technal submittal for ug tank water proofing

BASEMENT WATERPROOFING SYSTEM SOLUTION USING MASTERPREN BG/FR

PVC MEMBRANE SYSTEM

BASF India Limited Construction Chemicals Division

INDEX

Contents

1. Project Site Situation Scope of work System Solution Watertight System

2. PVC Membrane System Features & Advantages of Masterpren Membrane System

3. Application Treatment for Raft Waterproofing Post Construction Maintenance Mechanism

o Compartmentalization at Raft o Fail Safe Mechanism at Raft

Treatment for Pile Caps Treatment for Retaining wall Treatment for Construction Joints USING MASTERFLEX 900 (REINJECTABLE HOSE) OR MASTERFLEX 610

(HYDRO SWELLING GASKET) Treatment of internal side of wall/floor of Potable water Tanks and STP/ETP Tanks

4. Technical Data Sheets


ABOUT PROJECT

Method Statement For Treatment of UG Tanks-Potable Water tanks & ETP/STP

Sequence of Waterproofing treatment:

A) External Side of the Tank

B) Treatment of the Construction Joints/Critical Joints

C) Internal Side of the Tank

1.1 SITE CONDITIONS ( DETAILS TO BE FILLED AS PER THE PROJECT & SITE SITUATION) The deep basement with high water table.

pile foundation.

The ground water table is very close to the ground level.

The large raft area

1.2 SCOPE OF WORK The structure requires a watertight system from raft, retaining wall, construction joints,

pile foundation.

Requirement of a loose laid passive membrane to allow the movement in the

substructure over time. The membrane had to have a capability to be tested and

inspected before the concreting is commenced. The structure needed to be


compartmentalized to restrict the spread the leakages. The leakages needed a

curative system in place which would assist speedy rectification with the minimum

disruption. Need for reliable long lasting watertight system. In case of any leakage in future, to arrest the leakage provision for doing injection

grouting shall be created during the waterproofing stage to avoid any puncturing of the

raft for the treatment. 1.3 SYSTEM SOLUTION PVC MEMBRANE Waterproofing system with Proven track record and very high

mechanical properties Risk of Damage Reduced. Loose laid system to work independent of structural movement - Risk of failure reduced Possibility of compartmentalization of the membrane and the structure to restrict the

leakage when it occurs - Reduction of risk of damage Capability to test and inspect installation - Reduction of risk due to inadequate

installation and damage during construction Curative measures and systems - Risk evaluation and control of expensive

maintenance Proprietary injection resins to control leakage -Reduction of cost of maintenance High performance concrete - Reduction of life cycle costs and durability Single source solution for the watertight system - Risk management

1.4 WATERPROOFING SYSTEM SOLUTION: Single ply PVC membrane waterproofing system, the membrane is MASTERPREN BG / FR 2mm thick in all areas, with special treatment for the pile head / rock anchors and

pressure release pipes. The Geotextile membranes provide the slip resistance between

the substrate and the membrane in all areas, with an addition layer on top of the

MASTERPREN BG / FR in the vertical areas as protection. The capability of welding the


PVC surface waterstops to the waterproofing membrane provided the capability of

compartmentalizing the structure and treatment to the joints in the raft and the retaining

wall to make them watertight.

Masterpren BG/FR - PVC Membrane System Features & Advantages of Masterpren membrane system High puncture resistance/elasticity/tensile strength/chemical resistance. Technology to lock in plasticizers leads to longevity. Speed and simplicity of installation > 300-400sqmt / 5 man crew / machine. PVC membranes can be welded to proprietary PVC surface waterstops. Capability of testing joints after installation, unlike similar loose laid systems. Double seam welding allows pressure testing of joints prior to concreting. Also available in translucent sheets for visual inspection of welds. Twin colour co-extrusion shows visual indication of damage, (has Signal Layer). Can be applied directly to Secant piles/Diaphragm walls. Cost and time saving. Loose laid to act independently of structural movement Masterpren BG/FR is fire rated material Long life expectancy Resistance to wash-out action Resistance to root penetration Proven track record in basement/ tunnel/reservoir and roof construction worldwide since 1963

EQUIPMENTS REQUIRED

1. Automatic double seam welding machine, Leister Twinny

2. Hot Air Manual welding Guns (Triac PID)

3. Air blower

4. Vacuum Pressure Testing Kit

5. Pressure testing kit for double seam welding

6. Seam Probe (For testing the Welded joints)

7. 6mm brass Roller / Rollers

8. Scissors


9. Cutter for T-Joints

APPLICATION PROCEDURE ON HORIZONTAL SURFACE OVER PCC

Surface Preparation. Laying the geotextile (of minimum 300gsm to 500gsm depending on the site condition) on the

horizontal surfaces as correction or slippage layer. Horizontal application of MASTERPREN BG / FR 2mm thick membrane and welding using a

automatic welding equipment such as Leister Twinny or hot air manual gun.

Providing and fixing PVC surface waterstop for compartmentalization of the system. Providing and fixing PVC Injection Valve with pipes in the compartment. Laying the geotextile (minimum of 300gsm) on the horizontal as protection layer Providing a protection screed layer of 50mm thick to enable tying of reinforcement bar. SURFACE PREPARATION

The substrate shall be PCC concrete of sufficient thickness

to ensure a firm substrate that will not crack or deform under

normal trafficable conditions during waterproofing

installation, and structural concreting operations. It should

be smooth, free from debris and other irregularities, which

may puncture and damage the waterproof liner.

1ST LAYER ADJUSTMENT LAYER OVER PCC

All horizontal surfaces should be covered with a uniform

adjustment layer using Non-Woven Geotextile. It has the purpose

of ensuring the uniformity of the substructure in order to avoid

that faults, irremovable debris or other roughness in the

underlying layer may cause damage, perforate or punch, the

waterproof layer.The Uniformity layer should be geotextile Non

Woven resistant to micro-organisms, needle-punched 100% pure

polypropylene yarns, with a weight minimum of 300 gsm. The geotextile layer shall be laid on the

substrate ensuring no gaps in the geotextile. The geotextile should be checked prior to the


application of the waterproofing membrane.

2nd Waterproofing Membrane Layer ( Masterpren BG / FR )

The watertight element on all horizontal surfaces shall be Masterpren BG/FR 2mm thick. Masterpren

BG/FR is a synthetic membrane made of plasticized PVC manufactured by twin coloured (having signal

layer) co-extrusion method. (refer to Technical Data Sheet for more details)

HORIZONTAL INSTALLATION

Prior to installation of the membrane, the surface shall again be

checked for sharp objects that may damage the membrane and

uniformity layer is properly in place. Roll out the membranes

with an minimum overlap of 80 mm. The membrane is loosely

aid on the horizontal surface. The edges of the membranes to

be welded must be clean and dry. Use a clean scrubber and

water to remove the dust deposits and impurities.

Sample weld to test the temperature should be carried out

before starting the work and the sample weld should be

subjected to the destructive testing as per instructions. The

depending on the environmental condition on the building site

the welding temperature shall be in the range of 450-550

Celsius.

Overlap of membrane shall be minimum 80mm and the double

seam welding is done. A pocket is created throughout the length

of the membrane. Both the ends of the membrane are plugged

and using pressure testing machine air pressure of 2 bars is

applied. Introduce pressurized air by means of a foot pump at


approximately 2 bar, wait for 1 minute to ensure the complete expansion of the inside groove and

then start the actual testing taking the pressure back for 2 bar. After a 10 minute interval again

check the air pressure. A 20% pressure decrease (due membrane expanding and lose from the

attached testing equipment is acceptable.) It ensures the air tight join, in turn is watertight.

POST CONSTRUCTION MAINTENANCE MECHANISM:

COMPARTMENTALIZATION AT RAFT

Water stops shall be placed at all construction joints and strategic locations to be determined

at site so as to have compartments of atleast 150m2.

The waterproofing membrane shall be welded to the PVC water stops to ensure it becomes

an integral part of the waterproofing system.

The purpose of the PVC water stop is to prevent, in the case of leakage, water passing from

one side of the construction joint to the other, thus limiting the remedial works required after

completion, should leakage occur.


FAIL SAFE MECHANISM AT RAFT

CHECK & INJECTION SYSTEM ( PRE-INSTALLED INJECTION SYSTEM - PIPETAS)

This enables control, if necessary, repair of the

compartmenting system. It is composed of a pre-formed valve

made of the same type of material (PVC) that allow direct

access to the void exisiting the waterproof membrane and the

substrate enabling monitoring and repair of the waterproof

system.

This enables a accessibility to the compartment sectors, allowing

future repair operation to be carried out by injection of water-

reactive resins.

Repair operations are extremely easy, thanks to the injection of

low-viscosity, hydro swelling, thermosetting resin based on vinyl

ester metha-acrylate chemistry for injection resins that will fill the

compartment completely, thus restoring the integrity of the

system.

After laying the horizontal plane, the concrete protective cap is cast; it shall leave the compartmenting

water stop webs free, to allow them to be drowned in the concrete.


POST CONSTRUCTION MAINTENANCE MECHNASIM: SEQUENCE AFTER INSTALLATION OF MEMBRANE: STEP1: COMPARTMENTALIZATION

STEP2: FIXING OF PIPETAS ( PRE-INJECTION FLANGE)


3ND LAYER OF GEO TEXTILE AS PROTECTION LAYER

The PVC membrane shall be covered with a uniformity layer using Non -Woven Geotextile resistant

to micro-organisms, needle-punched 100% pure polypropylene

yarns, with a weight of 300 gsm.

The Geotextile layer shall be laid over the PVC Membrane

ensuring no gaps in the Geotextile. The geotextile should be

checked prior to laying of protection screed.

PROTECTION LAYER

i. A 50mm layer of protection PCC shall be laid on top of the

geo textile layer following welding and checking of blue

signal layer to ensure no damage occurs to the membrane during installation of structural

reinforcement and structural concreting.

ii. Any damage to the blue signal layer shall be recorded and the necessary patch repairs

conducted before casting of the protection layer.

THE BUILT UP FOR THE RAFT WATERPROOFING IS AS FOLLOWS:-

1 PCC Layer: The first layer shall be a PCC layer with good finish of required thickness shall be laid and

provided to us.

2 Correction layer / Separation Layer: Non woven geotextile layer to be laid over the PCC before

laying the Masterpren BG / FR (PVC membrane).

3 Waterproofing Layer: MASTERPREN BG / FR (2mm thick) is a synthetic waterproofing membrane

made of plasticised PVC manufactured by twin coloured co-extrusion method.


4 Protection Layer: Non woven geotextile layer to be laid over Masterpren BG / FR, PVC waterproof

membrane, before the concreting of raft. The lap is welded using double seam welding followed by

testing of joints to check the integrity of the joints.

5 Protection Screed: Minimum 50 mm thick concrete screed shall be laid over the geotextile layer

before tying the reinforcement bars for the Raft.

6 RCC Raft

TREATMENT OF THE PILE CAP

1. The MASTERPREN BG membrane is dressed up to the outer surface of the rebar. This membrane is

then encapsulated in Masterseal 914 series, which is a epoxy grout.

2. The grout has a minimum thickness of 10mm below the membrane and 20mm on top of it. The grout

is extended to the edge of the pile.

3. When the dewatering is switched off or when movement takes place due to settlement or loading,

the membrane is allowed to move with the structure (because it is laid loose) yet held in place at the

pile top with the epoxy.

4. This epoxy also forms a barrier at the top of the pile to stop water rising through capillary action in

the matrix of the pile concrete.

5. Pile cap waterproofing

The epoxy grout MASTERFLEX 410 series is used to cap the pile heads and sandwich the membrane,

while allowing a movement capability at the interface of the pile head and the structure and to

waterproof the pile cap.

Reprofile and repair the pile heads prior to the watertight system being installed because, if required

is under clients scope.


DETAILING FOR TREATMENT AROUND ROCK ANCHOR PIPE SLEEVE & PRESSURE RELEASE PIPE SLEEVE

PLAN


RAFT SLAB


PRESSURE RELEASE PIPE SLEEVE TREATMENT

ROCK ANCHOR PIPE SLEEVE TREATMENT


TREATMENT FOR RETAINING WALL

SURFACE PREPARATION

The concrete surface should be smooth without any

honeycomb or surface irregularities. Any honeycomb

should be repaired with suitable repair mortar.

COMPARTMENTALIZATION

Rear Guard water stopper shall be fixed to the shutter at

predetermined locations before fixing it for concreting.

After the removal of the shutter the back of the water

stopper shall be cleaned to remove any slurry and dirt

before the application of the membrane.

1ST LAYER OF GEOTEXTILE

All the vertical surfaces of the retaining wall should be covered

with a uniformity layer using Non-Woven Geotextile. It has the

purpose of ensuring the uniformity of the substructure in

order to avoid that faults, irremovable debris or other

roughness in the underlying layer may damage or puncture,

the waterproof layer.

The Geotextile shall be resistant to micro-organisms, needle-

punched 100% pure polypropylene yarns, with a weight of 300

gsm. The geotextile should be checked prior to the application of the waterproofing membrane.


VERTICAL INSTALLATION OF THE MEMBRANE

i. Membrane on vertical surfaces shall be fixed by means of

roundel fixings as seen on the diagram below.

ii. The Rondels shall be of PVC material, and are an

essential part of the waterproofing system. The PVC

Rondel besides keeping the sheet adhered to the

substrate is also a safety element in case of irregular

tensioning of the membrane. The PVC Rondel is

designed with a pre-established breaking load and will yield before any damage occurs to

the lining.

iii. The MASTERPREN BG / FR membrane is laid from top to

bottom and welded together using a double hot wedge

automatic welder. Overlap of membrane shall be

minimum 80 mm and the double seam weld shall allow for

checking of water-tightness.

iv. Welding is carried out using a hot wedge automatic

welding machine.

v. To guarantee the integrity of the weld, a pneumatic test

is applied to ensure no pressure loss in the air spaces

between the seam weld and is recorded on inspection

sheets.


vi. Successive sheets of Geotextile shall be laid to ensure no gaps between the sheets and act

as slip layer to accept the waterproofing membrane and ensure no puncturing of the

membrane.

vii. A competent person shall inspect the rondel, geotextile and membrane application at each

stage similarly to horizontal membrane to ensure that no damage has occurred.

viii. Any defects identified shall be rectified immediately repaired and re-inspected

2ND LAYER OF GEOTEXTILE

All the vertical surfaces of the retaining wall where Masterpren BG is

installed shall be covered with a uniformity layer using Non-Woven

Geotextile, which shall be resistant to micro-organisms, needle-punched 100%

pure polypropylene yarns, with a weight of 300 gsm. The geotextile should

be checked prior to the application of the waterproofing membrane.

PROTECTION BOARDS: (OPTIONAL)

To protect the Masterpren BG / FR (PVC membrane) from getting damaged

due to back filling, 15mm thick E-por boards are to be erected vertically in

panels throughout the vertical length of the retaining wall and then the

back filling work is carried out.

Or

Use of 500gsm of geotextile as protectin Layer. Type of Protection layer to used can be decided

based on site condition and the type of back fill material to be used. The sides of the wall

accessible from its positive side shall be fixed with geotextile and the rondel to anchor & hold the

Membrane at its position as shown below. The membrane is to be protected after installation with

a 300gsm geotextile followed by 25 mm thick E-por boards.


BUILT - UP FOR RETAINING WALL

1 Separation Layer: 300 GSM Geotextile layer to be laid over the Retaining Wall

2 Rondels: Fixed on the Vertical Wall, used to hold the Membrane on vertical position at time of

installation.

3 Waterproofing Layer: MASTERPREN BG/FR: PVC Waterproof Membrane (2mm thick) MASTERPREN

BG/FR is a synthetic waterproofing membrane made of plasticized PVC manufactured by twin

coloured co-extrusion method.

4 Protection Layer : Laying of 15mm thick E-por protection Boards over the PVC Membrane to ensure

that the PVC membrane is not damaged due to back filling or geotectile or other protection based on

site condition and type of back fill material

MASTERFLEX 610 / 900

Masterpren BG/FR (2mmthick)

Masterseal 910 / 909


Masterpren BG/FR (2mmthick)


TREATMENT FOR CONSTRUCTION JOINTS


TREATMENT USING Masterseal 909 (RE-INJECTABLE HOSE)

Construction joints at the retaining wall shall be installed with Masterseal 909 , Re-injeactable hose. Re-injectable hose specially designed with circular cross-section and containing neoprene seals on the openings which ensures one way flow of injection resin from inside out. The hose must be design to demonstrate re-injection capabilities at site. The Manufacturer shall provide all accessories required for end terminations and vacuuming arrangements for maintaining re-injection capabilities.

Re-injectable hose shall be injected with hydro-swelling vinyl ester metha-acrylate based resin only to maintain the re-injeactability property of the hose.

Masterseal 900 shall be injected withMasterseal 901, hydroswelling, water based, low-viscous, thermosetting resin based on vinyl metha-acrylate chemistry. The Injection resin shall have re-swelling capacity up to 2.5 times by volume in potable water. The injection resin shall contain accelerator to regulate the setting times and shall not of expanding foaming type product or non-swelling formulation. The injection resin shall be effective in saline water by exhibiting positive expansion.

APPLICATION Re-injectable hose system ( Masterseal 909 Re-injectable hose)

1. The Masterseal 900 re-injectable hose should be prefabricated to suit the actual installation in a particular construction joint. (See general layout guidelines below)

2. The Masterseal 909 hose should be installed just prior to formwork being done for further concrete works. The surface of the concrete where the hose is installed should be flat and smooth. In case surface retarders are used on the concrete joints, the length where the hose is to be installed should be kept free of retarder for a width of 40-50 mm.

3. The Masterseal900 hose if generally installed in lengths of 10-12 meters max and in rare situations or trafficked joints it can be extended by a few meters. This length restriction is


governed by the injection efficiency. Wherever possible, terminate the hoses in a vertical element of the structure or at the edge of the horizontal casting.

4. Fabricate Masterseal 909 hose in lengths of max. 12m depending on the structure. Attach approximately 400mm lengths of vent hose to both ends of Masterseal 900 hose and cover the junctions with a heat shrinkable plastic sleeve. The vent serves as an injection (or exit) port and hence does not have discharge holes. The different colors (green and clear) of the vent hoses are to identify the input and exhaust ends.

5. The termination boxes can be procured locally. Normal electrical boxes can be cast into the concrete. The size of the box may vary according to the number of hoses terminating in the box. Generally, this number should not exceed 4 to simplify the injection works, when required. There should be approx 20 cms of vent hose projecting out of the concrete.

6. The vent hoses at the two ends of the MASTERFLEX 900 should be of two different colours, i.e. green and transparent. This gives an indication of the end of one end of a hose and the start of the other in the box.

7. Prior to formwork being placed, a visual inspection of the hose should be carried out. Any hose found displaced should be fixed firmly and any hose found damaged should be replaced.

8. The location of the hose in a particular joint depends on the thickness of the concrete element but as a guideline it should be in the center of an element up to 800mm thick. For concrete elements greater than 800mm thick, the hose should be installed within 500mm from the face where water ingress is expected.

9. The vent hose may be tied to the reinforcing for support. Use tie wires, taking care that the binding is not too tight. The Masterseal900 hose should be fixed to the concrete using the clips supplied at a distance not exceeding 20cms. More clips may be required at turns and verticals. The hose should rest flat and be firm against the substrate so as not to be displaced by concrete being poured. There should be no gaps under the main hose where concrete or slurry might form another joint or displace the hose.


10. End caps should be installed at the vent ends during fabrication and should not be removed until injection has to be carried out. This will ensure that debris will not enter the hose during construction and the life of the building.

Masterseal 909 Fabrication Guidelines

Masterseal 909 hose Structure

1 Injection Channel

2 - Solid Core

Masterseal 909


Use Tape to Secure Mesh Cut at Desired Length

Insert Nozzel & Glue Use glue for hose Connection

Insert into Masterseal 909 Put heat shrink wrap on the joint

Shrink with heat gun Almost ready


TREATMENT FOR CONSTRUCTION JOINTS

TREATMENT USING Masterseal 910 (HYDRO SWELLING GASKET)

Construction joints at the retaining wall shall be installed with Masterseal 910; 10mm x 10mm cross-

sectional sized hydro-swelling water bar based on advance vinylacrylate polymers. The waterbar shall be

formulated to exhibit low pre-mature swelling (less then 50% with in 12 hours) and shall not be based on

super absorbents. The water bar shall have low swelling pressure; not exceeding 0.25 MPa at full swelling

capacity. The waterbar shall be installed with special adhesive.

Installation of Masterseal 910 in Construction Joints

1. Masterflex 610 hydrophilic acrylate based water bar shall be placed in all construction joints

as secondary protection to PVC membrane system.

2. The concrete substrate to which the Masterseal 910 is to be fixed must be smooth and sound.

3. Cut the Masterseal 910 to the required length. 4. Fix the Masterseal 910 to the concrete substrate using MASTERFLEX 610 Adhesive. Apply

light tension to the Masterseal 910 as it is being fixed. Allow the adhesive on the verticals to dry at least over night before concreting.

5. Protect the fixed Masterseal 910 from mould release oil and dirt. Do not saturate the water bar before concreting as this may cause it to swell.

6. After placement of the Masterseal 910, cast the next concrete pour.

NOTE: PLEASE REFER THE TECHNICAL DATA SHEET OF Masterseal 910 FOR MORE DETAILS


QUALITY CONTROL / ASSURANCE a) The waterproofing work will be inspected and tested in accordance with quality check and inspection

test report. This report will be used to verify compliance of the waterproofing work.


b) One day training workshop to be conducted by BASF at site or at clients place for the clients QA/QC /

project engineer / supervisor on welding / testing of weld joints and on supervision of entire

Masterpren BG installation.

c) After each welding sequence, the weld shall be tested using air pressure upto 2 bars initially. After

attaining a pressure of 2 bar, the pressure usually settles to something between 1.6 and 2 bar. The

pressure drop is because the material is elastic and relaxes around the needle insert location allowing

some air to escape. This does not mean the weld has failed. The weld has failed when no pressure

can be maintained and the pressure gauge drops immediately back to zero. A successful weld is

where the pressure has been maintained in this range for 5 to 10 minutes and the air channel has

fully inflated. Each successful weld shall be signed and dated by site supervising engineer.

d) The results shall be recorded on the relevant quality check and inspection test report and signed

jointly by client as well as applicators site supervising engineer.

e) Testing of every seam welded joint length shall be pressure tested and recorded the tested data shall

be written adjacent to every welded joint length on the installed membrane itself.

f) The surface of membrane shall be visually inspected to ensure that no black areas are present. Wherever such areas are noticed, a patch shall be placed in this location.

C) Internal Side of the Tank :

i) Prepare and clean the surface for waterproofing treatment, the surface must

be cleaned and well leveled any cracks , honeycombed surface must be repaired and sealed.

ii) Prepare the Coving of 50x50mm at the junction of Slab and Walls of the tank with Cement and Sand with Integral water proofing compound MasterPel 707 admixed with it.


iii) Application of Masterseal 551 - Always apply Masterseal 551 to pre-dampened surface. High-suction substrates require more dampening then dense substrates. However, make sure there is no free-standing water. Apply by brush or broom. Mixed material must be used with in 30 to 45 minutes, or less under hot weather conditions. First Coat: Brush or broom the mix firmly onto the pre dampened, prepared surface. Care must be taken not to spread the material too thinly. \When the material begins to drag or ball, do not add more liquid/water but dampen the surface again. Second Coat: Allow at least overnight to cure before applying subsequent coats. Dampen the first coat and remove excess moisture. Brush or broom the mix onto the surface (as above) finishing in the opposite direction to the first coat. The product shall resist 1.5 bars pressure when tested as per DIN 1048 at 2mm DFT. When applied at 2mm DFT, elastomeric coating shall be able to bridge crack up to 0.5mm width, etc complete as per manufacturers specifications.

iv) Protect the applied Masterseal 551 on slab & walls with Plaster of 20mm thickness.

A) In Case of Potable Water tanks : Internal Coating of Water based Epoxy coating of Mastertop 1818 shall be applied.

Masterseal 551

Mastertop 1818 Plaster

Masterseal 910

Masterpren BG FR with geo texile


SCHEMATIC LAYOUT OF WATERPROOFING LAYER FOR POTABLE UG TANKS

B) In Case of ETP/STP tanks : Internal Coating with Pitch Extended Epoxy coating of Masterseal 1812 shall be applied.

Geo texile +Masterpren BG FR+ geo texile + Protection screed

Masterseal 551

Mastertop 1812 Plaster

Masterseal 910

Masterpren BG FR with geo texile


SCHEMATIC LAYOUT OF WATERPROOFING LAYER FOR STP/ETP UG TANKS

WATERPROOFING AND PROTECTION SYSTEM UNDERGROUND POTABLE WATER TANKS & STP/ETP

BILL OF QUANTITIES

S.N.

DESCRIPTION QTY

UNIT RATE/UNIT

AMOUNT

1 RAFT WATERPROOFING

Correction Layer

Providing and laying Non-woven Polypropylene geotextile of 500gsm as correction / slippage layer horizontally, over top of the laid , float finished PCC, before laying masterpren BG / FR - PVC waterproofing membrane with Fire Retarding properties.

Sqmts

PVC Waterproofing Membrane

Providing and Installing 2mm thick synthetic membrane Sqmts

Geo texile +Masterpren BG FR+ geo texile + Protection screed


of plasticized PVC, masterpren BG/FR manufactured by co-extrusion process, which enables the production of a single membrane of twin coloured surfaces to form a signal layer of light green on upper surface and lower surface in black colour. Material shall conform to the physical and chemical properties given in the masterpren BG /FR technical properties datasheet or as mentioned in the specification above and shall have the following features such as: Elongation at break (300%) UNI EN ISO 527-3,Ultimate Tensile Strength (> 16.7 N/mm), Puncture resistance (> 1100mm) DIN 16726-5.12, Hydrostatic pressure Waterproof UNI EN 1928 resistance(6 hours at 5 bar), Fire Behaviour EN ISO 11925-2 Class E

Signal layer Resistance to wash-out waters action Resistance to bursting UNI EN ISO 9001 & UNI ENI 14001 certified plant.

Double seam welding of PVC waterproofing membrane joints where possible and pressure testing of the same to 2 bars upto 10 minutes max. Provision of suitable QA/QC system for the entire waterproofing works Compartmentalization by welding PVC water stop with welding fins at all construction joints and at strategic locations to make a compartment. The compartment shall be atleast 150sqmts or as and where required. As a fall back grouting option minimum 2 no.s of pipetas injection socket shall be placed in each compartment. The membrane system shall be of BASF

2 ENCAPSULATION TREATMENT Per No

Watertight treatment to pile head cap l


Provision of epoxy required terminating PVC waterproofing membrane at locations to be determined at site in conjunction with the designer

Providing and encasing the masterpren BG/FR PVC waterproof membrane using Masterseal 914 epoxy free flow grout at the point, at junction interface of installaton and masterpren BG/FR PVC waterproof membrane. Encapsulation shall be done with masterpren 410 series a epoxy grout shall be filler-extended, high strength, flowable

The encapsulation shall be done using Masterseal 914. The impermeable epoxy mortar shall be Masterseal 914 filler-extended, high strength, flowable. The grout shall exhibit high early strengths by exceeding compressive strength of 80 MPa at 1 day and 100 MPa at 7 days. The formulation shall be free of VOC and designed for application of up to 150mm thick layer in single pour with details out any cracking due to exothermic reaction. The detailing of the pile head encapsulation shall be as per the detailing mentioned in the drawing for pile head encapsulation treatment to make the interface between the pile head and the membrane watertight .

3 HORIZONTAL SURFACE PROTECTION LAYER

Providing and laying a protection layer of non woven 500gsm geotextile over the laid (Masterpren BG/FR) PVC waterproof membrane system, followed by a cement mortar screed of 50 mm thick over the geotextile. The protection mortar screed is provided to facilitate the placing and tying of reinforcement bars of raft. Concrete for screed to be provided by client

Sqmts


4 RETAINING WALL WATERPROOFING, TREATMENT

Providing and Installating (Masterpren BG/FR) - PVC membrane waterproof system over the vertical side for retaining wall waterproofing. Installing geotextile of 300gsm as correction layer , over the vertical side of the wall, before installation (masterpren BG/FR) - PVC membrane on vertical side.

Providing and fixing of Rondels - PVC discs of 100 mm diameter of approved round shape, should be fixed mechanically onto the vertical wall and it should be welded to the membrane to hold the membrane in vertical position against sagging due to self weight of the membrane. The Rondel to be place d in grid partern as per the site situation. Providing and Installing 2mm thick synthetic membrane of plasticized PVC, (Masterpren BG/FR) manufactured by co-extrusion process, which enables the production of a single membrane of twin coloured surfaces to form a signal layer of light green on upper surface and lower surface in black colour. Material shall conform to the physical and chemical properties given in the (masterpren BG/FR) technical properties datasheet or as per the specification above and shall have the following features such as Elongation at break (300%) UNI EN ISO 527-3, Puncture resistance (> 1100mm) DIN 16726-5.12, Ultimate Tensile Strength (> 16.7 N/mm),Hydrostatic pressure Waterproof UNI EN 1928 resistance(6 hours at 5 bar), Fire Behaviour EN ISO 11925-2 Class

Sqmts


Signal layer Resistance to wash-out waters action Resistance to bursting UNI EN ISO 9001 & UNI ENI 14001 certified plant.

.

Double seam welding of PVC waterproofing membrane joints where possible and pressure testing of the same to 2 bars upto 10 minutes

Provision of suitable QA/QC system for the entire waterproofing works

Compartmentalization by welding PVC water stop with welding fins at all construction joints and at strategic locations to make a compartment.

membrane to be of approved make and system to be installed by a approved and certified applicator of manufacturer (BASF) with similar project experience.

5 VERTICLE SURFACE PROTECTION LAYER

Providing and Installing a minimum protection layer of 500gsm or 25mm thick EPS protection boards over the vertically installed (masterpren BG/FR) PVC waterproofing membrane, on the vertical face of the retaining wall. This shall act as a protection layer against backfill.

( Note: The alternate protection layer can be boards or brick masonry wall depending on the site condition and the type of backfill material and as agreed by the client and the project team)

Sqmts

6 CONSTRUCTION JOINTS TREATMENT RMT


Providing and Installing masterseal 910 hydro swelling bar in all construction joints in raft and retaining wall of the underground basement structure. All construction joints , shall be installed with masterseal 910, 20mm x 10mm cross-sectional sized hydro-swelling water bar based on advance vinylacrylate polymers. The water bar shall be formulated to exhibit low pre-mature swelling (less then 50% with in

12 hours) and shall not be based on super absorbents. The water bar shall have low swelling pressure; not exceeding 0.25 MPa at full swelling capacity. The water bar shall be installed with special adhesive, masterflex 610 adhesive glue and not to be fixed using nails.

OR

Providing & Laying Re-injectable hose All construction joints shall be installed with (Masterseal 909), re-injectable hose specially designed with circular cross-section with star shaped profile and containing neoprene seals on the openings which ensures one way flow of injection resin from inside out. The hose must be design to demonstrate re-injection capabilities at site. The Manufacturer shall provide all accessories required for end terminations and vacuuming arrangements for maintaining re-injection capabilities.

7 Injection resin Grouting for re-injectable hose Kg

Injection resin shall be (Masrerseal 901), hydro-swelling, water based, low-viscous, thermo-setting resin based on vinyl metha-acrylate chemistry. The Injection resin shall have re-swelling capacity up to 2.5 times by volume in potable water. The injection resin shall contain accelerator to regulate the setting times and shall not of expanding foaming type product or non-swelling formulation. The injection resin shall be effective in


saline water by exhibiting positive expansion.

8 WATERPROOFING TREATMENT FOR PRESSURE RELEASE PIPES - 75MM DIA

Nos

TREATMENT OF 75MM DIA PRESSURE RELEASE PIPES: Providing openings in 2mm thick Masterpren BG/FR (PVC membrane) at the pressure relief PVC pipe sleeve locations and then 2mm thick Masterpren BG/FR (PVC Membrane), shall be welded to the horizontal membrane with an overlap of 200mm by Hot Air gun as per manufacture's specifications. The PVC membrane shall be held in position using Jubilee Clips. The entire set up is encapsulated using 50mm thick Masterseal 914 (Low Exothermic, High strength impermeable epoxy mortar) or equivalent make up to a height of 300mm to ensure water tightness as per manufacturer's specifications. Note: Rate is excluding cost of pipe, its installation and grouting of pipe

9 WATERPROOFING TREATMENT FOR ROCK ANCHOR SLEEVE - 100MM DIA

TREATMENT OF 100 MM DIA ROCK ANCHOR SLEEVE: Providing openings in 2mm thick Masterpren BG/FR (PVC

membrane) at the rock anchor pipe sleeve locations. 2mm

thick Masterpren BG/FR (PVC membrane) shall be welded

to the horizontal membrane with an overlap of 200mm by

Hot Air gun as per manufacture's specifications. The PVC

membrane shall be held in position using Jubilee Clips. The

entire set up is encapsulated using 50mm thick Masterflow

410 PCT (Low Exothermic, epoxy grout) or equivalent make


for a height of 300mm for water tightness as per

manufacturer's specifications.

Note : Rate is excluding cost of pipe, its installation and grouting of pipe

10 PILE HEAD TREATMENT:

A Re-Profiling Of Pile Heads:

Re-profiling of pile head with MasterEmaco S346 (Dual Shrinkage Compensated Micro Concrete) for a minimum

thickness of 25 mm around the sides and on the top over the existing profile of pile head to make it smooth and

uniform surface.

Note: Minimum thickness of 25mm on the top and sides of the piles

Kg

B Encapsulation Of Pile Heads:

Providing & Dressing 2mm thk Masterpren BG/FR (PVC Waterproofing Membrane) around the periphery of pile

heads up to the cover zone and encapsulating the

waterproofing membrane by sandwiching it between

Masterseal 914 (Low exothermic, High Strength Epoxy Mortar) in such a way that epoxy flows 10mm below & 20mm above the PVC waterproofing membrane respectively. The epoxy encapsulation shall extend on to the

sides of the re- profiled pile heads.

Note: The thickness on the sides shall be minimum


25mm and on the top shall be around 30mm.

4. INTERNAL WATERPROOFING (Walls and floors)

Providing and applying Masterseal 551 the the system as follows, Surface preparation, prewetting the surface and applying elastomeric cementitious waterproof coating, in two coats, second coat to be applied on the first coat. The material shall be mixed and applied fully in accordance with the manufacturer's instructions. The product shall exhibit at least 40% elongation at ambient & 30% elongation in under water condition with tensile strength greater then 20 Kg/cm2.The product shall resist 1.5 bars pressure when tested as per DIN 1048 at 2mm DFT. When applied at 2mm DFT, elastomeric coating shall be able to bridge crack up to 0.5mm width, etc complete as per manufacturers specifications.

Sq.m 450/-

5. PROTECIVE PLASTER

Waterproofing coating shall be protected using 20mm thick polymer modified which Masterpel 707 plaster as recommended by manufacturer.

KG 100

6 PROTECTIVE COATING

For Potable Water Tanks( Internal)

Providing and applying MasterProtect 1818 , a two components, solvent free, pitch extended epoxy resin system to provide a high build coating that protects concrete and metal substrates from a wide range of

370


aggressive chemicals. The High build, pitch extended epoxy coating is a 100% solids, solvent free, tough abrasion resistant protective coating. The product shall exhibit excellent bond strength with the substrate at least exceeding 2.5 MPa, when tested as per ASTM D4541. The product shall be formulated to have high build thickness exceeding 150 microns per coat on average and shall be applied to achieve overall thickness of 300 microns in two coats. components, solvent free, pitch extended epoxy resin system to provide a high build coating that protects concrete and metal substrates from a wide range of aggressive chemicals. The High build, pitch extended epoxy coating is a 100% solids, solvent free, tough abrasion resistant protective coating. The product shall exhibit excellent bond strength with the substrate at least exceeding 2.5 MPa, when tested as per ASTM D4541. The product shall be formulated to have high build thickness exceeding 150 microns per coat on average and shall be applied to achieve overall thickness of 300 microns in two coats

7 PROTECTIVE COATING

For STP/ETP TANKS( Internal)

Providing and applying Masterprotect 1812 a non-toxic, high build epoxy coating, solvent-less, taint free potable grade, protective coating. The product shall exhibit excellent bond strength with the substrate at least exceeding 1.5 MPa, when tested as per ASTM D4541.

The product shall be formulated to have high build thickness exceeding 200 microns per coat on average

Sq.m 370/-


Note:

1. Refer to the individual Technical Data Sheets of each product for more details

and shall be applied to achieve overall thickness of 400 microns in two coats. The product must be approved by reputed institute such as CFTRI for use in contact with potable water.

technal submittal for ug tank water proofing

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