Reconstruction of storm water drain at Kattor street Phase 1 in ward No 6, East Zone.

Amount

Desilting the Exiting Channels/Drain with initial lead and lift deploying earth moving machineries and forming bund on either side and depositing the earth/silt on bank including clearence

Dismantling the old damaged cement concrete Walls compacted,etc., complete complying with standard specification.

Earth work excavation for foundation in Hard stiff clay, stiff black cotton, hard red earth, shales murram, gravel, stoney earth and earth mixed with small size boulders SS.20B and Sand, silt or other loose soil, wet sand or silt not under water, light black cotton soil, sandy loam ordinary soil and to full depth as may be directed wherever necessary refilling the sides of foundation with excavated soil other than sand in layers of 15cm thick well rammed and cleaning and levelling the site etc.,complete

Plain Cement concrete 1:4:8 (one cement, four sand, eight aggregate) using 40mm gauge hard broken granite stone jelly for foundation including dewatering if found necessary and laid in layers of not more than 15cm thick and compacted,etc., complete complying with standard specification.

Supplying and erecting steel centering including necessary supports for plane surfaces for 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

Cement concrete 1:3:6 (one cement, three sand and six aggregate ) using 20mm hard broken granite stone jelly for all CC items of work excluding centering, shuttering, and cost of reinforcement grill but including curing finishing etc., complete fixtures in CC works wherever necessary as directed by departmental officer etc., complete.

Plastering with cement mortar 1:5(one cement and five sand by volume) 12mm thick for all internal/external surfaces like super structure, rainwater, ducts, elevation in all floors complying with standard specifications.

Supply and delivery of the following materials approved brand as per list with ISI marking and an approved by Corporation officers.

1. 63 mm dia PVC pipe of 6 kg/cm2

2.63 mm dia PVC elbow

3.63 mm dia PVC Tee

4.63 mm dia PVC coupling

5.63x20 mm dia PVC saddle

6.63 mm dia PVC end cap

Add :- GST @ 18%

thirumoorthiconstructions (BID ID -1137212)

SHRI MURUGAN AGENCIES (BID ID -1139543)

JAYALAKSHMI BUKDERS (BID ID -1139456)

sakthivel and co (BID ID -1139245)

V BAGYAM (BID ID -1139672)

M RAMARAJ (BID ID -1139562)

SRI SPS ASSOCIATES (BID ID -1139031)