Tirumala Tirupati Devasthanams Tender

Providing and laying water proofing cum heat insulation treatment with Home Shield Polurethane (PU) Roofkoat (Berger or equivalent) over existing roof slab, all as directed by Engineer-in-charge and as per the following specification: Surface Preparation 1.Clean the Surface thoughly to make it smooth and free of any foreign material 2.Water pounding test for Mother slab to identify the leakages points before starting the water proofing treatment work 3.Injection grouting should be done for all leakages point indentified and inject the cement slurry dmixed with injection grout admixture, using pressure grouting machine till the rejection of material from the nozzle. 4.Reparing od construction joints by chasing with cutting machine and fill the same with polymerized mortor in C.M(1:4) admixture with Advanced Latex plus as per the specified company instructions.

Conveyance of excavated surplus earth/debris to a distance 2 kms from the site of work at the place specified by the Engineer-in-Charge including loading and unloading etc., complete as directed during execution.

SPECIALISED INJECTION GROUTING WITH CEMENT AND FREE FLOW ADDITIVES: a) Drilling of holes with power drilling machine to the required depth [12mm to 14mm dia holes] b) Fixing of Rubber Nozzles with cement and quick setting, Rapid hardening compound putty - Rapidstrong qs or equivalent. c) Grouting of holes with 140 PSI Grout pump with cement slurry mixing with Specialized Free flow, Non-shrink Grout additive - RAPIDSTRONG GROUT ADMIX (Armstrong ) /POWER n GROUT ADMIX (EBT) / CEBEX 100 (Fosroc )/ ZORIGROUT GP1 (PMCC) / SIKAGROUT ANCHKOR NSQ (Sika) /WATERSHIELD GROUT ADMIXi.e., 250 Grams per bag of 50 Kgs Cement add required water to make slurry form.

d) After completion of grouting, Remove the Rubber nozzles e) Later sealing of the hole with polymer cement putty - ROOFCRETE AR (Armstrong ) / ZORIGROUT CMG (PMCC) / POWER n GUARD ARM (EBT) / WATERSHIELD AR / Fosroc NITOBOND AR + Cement. * FOR STRENTHENING AND SEAL THE POROSITY OF THE CONCRETE TO ARREST THE LEAKAGES, DAMPNESS, LEAKAGES OF CONSTRUCTION JOINTS: (FOR TERRACE /CEILING / RCC RETAINING WALLS BASEDMENT FLOORINGS / WATER TANKS / RESERVOIRS / TOILETS etc.,)

SPECIALISED POLYSULPHIDE / POLYURETHANE / HIGHBRED ACRYLIC /SEALANT TREATMENT TO THE OLD / EXISTING EXPANSION JOINT IN THE TERRACE, COLUMN, BEAM.

Rupees Nineteen lakhs Eighteen thousand Five hundred fifty seven and paise Eighteen only