Corporation Of Chennai Tender

Supplying, fabricating and placing in position Ribbed tor steel (RTS) for all RCC works as per design given including cost of steel and GI binding wire (18 G) in all floors etc., complete complying with standard specification (contractor has to make his own arrangements for the supply of steel and binding wire)

Supplying and erecting centering for sides and soffits including supports and structting upto 3m high for plane surfaces such as RCC coloumns top and bottom slabs of boxing. sill labs sunshades etc. with necessary facia using mild steel sheets ofsize 90x60cm and 10 gauge stiffened with welded mild steelangles of size 25x25x3mm for boarding laid over silverOak(country wood) joists of size 10x6.5cm spaced at about 90cm centre to centre and supported by casuarina props of 10 to 13cm dia spaced at 75cm centre to centre etc. complete.

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 m,aximum water cement ration of 0.55, including admixture (Plasticiser/Superplasticier) in recommended proportions as per IS:9103 to accelerate ,retard setting of concrete,improve workability without impairing strength and durability with about (5.0 cum) 7730 kg of 20 mm machine crushed stone jelly and with about (3.3 cum) 5156 kg of 10-12mm machine crushed stone jelly and with about (4.79 cum) 7670 kg of sand, nut excluding cost of reinforcement grill and fabricating charges,centering and shuttering and also including laying,vibrating with mechanical vibrators,finishing,curing,etc and providing complying with standard specification and as directed by the departmental officers. The coarse and fine aggregates to be used should comply with the requirements of IS Standrands.(No separate payment will be made by the Department for the excess usage of materials)