Water Treatment & STP Tenders

Providing and laying integral cement based water proofing treatment including preparation of surface as required for treatment of roofs, balconies, terraces etc consisting of following operations: a) Applying a slurry coat of neat cement using 2.75 kg/sqm of cement admixed with water proofing compound conforming to IS. 2645 and approved by Engineer-in-charge over the RCC slab including adjoining walls upto 300 mm height including cleaning the surface before treatment. b) Laying brick bats with mortar using broken bricks/brick bats 25 mm to 115 mm size with 50% of cement mortar 1:5 (1 cement : 5 coarse sand) admixed with water proofing compound conforming to IS : 2645 and approved by Engineerin-charge over 20 mm thick layer of cement mortar of mix 1:5 (1 cement :5 coarse sand ) admixed with water proofing compound conforming to IS : 2645 and approved by Engineerin-charge to required slope and treating similarly the adjoining walls upto 300 mm height including rounding of junctions of walls and slabs. c) After two days of proper curing applying a second coat of cement slurry using 2.75 kg/ sqm of cement admixed with water proofing compound conforming to IS : 2645 and approved by Engineer-in-charge. d) Finishing the surface with 20 mm thick jointless cement mortar of mix 1:4 (1 cement :4 coarse sand) admixed with water proofing compound conforming to IS : 2645 and approved by Engineer-in-charge including laying glass fibre cloth of approved quality in top layer of plaster and finally finishing the surface with trowel with neat cement slurry and making pattern of 300x300 mm square 3 mm deep. e) The whole terrace so finished shall be flooded with water for a minimum period of two weeks for curing and for final test.“All above operations to be done in order and as directed and specified by the Engineer-in-Charge : With average thickness of 120 mm and minimum thickness at khurra as 65 mm.

Material & labour for rendering 15 mm thick in cement mortar 1:4 over RCC Roof mixed with water proofing compound @ 150ml per bag of cement or manufacturer instruction complete all as specified and as directed. (Note;- water proofing compound shall be measured and paid separately as supply only)

Providing and applying crystalline mortar by mixing in the ratio of 4.5 :1 (4.5 parts crystalline mortar : 1 part water) for the treatment of faultyconstruction joints, cracks, tie rod holes and spalled & honey combed surface of RCC underground structures like basement, water tanks, bridge deck etc. to ensure water tightness. The crystallie mortar shall conform to the EN 1504-3 having compressive strength Class R4 > 45 MPa and adhesive bond strength Class R3 > 1.5 MPa. The work shall be carried out all complete as per specification and the direction of the Engineer-In-Charge. The product performance shall carry guarantee for 10 years against any leakage.23.23.1 For sealing cracks and faulty construction joints, routedout/making U-shape groove size 25x 25mm and then primed the area with integral crystalline slurry @0.05kg/ running metre and while the surface is tacky filled the groove upto surface with crystalline mortar @1.50kg/ running metre. Once crystalline mortar is touch dry then finally applied two coats of integral crystalline slurry @0.05kg/running metre per coat.

Supply of Alumina-Ferric, (Grade-IV) of Bengal Chemical Pharmaceutical Ltd. A Govt. of India Enterprise of similar make as per ISI 299/1898 Water soluble Aluminum compounds as Al2 percent by mass-16.0 Min. in terms with IS 299:1989 of amended for using as coafulant in Water Treatment Process within Balupur Water Treatment Plant Premises under Malda Division, PHE Dte. In the district of Malda. (Loading, Unloading GST & CESS Including).