job methodology)

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Lift Irrigation Project

Construction Methodology

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JOB PROCEDURE INDEX

Sl. No. Description

01 piling Work

02Excavation Work

03 WBM

04 Site Grading Work

5 Survey Work

6 Back Filling Work

7 Sand Filling Work

8 Plain Cement Concrete

9 Reinforced Cement Concrete

10 Brick Work

JOB PROCEDURE FOR PILING WORK





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1.0 PURPOSE

The purpose of this Procedure is to ensure that a standard construction

and workmanship can be achieved up to the satisfaction of

client/consultant.

2.0 SCOPE

This procedure is applicable to the execution of piling work. It intends

to correlate and control all the tasks needed to be done in order to get

a satisfactory product. In brief, it controls the following activities:

2.1. PILING

2.1.1 Setting up of piling location.

2.1.2 Preparation of bentonite slurry.

2.1.3 Fabrication of reinforcement cage.

2.1.4 Installation of temporary casing.

2.1.5 Boring.

2.1.6 Lowering of reinforcement cage.

2.1.7 Cleaning of bore.

2.1.8 Concreting.

2.1.9 Withdrawal of temporary casing.

3.0 REFERENCES/IS codes

1. Contract Specifications./Technical requirement2. Approved for Construction Drawings.3. IS: 2911 (Part 1/Section 2) ± Code of practice for design and

construction of pile foundations.4. IS: 2911 (Part 4) - Code of practice for design and construction of

pile foundations - Load test on pile.5. IS: 2502 ± Code of practice for bending and fixing of bars for concrete

reinforcement.6. IS: 456 - Code of practice for plain and reinforced concrete.7. IS: 10262 ± Recommended guidelines for concrete mix design.8. IS: 2386 (Part I to VIII) ± Methods of tests for aggregates for

concrete.

9. IS: 383 ± Specification for Coarse and fine aggregates from naturalsources for concrete.





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10. IS: 516 - Methods of tests for strength of concrete.

4.0 METHODOLOGY

4.1 PILING

General

The purpose of this method is to describe the construction of bored

pile with temporary collar casing followed by stabilization of the bore-

hole by bentonite suspension.

The working sequence is as follows:

4.1.1 Setting up of piling location

The work shall be carried out in accordance with the drawingsapproved by the client/ consultant for construction.

The surveyor shall check all reference points before starting the

survey work.

The survey work shall be carried out from whole-to-the-part

method as far as possible.

Only calibrated and approved instruments shall be used.

The pile locations shall be set out accurately using suitable

surveying techniques and clearly marked using steel pins. All

points shall be firmly fixed and guarded against any disturbance

Reference points shall be established for each pile point, preferably

equidistant from the pile point, to facilitate identification of the pile

points at the time of execution as well as to check the installation

of the casing.

Care shall be taken to identify all utilities that may obstruct

execution of work.

4.1.2 Preparation of bentonite slurry

Position of the tank shall be finalized keeping in view the capacityof the installed pump and the distance between the tank and thepiling location.

Capacity of the tank shall be such that it can store sufficient

quantity of slurry for the number of piles that can be done in a day.





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Depth of the tank shall be such that if required a person can standand work in the tank when it is full.

Bentonite slurry shall be prepared using bentonite mixer or

bentonite pump. Care shall be taken to maintain the required consistency of

bentonite slurry in the tank.

The concreting operation should not be taken up when the specific

gravity of the bottom slurry is more than 1.2.

Where bentonite suspension is used to maintain the stability of the

bore hole, its essential that the properties of the materials be

carefully controlled at stages of mixing, supply to the bore hole and

immediately before concrete is laid. The density of Bentonite

suspension is 1.05 gm/cc.

4.1.3 Fabrication of reinforcement cage

Reinforcement bars shall be stored carefully on a raised platform so

as to prevent contact with soil.

Reinforcement fabrication shall be carried out as per approved

drawing.

If the length of the entire cage is more than the boom length of the

crane/winch or the basic length of individual reinforcement bars,

the cage shall be fabricated in parts.

Cage shall be fabricated firmly, using binding wire and tack welded

as per drawing.

Cover blocks of required size shall be provided.

4.1.4 Installation of temporary casing

The Tripod shall be brought to the pile location and properly aligned

to the pile point, adjusting the tripod legs.

Pile point may be confirmed by lowering the bailer on the ground

covered with thin layer of sand from a height to get the impression.

A single wall casing of suitable length shall be driven through

keeping the top edge 20Cm above ground level.





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4.1.5 Boring

After installation of the casing, excavation shall be carried out by

bailer.

The bore-hole shall be kept filled up with bentonite slurry

throughout the process of boring.

During the boring operation the fluid level inside the hole has to be

kept about 1 M to 1.5 M above the ground water level.

4.1.6 Lowering of reinforcement cage

The cage in single length shall be handled with crane/winch.

The cage will then be lowered gradually with utmost precautions.

4.1.7 Lowering of tremie pipe

Tremie lowering shall be taken up after cage lowering is over.

Total length of tremie pipes shall be such that on lowering, the

bottom of the pipe shall be above the founding level.

The tremie pipes shall be internally free of any old and hardened

concrete.

O-rings shall be inserted to the joints of the tremie pipes to ensure

adequate water-tightness.

The tremie-joints shall be properly lubricated with grease.

The tremie shall be suspended with a tremie-fork from the top of

the casing.

A tremie-head shall be fixed with the tremie at the top.

4.1.8 C oncreting

4.1.8.1 Approved cement, aggregate, water and admixture shall

be used. Concreting will be done by batching plant or

tilting type pan mixer at site.





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4.1.8.2 Approved Concrete Design Mix shall be used in

accordance with IS-10262 & SP-23.

4.1.8.3 Minimum cement content & maximum water cement ratio

is as per most specification (Clause no. 1703-1) for

different grade of concrete.

B Concrete mixing, transporting and placing.

Concrete shall be transported by means of transit mixers, when

concreting will be done by batching plant and placed as near as

practicable to its final position. So that no contamination

segregation or loss of its constituents material take place or when

concreting will be done by mixer machine, concreting shall only

commence when sufficient number of mixer machines are available

at site in running condition. Other arrangements for concreting,

i.e., supply of water, electricity, ingredients for concrete must be

ensured to be satisfactory.

The tremie should be large enough with due regard to the size of

the aggregate. For 20mm aggregate the tremie pipe should be of

diameter not less than 150 mm. Aggregates of size more than 20

mm shall not be used.

The tremie head shall be removed from the tremie assembly and

the concrete hopper of adequate capacity shall be fixed to the

tremie pipes. The hopper and the tremie should be a closed system

through which water cannot pass.

After filling up the hopper with the first charge of concrete, it will

be ensured that the concrete passes through the tremie

uninterruptedly, forcing the bentonite slurry out of the tremie

pipes.

The next and the subsequent charges of concrete shall then be poured in thehopper and the concreting shall be carried out with small jerks so as tofacilitate the flow of concrete and simultaneous compaction. The tremie pipes

shall be





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gradually removed one by one, ensuring that it shall always

penetrate well into the concrete with an adequate margin of safety

against accidental withdrawal of the pipe. Normally, the tremie

shall be inserted into the concrete for at least a length of 1 M at

any stage of the operation.

Throughout the concreting operation, the slump of concrete shall

be checked at intervals to ensure proper slump in order to avoid

choking of tremie.

All tremie pipes shall be scrupulously cleaned after use.

Displaced bentonite from the bore shall be collected back into the

bentonite tank,

where it shall be descended and made re-usable.

The top of concrete in a pile shall be brought above the cut-off level

to permit removal of all laitance and weak concrete before capping

and to ensure good concrete at the cut-off level for proper

embedment into the pile cap.

4.1.9 Withdrawal of temporary casing

Once the concreting is finished the withdrawal of temporary casing

shall commence.

The casing shall be withdrawn with winch.

4.2 Sampling & Testing :

The Minimum frequency of sampling of concrete of each grade shall

be in accordance as below:

Quantity of Concrete in

work, M3 No of Samples

1-5 1

6-15 2

16-30 3

31-50 4

51 & above4 + one additional sample for each additional 5m3 or part there of.





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Three test specimens shall be made as per sampling plan of concrete fortesting at 28 days. Additional cubes may be required for various purposessuch as to determine the strength of concrete at 7 days. The test strength of

sample shall be the average of the strength of three cubes.

Job Procedure for Excavation

PURPOSE

THE PURPOSE OF THIS PROCEDURE IS FOR SUPERVISION OF ALLEXCAVATION WORKS AND TO ENSURE THAT PROPER QUALITY CONTROL IS EXERCISED AT SITE.

SCOPE:

THIS PROCEDURE COVERS SUPERVISION AND METHODS OF RECORD

KEEPING FOR ALL EXCAVATION WORKS.





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REFERENCE DOCUMENTS: SPECIFICATIONS: AS PER OF TENDER DOCUMENT.

PROCEDURE:

1. LAYOUT PLAN ALONG WITH SURVEY SCHEME OF SURVEY PILLARS SHALL BE SUBMITTED

TO EIL FOR CHECKING. THE CONTRACTOR FOR THE PROTECTION OF MAIN

SURVEY PILLARS SHALL MAKE NECESSARY ARRANGEMENTS.2. CLASSIFICATION OF SOIL SHALL BE CARRIED OUT AS PER ANNEXURE ±E OF TENDER

DOCUMENT EXCAVATION SHALL BE DONE AS PER DRAWING AND AS DIRECTED BY

ENGINEER-IN-CHARGE.

3. NECESSARY CHECK FOR SUB SOIL WATER AND DEWATERING ARRANGEMENTS TO BE

MADE. ARRANGEMENT FOR SHORING AND STRUTTING SHALL BE MADE IF REQUIRED.4. EXCAVATED LEVEL AND SIZE OF EXCAVATION SHALL BE CHECKED AS PER DRAWING.

6. IN CASE OF CONFLICT BETWEEN PROCEDURE AND SPECIFICATION,SPECIFICATION SHALL SUPERSEDE PROCEDURE.

JOB PROCEDURE FOR WBM

01 PURPOSEThe purpose of the procedure is for supervision of all WBM works& to ensure that proper quality control is exercised at site.

02 SCOPEThis procedure covers supervision & method of record keeping forall WBM works.

03 REFERENCE DOCUMENTS : Specifications : As perTender Document.





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04 PROCEDUREi) Before starting of work, source of coarse aggregate, screening

materials & binding materials shall be identified & shall beapproved by Engineer - in - Charge

ii) Subgrade will be prepared as per AFC drawings.

iii)Gradation & Physical requirements of materials shall be as perspecification.

iv)Then the aggregate shall be spread by layer as perAFC Drawing.

v) After spreading the aggregate, t

he same

has to be rolled toensure a finish surface.

vi) After the Coarse aggregate has been rolled, screening materialsshall be applied uniformly and gradually over the surface tocompletely fill the interstices. Then the dry rolling shall be carriedout. After completion of dry rolling, the surface shall be

vii) After the application of screenings, the Binding materials shall beapplied at a uniform & slow rate and the surface shall be copiouslysprinkled with water and shall be swept so as to fill the voidsproperly.

viii) Before laying the subsequent layer of WBM, the surface shall bescarified and reshaped to get the required camber & profile.

ix) In case of conflict between procedure and specification,specification shall supersede procedure.





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JOB PROCEDURE FOR SITE GRADING

PURPOSE

The scope of this job procedure is to provide approved, predetermined & controlled methodology for execution of various earth work activities insite grading

SCOPE

The procedure deals with the Earth work in excavation & filling for

embankments etc. This also gives a guideline regarding record keeping.

REFERENCE DOCUMENTS As per tender document.

PROCEDURE





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Before starting the Earth work in excavation or filling, the area will besurveyed. After completing the checking procedure of survey work, area

has to be cleaned & stripped as per specification.The areas coming underfilling has to be compacted to obtain 90% of maximum lab dry density of soil as per IS :2720 part VII No. of samples shall be one for each 500 M2area or part there of.After clearing, stripping of areas for excavation & filling spot levels will be taken at intervals & pattern as directed by EIC.

After taking spot levels, excavation will be started true to its lines, levels& contours as shown in the drwg. & the excavated soil will be transportedto the filling area by dumper / truck / any other transport modesimultaneously & laid in uniform layers not exceeding 30 cms in loosedepth.The layer shall be compacted with watering & rolling by manual /

mechanical means to obtain 90% of laboratory maximum dry density (standard proctor )

In case of conflict between procedure and specification, specification shallsupersede procedure.

JOB PROCEDURE FOR SURVEYING

PURPOSE

THE PURPOSE OF THIS PROCEDURE IS TO ENSURE PROPER CONTROLIN SURVEY WORKS.

SCOPE:

THIS PROCEDURE COVERS ACTIVITIES FOR CARRYING OUT SURVEY

WO

RKS.

REFERENCE DOCUMENTS : SPECIFICATIONS: AS PER ANNEXURE ±E OFTENDER DOCUMENT.





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PROCEDURE: TRANSFER THE BENCHMARK/GRID PILLAR NEARER TO WORK SPOT.

A) REFERENCE PILLARS TO BE CONSTRUCTED TO FACILITATEEASY CONSTRUCTION. THESE PILLARS ARE TO BE CHECKEDBY THEODOLITE AND PROTECTED UNTIL THE COMPLETIONOF MAJOR ACTIVITIES.

B) LEVELS OF EXISTING GROUND TO BE TAKEN JOINTLY BEFORE COMMENCING OF EARTHWORK.

C) DURING CONSTRUCTION, LEVELS AT REQUIRED STAGES TO BE TAKEN AND CHECKED BY LEVELING, INSTRUMENTS.

D) THE SURVEY WORK TO BE CARRIED OUT BY ANEXPERIENCED SURVEYOR AND TO BE CHECKED BY CONSTRUCTION ENGINEER AND IN LINE WITH THEINSTRUCTIONS OF ENGINEER-IN-CHARGE.

E) PERMANENT GRID PILLARS TO BE APPROVED BY CONCERNED ENGINEER AND TO BE MAINTAINED UNTILCOMPLETION OF THE JOB.

G) IN CASE OF CONFLICT BETWEEN PROCEDURE ANDSPECIFICATION, SPECIFICATION SHALL SUPERSEDEPROCEDURE.





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JOB PROCEDURE FOR BACKFILLING

PURPOSE: TO ADOPT PREDETERMINED & CONTROL METHODOLOGY FORCARRYING OUT THE ACTIVITY.SCOPE: THE SCOPE THIS PROCEDURE INCLUDES SELECTION OFSUITABLE EARTH FOR

REFERENCE DOCUMENTS : SPECIFICATION: AS PER ANNEXURE ±E OFTENDER DOCUMENT.

PROCEDURE:

BACKFILLING AROUND COMPLETED FOUNDATION STRUCTURES, TRENCHES

AND IN PLINTH SHALL BE DONE TO THE LINES & LEVELS SHOWN ON

DRAWINGS INCLUDING ANY TRIMMING SURFACES AS MAY BE NECESSARY.

THIS SHALL BE DONE WITH THE SELECTED & APPROVED EARTH FROM





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EXCAVATION OR OTHERWISE WITH MATERIALS AS DIRECTED BY THE

ENGINEER-IN-CHARGE. WHERE SUFFICIENT SUITABLE MATERIAL IS NOT

AVAILABLE FROM THE EXCAVATION THE ENGINEER-IN-CHARGE MAY DIRECT

TO IMPORT SUITABLE EARTH FROM OTHER SOURCES. THE FILLING SHALL

BE DONE IN LAYER OR OF THICKNESS NOT EXCEEDING 15 CM WITH

WATERING, ROLLING & RAMMING BY MANUAL METHODS, MECHANICAL

COMPACTOR TO GRADE AND LEVEL AS SHOWN ON DRAWINGS TO OBTAIN

90% OF MAXIMUM DENSITY.

JOB PROCEDURE FOR SAND FILLING

PURPOSE : THE SCOPE OF THIS JOB PROCEDURE IS TO PROVIDEAPPROVED PREDETERMINE & CONTROLLED METHODOLOGY FOR EXECUTIONOF THE ACTIVITY.

SCOPE: THE PURPOSE DEALS WITH THE SAND FILLING IN BLANKET COURSE IN ROADS & DRAINS WORKS ETC.

REFERENCE DOCUMENTS: AS PER THE TENDER DOCUMENT

PROCEDURE: SAND FILLING IN PLINTH /FOUNDATION/BLANKET COURSESHALL BE AS PER SPECIFICATION AS MENTIONED IN THE ANNEXURE±E OF TENDER DOCUMENT.

FILLING SHALL BE CARRIED OUT IN LAYER NOT EXCEEDING 15 CM ANDSHALL BE COMPACTED MECHANICALLY OR BY SATURATION TO SPECIFIED





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GRADE AND LEVEL AND TO OBTAIN 90% LABORATORY MAXIMUM DRY DENSITY OR AS SPECIFIED IN SCHEDULE OF RATES.

COMPACTION BY FLOODING MAY BE ACCEPTED AT THE DISCRETION OF THEENGINEER-IN-CHARGE, PROVIDED THE REQUIRED COMPACTION ISARCHIVED.

THE CONTRACTORS SHALL NOT COMMENCE FILLING IN AND AROUND ANY WORK UNTIL IT HAS BEEN PERMITTED BY THE ENGINEER-IN-CHARGE

IN CASE OF CONFLICT BETWEEN PROCEDURE AND SPECIFICATION SHALLSUPERSEDE PROCEDURE.

JOB PROCEDURE FOR P.C.C.

PURPOSE: THE PURPOSE OF THIS PROCEDURE IS FOR SUPERVISION OF ALL PCCWORKS AND TO ENSURE THAT PROPER QUALITY CONTROL ISEXERCISED AT SITE.

SCOPE: THIS PROCEDURE COVERS SUPERVISION AND METHODS OF RECORD

KEEPING FOR ALL PCC WORKS.

REFERENCE DOCUMENTS: SPECIFICATIONS AS PER ANNEXURE-E OFTENDER DOCUMENT.

MATERIAL: ALL MATERIALS LIKE FINE AGGREGATE, COARSE AGGREGATE, CEMENT SHALL BE APPROVED AND TESTED AND SHALL CONFIRM TO SPECIFICATIONAS MENTIONED IN THE TENDER DOCUMENT. THE FREQUENCY OF TESTSSHALL BE AS PER ABOVE SPECIFICATION OF ANNEXURE-E.





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PROCEDURE:

1. EXCAVATED SURFACE SHALL BE CHECKED BEFORE PCC. IT SHOULD BEWELL COMPACTED & FREE FROM STANDING WATER, MUD OR DEBRIS.

2. EXCAVATED LEVEL SHALL BE CHECKED AS PER DRAWING / STRUCTURE.3. PCC SHALL BE AS PER SPECIFICATION & AFC DRAWINGS.4. TOP LEVEL OF PCC SHALL BE CHECKED BEFORE RCC AND SHALL BE

RECORDED ON THE POUR CARD.5. CURING SHALL BE DONE AS PER SPECIFICATION.6. WHEREVER GRADE OF PCC IS MENTIONED, NUMBER OF CUBES SHALL BE

TAKEN AS PER REQUIREMENTS AND TESTED FOR ACCEPTANCE.7. IN CASE OF CONFLICT BETWEEN PROCEDURE AND SPECIFICATION,

SPECIFICATION SHALL SUPERSEDE PROCEDURE.

JOB PROCEDURE FOR RCC

PURPOSE: THE PURPOSE OF THIS PROCEDURE IS FOR SUPERVISION OFCONCRETING WORKS AT SITE AND TO ENSURE THAT PROPER QUALITY CONTROL IS MAINTAINED.

SCOPE: THIS PROCEDURE COVERS SUPERVISION AND METHODS OFRECORD KEEPING FOR CONCRETING WORK AT ALL STAGES.

REFERENCE DOCUMENTS: SPECIFICATIONS AS PER ANNEXURE ±E OFTENDER DOCUMENT.

PROCEDURE:

BEFORE CONCRETING:

1. MATERIAL SHALL BE TESTED IN LAB AS PER SPECIFICATION AND ASDIRECTED BY ENGINEER-IN-CHARGE.

2. AVAILABILITY OF VIBRATORS, WATER, LIGHTING ARRANGEMENT, ETC.SHALL BE ENSURED.

3. POUR CARD SHALL BE SUBMITTED BY THE CONTRACTOR AFTERCHECKING.





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4. REINFORCEMENT PLACING AND FORM WORK SHALL BE DONE AS PERDRAWING / STANDARDS.

WHILE CONCRETING:

1. CONCRETING SHALL BE DONE BY CONCRETE MIXERS AND WEIGH BATCHER IN GENERAL.

2. CONCRETE SHALL BE POURED BEFORE INITIAL SETTING TIME ANDCOMPACTION SHALL BE DONE BY VIBRATOR.

3. SAMPLING OF TEST CUBES SHALL BE DONE JOINTLY.4. CONSTRUCTION JOINT SHALL BE PROVIDED AS DIRECTED.

AFTER CONCRETING:

1. FRESH CONCRETE SHALL BE COVERED WITH JUTE GUNNY BAGS ANDSHALL BE PROTECTED FROM DAMAGE.

2. POCKET (IF ANY) SHALL BE REMOVED AFTER INITIAL SETTING TIMEWITHOUT DAMAGING THE CONCRETE.

3. DE-SHUTTERING SHALL BE DONE AFTER MINIMUM PERIOD SPECIFIEDAND AS DIRECTED BY ENGINEER-IN-CHARGE.

4. ANY HONEYCOMB APPEARED SHALL BE FINISHED PROPERLY ASDIRECTED.

5. CURING SHALL BE DONE AS PER SPECIFICATIONS.6. CUBES SHALL BE KEPT TOTALLY IMMERSED IN WATER TANK AND SHALL

BE TESTED AS PER SPECIFICATION

PRECAST CONCRETING

CASTING OF PRECAST CONCRETE WILL BE IN THE SAME MANNER ASDESCRIBED REGARDING CONCRETING. NECESSARY LIFTING HOOKS OFSUITABLE DIAMETER SHALL BE PROVIDED FOR HANDLING UNLESSOTHERWISE SPECIFIED, EXPOSED SURFACE OF PRECAST MEMBERS SHALLBE INTEGRALLY FINISHED SMOOTH. THE TOP SURFACE SHALL BE MARKEDWITH T TO IDENTIFY THE TOP SURFACE AT THE TIME OF ERECTION. ALLSAFETY PRECAUTIONS SHALL BE TAKEN AT THE TIME OF ERECTION. IT SHALL BE ERECTED CAREFULLY SO THAT IT CANNOT GET DAMAGED.

RECORDS

01. POUR CARD SHALL BE MAINTAINED





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02. MATERIAL TEST RECORDS AS PER FREQUENCY SHALL BE MAINTAINED.03. CUBE TEST RESULTS SHALL BE MAINTAINED FOR 07 DAYS AND 28 DAYS

RESULTS.

04. IN CASE OF CONFLICT BETWEEN PROCEDURE AND SPECIFICATION,SPECIFICATION SHALL SUPERSEDE PROCEDURE.

JOB PROCEDURE FOR BRICK WORK

PURPOSE: THE PURPOSE OF THIS PROCEDURE IS FOR SUPERVISION OFALL BRICKWORK AND TO ENSURE THAT PROPER QUALITY CONTROL ISEXERCISED AT SITE.

SCOPE : THIS PROCEDURE COVERS SUPERVISION AND METHOD OFRECORD KEEPING FOR ALL BRICK WORKS.

REFERENCE DOCUMENTS: SPECIFICATIONS AS PER ANNEXURE- E OFTENDER DOCUMENT.

PROCEDURE:

1) APPROVED BRICKS SHALL BE SOAKED IN WATER BEFORE USE AT SITE FOR A PERIOD THAT IS SUFFICIENT FOR WATER TO PENETRATEIN TO THE FULL DEPTHS OF BRICKS IN STACK.

2) THE SURFACE OF R.C.C. SHALL BE WELL CLEANED FROM DUST /DIRT PARTICLES APPLYING WATER AND WIRE BRUSH IF NECESSARY BEFORE COMMENCEMENT OF BRICK WORK .

3) PROPER HACKING OF R.C.C. SURFACE SHALL BE DONE AT JOINTS OF

BRICK WORK WITH RCC BEFORE COMMENCEMENT OF MASONRY WORK.

4) BRICK WORK SHALL BE DONE IN ENGLISH BOND PATTERN.5) CEMENT MORTAR SHALL MEET THE REQUIREMENTS OF IS 2250 AND

SHALL BE PREPARED BY MIXING CEMENT AND SAND BY VOLUME.6) MORTAR SHALL BE MIXED IN PROPORTIONS AS SPECIFIED IN

DRAWING SPECIFICATION.





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7) MORTAR SHALL BE APPLIED OVER THE BRICKS WITH FROG FACINGUPWARD.

8) AFTER COMPLETION OF REQUIRED COURSES ALL VERTICAL JOINTS

SHALL BE FILLED WITH CEMENT MORTAR.9) ALL JOINTS SHALL BE PROPERLY RAKED AFTER FILLING CEMENT

MORTAR.10) CURING SHALL BE DONE AFTER 24 HRS OF COMPLETION OF WORK

AND SHALL BE DONE FOR AT LEAST SEVEN DAYS AFTER COMPLETIONOF WORK.

11). IN CASE OF CONFLICT BETWEEN PROCEDURE AND SPECIFICATION,SPECIFICATION SHALL SUPERSEDE PROCEDURE.

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