Grouting of Leakage/ Seepage points in underground sections Tunnels Stations

NOTE: 1.Evaluation will be done by excluding GST Amount. 2.The output GST paid by the bidder shall be reimbursed by CHENNAI METRO RAIL LIMITED on production of the documentary evidence. "

SUMMARY OF PRICE BID

Description of Work / Item(s)

Amount

Grouting (without scaffolding in points at stations/tunnels)

1a) Cementitious grout

Injection to be done by fixing the nozzles at random and thorougly to the structure and specially to all type of joints , Drill hole up to the half of the depth of the concrete and fix GI nozzles at c/c as per manufacturer requirement from the interior surface of walls / tunnel structures / station building walls with the help of quick setting chemical / cementitious compound . Inject cement slurry enriched with Non - Shrink grouting compound through the fixed with manufacturer recommneded pressure with the help of hand operated or mechanically gouting pump . The grouting material for injection grouting shall be as below : 1) Cement - As recommended by the manufacturer (2) Expanding grout admixture for non shrink purpose (3) Water Cement ratio as recommended by weight . The work shall complete in all respects in line with manufactrures recommendations / specifications .( The rate shall include procurement and supply of required materials , packers, transportation to site , storage , lifing , shifting ,safety , providing PPE's to the workers / staffs , barricading of working area , drilling and fixing of nozzles , necessary working platform , application of grouting material , removal of nozzles , finishing good of concrete surface as per satisfaction of Engineer In charge (EIC) with all tools and tackles . The rate also include necessary plaforms where ever required )

1b) Epoxy grout or equivalent (all inclusive)

Fixing GI / MS nozzles of at least 6 mm dia with epoxy adhesive. The crack mouth has to be sealed with the same adhesive . The flexible holes which are already fixed to nozzles are opened and fixed to the injection gun , low viscous 2 or 3 component injection resin ( for moist or wet concrete) of approved manfactrures shall be injected in to the cracks . The mixed material shall be consumed within the pot life of the material . After grouting operations , the nozzle shall be cured for smooth finishing of concrete surface . The work shall complete in all respects in line with manufactrures recommendations / specifications .( The rate shall include procurement and supply of required materials , transportation to site , storage , lifing , shifting ,safety , providing PPE's to the workers / staffs , barricading of working area , drilling and fixing of nozzles , necessary working platform , surface preparation and application of grouting material , removal of nozzles , finishing good of concrete surface as per satisfaction of Engineer In charge (EIC) with all tools and tackles . The rate also include necessary plaforms where ever required )

1c) PU grout or equivalent (all inclusive)

Drilling and fixing nozzles of at least 6 mm dia for a depth of half the member thickness at manufacturer recommended centre to centre distance or as instructed by the Engineer In charge with the help of cementitious quick fix product . Cleaning the cracks by injecting high pressure air through the nozzles. Pressure grouting with low viscocity epoxy injection resin with help of injection gun or similar equipment at a steady pressure as recommeded by the manufacturers like ( SIKA/FOSROC/MYK/PIDILITE/BASF or Equivalent ) shall be injected in to the cracks . The work shall complete in all respects in line with manufactrures recommendations / specifications .( The rate shall include procurement and supply of required materials , transportation to site , storage , lifing , shifting ,safety , providing PPE's to the workers / staffs , barricading of working area , drilling and fixing of nozzles , necessary working platform , surface preparation and application of grouting material , removal of nozzles , finishing good of concrete surface as per satisfaction of Engineer In charge (EIC) with all tools and tackles . The rate also include necessary plaforms where ever required )

Grouting (working at heights with scaffolding in points at stations/tunnels)"

2a)Cementitious grout or equivalent (all inclusive)

Injection to be done by fixing the nozzles at random and thorougly to the structure and specially to all type of joints , Drill hole up to the half of the depth of the concrete and fix GI nozzles at c/c as per manufacturer requirement from the interior surface of walls / tunnel structures / station building walls with the help of quick setting chemical / cementitious compound . Inject cement slurry enriched with Non - Shrink grouting compound through the fixed with manufacturer recommneded pressure with the help of hand operated or mechanically gouting pump . The grouting material for injection grouting shall be as below : 1) Cement - As recommended by the manufacturer (2) Expanding grout admixture for non shrink purpose (3) Water Cement ratio as recommended by weight . The work shall complete in all respects in line with manufactrures recommendations / specifications .( The rate shall include procurement and supply of required materials , packers, transportation to site , storage , lifing , shifting ,safety , providing PPE's to the workers / staffs , barricading of working area , drilling and fixing of nozzles , necessary working platform , application of grouting material , removal of nozzles , finishing good of concrete surface as per satisfaction of Engineer In charge (EIC) with all tools and tackles . The rate also include necessary scaffolding / stagings / plaforms where ever required )

2b)Epoxy grout or equivalent (all inclusive)

Fixing GI / MS nozzles of at least 6 mm dia with epoxy adhesive. The crack mouth has to be sealed with the same adhesive . The flexible holes which are already fixed to nozzles are opened and fixed to the injection gun , low viscous 2 or 3 component injection resin ( for moist or wet concrete) of approved manfactrures shall be injected in to the cracks . The mixed material shall be consumed within the pot life of the material . After grouting operations , the nozzle shall be cured for smooth finishing of concrete surface . The work shall complete in all respects in line with manufactrures recommendations / specifications .( The rate shall include procurement and supply of required materials , transportation to site , storage , lifing , shifting ,safety , providing PPE's to the workers / staffs , barricading of working area , drilling and fixing of nozzles , necessary working platform , surface preparation and application of grouting material , removal of nozzles , finishing good of concrete surface as per satisfaction of Engineer In charge (EIC) with all tools and tackles . The rate also include necessary scaffolding / stagings / plaforms where ever required )

2c)PU grout or equivalent (all inclusive)

Drilling and fixing nozzles of at least 6 mm dia for a depth of half the member thickness at manufacturer recommended centre to centre distance or as instructed by the Engineer In charge with the help of cementitious quick fix product . Cleaning the cracks by injecting high pressure air through the nozzles. Pressure grouting with low viscocity epoxy injection resin with help of injection gun or similar equipment at a steady pressure as recommeded by the manufacturers like ( SIKA/FOSROC/MYK/PIDILITE/BASF or Equivalent ) shall be injected in to the cracks . The work shall complete in all respects in line with manufactrures recommendations / specifications .( The rate shall include procurement and supply of required materials , transportation to site , storage , lifing , shifting ,safety , providing PPE's to the workers / staffs , barricading of working area , drilling and fixing of nozzles , necessary working platform , surface preparation and application of grouting material , removal of nozzles , finishing good of concrete surface as per satisfaction of Engineer In charge (EIC) with all tools and tackles . The rate also include necessary scaffolding / stagings / plaforms where ever required )

DHARANI GEOTECH ENGINEERS

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MP INTEGRATED ROOFING PVT LTD

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DHARANI GEOTECH ENGINEERS

Rajam engineering contractors

MP INTEGRATED ROOFING PVT LTD

Pioneer Waterproofing