Nagercoil Corporation Construction of Retaining wall in vaithiyanathapuram channel karai (Phase II) and Culvert at Sannathi street in ward no.40

Dismantling RCC by manual / by using deploying machineries

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)

Cement Concrete 1:3:6 (One Cement, Three crushed stone sand and Six broken stone jelly) using 20mm size hard broken stone jelly for dummy columns,etc., excluding cost of centering shuttering reinforcement grills and fabrication charges but including curing etc. complete and as directed by the departmental officers. ( Dummy columns should be at least 1 metre height) -Mixing by manual means

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 contenet of 325Kg/ cum and maximum water cement ratio of 0.55 including admixture (Plasticiser / super plasticiser) in recommended proportions as per IS 9103 to accelerate, related setting of concrete, improve workability without imparing strength and durability with about (5.0cum), 7730Kg of 20mm machine crushed stone jelly and with about (3.3 cum), 5156kg of 10 - 12mm machine crushed stone jelly and with about (4.79cum) 7670 kg of Crushed Stone Sand (M- Sand), but excluding cost of reinforcement grill and fabricating charges centering and shuttering but 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 cost etc., complete complying with standard specification and as directed by the departmental officers -

Suppling and fabricating and placing in position MS (or) R.T.S. bar for reinforcement to all RCC works as per the design given including cost of steel and binding wire also in all floors.

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.