Construction of protection wall at vacant space adjacent to A/m Ekambaranathar Matric.Hr.Sec.School at Kilpauk, Chennai

Amount

Earthwork excavation for foundation in all soils and sub soils and to full depth as may be required except in rock requiring blasting but inclusive of shoring, strutting and bailing out water wherever necessary and refilling the sides of foundation with excavated soil other than sand in layers of not more than 15 cm thick well rammed and consolidated and depositing the surplus earth within the compound in places shown by the departmental officers with an initial lead of 10m and lift of 2m and levelling the same etc.,complete complying with standard specifications and drawings.

Supplying and filling of crushed stone sand in layers of not more than 15cm thick in foundation, basement,including Well consolidation etc., complete complying with standard specification and as directed by the departmental officers.

Cement concrete 1:5:10 (One cement, Five sand and Ten aggregate) using 40mm gauge hard broken granite stone jelly for foundation and basement including dewatering if found necessary and laid in layers of not more than 15cm thick complying with standard specification.

Supplying and erecting steel centering including necessary supports for plane surfaces for Reinforced Cement Concrete works such as column footings, column pedestals, plinth beams, grade beams, staircase steps, etc. which require only nominal strutting using mild steel sheets of size 90cm x 60cm and 10 BG stiffened with welded mild steel angles of size 25mm x 25mm x 3 mm for boarding, laid over silver oak joists of size 10cm x 6.5cm spaced at about 75cm centre to centre or at suitable intervals etc. complete in all floors complying with standard specifcation. (Payment for centering shall be given after the concrete is laid)

Supplying and erecting centering for sides and soffits including necessary supports and strutting upto 3.29 M height for plane surfaces as detailed below in all floors with all cross bracings using Mild Steel sheets of size 90 x 60 cm and 10 BG stiffened with welded Mild Steel angle of size 25mm x 25mm x 3 mm for boarding laid over silver oak joists of size 10cm x 6.50 cm spaced at abote 90 cm centre to centre and supported by casurina props of 10cm to 13 cm dia spaced at not more than 75 cm centre to centre etc. complete complying with the standard specificaiton. (Payment for centering shall be given after the concrete is laid) Plane surface such as RCC square or rectangular column, top and bottom slab of sunshade, boxing sill slab etc.,

Providing and laying in position, standardised Concrete mix M-20 Grade in accordance with IS:456-2000, using 20mm and down graded hard broken granite stone jelly for all RCC items of works with minimum cement content of 325 kg/m3 and maximum water cement ratio 0.55, including admixture (plasticiser / super plasticiser ) in recommended proportion as per IS:9103 to accelerate, retard setting of concrete, improve workability without impairing strength and durability with about 7730kg. of 20mm machine crushed stone jelly and with about 7670 kg. of sand, but excluding cost of reinforcement grill and fabricating charges, centering and shuttering and also including laying, vibrating with mechanical vibrators, finishing, curing etc., complete (No separate payment will be made by the department for the excess usage of materials).Foundation and basement

Providing and laying in position, standardised Concrete mix M-20 Grade in accordance with IS:456-2000, using 20mm and down graded hard broken granite stone jelly for all RCC items of works with minimum cement content of 325 kg/m3 and maximum water cement ratio 0.55, including admixture (plasticiser / super plasticiser ) in recommended proportion as per IS:9103 to accelerate, retard setting of concrete, improve workability without impairing strength and durability with about 7730kg. of 20mm machine crushed stone jelly and with about 7670 kg. of sand, but excluding cost of reinforcement grill and fabricating charges, centering and shuttering and also including laying, vibrating with mechanical vibrators, finishing, curing etc., complete (No separate payment will be made by the department for the excess usage of materials). Ground floor

Supplying, fabricating and placing in position Mild Steel / Ribbed Tor Steel grills for all RCC works as per design given including cost of steel and G.I. binding wire in all floors etc. complete complying with standard specification. (Contractor has to make his own arrangements for the supply of steel and binding wire)

Brick work in Cement Mortar 1:6 using best quality II class ground moulded chamber burnt bricks of size 9" x 4-3/8" x 2-3/4" for foundation and basement including curing, etc., complete complying with standard specifiction. In ground floor

Supplying and fixing of M.S.grill of approved design for open courtyard, grill, grill work to doors and window openings 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.

Brick partition walls of 11.50 cm thickness using best quality 2nd class Ground Chamber Burnt Bricks of size 9" x 4-3/8" x 2-3/4" in cement Mortar 1:3 (One cement and three sand) including curing, Plastering etc., complete and as directed by the departmental officers.

Plastering with Cement Mortar 1:5 (One cement and Five sand), 12mm thick mixed with Bonding agent Cebex112, Zydex -Zycrete 2X or other Equalent compound conforming to BIS at 200ml of One cement bag (50kg) for increased workability and air entrainment in all floors including curing etc. complete complying with standard specification and as directed by the departmental office.

Painting two coats of newly plastered wall surface with ready mixed plastic exterior emulsion paint of first class quality and of approved colour over a priming coat including through scrapping, clean removal of dirt, and including necessary plaster of paris putty, wherever required etc., complete complying with standard specification.

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.)

Sub Total

P K SUDARVEL PANDIAN