the start of the job and at such intervals as may be considered necessary. The variation

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in air free unit weights (range between max. and mix.) shall not be more than the limits given below for

three samples, one each taken from the front, center and back of the batch

For one batch - 36.6 kg/cum.

Average for three batches - 25.5 kg/cum

Average of 20 batches - 19.1 kg/cum

Average of 90 batches - 14.3 kg/cum

4.6 MASONRY GENERAL

Generally, the masonry shall consist of sound, tough, durable and as far as possible, fine or medium

grained stone rubble of approved quality embedded in cement mortar. The mix proportion of mortar in

the masonry shall be as shown in the drawings, or of proportion as required by design consideration the

later being subject to approval of the Engineer-in-charge from time to time with due allowance for the

season of the year and the time of the day when the mortar is used and based on experiments and

experience gained. The mortar proportion may be varied if desired by the Engineer, which shall not be

considered extra items. All stones shall be absolutely free from dirt and scale and well cleaned and

washed before being laid. On no account shall masonry be allowed to present a dry surface during the

curing period. At the end of the day's work the top shall be kept well flooded. The masonry shall be

raised in courses and unless otherwise directed the next course shall not be laid earlier than 24 hours

after the laying of the previous course. The rates given in the various items are based on standard

consumption for purpose of computation of cement consumption. However, this shall be assumed as an

average of 40% of finished masonry. A variation up to +_ 3% may be allowed in actual consumption on

reasonable grounds without any change in rates.

Variation of more than 3% on lower side will not be permitted and it will be considered as below

specification of work. Variation of more than 3% on higher side will be at the risk and cost of

contractor.

To keep a check on the quantity of mortar user, record shall be maintained of the mortar turned out from

the mixers and corresponding quantity of masonry laid.

The joints shall be well filled with mortar and suitable spalls shall be wedged to avoid excessive use of

mortar. The stones shall be pressed and tamped.

4.7 TESTS ON MORTAR

Necessary tests to determine compressive strength of the mortar and for its consistency shall be carried

out in accordance with IS: 2250-1981 (Appendix-A). A minimum of 3 test specimens shall be made for

each 120 cubic meters of each class of mortar. There shall be at least 3 test specimens of mortar for each

day of masonry work even if only a few cubic meter of particular mortar is manufactured and used in a

day.

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TEST AND FREQUENCY OF TESTING.

S.No.

Material Test Frequency of test

1 Stone for

Masonry

Compressive strength

Water absorption

Soundness

One test in each working season of

individual quarry.

2 Cement Mortar

Cubes

Compressive strength

after 28 day curing of

mortar cubes.

Up to 120 m3 of masonry work per day =

one sample per shift per mixer. For every

additional 1003 of masonry work per day

= one sample per shift per mixer.

The strength of one sample shall be taken as average of at least 3 test specimens taken from single batch

of mortar. The average strength of any 3 consecutive samples shall be equal to or greater than the

specified strength. The overall co-efficient of variation for any 10 consecutive samples shall not be

more than 15 percent. Not more than 10% of the specimens tested shall have a compressive strength

less than 80% of the required and the average strength of all tests shall equal or exceed the required

specified strength. The minimum compressive strengths for 1:5 and 1:4 cement mortar mixes shall be

50Kg./Sq.cm and 75Kg. /Sqcm respectively.

4.8 RANDOM RUBBLE MASONRY

4.8.1 DRESSING.

The stone shall be set in the work as received from the quarry, after merely knocking off weak corners

and edges with the mason’s hammer and after cleaning scales of foreign matter, coating if any on the

stone. Cleaning and washing of stones as specified earlier shall, however, be done in each case.

4.8.2 WASHING OF RUBBLE

All rubble to be used in masonry shall be thoroughly washed with good clean water. All stones shall be

wetted and surface dry while being laid. There must be a good collection of stones, and spalls within

easy reach of each mason to enable proper selection of stones to suit the individual locations while

laying and these shall be kept continuously replenished.

4.8.3 BOND AND LAYING.

The stones shall be carefully laid so as to break joints as much as possible and shall be solidly bedded in

mortar with close joints. No joint shall exceed 37mm nor shall be less than 12mm in thickness. Chips of

stone and spalls shall be wedged in to the work, wherever necessary to avoid thick beds or joints of

mortar and to give maximum density. No dry work or hollow space shall be allowed. Every stone,

whether large or small, shall be set flush in mortar, shaken and hammered down by a mallet to sink in to

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it. The smaller stone used in the filling shall be carefully selected to fit smugly in to the interstices

between the larger one.

Additional mortar to be added to fill the intervening space shall be worked by trowel and light

hand bar, 12.5,, diameter, and 0.60m long to ensure proper mixing and bonding with the bottom mortar.

Disturbing the mortar during the process of setting shall be avoided. After the stone and leave air

pockets. Putting chips in the intervening space, between stones shall not be done before filling it with

mortar and shaking it down to the full depth. Flat chips shall not be laid at top. They shall be driven on

the ends vertically. The masonry surface shall be kept as rough as possible to secure good bond

between successive layers.

4.8.4 HEADERS AND STRETCHERS.

Vertical headers shall be inserted every 1.5m to 2meters apart both along and across the masonry

monolith. They shall run through the height of at least two courses. Their positions shall be staggered

in to successive courses, so that any two courses shall be bonded with such vertical headers. Through

stones shall be laid horizontally from the front face to the rear face every 1.5 to 2meter apart. The

consecutive stones shall over lap each other at least 15cm, and shall be at least 60cm long each.

The overlap shall be staggered as stated herein above, wire brush the masonry to clean between 24 and

36 hours after it is laid. In case of long stoppages of work, leave construction joints two meters vide by

0.5meters deep to serve as cut –off.

Important Requirement of Masonry Construction:

No masonry works shall be allowed accept in night.

Clean the old masonry surface prior to starting of new masonry work.

Desired constituency of mortar shall be maintained.

Do not place mortar which bleeds excessively.

Surface of masonry shall be as rough as possible to secure good bond between

successive layers

Wire brush the masonry surface after the mortar has set finally i.e. after 8hours to 12

hours to remove excessive mortar.

Only such quantity of mortar shall be prepared at a time as could be completely used

within 30 minutes.

Only such quantity of mortar shall be prepared at a time as could be completely used

within 30 minutes.

Adequate mechanical arrangements shall be made by the contractor to protect the fresh masonry against

rapid drying and to cure the masonry as detailed below.

Curing of the masonry shall comments after about 4 to 12 hours of construction (Depending up on

weather, atmospheric temperature etc.) and water shall be gently sprayed to avoid damage.

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All exposed surface of masonry shall be continuously kept moist for a minimum period of 28 days all

methods used for curing shall leave the surface free from any dislocation of damage the surface should

be cleaned of all the materials after completion of work. Should the masonry in any part deteriorate for

want of curing, it shall be pulled down and rebuilt with fresh materials at the cost of the contractor.

4.10 MEASUREMENT OF MASONRY:

Except as otherwise specifically provided in these specifications, measurement of masonry for payment

will be made only to the neat lines of the structures as shown on the drawings or as established by the

Engineer-in-Charge and on the basis of the thickness shown in the drawing. Where more than one

thickness is shown the average. Thickness shown on the drawings will be used as the basis of

measurement for payment.

4.11 TOLERANCES FOR MASONRY CONSTRUCTION:

(i) Variation of Construction time outline from established position in plan:

In 5 meters – 10mm


(ii) Variation of dimension to individual structural features from established position:

In 25 meters or more – 50mm

In buried construction twice the above amount.

(ii) Variation: from the plump and from the specified batter, for all structures :


In buried construction twice the above amount.

4.11.1 PRESSED POINTING:

The joints shall be pressed with special trowel Nayala” as soon as the mortar has begun to set and the

hollow spaces refilled with fresh mortar to consolidate in.

The joints shall be rubbed with Nayala till they are about 5mm deep into the masonry. After rubbing,

the extra mortar of the edges of joints shall be carefully scrapped off with the nose of the trowel to give

neat finish.

4.11.2 FINAL FINISH TO JOINTS:

The joints shall be neat defined, regular and of a uniform width. The joints shall be raised over the

surface of the masonry. In coursed masonry, the joints shall be truly horizontal and vertical. The work

pointed should be kept wet for 21days after pointing is completed.

4.11.3 MODE OF MEASUREMENT AND PAYMENT:

The item covers all the pointing work required for different classes of masonry the work shall be

measured and paid at specific rate mentioned by the contractor in the bill of quantities on square meter,

basis. The rates are inclusive of all leads and lifts.

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4.12 POINTING:

4.12.1 SCOPE.

The item shall consist of furnishing of all tools, equipment, material and labour required to transport

material and providing pointing to masonry work including scaffolding and curing. The pointing shall

be flesh or pressed jointing as directed by the Engineer-in-Charge.

4.12.2 PROPORTION OF MORTAR:

All pointing shall be done with cement mortar 1:3, unless otherwise specified. The cement shall be

confirmed to the specifications, mentioned in section IC-Sub section. A the sand to be used shall be

fine. It shall pass through sieve of size No.16 Mesh A.S.T.M.(IS-120). The sand shall confirm in all

other respect to specification under section IC-Sub Section B.

4.12.3 RAKING JOINTS:

The joints in masonry to the pointed shall be raked square for a minimum depth of not less than the

width of joint when the mortar is firm from not set.

4.12.4 CLEARING JOINTS:

Before pointing the joints shall be thoroughly cleaned of any dirt of loosely adhering cement or mortar

and washed out properly and thoroughly wetted.

4.12.5FILLING JOINTS:

The joints shall then be filled with cement mortar 1:3 unless otherwise, specified. Mortar will be

thoroughly rained and caulked in to the joints. The pointing mix shall neither be too dry not too wet.

The mortar shall have just enough water so that it will stick together on being mounded into a boll by a

slight pressure of the hands but will not free water when so pressed and will leave the hands damp.

Pointing shall be carried out as rapidly as possible and not touched again after the mortar has once

begun to set.

4.12.6 FLUSH POINTING:

The joints shall be filled with cement mortar, which shall be thoroughly rammed caulked into the joints.

No lines shall be pressed on the joints but the joints shall instead be nearly rubbed smooth as soon as

the mortar has begun to act. The extra mortar on the edge shall be carefully scraped off to give a neat

appearance. Pointing shall be carried out as rapidly as possible and not touched again after the mortar

has once begun to set.

119

PLASTERING

4.13.1SCOPE

The item shall consists of furnishing of all tools, equipment, materials and labor required to transport

material and providing pointing to masonry work including scaffolding and curing. The pointing shall

be flush pressed jointing as directed by the Engineer-in-Charge.

PROPORTION OF MORTAR:

All plastering shall be done with cement mortar (1:3) unless otherwise specified. The cement shall be

confirmed to the specifications mentioned in section I.C. sub section A. The sand to be used shall be

fine. It shall pass through sieve of size No.16 mesh. A.S.T.M. (ISI: 120). The sand shall confirm in all

other respects to specification under chapter-2, Sub Section-B.

TABLE

GRADING OF SAND FOR USE IN MASONRY AND PLASTER MORTARS.

IS: Sieve Designation. For internal and external wall and ceiling

plaster, percentage passing by mass.

9.5mm 100

4.75mm 95 to 100

2.36mm 95 to 100

1.18mm 90 to 100

600 micron 80 to 100

300 micron 20 to 65

150 micron 0 to 15

CONSTRUCTION:

All joints in the face work to be plastered shall be raked out to a depth equal to not less than the width

of the joints or 2 cm or as directed by the Engineer-in-Charge. Smooth surfaces of concrete, old plaster,

etc. must be suitable roughened to provide necessary bond for the plaster. The surface to be plastered

shall be cleaned and scrubbed with fresh water and kept wet for Six hours prior to plastering and on

rough surface of wall a preliminary coat must be given to fill up the hollow two coats. The thickness of

first coat shall be just sufficient to fill up unevenness thickness in the thickness surface under treatment.

The second coat shall be applied while the first coat is still soft. Plastering should be done from top to

downwards. The cement mortar that falls on the ground while applying the plaster shall not be used.

Patches of plaster 15cm x 15cm shall be put about 1.5m apart as gauges to ensure plaster work mortar

shall be firmly applied to the joints and on the surface and rubbed and leveled with a flat wooden role

to give the required thickness. All corners shall be chamfered or rounded as directed by the Engineer-

in-Charge. The surface shall be finished to plane or curved surface as shown on the drawings or as

directed by the Engineer-in-Charge. The work plastered shall be kept wet for 21days after it is finished.

120

MODE OF MEASUREMENT AND PAYMENT:

The item covers all the plastering work required for different classes of masonry. The work shall

be measured and paid at specific rate mentioned by the contractor in the bill of quantities on square

meter basis. The rates are inclusive of all leads and lifts.

CHAPTER-V

Repair/Replacement of mechanical fixtures

26.13.1 General

The specifications cover the single faced sluices from 200 mm to 1200 mm size of different shapes with

rising (sliding) and non-rising (rotating) spindles.

26.13.1.2 The specifications is limited to sluices which are suitable for general use only and for the

following types of special use:

a) For wall mounting in situations where small and medium volumes of raw or filtered water,

storm water or sewage are to be controlled and a single faced sail is required on the waterway for

isolating purposes.

b) For water supply draw-off and purification works, sewage plants, ordinary land drainage and

irrigation canals. Hydro-electric collecting aqueducts and tail races.

c) For unbalanced head restricted to 15 meters, tending to push the door on to the frame and

there by helping stanch leakage past sealing face.

d) For manual operation by hand wheel/toe-key/frame or floor mounting head stocks with or

without gearing.

26.13.2 Classification

26.13.2.2. Single faced sluices are of class 1 or class 2 types. Class 1 covers sluices suitable fore a

maximum, sealing unbalanced head of 6 meters of water. Class 2 covered sluices suitable for

maximum sealing unbalanced head of 15 meters of water.

26.13.2.2 Shapes and types of sluices maybe circular, square or rectangular and may either be with

rising or non-rising spindle.

26.13.2.3 Nominal sizes and dimensions. Single faced sluices shall be manufactured according to

the nominal sizes and dimensions as given in Table No.2. Tolerances on the dimensions shall be

closely taken into account and the manufacturing shall be as closed to nominal dimensions as possible.

The range and ratings of different types with rising and non-rising are given in Table No.3.

26.13.3 Materials

121

Following materials in use for the manufacture of various components of the gates.

Sl.No. Component Part Recommended

materials

Reference

1. Frame& door side guide strip Grade 20 cast iron IS:210-1991

2. Spindles, nuts & bolts Mild steel IS:2062-1992

3. Face, Face rings/triad, spindle,

nuts.

Gunmetal IS:2654-1991

26.13.4 Manufacture & Workmanship

26.13.4.1 Frame

26.13 4.2 The frames shall have a robust spigot of an appropriate length, cast integral at the back for

case of support in the waterway and to provide an effective seal. Sluices having circular opening or

waterway may have a spigot dimensions conforming to IS:1538-1976. For square and rectangular

openings the dimensions shall be as per the tendered specifications.

26.13.4.3 The back of the frame shall be flat. The frame for non-rising sluices shall have a

machined face on the top to support the thrust plate.

26.13.4.4 A cast iron side guide strip having a machined taper face on the underside shall be fixed

to the frame on each side by mild steel studs and extending over the height of the waterway to plr9ovide

effective guide throughout the travel of the door. A stopper shall be casted integrally immediately

below the water way and center with it to limit the travel of the door.

26.13.5 Door

26.13.5.1 Door shall have reinforcement ribs integral at the back for strength. On each side there

shall be tapered sung or gun metal or bronzes tape strip not less than three, machined to match similar

taper faced side guide strips on the frame.

26.13.5.2 Two integrally cast lug drilled to take mild steel bearing pin shall be provided doors for

use with rising spindles, integrally cast pocket suitably reinforced to accommodate a nut shall be

provided on doors with non rising spindles.

26.13.5.3 A stopper to match that on the frame shall be casted integrally at the bottom.

26.13.6 Face (Door) and Seat (Frame) Rings.

26.13.6.1 Facings for different types of sluices shall confirm to the dimensions given in table 4 to

8 read with figures 4A, 4B,4C 4D & 4E.

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26.13.6.2 Facings shall be so secured by brass rivet pins in the machined groups of the frame and

door and machined and hand finished, that with the door fully shut a satisfactory water tight seal is

formed on the water way. The contact between the facings shall be sufficient close at every point in the

perimeter so as to produce a uniform bearing all round.

26.13.6.3 The attachment of the facings to the frame and door shall be so carried out that when

finished they shall remain in place free from distortion loosening during effective life of the sluice.

26.13.6.4 Face rings and seat used shall be as per shape and sections given below:-

26.14.1 Guides

Guides shall be adequately secured to the main frame by stud bolts and provisions shall be made for

appropriate longitudinal movement to adjust degree of welding consistence with sealing property.

There shall be little lateral movement and tongues kees shoulders or lugs may be provided for the

purpose.

26.14.2 Spindles.

26.14.2.1 Rising/Sliding type.

The dimensions shall conform to those specified in table No.4,6 & 8 and shall terminate at the top of the

sluice door and operated through either frame or floor mounted head stock. The threaded portion of the

spindle shall be completely clear of the liquid being handled and shall be accessible for lubrication.

26.14.2.2 Non-rising/Retaining Type.

These shall conform to the dimensions given in table No.5&7 and shall be treaded at the bottom. They

shall be restrained axially by a thrust plate on the top of the sluice frame and shall work in a nut located

in pocket on the top center of the door. The screeded portions of the spindles shall have machine cut

square and some thread.

26.14.2.3 The length of road may vary for each installation, the number of coupling required may

be computed from the table No.9. For length exceeding 6 meters, it is recommended that only sliding

rods be employed, but if the prevailing conditions do not permit their use the rotating type of may be

considered.

S. No. Sluice Gate Type of section of

face ring.

Type of section of

seat ring.

1 Sluice up to and

below 300mm

‘L’-Section ‘L’-Section

2. Sluices above

300mm

Rectangular section. Strips/Rings of

Rectangular section.

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26.14.2.4 Thrust bearings-

For non rising spindles bearing shall be provided in the yoke of the frame of a design that will develop

and safely transmit the full thrust at the time of opening or closing the door.

26.14.3 Operating Mechanism:

26.14.3.1 Provision may be made in the tender specification for operation of sluices by hand,

electric, hydraulic or pneumatic power.

26.14.3.2 Hand Wheels:-

For gates having rising or non rising spindles the diameters of hand wheels is dependent on the factors

viz. unbalanced load, type of actuating gear employed (Spur or worm) length of operating rod. The

diameter of hand wheel suitable for use on ungeared hand stocks are given in table No.11 for general

guidance.

26.14.3.3 Height of sluices:-

The overall heights and the dimensions of the sluice frame and doors shall be accordance with table

No.2.

24.14.3.4 Workmanship:-

All casting shall be clean, sound and without defect of any kind. They shall be free from sand and no

casting shall be burned, plugged, stopped, patched or welded and no repairs of defects shall be

permissible. All foundry and machine work shall be done in accordance with best modern practice and

all component parts shall be carefully and accurately machined to Jigs and templates so as to make,

them fully interchangeable on site without any additional work

26.14.3.5 Painting - Immediately after casting and before machining, all cast iron parts shall be

thoroughly cleaned and before rusting commences, these shall be coated by at least two coats of

bitumastic rust-proof compound of satisfactory quality and specification. The final coats shall be

applied to the exterior surfaces, excluding machined portion, after assembly and testing.

26.14.3.6 Testing – after completion each sluice gate shall be tested in the shop for smooth

working of the component parts including operating gear.

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APPENDIX – A

MATERIALS FOR THE COMPONENTS OF FIXED-WHEEL GATES

S.No Component part Recommended materials Reference

i. Wheel Cast steel IS:1030-1989

Cast Iron IS:210-1991

Wrought steels IS:1570-1987

Forged steel IS:2004-1991

ii. Bushing Bronze

iii. Wheel pins or axis Chrome nickel steel or corrosion

resisting steel, mild steel with

nickel or chromium platting.

IS:1570-1987

IS:2004-1991

IS:2062-1992

IS:1060-1992

IS:1337-1991

iv. Structural parts gate

left, track base etc.

Structural steel IS:2062-1992

IS:8500-1992

v. Seal Rubber Appendix-F

vi. Wheel track a) Stainless steel IS:1570-(Pt.V) 1991

b) Corrosion resisting steel IS:1570-1987

c) Cast steel IS:1030-1989

d) Structural resisting IS:2062-1992

e) Corrosion resisting cast iron

Material (a) to (e) may be specified

depending upon the actual

requirements of wheel loads.

IS:2749-1991

vii. Seal seat Stainless steel plate or stainless

steel clad plate.

IS:1570 (Pt.V) 1991

viii. Seal base seal seat Structural steel of convenient shape IS:2062-1992

IS:8500-1992

ix. Seal clamp Structural steel IS:2062-1992

Stainless steel IS:8500-1992

IS:6527-1992

IS:6603-1991

x. Guide Structural steel or corrosion

resisting steel

IS:2062-1992

IS:8500-1992

IS:6603-1991

xi. Springs Spring steel IS:1570-1987

IS:6527-1992

xii. Anchor bolts Structural steel IS:2062-1992

IS:8500-1992

xiii. Guide rollers and

guide shoes

Structural steel or corrosion

resisting steel, cast iron, cast steel

or forged steel.

IS:2062-1992

IS:8500-1992

IS:210-1991

IS:1030-1989

IS:2004-1991

Note:1 Grade of the material confirming to the specifications mentioned above shall be specified by the

designer to suit to the particular requirement.

125

Note:2 Cast iron shall not be used for wheel and tracks for high head gates.

Note:3 The choice of material is governed by the type of installation, accessibility for maintenance,

reservoir water properties silt, etc.

1. Specifications for carbon steel castings for general engineering purposes (second revision)

2. Specifications for gray iron castings (second revision)

3. Schedule for wrought steels for general engineering purpose.

4. Specifications for carbon steel forgings for general engineering purposes (first revision)

5. Specifications for structural steel (stand quality) (First revision)

6. Specifications for structural steel (Fusion welding quality)(second revision)

7. Electroplated coatings of nickel and chromium on iron and steel (First Revision)

8. Specifications for hard chromium electro pumped coatings on iron and steel (first revision)

9. Wieldable structural steel, medium and high strength quality.

10. Specifications for stainless and heat resisting steels (First revision).

11. Specifications for stainless iron castings (First revision)

12. Specifications for stainless wire rod.

13. Specifications for stainless steel bars and flats.

126

Chapter – VI

FORM WORK

General :

1. Forms shall be used, wherever necessary, to confine the concrete and to shape it to the required

lines. Normally all exposed concrete surfaces having slope steeper than 2 horizontal to one vertical

shall be formed.

2. The condition of forms influence not only appearance of the structure but also quality. Use of

good form material and proper form construction and maintenance is very important in field control.

The use of steel form work enhances the appearance of placed concrete. It should be recognized that it

is not particularly economical to use poor quality form. Too often any savings from use or injudicious

re-use of poor timber form are negated by manual labour in repairs and final dressing of the structure to

an acceptable appearance.

Tolerances:

3. The form work shall be designed and constructed to the shapes, lines, and dimensions shown on

the drawings within the following tolerances:

A. Linear Outline:

(a) In any 6m of length + 12mm

(b) In any 12 mm of length + 18mm

B. Plumb, specified batter, or from the curved surfaces of all structures including the lines and

surfaces of columns, walls, piers, buttresses etc.

(a) Iron 3m of height + 12mm

(b) In 6 m of height + 18mm

(c) In 12 m of height or grater + 30mm

C. Deviations from specified dimensions of

cross-section of columns and beams + 12 mm

- 6mm

D. Deviations from dimensions of footings.

(a) Dimensions of plan + 50mm

-12mm

(b) Eccentricity of the footing in the 0.02 times the width

direction of deviation but more than 50 mm

(c) Thickness + 0.05 times the specified thickness.

Note: These tolerances apply to concrete dimensions only, and specified thickness not to

the positioning of vertical reinforcement steel.

Workmanship, cleanliness, and strength of form work.

127

1. The form work shall be of well seasonal timber, steel, or such suitable material or

combination of such materials. Where timber forms are used, these shall, preferably, be lined with M.S.

sheet which offers a smooth faced non-absorbent material. Supports maybe of timber or steel. Suitable

wedges in pairs be provided to facilitate adjustment and subsequent releasing of forms. The contractor

shall furnish the details of his proposed form work to the Engineer-in-charge for his approval before

erection there-of.

2. All rubbish, particularly chippings, shavings, saw dust and grout etc. shall

be removed from the interior of forms before these are erected. Cleanliness of forms shall be again

checked after the forms are in place and before the concrete is placed. The face of the form work,

which is to be in contact with the concrete shall be cleaned and treated with suitable form oil or release

agent. The form oil shall be applied so as to provide a thin uniform coating to the forms without

coating the reinforcement.

3. Forms shall have sufficient strength to with stand all pressure resulting from concrete

placement and vibration without deflection forms the prescribed lines during and after the placement of

concrete and shall be maintained rigidly in position. Where form Vibrators are to be used, it shall be

ensured that the form work is adequately rigid to effective transmit energy from the vibrators to the

concrete without damaging or altering the position of forms. The forms shall be made sufficiently rigid

by use of ties and bracings to prevent any displacement or sagging. Suitable struts or stiffeners shall be

used wherever considered necessary. The forms shall be made mortar tight.

4. After the forms for concrete structures have been erected to line and grade, they shall be

meticulously inspected as to their adequacy. If the forms are not tight, there will be a loss of mortar

which shall result in honey-combing of concrete or a loss of water which shall cause sand streaking. If

the inspection reveals that the forms are not strong enough to hold the concrete or are not braced

sufficiently to stay in alignment, the Engineer-in-charge shall immediately notify the contractor to set

right the deficiencies and concrete shall not be placed before the form are re-inspected and found OK.

It shall also be checked during inspection that the form work, as erected, conforms to the line, grade,

alignment to the specified tolerance limits. Fully adequate rigidity of forms is of paramount importance

swice the tolerance limits specified are for the forms. Use of internal vibrators requires that the forms

be tight and strong.

5. Stability is a very important consideration in the construction of forms. Every one concerned

including the contractor shall be made to understand that the common deficiencies in form failure are:

I. inadequate crosses bracing of shores;

II. Inadequate horizontal bracing;

III. Failure to regulate the rate of placement of concrete in the forms;

IV. Poor regulation of the horizontal balance of the form filling;

V. abnormal displacements during and after concrete placement;

VI. No provision for lateral Pressures; and

VII. Lack of adequate inspection of form work;

In forms construction, it is very important that ready access be provided for proper placement,

working, and vibration, and for inspection of these operations.

128

6. The surface of form work shall be made such as to produce surface finishes as specified and the

joints shall be tight enough to prevent loss of liquid/slurry/mortar from concrete. Joints between the

form work and the previous lift shall be grant tight.

Horizontal construction joints:

7. A very common blemish on formed concrete surface is the off-set often found at horizontal

construction joints where the forms have given way a fraction of couple of centimeters at the bottom of

the new lift. For surfaces where appearance and alignment are of considerable importance, these off-

sets shall be prevented by so setting he forms as to fit snugly against the top of concrete in the previous

lift and the securing them so as to remain in tight contact during the concrete placing operations. The

anchoring shall be done by using an ample number of ties and bolts, above and within a few centimeters

of the construction joint. The ties in the top of previous lift cannot be relied on to prevent a slight

spreading of the forms at the joint. Forms shall overlap the hardened concrete in the lift previously

placed by not more than about 50mm though 25mm lap is considered sufficient. Utmost care shall,

thus, be taken by the contractor to ensure that the construction joints are smooth, free from sharp

deviations, projections, or edges.

Spelling from the face of concrete:

8. Occasionally, spilling may occur from the face of the concrete when forms are removed. This is

often caused by rough spots on the forms where mortar adheres strongly enough to overcome the tensile

strength of the green concrete. Such areas on the forms shall be cleaned, polished, and then covered

with suitable form oil. Wire brushing of timber forms shall be done very carefully to remove the set

mortar as else it may aggregate the situation.

Filling of bolt holes (she-bolts) or holes of ties/rods:

9. The holes left by left the concrete surface by she-bolts or rods etc. shall be reamed, cleaned, and

filled with “dry pack mortar” within a reasonable period of form work. Such filling shall be made

flush with the concrete surface.

Re-use of forms:

10. The forms required to be used more than once shall be maintained in a good condition and shall

be thoroughly cleaned and repaired (if required) before reuse. Where metal sheets are used for lining

the forms, the sheets shall be placed and maintained in the forms without lumps or other imperfections.

All forms shall be checked for proper shape, cleanliness, and strength before re-use.

Inspection of forms:

11. The contractor shall inform the Engineer-in-charge well in time before commencement of

placement of concrete “in the forms to enable him or his representative to ‘inspect the form work as to

its adequacy, suitability, alignment, strength, and overall fitness; and such inspection shall not relieve

the contractor of his sole responsibility for the safety of men, materials, equipment and the results

obtained.

129

Quality assurance:

10. Ok Card System shall be introduced. The format of ok card shall be determined by the

Engineer-in-charge and the contractor or his representative shall be required to fill in the first column of

ok card against all relevant items (as prescribed by the Engineer-in-charge) and sign to indicate that

these are in conformity with specifications. There after the engineer, authorized by the Engineer-in-

charge shall inspect these items and any defects pointed by him shall be duly rectified by him. Broadly,

the items shall comprise of:

Preparation of surface of forms, form oil applications;

Alignment, to tolerances;

Stability, bearing and support adequacy, ties, and spacers;

Inspection openings, size, spacing and locations;

Final clean-up; and

Final ok for concrete placement;

Stripping of form work:

13. The Engineer-in-charge shall be informed in advance by the contractor of his intention to

strike/remove any form. The forms shall not be removed until the concrete has achieved adequate

strength. As per IS:456-2000, the concrete should have achieved strength of at least twice the stress to

which the concrete may be subjected at the time of removal of form work. While this criteria of

strength shall be the guiding factor for removal of form work in normal circumstances, where ambient

temperature does not full below 150 c and where, ordinary Portland cement is used, and adequate during

is done, following striking period of forms be adopted, which shall satisfy the above criteria of strength

of concrete:

Type of form work Minimum period before striking

form work.

(a) Vertical form work to columns, walls, beams. 16-24 hours

(b) Soffit form work: to slabs (props to be refixed 3 days

immediately after-removal of form work)

(c) Soffit form work to beams (props to be refixed 7 days

immediately after removal of form work)

(d) Props to slabs:

(1)Spanning up to 4.5m 7 days

(2)Spanning over 4.5m 14 days

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(e) Props to beams and arches:

(1)Spanning up to 6.0m 14 days

(2)Spanning over 6.0m 21 days

For cements other than ORC and lower temperatures, the stripping time specified above; shall

be suitably modified by the ‘Engineer-in-charge. The contractor shall ensure and it is his responsibility

that the number of props left under, their sizes, and disposition shall be such as to be able to safety carry

the full dead load of the slab, beam, or arch, as the case may be, together with any’ live load likely to

occur during curing or further construction.

Forms shall be removed with care so as to avoid any damage to the concrete. Concrete

damages, if any due to removal of forms, shall be promptly repaired by the contractor as per method of

such repairs prescribed/directed by the Engineer-in-charge to his entire satisfaction.

131

Chapter – VII

STEEL REINFORCEMENT

GENERAL:

(a) This section covers specifications for providing steel reinforcement in bridges,

aqueducts, super passes, siphons, under tunnels, retaining walls, inlets, outlets, head walls,

regulators, off-take sluices, canal side walls, cut-off walls, spillways, and other similar concrete

structures.

(b) This work shall consists of furnishing and placing reinforcement of the shape, size/dimensions

shown on the drawings and as specified in the specifications, including cutting, bending, cleaning,

placing, binding/welding, and fixing in position. The steel reinforcement shall be arranged by the

contractor.

A list of applicable Indian Standards is furnished below:

IS 456-2000 Code of practice for plain and Reinforced concrete.

IS 1786 – 1985 Specifications for high strength deformed steel bars and wires for concrete

reinforcement.

IS 432 – 1982 Specifications for mild steel and medium steel bars for concrete (Part-I)

reinforcement and hard drawn steel wire.

IS 2502 – 1963 Code of practice for bending and fixing of bars for concrete reinforcement.

IS 9427 – 1989 Recommendations for welding cold worked bars for reinforced construction.

IS 814 – 1996 Electrodes for manual are welding of carbon and carbon manganese steel.

IS 1278 – 1972 Filler rods and wires and gas welding.

In addition to above IS codes, the specifications of Rajasthan PWD and Quality Control Manual

shall also be referred to wherever so required by the Engineer-in-charge.

MATERIAL

The contractor shall make his own arrangements to procure high yield strength deformed

(HYSD) bars to IS 1786– 1985, as shown on the drawings. Tested quality of steel reinforcement bars

shall be used. Requisite I.S.I. test certificates are to be provided to the Engineer-in-charge before use of

reinforcement on the work.

Steel bars shall be stored in such a way as to avoid distortion and to prevent deterioration by

corrosion.

The diameters and weight of steel bars shall be as following:

132

S.No. Diameter of bar Sectional weight in Kg. per running

Meter both for plain and HYSD steel bars.

1 6mm 0.22

2. 8mm 0.39

3. 10mm 0.62

4. 12mm 0.89

5. 14mm 1.21

6. 16mm 1.58

7. 18mm 2.00

8. 20mm 2.47

9. 22mm 2.98

10. 25mm 3.85

11. 28mm 4.83

12. 32mm 6.31

13. 33mm 6.71

14. 36mm 7.99

15. 40mm 8.96

16. 42mm 10.88

Note: If any steel bars other than those specified above are used, the weights shall be as per

standards steel tables.

Cutting, bending, and binding of reinforcement.

a) Reinforcement steel bars shall conform accurately to the dimensions given in the bar bending

schedules’ shown on relevant drawings.

b) Bars shall be bent cold to the specified shape and dimensions by a bar bender by hand or power

to attain the proper and specified radii of bends as shown in the drawings.

c) Bars shall not be bent or straightened in a manner that would injure, the material.

d) Bars bent during transport and handling shall be straightened before being used on work. The

bars shall not be hearted to facilitate bending.

e) Reinforcement bars available from any rejected reinforced concrete shall not be used.

f) The radii of the bends in the main reinforcement bars shall not be Jess than 4 times bar diameter

for plain mild steel bars or 6 bars diameters in deformed bars. The radii of bends for stirrups shall not

be less than twice the diameter of round bar. In the case of bars which are not round, and in the case of

deformed bars, the diameter shall be taken as the diameter of a circle having an equivalent effective

area.

g) Hooks/stirrups shall be suitably encased to prevent any splitting on concrete.

133

h) Where reinforcement bars are bent aside at construction joints and after wards bent back into

their original positions, care shall be taken to ensure that at no time is the radius of the bend less than 4

bars diameters for plain mild steel or 6 bar diameters for deformed bars. Care must also be taken when

bending back bars to ensure that the concrete around the bars is not damaged.

Placing of reinforcement.

a) Before the reinforcements placed, the surface of bars and the surfaces of any metal bar supports

shall be cleaned of rust, loose mill scale dirt, grease, and any other objectionable matter.

b) All reinforcement bars shall be accurately placed in exact position shown on the drawing, and

shall be securely held in position during placement of concrete by annealed bending wire, and by using

stays, blocks, or metal chairs, spacers, or other approved devices at sufficiently close intervals.

c) Wire for binding reinforcement shall be soft and annealed mild steel of 16 SWG and shall

conform to IS: 280 – 1978. Binding wire shall have tensile strength of not less than 5600 kg/cm2 and a

yield point of not less than 3850 kg/cm2

d) Bars shall not be allowed to sag between supports. These shall not be allowed to be displaced

during concerting or any other operation during the work.

e) The contractor must ensure that there is no disturbance caused to the reinforcing bars already

place in concrete.

f) All devices used for positioning of bars shall be of non-corrodible material. Metal supports shall

not extend to the surface of concrete, except where shown in the drawings. Pieces of broken stone, or

brick, or wooden blocks shall not be used.

g) Placing on layers of freshly laid concrete as work progress for adjusting of bar spacing shall not

be allowed.

h) Layers of bars shall be separated by spacer bars, precast concrete blocks or other approved

devices allowed by the Engineer-in-Charge.

i) Reinforcement bars after being placed in position shall be maintained in a clean condition until

completely embedded in concrete. Special care shall be taken to prevent any displacement of

reinforcement in concrete already placed.

j) It MUST BE ENSURED that CONCRETE COVER. as indicated in the drawings.

IS METICULOSLY PROVIDED.

All bars protruding from concrete and to which other bars are to be spliced, and which are likely

to be exposed for a long period, SHALL BE PROTECTED BY A THICK COAT OF NEAT CEMENT

GROUT.

134

k) Bar crossing each other, where required, shall be secured by binding wire (annealed) of size not

less than 1mm diameter and conforming to IS:280-1978 in such a manner that they do not slip over each

other at the time of fixing and concreting.

1) Minimum distance between individual bars.

As per IS:456-2000, the following shall apply for spacing of bars:

(A) The horizontal distance between two parallel main reinforcing bars shall usually be not

less than the greatest of the following:

(i) The diameter of the bar if the diameters are equal;

(ii) The diameter of the larger bar if the diameters are unequal;

(iii) 5mm more than the nominal maximum size of coarse aggregate.

Note: - The size of aggregate may be reduced around congested reinforcement to comply with

this provision.

(B) Greater horizontal distance than the minimum, specified in (A) above should be provided

wherever possible. However when needle vibrators are used, ‘the horizontal distance between bars of a

group may be reduced to two-thirds the nominal maximum size of coarse aggregate, Provided that

sufficient space is left between groups of bars to enable the vibrators to be immersed.

(C) Wherever, there are 2 or more rows of bars, the bars shall be vertically in lined and the

minimum vertical distance between the bars shall be 15mm’ or two-thirds the nominal maximum size

of aggregate, ‘or the maximum size of bars, whichever is greater’.

SPLICING.

(a) Where it is necessary to splice reinforcement: The splices shall be made by laping welding or by

mechanical couplings.

When permitted or specified on the drawings, joints of reinforcement bars shall be but welded

so as to transmit their full strength. Welding of bass shall be done as directed by the Engineer-in-

Charge and confirming to the requirements of clause 11.4 of IS: 456-1978, reproduced below:-

“Welded joints or mechanical connections in reinforcement may be used but in all cases of

important connections, tests shall be made to prove that the joints are of full strength of bars connected.

Welding of reinforcement shall be done in accordance with the recommendations of IS: 2751-

1966(Code of practice welding of mild steel bars used for reinforced concrete construction)”

If it is proposed to use welded splices in reinforcing bars, the equipment, the material, and all

welding testing procedures shall subject to the approval of Engineer-in-Charge. The contractor shall

also carry out test welds as required by the Engineer. No extra payment will be made for welding

reinforcement test welds:

135

For welded splices for reinforcing bars conforming to IS: 1786-1985 (High strength deformed

steel bars), welding shall be done in accordance with IS: 9427-1979. For the reinforcing bars

conforming to IS:432(Part-I)1982 (Mild steel/Medium steel), the welding shall be done accordance with

IS:2751-1979. The electrodes for manual are welding shall conform to IS:814(Part-I) 1974 and IS:814

(Part-II) 1974 mild steel filler rods for oxy acetylene welding shall conform to IS:1278-1972 provided

they are capable of giving a minimum but weld tensile strength of 42Kg. per mm square.

Electric arc welding shall be used. Ends of bars shall be cleaned of all rust, mill scale, grease, paint or

any other foreign matter before welding.

(b) Reinforcing bars of 28mm in diameter and larger may be connected by but welding provided

that the lapped devices will be permit if found to be more practical than but welding and if lapping does

not encroach on cover limitation or hinder concrete or reinforcement placement.

(c) Reinforcing bars of 25mm in diameter and less may be lapped or but welded whichever is

considered more practical by the Engineer-in-Charge.

Note:- Welded pieces of reinforcement shall be tested at the rate of 0.5% of the total number of joints

welded or as decided by the Engineer-in-Charge. Specimen shall be taken from the actual site of work.

Strength of weld provided shall be at least 25% higher than the strength of bar.

TOLERANCE ON PLACING OF REINFORCMENT:

Unless otherwise, specified by the Engineer-in-Charge, reinforcement shall be placed with in the

following tolerance (as per IS: 456-1978, clause 11.3):

(a) For effective depth 200mm or less. + 10mm

(b) For effective depth more than 200mm + 15mm

The cover shall in no case be reduced my more than one third of specified cover or 5mm which ever is

less

NOMINAL COVER TO REINCOFCEMENT:

(A) Nominal cover:

Nominal cover is the design depth of cover to all steel reinforcement including links. It is the

dimension used in design and indicated in the drawings. It shall not be less than the diameter of the bar.

For a longitudinal reinforcing bar in a column the nominal cover shall in any case of columns of

minimum dimension of 200mm or less, whose reinforcing bars do not exceed 12mm: a nominal cover

of 25mm may be used. For footings, minimum cover shall be 50mm.

The following table may be referred to for the concrete cover for reinforcement unless otherwise

specified.

1. Thin slabs and walls not less than diameter of bars- Min. 15mm.

2. (i) Beams sides Not less than diameter of bars- Min. 25mm

136

(ii) Beam top and bottom two time dia of bars- Min. 25mm

ends.

3. Columns Upto 200mrn sides Not less than diameter of bars Min.25mm -40mm

and minimum above 200 rnm sides

4. Footings Minimum 50mm

5. Foundations 40mm

6. Water retaining hydraulic Structures. 35mrn for concrete of grade M35 or more 40mm for

concrete grade less than M35

(B) Nominal cover to meet durability requirement:

The Engineer-in-Charge, in consultation with designs organization, tanking into due consideration the

conditions of exposure (as per clause 8.2.2.1, Table 3 of IS: 456-2000 may require the contractor to

providing the following minimum nominal covers of reinforcement to the concrete, as per clause 26.4.2.

Table 16 of IS:456-2000, from the durability consideration:

Nominal cover to Meet Durability Requirements.

Exposure Nominal concrete cover in mm not less than

Mild 20mm

Moderate 30mm

Severe 40mm

Very Serve 50mm

Extreme 75mm

Notes:

1. For main reinforcement up to 12mm dia bar, for mild exposure the nominal cover may be reduced by 5mm.

2. Unless otherwise specified, actual concrete cover should not deviate from the required nominal cover by + 100mm.

3. For exposure condition ‘severe’ and ‘very severe’ reduction of 5mm may be made where concrete grade in M35

and above.

Payment:

The Bid Rate in the bill of quantities for reinforcement includes cost of steel, binding wire of welding

material at site of work, its cutting, bending, cleaning, placing, binding/welding and fixing in position as

shown on the drawings and as directed by the Engineer-in-Charge. The unit rate shall also include cost

of all devices for keeping reinforcement in approved position, cost of jointing as per approved methods

and all wastage, overlaps, dowels, binding wire or welding material and spacers of bars and the cost of

all incidental operations necessary to complete the work as per specifications.

137

CHAPTER – VIII

DISMANTLING

11.1 REFERENCE

Standard specification; Building and Communications Department Government of Maharashtra 1972.

11.2 GENERAL

The items provides complete removal of the existing structures after dismantling except such portions

as my be required or permitted to be left in place as shown on the drawing or as directed by the 11,4.2

Engineer-in-Chief, clearing the site sorting out useful material and stacking them neatly with in the

specified distance and disposing of the non-serviceable material as directed by the Engineer-in-Chief.

11.3 PRELIMINARIES

11.3.1 Where necessary and if so directed by the Engineer-in-Charge screens of canvas or other suitable

materials shall be erected and / or the structure and the area shall be watered to avoid the nuisance of the

dust before and during dismantling. Care shall be taken to see that the dismantling is done in jll.4.4 such

a sequence and manner as to prevent alt avoidable damage to usable materials and any damage to

nearby property or injury life.

11.3.2 The dismantling shall always plan before hand and shall be done in reverse order of the one in

which structure was constructed. The scheme shall be got approved from the ‘Engineer-in-Chief before

starting the work.

In case of structure, which is to be removed for re-erection, all members shall be properly match -

marked with paint. The pins, nuts, plates, structural steel member, timber etc. shall be similarly marked

for identification of the position in the entire assembly. All machine surfaces, pinholes, pins etc. shall be

quoted with grease.

4 In case of fixing done by nails, screws, bolts, rivets etc. dismantling shall be done by taking tools and

not be tearing or ripping off.

Necessary propping, shoring and / or under pining shall be provided for tlie safety of the adjoining work

or property before dismantling is taken up and the work shall be carried out in such a way that no

damage is caused to the adjoining work or property.

An inventory of all possible serviceable materials shall be prepared. This record shall be kept for proper

control during execution of work. Portion required to be retained shall be marked before starting

dismantling.

Where show required, for diverting the traffic, adequate barriers with watchman and / or lights at the

end of portion of the road required to be closed if any, shall be constructed and maintained during

dismantling operations.

A register shall be kept at the work site in which day to day account of the turnout and the salvaged

materials shall be maintained. This register shall also show whether dismantled material slacked or

wasted.

11.4 D1SMANTLING AND REMOVAL

138

The structure shall be dismantle carefully and the materials removed without causing damage to the

serviceable materials to be salvaged, the part of structure to be retained and any properties structures

nearby.

Unless otherwise specified, the structures shall be removed up to 45 cm. below the ground level and the

portion which enters fears in any way with the new constructions shall be removed entirely.

Where existing structure is to be extended or otherwise incorporated in the new work, only such part or

parts of the existing structures shall be removed as are necessary to provide a proper connection to the

new work. The connecting edges shall be cuts, chipped and trimmed to the required lines arid grades

without weakening or damaging the part of structure to be retained.

Blasting, if required may be restored to with the written permission of the Engineer-in-charge. All

blasting operation shall be finalization before the new construction is commenced.

Equipment or methods which might damage members, portion of the structure to be preserved or

adjacent construction or structure shall not be used.

If sewer or drains are removed or disturbed the foul matter shall at once be removed. If sewers, drains

or electric line have to be temporarily removed, a temporary passage for flow shall be provided till

sewer, drains or electric lines are restored.

DISPOSAL

All the materials obtained from the removal of the structure shall be property of Government.

Serviceable materials shall be stacked neatly in such a manner as to avoid deterioration and in place

directed by the Engineer-in-Charge within a specified lead. Different category of materials shall be

stacked separately.

Unless otherwise provided, excavated material shall be used in back filling the expression made in

reviewing the structure in leveling ground or otherwise disposed of as directed with in specified lead.

Non-serviceable materials shall be disposed of without causing any damage or inconvenience.

11.6 FINAL CLEARANCE

All rubbish shall be cleared off the side and the ground left clean and clear.

139

SECTION 6: DRAWING

(Separate Volume-II)

140

DRAWINGS

S. No.

Name of drawing Remarks

1 Line diagram –

2 L-section of dam -

3 Cross-section -

4 Cross Section of Canals

5 L-sections –

6 Typical Drawing – Lining

7 Drawing of Measuring Device

141

SECTION 7: BILL OF QUANTITIES

145

Bill of Quantity



No. Description of Item

Quantity

Unit Rate Quoted by contractor

in figure in word Amount

1 2 3 4 5 6 7

1

Excavation in all types of soils, hard moorum and moorum with boulders, including wet excavation, all leads, lifts, shoring, shuttering etc Clearance of working area, involving removal of grass shrubs, crops bushes and twinges, includes routing out complete, utilization of useful excavated material on canal bank raising embankment or disposal of excavated material in specified dumping zones as per drawings and specification and as directed by Engineer-in-charge.

110385.758 Cum

2

Upgrading of service road of canal bank, including Collection, transportation, stacking and boxing, spreading of hard moorum, dressing, watering and consolidation by DRR or sismopactors with all leads, lifts and cost of all materials, labour, equipment etc. complete in all respect as per specification, drawing & as directed by Engineer-in-charge.

14301.216 Cum

3

Filling foundation and around masonry works with hard soil or soft moorum including watering and ramming including all lead and lift and cost all material labour equipment etc complete specification as per design drawing & as Directed by Engineer -In charge

324.180 Cum

4

Filling foundation and around masonry works with quarried boulders & moorum with watering and ramming including watering and ramming including all lead and lift and cost all material labour equipment etc complete specification as per design drawing & as Directed by Engineer -In charge

1978.240 Cum

5

Providing & placing 1:2:4cement concrete with graded B.T Metal of max size 20 mm including mechanical mixing placing in position vibration curing cleaning form work up to required thickness with all lead & lift & cost of all material labour equipment etc complete with specification as per design drawing & as Directed by Engineer -In charge

529.145 Cum

6

Providing & placing 1:3:6 cement concrete with graded B.T Metal of max size 40 mm including mechanical mixing placing in position vibration curing cleaning form work up to required thickness with all lead & lift & cost of all material labour equipment etc complete with specification as per design drawing & as Directed by Engineer -In charge

652.753 Cum

7

Providing & placing 1:3:6 cement concrete with graded B.T Metal of max size 20 mm including mechanical mixing placing in position vibration curing cleaning form work up to required thickness with all lead & lift & cost of all material labour equipment etc complete with specification as per design drawing & as Directed by Engineer -In charge

1586.299 Cum

146

No. Description of Item Quantity Unit Rate Quoted by contractor


1 2 3 4 5 6 7

8

Hammer dressed coursed rubble masonry in superstructure in (c) Cement mortar 1:4 in super structure mixing of mortar with mechanical mixer scaffolding curing cleaning etc complete with all lead and lift in cost of all material labour equipment etc as per specification and drawing and as per design drawing & as Directed by Engineer -In charge

164.809 Cum

9

Hammer dressed coursed rubble masonry in superstructure in ( c) Cement mortar 1:6 foundation and super structure mixing of mortar with mechanical mixer scaffolding curing cleaning etc complete with all lead and lift in cost of all material labour equipment etc as per specification and drawing and as per design drawing & as Directed by Engineer -In charge

133.292 Cum

10

20 mm thick grouted stone pitching (without quarry spalls ) with individual stones of 22 cm depth and minimum size 0.014 cum in cement mortar 1:6 mixing of mortar with mechanical mixer scaffolding curing cleaning etc complete with all lead and lift in cost of all material labour equipment etc as per specification and drawing and as per design drawing & as Directed by Engineer -In charge

45.262 Cum

11

20 mm thick cement plaster on stone work in Cm 1:3 including raking of old plaster mixing of mortar with mechanical mixer scaffolding curing cleaning etc complete with all lead and lift in cost of all material labour equipment etc as per specification and drawing and as per design drawing & as Directed by Engineer -In charge

1077.705 Sqm

12

Pointing on stone work with cement mortar 1:3 flush pointing on exposed surface including raking joint of old pointing mixing of mortar with mechanical mixer scaffolding curing cleaning etc complete with all lead and lift in cost of all material labour equipment etc as per specification and drawing and as per design drawing & as Directed by Engineer -In charge

1666.240 Sqm

13

Supplying and fixing steel reinforcement bars (tested ) for R.C.C including cleaning straightening cutting bending all handling placing in position and binding with 0.9 mm annealed binding wire confirming to IS 280 (including cost of binding wire) (a) Mild steel bar confirming to grade 1 of IS : 432 part -1 with all lead and lift and cost of all material etc complete as per specification and drawing and as per design drawing & as Directed by Engineer -In charge

18171.360 Kg.

14

Providing and placing in position M-15 R.C.C excluding cost of reinforcement but including form work vibration finishing curing and cleaning etc. complete with graded metal of maximum size 20 mm including cost of all material all lead and lift etc complete specification and drawing and as per design drawing & as Directed by Engineer -In charge

32.420 Cum

147



1 2 3 4 5 6 7

15

Dismantling lime concrete of cement concrete in foundation or under floors haunches or arches or terrace. Floor and super structure stone masonry in lime or cement mortar including all lead and lift labour equipment etc complete and material disposed as per specification and drawing & as Directed by Engineer -In charge

413.275 Cum

16

Raking out old pointing in lime or cement mortar of any mix (from stone masonry ) with all lead and lift labour equipment as per specification and drawing and as per design drawing & as Directed by Engineer -In charge

698.795 Sqm

17

Construction of dowels 30 cm wide on top and 30 cm in height (1:5:1 side slopes ) on the canal banks including excavation with all lead and lifts labour equipment etc complete with dressing as per drawing & specification and As Directed By Engineer -In Charge

25615.600 RM.

18

Providing and placing in position pours cement (1cement 4 metal of maxi. size 40 mm.)drains including all lead & lift shuttering .curing ,cleaning ,.& labour equipments & cost of material complete in all respect As per specification & drawing & As Directed By Engineer -In Charge

15.794 Cum

19

providing and laying in position cement concrete with graded metal of 20 mm for coping over walls laid in alternate panels of 1.5 m including form work tamping vibration curing finishing cleaning etc complete including all lead and lifts cost of material labour equipment etc complete as per specification and drawing and As Directed by Engineer -In charge

360.393 Cum

20

Providing and Fixing in position NP 2 Hume pipe for bridge and canal structure including handling toeing filling the joints with filler material and cement motor 1:3 curing etc complete. with all leads and lifts including cost of all materials, labour, equipments etc. complete in all respect as per drawing specification and as directed by Engineer in Charge

(A) 600 mm diameter

5.000 RM

(B) 750 mm diameter

67.500 RM

( C) 1200 mm diameter

35.000 RM

148



1 2 3 4 5 6 7

21

Excavation in different types of soils, hard moorum, moorum with boulder and rocks in canal bed and side slopes for lining, sleepers, coping and under drainage arrangements including wet excavation below sub soil water level with dressing to the profile including clearance of working area removal of grass, shrubs, crops and twinges complete utilization of excavated material on canal banks, embankment or disposal of excavated material in specified dumping zone, with all leads and lifts including cost of all materials, labour, equipments etc. complete in all respect as per drawing specification and as directed by Engineer in Charge

77878.120 Cum

22

Tamping in canal bed and side including saturation up to 30 cm depth for preparation of earthen sub grade before laying in situ cement concrete lining with all lead & lift and cost of all material labour equipments etc complete as per specification drawing and as Directed by Engineer in charge

81067.070 Sqm.

23

Providing and laying of CNS materials having CNS properties including collection, stacking and boxing, spreading in bed & side slopes in 15 cm layers up to specified depth with watering and compaction at OMC to dry density not below than 90% including all lead and lifts of all materials etc. compete as per specification, drawing & as directed by Engineer-in-charge.

77882.780 Cum

24

Providing and laying filter material for drain below C.C. lining consisting of sand and gravels of nominal size 10 mm 20 mm 40mm including all lead lift and cost of all material labour equipment etc complete in all respect as per drawing and specification and as directed by Engineer in Charge

4067.620 Cum

25

Providing and placing in position cement concrete 1;2:4 with 20 mm graded stone ballast for in situ sleepers Canal bed & side slope including form work vibration finishing curing cleaning with all lead & lift and cost of all material labour equipment etc complete as per drawing specification and as directed by Engineer in Charge

877.280 Cum

26

Providing and placing in position M-15 cement concrete 1;2;4 with 20 mm graded B T stone ballast for in situ lining in canal bed & side slope including form work for laying in panels vibration finishing making grooves as per IS 3873 finishing curing for 28 days cleaning etc complete . as per drawing and specification and Directed by Engineer -In- Charge

6296.060 Cum

27

Filling contraction joints (grooves ) as per IS 3873 with hot applied sealing compound IS 5256 including cleaning and washing grooves painting its inner surface with primer IS 3384 at the rate of 1 liter per 4 sqm inclusive of cost of all materials labour and equipments etc complete for in situ concrete lining Grooves of 17 mm depth as per drawing and specification and Directed by Engineer -In- Charge

34226.750 RM

149



1 2 3 4 5 6 7

27

Filling contraction joints (grooves ) as per IS 3873 with hot applied sealing compound IS 5256 including cleaning and washing grooves painting its inner surface with primer IS 3384 at the rate of 1 liter per 4 sqm inclusive of cost of all materials labour and equipments etc complete for in situ concrete lining Grooves of 17 mm depth as per drawing and specification and Directed by Engineer -In- Charge

34226.750 RM

28

Providing plain cement concrete lining of M-15 grade (1:2:4 with paver machine in bed side slope and curvature including batching maxing transporting placing vibration inserting PVC stripes at joints smooth finishing curing (PVC strips payable separately ) including all leads & lifts cost of all materials and labour equipment etc complete in canal bed side slope as per drawing and specification and Directed by Engineer -In- Charge

12103.793 Cum

29

Mechanical trimming of canal section for preparing sub grade for laying concrete lining in all type of soil and moorum and back filling the over excavated rock section if any with lean concrete including watering and compacting bed and side slopes using slope compactors to form a line levels and grade and dewatering wherever required with all leads, lifts and cost of all material, labour and equipments etc complete, as per drawing, specification and as directed by Engineer-in-charge.

193624.180 Sqm

30

Providing and fixing in position PVC strips in panels joint @ 5 m interval in lining work using mechanical contrivance smooth finishing including all lead and lift and cost of all material labour equipment etc complete as per drawing and specification and Directed by Engineer -In- Charge

38874.400 RM

31

Erection of water tight structural steel sliding type low head gate for dam head sluice and canals with gate leaf and frame as per IS 5620 complete with brass/stainless steel lining of appropriate size for seal seats and sill and seals of rubber /metal guides hoisting rod screw hoist and duly painted as per UCSR item No. 1854 as per drawing and specification and as Directed by Engineer -In- Charge

24.900 Tonne

32

Providing and fixing A.C Pipe with grating for weep holes in abutment wing walls and return walls 100 mm diameter including all lead & lift and cost of all material, labour and equipments etc complete, as per drawing, specification and as directed by Engineer-in-charge.

34.500 RM

1. Item for which no rate of price has been entered in bill not be paid by the employer when executive and shall be deemed

covered by the other rate and prices in the Bill of quantities, refer ITB clause 13.2 and GCC Claus 43.3 2. Unit rate and prices shall be quoted by the bidder in the Indian rupees (ITB clause 14.1) 3. Where there is discrepancy between the rate in the figure and words, the rate in words will govern (ITB clause 27.1 (a)) 4. Where there is discrepancy between the unit rate and the line item total resulting from multiplying the unit rate by quantities,

the unit rate quoted shall be Govern (ITB clause 27.1(b))

Signature of Bidder

150

SECTION 8: FORMS OF SECURITIES

152

Forms of Securities

Acceptable forms of securities are annexed. Bidders should not complete the Performance and

Advance Payment Security forms at this time. Only the successful Bidder will be required to

provide Performance and Advance Payment Securities in accordance with one of the forms, or in a

similar form acceptable to the Employer.

Annex A: Bid Security (Bank Guarantee)

Annex B: Performance Bank Guarantee

Annex B1: Performance bank guarantee (for unbalanced items)

Annex C: Deleted

Annex D: Bank Guarantee for Advance Payment

153

Annex A

BID SECURITY (BANK GUARANTEE)

WHEREAS, ……………………………………………………….. [name of Bidder] (hereinafter called "the Bidder")

has submitted his Bid dated …………………. [date] for the construction of BALANCE WORK OF


PROJECT VIDISHA (Phase II) Vidisha District [name of Contract] (hereinafter called "the Bid"). Know all

people by these presents that We …………………………..…….[name of bank] of ……………………………. [name

of country] having our registered office at ……………..…………………………………….(hereinafter called "the

Bank") are bound in to The Executive Engineer, Bahaya Vitta Poshit Pariyojna, SWaRA Bhawan

Link Road no-3, Water Resources Department, Bhopal (M. P.) in the sum of 1……………………………………………………… for which payment well and truly to be made to the said Employer

the Bank binds itself, his successors and assigns by these presents.

SEALED with the Common Seal of the said Bank this _________ day of __________ 2014____.

THE CONDITIONS of this obligation are:

(1) If after Bid opening the Bidder withdraws his bid during the period of Bid validity specified in the Form of Bid;

or

(2) If the Bidder having been notified of the acceptance of his bid by the Employer during the period of Bid validity:

(a) fails or refuses to execute the Form of Agreement in accordance with the Instructions to Bidders, if

required; or

(b) fails or refuses to furnish the Performance Security, in accordance with the Instruction to Bidders; or

(c) does not accept the correction of the Bid Price pursuant to Clause 27;

we undertake to pay to the Employer up to the above amount upon receipt of his first written demand, without the

Employer having to substantiate his demand, provided that in his demand the Employer will note that the amount claimed

by him is due to him owing to the occurrence of one or any of the three conditions, specifying the occurred condition or

conditions.

This Guarantee will remain in force up to and including the date 2

….. days after the deadline for submission of Bids as

such deadline is stated in the Instructions to Bidders or as it may be extended by the Employer, notice of which

extension(s) to the Bank is hereby waived. Any demand in respect of this guarantee should reach the Bank not later than

the above date.

DATE _______________ SIGNATURE OF THE BANK _________________________

WITNESS ____________ SEAL _______________________________________

_________________________________________________________________

[signature, name, and address]

1 The Bidder should insert the amount of the guarantee in words and figures denominated in Indian Rupees. This figure should be the same as

shown in Clause 16.1 of the Instructions to Bidders.

2 45 days after the end of the validity period of the Bid.

154

PERFORMANCE BANK GUARANTEE

To:

The Executive Engineer

SAS Division no-2 ,

Vidisha (M.P.)

WHEREAS ……………………………………………………….. ……………….[name and address of Contractor]

(hereinafter called "the Contractor") has undertaken, in pursuance of Contract No. ………..dated ……………to execute


OF D2 & D3 L B C OF SAMRAT ASHOK SAGAR PROJECT VIDISHA (Phase II) in Vidisha District [name of Contract and brief description of Works] (hereinafter called "the Contract");

AND WHEREAS it has been stipulated by you in the said Contract that the Contractor shall furnish you with a Bank

Guarantee by a recognized bank for the sum specified therein as security for compliance with his obligations in

accordance with the Contract;

ND WHEREAS we have agreed to give the Contractor such a Bank Guarantee;

NOW THEREFORE we hereby affirm that we are the Guarantor and responsible to you, on behalf of the Contractor, up

to a total of ……………….……..[amount of guarantee] 1……..…………….………………………………[in words],

such sum being payable in the types and proportions of currencies in which the Contract Price is payable, and we

undertake to pay you, upon your first written demand and without cavil or argument, any sum or sums within the limits of

……………………….. [amount of guarantee]1 as aforesaid without your needing to prove or to show grounds or

reasons for your demand for the sum specified therein.

We hereby waive the necessity of your demanding the said debt from the Contractor before presenting us with the

demand.

We further agree that no change or addition to or other modification of the terms of the Contract or of the Works to be

performed there under or of any of the Contract documents which may be made between you and the Contractor shall in

any way release us from any liability under this guarantee, and we hereby waive notice of any such change, addition or

modification.

This guarantee shall be valid until …………… (i.e.) 28 days from the date of expiry of the Defects Liability Period.

Signature and seal of the guarantor _____________________________

Name of Bank ____________________________________________

Address ____________________________________________

Date ____________________________________________

__________________

1 An amount shall be inserted by the Guarantor, representing the percentage of the Contract Price specified in the Contract and

denominated in Indian Rupees.

155

PERFORMANCE BANK GUARANTEE (for unbalanced items)

To: ______________________________________________ [name of Employer]

_________________________________________ [address of Employer]

WHEREAS _________________________ [name and address of Contractor] (hereinafter called "the

Contractor") has undertaken, in pursuance of Contract No. _____ dated ________________ to execute

__________________________ [name of Contract and brief description of Works] (hereinafter called "the

Contract");

AND WHEREAS it has been stipulated by you in the said Contract that the Contractor shall furnish you

with a Bank Guarantee by a recognized bank for the sum specified therein as security for compliance with

his obligations in accordance with the Contract;

AND WHEREAS we have agreed to give the Contractor such a Bank Guarantee;

NOW THEREFORE we hereby affirm that we are the Guarantor and responsible to you, on behalf of the

Contractor, up to a total of ____________________ [amount of guarantee] 1___________________________ [in words], such sum being payable in the types and proportions of

currencies in which the Contract Price is payable, and we undertake to pay you, upon your first written

demand and without cavil or argument, any sum or sums within the limits of ____________________

[amount of guarantee]1 as aforesaid without your needing to prove or to show grounds or reasons for your

demand for the sum specified therein.

We hereby waive the necessity of your demanding the said debt from the Contractor before presenting us

with the demand.

We further agree that no change or addition to or other modification of the terms of the Contract or of the

Works to be performed there under or of any of the Contract documents which may be made between you

and the Contractor shall in any way release us from any liability under this guarantee, and we hereby waive

notice of any such change, addition or modification.

This guarantee shall be valid until …….. (i.e.) 28 days from the date of issue of the certificate of completion

of works.

Signature and seal of the guarantor _____________________________

Name of Bank ____________________________________________

Address ____________________________________________

Date ____________________________________________

__________________

1 An amount shall be inserted by the Guarantor, representing additional security for unbalanced Bids,

if any and denominated in Indian Rupees.

156

BANK GUARANTEE FOR ADVANCE PAYMENT

To:

The Executive Engineer

SAS Division no-2,

Vidisha (M.P.)


OF D2 & D3 L B C OF SAMRAT ASHOK SAGAR PROJECT VIDISHA (Phase II) in Vidisha District [name of Contract]

Gentlemen:

In accordance with the provisions of the Conditions of Contract, sub clause 51.1 ("Advance Payment") of the above-

mentioned Contract, ________________________________ [name and address of Contractor] (hereinafter called "the

Contractor") shall deposit with ________________________ [name of Employer] a bank guarantee to guarantee his

proper and faithful performance under the said Clause of the Contract in an amount of _____________ [amount of

guarantee] 1_________________________________ [in words].

We, the ____________________ [bank or financial institution], as instructed by the Contractor, agree unconditionally

and irrevocably to guarantee as primary obligator and not as Surety merely, the payment to Executive Engineer, SAS

Division no-2 , Vidisha (M.P.) on his first demand without whatsoever right of objection on our part and without his

first claim to the Contractor, in the amount not exceeding ____________________ [amount of guarantee]1

__________________________________ [in words].

We further agree that no change or addition to or other modification of the terms of the Contract or of Works to be

performed there under or of any of the Contract documents which may be made between Executive Engineer, SAS

Division no-2 , Vidisha (M.P.) and the Contractor, shall in any way release us from any liability under this guarantee,

and we hereby waive notice of any such change, addition or modification.

This guarantee shall remain valid and in full effect from the date of the advance payment under the Contract until

Executive Engineer, SAS Division no-2 , Vidisha (M.P.) receives full repayment of the same amount from the

Contractor.

Yours truly,

Signature and seal: _______________________________

Name of Bank/Financial Institution: _________________

Address: _______________________________________

Date: ____________________

__________________

1 An amount shall be inserted by the bank representing the amount of the Advance Payment, and denominated in Indian Rupees