Nagercoil Corporation Maintenance of Storm Water drain in Puthukudiyiruppu and Providing Culvert in Kavimani Street at Ward No.15

Dismantling ,clearing away and carefully stacking materials useful for re-use for any thick ness of walls Dismantling of Plain cement concrete

Earth work excavation and depositing on bank with initial lead of 10metres and lift of 2metres in all kinds of soil except mediumrock, dense medium rock and hard rock requiring blasting including refilling the sides of foundation with excavated earth in layers of 15cm thick, watering and consolidation and depositing the surplus earth with in the compound in places as shown by the departmental officers with initial lead and lift. cleaning,levelling the site etc,. complete complying with standard specifications.(TNBP No.20B)

Cement Concrete 1:4:8 (One Cement, Four crushed stone sand and Eight broken stone jelly) using 40mm size hard broken stone jelly excluding cost of centering shuttering reinforcement grills and fabrication charges but including curing etc. complete and as directed by the departmental officers.

Providing steel centering for sides and soffits including supports and strutting upto 1:10/1:20 up to 3.29m height for plain surfaces such as RCC slabs, rectangular beams, Tee beams, bed blocks, Culvert body walls, deck slabs, retaining walls, staircase, Landing slab, landing beams, canopy etc., with all cross bracings using mild steel sheets of size 90mm x60mmx10gauge stiffened into welded mild steel angles of size 25mmx6mm for boarding laid over silver oak (Country wood) joists of size 10cmx 6.5cm spaced at 90cm centre to centre and supported by casurina props of 10cm to 13cm dia spaced at 15cm c/c including cost of nails, ropes, all labour charges and incidental charges etc. complete complying with standard specification.(TNBP Spl. No.154 A)

Plain Cement Concrete 1:2:4 (one cement, two crushed stone sand and four hard broken stone jelly) using 20mm jelly for wearing coat including laying, compacting, finishing and curing, etc., complete as per standard specificatins and as directed by the departmental officers.

Providing and laying in position, standardised concrete Mix M-20 Grade by insitu machine mix concrete adopting weighing batch method in accordance with IS 456 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 of 0.55, including admixture (plasticiser / super plasticiser) in recommended proportions as per IS:9103 to accelerate, retard setting of concrete, improve workability without inspiring strength and durability with about (5 Cu.m) 7730 kg. of 20mm machine crushed stone jelly and with about (3.3 Cu.m) 5156 kg. of 10-12mm machine crushed stone jelly and with about (4.79 cu.m) 7670 kg. of crushed stone sand, but excluding cost ofreinforcement grill and fabricating charges, centering and shuttering and also including laying,vibrating with mechanical vibrators, finishing, curing, etc. and providing fixtures like fan clamps in the RCC floor/ roof slabs wherever necessary without claiming extra, etc.,complete 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 standards. (No separate payment will be made by the Department for the excess usage of materials).

Supplying, fabricating and placing in position Mild Steel / Ribbed Tor Steel reinforcement grills of all variety like HYSD/CTD/TMTand all grade like Fe 500, Fe550D, Fe 500 D etc., for all RCC works as per design given including cost of steel reinforcement and G.I. binding wire, wastage etc. complete complying with standard specification and as directed by the departmental officers.(Contractor has to make his own arrangements for the supply of steel reinforcement and binding wire)

Plastering the surface of walls with Cement Mortar 1:4 (One cement and Four plastering sand), 20mm thick in all floors including mortar plasticizer at 200ml per 50Kg of cement used, curing etc., complete complying with standard specification and as directed by the departmental officers.

Supply and fixing of M.S Grills with Doors and Windows with one coat of Red oxide with Primer including all costs such as welding,grinding and fabrication charges, cost and conveyance of all materials to site etc,complete as per standard specification.