PROVN OF FLY PROOF DOORS AND SPECIAL REPAIRS TO CERTAIN BLDGS (02 JOBS) AT ATS BELAGAVI UNDER GE (AF) SAMBRA

M&L for drilling holes in RCC structure at the interval of 0.45 mtr and packing the nozzle grouting pipe fixed with Renderoc plug or fast plug of make as approved by Accepting Officer ready to use rapid-setting, waterproof cement mortar. After injection, cut the nozzle and pack with Rendroc plug or equivalent make as approved by Accepting Officer ready to use, rapid- setting waterproof cement mortar complete all as specified and directed.

M&L for grouting into nozzle with cementitious injuction pressure grouting cement + Cebex 100 or equivalent make as approved by Accepting Officer two-part, cementitious injuction grouting and liquid @ 0.50 Kg/hole, packed with Rederoc plug and crack filling complete all as specified and directed.

M&L for cleaning all surfaces of RCC over head tank structure with wire brush or Nylon brush or water-pressure as directed by Engineer-in-Charge including removing all loose particles from surface and applying the following in sequence:- (a) After cleaning the suraface, all pipes packed with Sika grout and periphery of pipe pack with Sikadur-694 F(I) or equivaqlent solvent free epoxy resin resin based putty (Confirming to ASTM C882) for Corner's cobbing (b) Applying priming coat with Sika Raintite I or equivalent acrylic polymer emulsion for enhancing the properties of mortar, concrete, grout or cement slurry in ration 1:2:4 (Chemical:Water:Cement); CEmentous injection grouting will be done as per requirement at site situations (d) After priming coat make corner cobbing and repair the cracks with repair mortar in ratio 1:4:10:40 (Chemical:Water:Cement:Sand:Stone Dust as per required) (e) After repairing and corner's Cobing Apply the primimg on the Whole surface and on the priming coat laying Fibre mesh (f) Applying 1st coat of two component SikaTop-109 Seal IN (High performance flexible acrylic cementitious waterproofing coating) & 2nd coat after 6-8 hours or next day with two component SikaTOP-109 Seal IN (High Performance fleible acrylic cementitius waterproofing coating) (g) Ponding tests will be done after 7 days after completion of work complete all as specified and directed

M&L for applying Sikagard-67 or equivalent make water based, solvent free, odorless, epoxy resin protective coating, Food grade (USFDA 175.300 1st April 2017) from CFTRI, Mysore complete all specified and directed.

M&L for providing and erecting steel props (upto full height, braced at centre, resting on wedge and block to support the structure provisionally during repair work and maintaining them in position till reqd and as directed.

M&L for Chipping of loose/ damaged /cracked / previously repaired / delaminated or weak concrete by chieseling to expose the sound core concrete where ever required and to expose rusted reinforcement upto depth n.exc 50mm and disposal of rubbish off the premises to a distance not exc 50 mtrs including cleaning of reinforced concrete surface by air compressor complete all as specified and directed.

M&L for applying rust remover cum passivator to remove rust from existing reinforcement by using product as approved by GE, with density 1.01 Kg/ltr at 30 degree celsius and consumption : 0.2 Kg/Sqm/coat complete all as specified and directed. Note: The materials to be applied thoroughly on exposed rebars only with the help of a brush of suitable size. The area will be measured as length of bar x two times the dia of bar).

M&L for applying cement based polymer modified rebar corrosion protection system to existing reinforcement using cement based polymer modified rebar corrosion protection system with consumption : 3.75 kg/Sqm for two coats and Product requirements: carbonation resistance: 2 mm of chemical compound as approved by GE corresponds to 20 mm of normal mortar; bond strength > 1N / Sqmm according to ASTM C 882-78 complete all as specified and directed. Note: The material to be applied thoroughly on exposed rebars only with the help of a brush of suitable size. The area will be measured as length of bar x two times the dia of bar)

M&L for providing, mixing & applying two component Epoxy resin concrete Bonding coat on prepared RCC surfaces as per manufacturer's specification including prepartaion of surface throughly and cleaning complete where ever required with using Product: Sikadur®-32 LP of Sika or equivalent in Fosroc / Thermax as approved by GE with Consumption: 0.4 kg/Sqm and Product requirements: Complies with ASTM C 881-78, Type II Grade 2 Class B+C complete all as specified and directed.

M&L for providing by mixing and trowel application of prepacked, light weight, two component structural grade polymer modified fibre reinforced thixotropic cement mortar as approved by GE at an average thickness exceeding 10mm and upto 25mm to the prepared concrete surface in soffit of slabs, beam, columns, parapets, fins and facias at any height, including finishing of applied Polymer mortar as per the technical specifications and manufacturer's instructions complete all as specified and directed .