Tender For Civil Work - Special Repairs To Leaky Roof, Painting, Doors, Windows And Other Repair Works In Govt High School At Kilampakkam In Thiruvallur District.; 1 Dismantling, clearing away and carefully stacking materials useful for re-usefor any thickness of Pressed tiles & weathering course. 2 Dismantling, clearing away and carefully stacking materials useful for re-usefor any thickness of Floor finish and dadooing walls in cement mortar with mosaic tiles / glazed tiles / cuddapah slabs. 3 Clean removal of Cement plaster from walls. 4 Relaying the Cement Concrete 1:5:10 (One Cement, Five sand and Ten hard broken stone jelly) using 40 mm gauge hard broken granite stone jelly for foundationincluding dewatering wherever necessary and laid in layers of not more than 15 cm thick well rammed, consolidated and curing etc. complete complying with standard specification. 5 Renewing the damaged floor with best quality Stain Free Nano Polish Vetrified Tiles of size 600 x 600 x 8mm of approved colour, shade and quality laid in cement mortar 1:3 (one cement and three M-sand) 20mm thick in all floors and the top pointed with the white cement mixed same colour pigments etc., complete complying with standard specification.(The make and brand of the tiles should be Johnson / Kajaria / Somany / Nitco / RAK which has to be got approved by Executive Engineer before use on works) 6 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. 7 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. 8 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. 9 Replastering and finishing the exposed surface of all RCC items of work such as slabs, beams, sunshades, facia, canopy slab, staircase waist slab, landing slab etc., with Cement Mortar 1:3 (One Cement and Three Sand) 10mm thick including hacking the surfaces, providing cement mortar nosing, beading for sunshades, staircases, steps, landing slabs and curing, etc., in all floors complying with standard specification and as directed by the departmental officers. 10 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. 11 Three Leaves 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 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. 14 Repainting old iron works such as steel doors, windows, ventilators, window bars, balustrades etc. with two coats of best approved first quality and colour in all floors etc., including cost of scrapping charges complete complying with standard specification. (The make, quality and colour of paint should be got approved by the Executive Engineer before use on works). 15 Renewing and refixing in position best approved of BIS quality PVC rain water down fall pipes having a pressure of 4 kg. / sq.cm including cost of necessry PVC shoe, PVC bend, cast iron gratings of required diameter and special clamps, brass screws, nails, etc., and fixing of cast iron gratings at junction of parapet and the RCC roof slab including finishing neatly etc., complete. The rate shall be inclusive of cast of removable cast iron grating. The PVC pipe shall be fixed in wall with special type of U clamp at the centre of the pipe line in addition to those for more than 3.0 metre pipe length, etc., complete complying with standard specification. 16 110mm dia PVC Pipe 17 Sub Total Amount for above all items (excluding GST) 18 GST 18% for above SubTotal Amount
