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Tender For Civil Work - Special Repairs To Leaky Roof, Doors, Windows And Other Repair Works In Government Higher Secondary School At Thiruvalangadu In Thiruvallur District.; 1 Dismantling, clearing away and carefully stacking materials useful for re-usefor any thickness of Pressed tiles & weathering course. 2 Relaying the Weathering course in brick jelly lime concrete using broken brick jelly of size 20mm uniform gauge in pure slaked lime (no 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. 3 Renewing the damaged 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 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. 4 Renewing the damaged Steel doors with following specification.MS angle of size 40x40x6mm at 3.5 kg/m used for outer frame and MS Angle of size 35x35x5mm at 2.6 Kg/m for the shutter frame.Stiffeners with 32x6mm at 1.5 Kg/m MS Flat is provided as the lock rail of the door and welded intact on both ends to the shutter frame.18 G CR Sheets of best quality is laid as panel in the shutter frames.18x5mm at 0.70 kg/m MS flat is welded over the 32x6mm at 1.50kg/m MS Flat on the rear side of the door, sandwitching the CR Sheet for rigidity.Additional stiffeners with 18x5mm at 0.7 Kg/m MS flats are provided diagonally on the rear side of the shutter. 300mm length of highes 4 Nos. for shutters is provided.6 Nos. of hold fasts 200mm length spliced at the ends are welded to the outer frame of the door. 250mm lenght of Tower bolt 2 Nos., one at the top and the other at bottom are provided.250x16mm size of One aldrop is provided in case of double leaf door at lock rail section in the door. Additional provision for locking arrangements for lock is provided on the rear side of the door at an appropriate placeand 2 Nos. MS Handles of Heavy duty. MS flat 32x4mm at 1.10 Kg/m is provided on the edge of the one shutter to conceal the gap between the two shutters. A tie bar is provided at the bottom of the outer frame to prevent twisting of the frame during transportation and fixing.All members are given one coat of red oxide primer as directed by the departmental officers. The rate includes cost of all materials, labour charges, transportation, taxes and all other incidental charges, etc., complete. 5 Double Leaf 6 Renewing the damaged steel windows with the following specifications.Outer frames of windows made of "Z" section F7D of size 33 x 25 x 3mm at 1.419 Kg/m and mullion "J" section (F4B) of size 46x25 x 3mm at 2.28 kg/m and shutter section of made of F7D of 33 x 25 x 3mm at 1.419 Kg/m as specified in IS 7452/1990. Each openable shutter should not exceed a width of 600mm to enable separate operations and easy maintenance. The panel of the shutters to be covered with 18 gauge cold rolled sheet of superior quality and welded intact with shutter frames. Horizontal stiffeners using 18x5mm MS flat at 0.70 Kg/m at 3 Nos.for each shutter and additional diagonal stiffeners of the same MS Flats at all the four corners of each shutters to the suitable length welded to the shutters, for holding the CR sheets in position firmly.4 numbers of sturdy hinges and Two number of handle-cum-latch of special type made with 18x5mm MS Flats are revetted to the shutters at an appropriate height in window.Suitable opening is left for its easy operation. A stopper square rod for handle is provided in the mullion section at suitable place to catch the window handle.Each window shutter having an adjustable stay made out of 18x5mm at 0.70 kg/m MS flat of length 320mm with three adjustable position.A matching peg is provided in the outer frame of the window at suitable place.4 Nos. of hold fasts of 120mm length spliced at the nds are welded to the out frame of the window by using MS flat of 18x5 mm at 0.70 kg/m, welded to the shutter at two place equivalent from each other from top and bottom of the shutter.An MS square bar of 12mm size is welded to the inner face of the window at an equal interval not exceeding 100mm edge to edge between them.All members are painted with one cat of anti-corrosive red oxide primer as directed by the departmental officers.All sections should be in confirmed with IS7452/1990. The cost includes cost of all materials, labour charges and other incidental charges, etc., complete. 7 Two Leaves 8 Three Leaves 9 Renewing the damaged M.S.grill of approved design for grill gate, grill work to doors and windows openings ramp etc., using necessary mild steel flats for inner and outer members which should be fixed on edges including priming coat of best approved quality red oxide primer etc., complete complying with standard specification. 10 Replastering with Cement Mortar 1:5 (One cement and Five sand), 12mm thick in all floors including curing etc. complete complying with standard specification and as directed by the departmental officers. 11 Repainting two coats of old plastered wall surface with ready mixed plastic exterior emulsion paint of first class quality and of approved colour without primer including thorough scrapping, clean removal of dirt, and including necessary plaster of paris putty, wherever required etc., complete complying with standard specification. 12 Repainting two coats of old plastered wall surface with ready mixed plastic Interior emulsion paint of first class quality and of approved colour without primer including thorough scrapping, clean removal of dirt, and including necessary plaster of paris putty, wherever required etc., complete complying with standard specification. 13 Painting new iron works such as steel doors, windows, ventilators, window bars, balustrades etc., with two coats of best approved first quality and colour of synthetic enamel paint over the existing red oxide priming coat in all floors excluding cost of priming coat etc., complete complying with standard specification. (The make, quality and colour of paint should be got approved by the Executive Engineer before use on works.)
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