Special repairs to HSC at Erukambattu

Dismantling clearing away and carefully stacking materials useful for reuse for any thickness for weathering course and pressed tiles etc., complete complying with standard specifications

Weathering course in brick jelly lime concrete using broken brick jelly of size 20mm uniform gauge in pure slaked lime (no M-sand to be used) to the proportion of brick jelly to lime being 32:12.5 by volume and laid over the RCC roof slab in a single layer of required slope and finished by beating the concrete with wooden beaters of approved pattern, keeping the surface constantly wet by sprinkling lime jaggery water, etc., complete as per standard specifications and as directed by the deparmental officers.

Finishing the top of roof with one course of machine pressed tiles of size 230mm x 230mm x 20mm of approved quality set in Cement Mortar 1:3 (One Cement and Three M-Sand) 12mm 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 complying with standard specifications and as directed by the departmental officers.

Brick work in Cement Mortar 1:5 (One Cement and Five M-Sand) using best quality Burnt Clay Brick of size 9" x 4 3/8" x 2 3/4" with class designation of 7.50 conforming to IS 1077-1992 for foundation and basement including Cost of Mortar Plasticizer curing, etc., complete complying with standard specifications and as directed by the departmental officers. Brickwork shall be done as per IS 2212-1991 adopting English Bond generally. Other type of bond shall be done as directed by the Executive Engineer in charge.

Fabrication, Supply and Fixing in Position fine wiremesh netting inclusive of cost of red oxide primer etc., complete complying with standard specifications and as directed by the departmental officers.

Paving the floor with best quality Nano Polished vitrified Tiles of following size and variety conforming IS 15622 with water absorbtion less than 0.08% of approved colour and shade laid over cement mortar bed of 20mm thick in cement mortar 1:3 (one cement and three crushed stone sand) with required Cement Slurry and Mortar Plasticizer in all floors and the top pointed with Water Resistant Tile Epoxy Grout etc., complete complying with standard specifications and as directed by the departmental officers. (The make and brand of the tiles should be got approved by Executive Engineer before use on works)

Flooring with Plain colour ceramic tiles of size 305 x 305 x 6 mm laid over 20 mm thick in cement mortar 1:3 (One Cement and Three M-Sand) base mortar over the existing slab / floor including cutting the tiles to the required size with special cutter wherever necessary, laying in position and pointing with white cement mixed with colouring pigment at the rate of 0.30 Kg. / sq.m. etc., complete complying with standard specifications. (The make and brand of the tiles should be got approved by the Executive Engineer before use on works)

Supplying and fixing Cup-board Shutter using termite / water proof plywood of 19mm thick over which laminated sheet of 0.80mm thick fixed inside the shutter and 1mm thick fixed in the outside of the shutter using fevicol along with necessary furniture fittings, such as, hydraulic hinges, tower bolt, handles, multi purpose locks etc., as directed by the Departmental Officers. The design pattern, water proof plywood, laminate sheet and other materials should be got approved from the Executive Engineer befoe use on work.

complete complying with standard specifications and as directed by the deparmental officers. All the Alu. Section are to be anodised with matt finish under electricaly controlled conditions in accordance with IS 1868/1962 for an average anodic film thickness of 15 microns etc., complete. Aluminium sections and furniture fittings shall be got approved by the Executive Engineer incharge. (Single leaf)