Kerala Industrial Infrastructure Development Corporation Tender

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 Engineer-in-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.

Cutting U-shape groove size 24x24 mm and then filling the groove with cement mortar 1:3 ( 1 Cement : 3 fine sand) and fixing GI sheet 0.4 mm thick (300 mm wide) and fixing in U shaped groove, revetting the GI sheet existing roo fby rivetting 30 cm c/c, watering ,curing, all labour charge ,scaffolding etc .complete.

Closing of existing rain water drain hole, including chipping of edges and inserting gunny bag dipped in thick cement slurry for thickness of 10 cm and making the same to tight enough to prevent downward movement of gunny bag , filling the hole above with Cement Concrete 1:1.5:3 using coarse aggregates of downgrade 12mm, for keepingthe top level 20mm above roof level watering, curing etc complete as per the direction of Engineer-in-Charge.