Providing water proofing treatment over the roof slab of 516 and 517 Buildings of KARP

Providing Water proofing treatment to the Roof Terrace Over Reinforced Concrete precast slab roofing area using WP SHIELD P4180 4mm thick bitumen based sheet and WP SHIELD SLATED 4mm thick of CERA as per specifications at an elevation upto (+)27.50M above the ground level and all locations, as directed by the Engineer in Charge. a) The existing tarfelt waterproofing membranes shall be removed completely without damaging existing structure by cutting and peeling off from the surface and disposing the same from terrace to ground floor for a lead of 100 metre as directed by EIC.(Removing of existing tarfelt will be paid separately.)b) The surface shall be cleaned thoroughly with wire brush and light chisels for making the surface free from existing bitumen primer, dust, other laitance, etc.c) Wherever required Grooves shall be cut along the slab joints (in either direction) and at the visible surface cracks with a cutting machine and after applying a lavish coat of polymer based bonding agent SBR LATEX from CERA the same shall be filled with cementitious non• shrink grout polysulphaid Sealant CERAGROUT 40 from CERA by injecting method with mechanical injecting machine, 300mm apart and drill 15mm deep with 10mm dia. drill holes nipples wherever leakage area has been identified.d) The area shall be tested for any leakages by ponding water in panels. The area should be got approved by the Engineer-in-charge for free from any leakage before applying the bituminous primer and APP Membrane.e) When the entire surface is water-tight, dry and moisture free, one coat of bituminous primer shall be applied over surface @ 0.3 kg/sqm and 1st layer of 5 - layered, 4mm thick, polymer reinforced APP membrane WP SHIELD P4180 from CERA shall be laid with 200mm overlapping by torch - on application when the primed surface is tacky and as per the manufacturer's recommendation.f)The second layer of 5 - layered, 4mm thick, polymer reinforced APP membrane WP SHIELD - SLATED from CERA shall be laid with 200mm overlapping by torch - on application when the primed surface is tacky and as per the manufacturer's recommendation shall be laid in perpendicular direction to the first layer. Note: i) The treatment should be done by an agency specialized in the job having sufficient knowledge of water proofing treatment. Suggested vendors : (1) M/s. Cera-Chem Pvt. Ltd., Chemicals (2) M/s. Sika India Pvt. Ltd. Chemicals ii) Ten years guarantee shall be given by the contractor in the prescribed form of the department for the above water proofing treatment work

Providing and laying APP membrane water proofing treatment with CERA WP SHIELD P4180 of 4mm thick with sufficient overlaps of 200mm by torch on application including application of bituminous primer over the prepared surface including preparation of surface at an elevation upto (+)27.50M above the ground level and all locations, as directed by the Engineer in Charge.

Providing and laying water proofing treatment system for Terrace and gutter Horizontal and Vertical surface over RCC cast insitu slab roof area using 2 component, solvent free liquid hot applied elastomeric seamless hybrid polyurethane Membrane of TOP HYPUR 140 (formerly know as TOP ZIPROOF SFU 140) of top A India product or other approved equivalent brand applied to a thickness of 1.8mm over a coat of primer two component system of epoxy primer of Top PRIME ER 40/ Master seal P2525 of Master builder solution equivalent with a coat of quartz sand over the epoxy primer applied at surface prepared concrete mother slab substrate after conducting preliminary leak test and final leak test and as per Manufacturers specification and standard specification as directed by the Engineer in Charge. Note: i) The treatment should be done by an agency specialized in the job having sufficient knowledge of water proofing treatment Suggested vendors : (1) M/s. Cera-Chem Pvt. Chemicals. (2) M/s. Sika India Pvt Ltd. Chemicals. (3) BASF, (4) Top A India or Equivalent Approved.

Providing & fixing the Geo textile 300GSM laid over the dried spray PU coated are, mainly below the screed concrete area etc., complete.

Supplying and providing the CERA MEC STRIP SEAL upto 250mm width Expansion joint strip treatment for roof slab (Horizontal face)/ vertical wall face including chipping & surface preparation, applying CERA MEC SS ADHESIVE over the roof slab expansion joint to a minimum 50mm and aligning to the required line overlapping of minimum 100mm of strip with suitable rubber adhesive, carefully removing of air pockets & wrinkles as per specification including providing with approved quality of polyethelene or high quality foam backer rods, including treatment admixed with CERA LATEX SBR @1kg per 50 kg (1 bag) of cement at all joints, at an elevation upto (+)27.50M , all as per specifications and as directed by the Engineer in Charge.Note: The area shall be tested for any leakages by ponding water in panels. In case of any leaks found grouting shall be done with contractors cost.

Grouting the high strength Polyurethane with adjustable setting time TOP INJEKT 70.Providing and fixing 14mm diameter mechanical packers with non return arrangements including drilling holes, fixing packers, sealing leak paths, injecting TOP INJEKT 70 high strength polyurethane resin, using Single or Double component pneumatically operated injection pump at variable pressure as per the requirement and direction of engineer in charge. Includes labour, machinery charges, oil and other consumables like adaptors flexible pipes, removing packers after injection, grinding etc complete. Note:- The consumption of grout material measured for bill is the actual quantity of intake during grouting. Wastages during grouting process and other wastages are not considered for measurement.

Providing the coating on the floor area by screeding with 1:2:4 screed concrete with 10mm down aggregate admixed with crystalline based integral water proofing admixture CERA CRYSTALLINE INTEGRAL / Conplast / SIKA WT - 215P @0.8% by weight of cement to an average thickness of 50mm depending on the downtake pipes available including applying one coat bonding polymer modified mortar 1:2 (1 cement 2 sand ) admixed with CERA LATEX SBR /FOSROC NITO BOND SBR / SIKA additive @ 3kg per bag of cement over the prepared surface at an elevation upto (+)27.50M above the ground level and all locations, as directed by the Engineer in Charge.

Providing plastering in cement mortar 1:4 using crushed stone sand admixed with CERA LATEX SBR /FOSROC NITO BOND SBR / SIKA additive @ 3kg per bag of cement , 20mm thick at an elevation upto (+)27.50M above the ground level including all elevations including hacking of concrete surfaces with pointed tool, scaffolding, finishing, curing, all as per specifications.

Providing and laying Haunching the wall and slab joint around the wall using CM 1 : 2 : 4 (Cement: Sand: Chips 10mm and downgraded) for a size of 100mm x 100mm admixed with CERA LATEX SBR of CERA @ 1 Kg per bag of cement including preparing the surface thoroughly by chipping all loose material / mortar, cleaned with wire brush and coir brush in order to remove all loose & deleterious matter, dust etc. and cutting "V" grooves along the construction joints / Expansion joints on wall - slab joints and applying Polymer bonding agent CERA LATEX SBR of CERA @ 1 Kg per bag of cement shall be mixed with neat cement slurry and applied as bonding coat at an elevation upto (+)27.50M above the ground level and all locations, as directed by the Engineer in Charge.

Dismantling weather proofing old bitumen felt or APP membrane sheets at all levels and cleaning the surface including disposal of rubbish to the dumping yard near the building at ground level as directed by EIC.