Providing the Weathering Course and Pressed Tiles at Chinnaiyankulam Primary School Ward No.50 in Kancheepuram Corporation

Dismantling the pressed tiles & Weathering Course including the clearing away and carefully stacking materials useful for re-use for any thickness of wall etc., complete

Treating Severe Dampness & Rising dampness in Walls: Providing and Applying two component flexible polymer modified acrylic cementitious waterproofing coating with a mix ratio of (5 Liquid :7 Powder) to the RCC surface or walls applied @ 2.2kg/m2 in 2 coats to achieve 1.2mm DFT, having Elongation at break >120% as per ASTM D 412, Tensile strength >1N/ mm2 as per ASTM D 412, Adhesion strength: 0.80N/mm2 as per ASTM D 4541, crack bridging upto 2mm as per ASTM C 836. The finished cost to include surface preparation & treatment of cracks completely as per specification. Followed by applying 15 mm thick dimensionally stable fibrous reinforced cementitious structural grade dual shrinkage Polymer Repair Mortar on internal wall damp patches @ 29kg/m2. The material having Compressive strength of 38 MPa at 28 days as per EN 12190, Adhesive Bond Test, >1.5 Mpa as per EN 1542, followed by Water curing by sprinkling water for 3 times a day for 5- 7 days. Ensure that removing internal wall plaster up to the brick level. Extend up to minimum 2 feet in wide in excess to the damp patches. clean the effected surface followed by waterproof coating should be applied across the entire surface and apply a coat of spatter dash bond coat over cured coating. The dashing shall consist of (1-part SBR : 1 Part cement: 2 part wash sand) mixed to thick slurry and kept well stirred prior to applying the Polymer Repair Mortar. The finished cost to include surface preparation completely as per specification.

Weathering Course with Concrete Broken Brick (S.I.No.278) & ( P & D) Data 54.Jelly 20mm gauge in pure slaked lime (no sand to be added) over roof slab,the proportion of brick jelly to lime being '32 to 12.5 well beated with wooden beaters for giving required slope and thickness as directed by the departmental officers etc., complete.-10 cum

Finishing the top of roof with one course of machine pressed tiles of size 200 mm x 200 mm x 20 mm of approved quality in Cement Mortar 1:3 (One part of Cement and Three part of Plastering Sand (P- Sand)), 12 mm thick mixed with water proofing compound conforming to ISS at 2% by weight of cement used and the joints pointed neatly to full depth of tiles with the same cement mortar mixed with red oxide and water proofing compound including curing etc., complete