REPAIR TO SEEPAGE LEEKAGE OF SUNKEN SLAB OF CERTAIN BLDGS IN AREA UNDER AGE BR I AT NAVAL STATION KARANJA

Amount

Demolition of cement concrete including ceramic floor tiling,wall tilling & screed bed from sunken slabs of WC/Bath/Toilet/Kitchen etc complete all as specified and directed.

Roughening surfaces of old concrete by sweepping clean and washing down with water to remove dust complete all as specified and directed.

M&L for 6mm thick rendering in fair faces of brickwork or concrete surface in CM 1:4 with water proofing compound. (Note: WPC shall be paid separately) complete all as specified and directed.

M&L for Drilling and fixing Rohibb Teflon nozzles in sunken slab including drilling holes of 12mm dia, 50 to 100mm deep holes. Works shall be carried out as under :- (i) Cleaning of holes. Clean the holes by air blower prior to fixing nozzles. (ii) Fixing of nozzles. Insert 12mm dia. Rohibb Teflon nozzles in cleaned holes. External end of nozzles to be machine to receive outlet of grouting gun. Fix it inside the holes by applying thixotropic epoxy putty to ensure complete sealing. Cure the system for min.12 hrs. (iii) Cutting of nozzles. Cut the nozzles by chisel after completion of grouting without damaging structural elements.

M&L Injecting low viscosity (3-5cps) high molecular weight monomer by pressure and using mechanized injector gun with accessories till nozzles refuses to accept the grout, Including, Mixing of materialas: Mixing of material components(part a&b) in the required quantities as per manufacturer's instruction by weigh batching. Grouting:Fill the grouting gun with concrete penetrating corrosion inhibitor EPCO-KP-100. Maintain desired pressure in the gun by air compressor; maintain the pressureat exit (2 to 3kg/cm2) by monitoring pressure guage at exit. Grout the material through prefixed nozzles in the structural elements@ 100ml per nozzle. Repeat the process for all the nozzles complete all as specified and directed.

M&L for Injecting of site mixed cement slurry grout, mixed in specified proportion containing cement, sand water with addition of plasticizers (approved make) & migratory corrosion inhibitors, water cement ratio shall be varied between 0.5 to 1.0 for each hole, shrinkage compensating cement slurry mixed to a lump free fresh creamy consistency , Mixing shall be done by mechanical mixer continuously stirring mechanically to keep cement particles in suspension. Injection of approved/specified grout by means of pump at a pressure of 3-5 Kg/cm2 etc complete till the grout mix flows out from the nozzle indicating complete filling of grout in the holes drilled. Make / brand of Epoxy grout - Dr. Fixit Epoxy injection or EPCO KP-HP-250 of M/s Krishna Conchem or Shaligrout EI of STP Ltd.

S&F Epoxy putty in all junction points of sides wall where GI/GI pipes are passing through shall be sealed. After drying putty,wash the slab and sides of sunken portion with water and make it clear and clean complete all as directed by the Engr-in-charge.Make Dr. Fixit Epoxy EPCO KP-HP-250 of M/s Krishna Conchem or Shaligrout EI of STP Ltd.

S&F applying two coat of polymer modified cementitious water proofing coating as per manufacture's instruction to bottom and verticles sides up to finished floor level + 100mm height. The thickness of each layer shall be 1 mm thick. When the second layer is still sticky, coarse and sand spray shall be carried for the verticle and bottom surface complete all as directed by the Engr-in-charge. make Vistamaxx performance polymers

M&L for 20mm thick rendering in fair faces of brickwork or concrete surface in CM 1:4 with water proofing compound only for sunken portion. (Note: WPC shall be paid separately) complete all as specified and directed.

M&L for cement concrete 1:7:12, type F 2 using Bricks coarsed aggregate in sunken floors, side benching/filling etc complete all as specified and directed.

S & F GI water tubes medium grade 40mm bore for spouts in sunken slabs complete all as specified and directed .

S&F in repairs Vitreous China squatting pan, `Orrisa' pattern, size 580 x440 mm white, with integral foot rests (excluding flushing cistern & flush pipe) complete all as specified and directed.

S&F in repair Vitreous China wash down water closet pan (pedestal pattern), white (excluding fixing bolts, flushing cistern & flush pipe) incl all fittings complete all as specified and directed.

S&F Coloured Non Skid ceramic tiles 7 to 8mm thick (squares/rectangular) area of each tile exceeding 0.11 sqm but not exceeding 0.18 sqm, in floors etc. set and jointed in neat cement slurry and pointed in white or coloured cement to match over 15mm thick screed in CM(1:4) complete all as specified and directed.

S&F Coloured Non Skid ceramic tiles 7 to 8mm thick (squares/rectangular) area of each tile exceeding 0.06 sqm but not exceeding 0.11 sqm, in floors etc. set and jointed in neat cement slurry and pointed in white or coloured cement to match over 15mm thick screed in CM(1:6) complete all as specified and directed.

S&F Glazed ceramic colour tiles (300x200mm) 7mm thick, in dado/skirting etc set and jointed in neat cement slurry and pointed in white or coloured cement to match.over 10mm thick Screedbed in CM 1:4 on brick or concrete surfaces for fixing of tiles as in dado/skirting complete all as specified and directed.

Supply only integral water proofing compound complete all as specified and directed.

S&F 50mm dia high density polyethylene (LDPE) pipes complete all as specified and directed.

S&F in repair PVC (SWR) floor trap75 mm dia, with grating including jointing to waste pipe fixed in cement concrete type B1 (1:2:4) etc complete all as specified and directed.

S&F in repair PVC (SWR) Nahani trap 110mm dia, with grating including jointing to waste pipe fixed in cement concrete type B1 (1:2:4) etc complete all as specified and directed.

S&F Cast iron 75mm bore Bends (any radius), diminishing pieces or tapers (larger bore measured) complete all as specified and directed.

S&F Cast iron 100mm bore Bends (any radius), diminishing pieces or tapers (larger bore measured) complete all as specified and directed.

S&F Cast iron 75mm bore Branch pieces, single (equal or unqual), ordinary or inverted (spigot or socket type) or with parallel branches complete all as specified and directed.

S&F Cast iron 100mm bore Branch pieces, single (equal or unqual), ordinary or inverted (spigot or socket type) or with parallel branches complete all as specified and directed.

Removing demolished concrete/tile/plaster material etc complete as directed to a distance exc 1.5 km but not exc 5km and deposited where directed.

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