Special repairs to leaky roof and other works for 3 class room building in Government Girls Higher Secondary Secondary School at Padappai in Kancheepuram District.

Dismantling, clearing away and carefully stacking materials useful for re-use for Pressed tiles & weathering course as directed by the departmental officers

Weathering course in brick jelly lime concrete using broken brick jelly of size 20mm uniform gauge in pure slaked lime (no crushed stone 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 specification and as directed by the deparmental officers.

Finishing the top of roof with one course of machine Pressed Tiles of 230mm x 230mm x 16 mm to 18mm of approved quality set in Cement Mortar 1:3 (One Cement and Three Crushed stone 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 specification and as directed by the departmental officers.

110 mm dia PVC Rain water downfall pipe

Providing rain water recharging collection pit having a size of 900mm dia to a total height of 1200mm is 150mm above ground level and 1050mm below ground level with necessary augar bore of 300mm dia to a depth of 3000mm from bottom level of collection pit and filled with 20mm HBG stone jelly inside of augar bore. The sides of collection pit provided with RCC Well ring of inner size of 900mm x 300mm x 50mm with 6mm reinforcement on both direction at 200 mm c/c using RCC 1:1/2:3 (one cement, one and half sand and three HBG jelly). The top of collection pit is finished with 50mm thick cover slab, The collection pit is filled with course river sand at top, 20mm HBG stone jelly at middle and 40mm HBG stone jelly at bottom of a depth of 300mm, 450mm and 450mm respectively. The rate is including the cost of RCC well ring and filling materials, RCC cover slab, drilling hole and labour charges for erecting the well ring etc., and as directed by the departmental officers.

Plastering with Cement Mortar 1:5 (One cement and Five Plastering sand), 12mm thick in all floors including mortar plasticizer at 200ml per 50Kg of cement used, curing etc. complete complying with standard specification and as directed by the departmental officers.

Painting New Plastered Wall Surface with Two finishing coats of ready mixed (Emulsion) of approved quality and colour over one coat priming coat in all floors including the cost of primer etc., complete complying with standard specification and as directed by the departmental officers.(The make, quality and colour of paint should be got approved by the Executive Engineer before use on works.)

SUB TOTAL

GST @ 18 %