Manhole Raising of UGSS at Ward no 01 to 15 in Sriperumbudur Municipality

Steel centering for sides and sofits including supports and strutting upto 3.00m height for plain surface such as RCC slab, rectangular beams, T or L beams lintels bedblocks, staircase waist and landing slab landing beams, canopy etc., with all cross bracings using mild steel sheets of size 90cm x 60cm x 10 gauge stiffened with welded mild steel angles of size 25mm x 25mm x 3mm for boarding laid over silver oak (country wood) joist of size 10cm x 6.50cm spaced at about 90 cms c/c and supported by steel props spaced at 75cm c/c etc., complete.

Providing and laying in position Standardised Concrete Mix M-30 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 400Kg/ cum and maximum water cement ratio of 0.45 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 - The Coarse and Fine aggregates to be used should comply with the requiremnents of IS standards.

Supply and fabrication of Fe-500 (HYSD) steel required in the schedule including cost of steel at site cost of providing and cost of fabrication,labour charges for cleaning the rods straightening, cutting, bending, tying grills, including overlapping to the required length whenever necessary and placing the reinforcement in position as specified in the drawings,including cost of binding wire(Galvanised-18 G), provision of spacer bars, cover blocks and all other incidental charges etc,complete,as per section 1600 of MORT@H specifications ( V revision)

Vibrated Cement Concrete of grade 1:2:4 (Nominal mix) using 20mm ISS size HBG metal including cost and conveyance of all materials to site and cost cement at site including cost of formwork, soft water, labour charges for mixing, transporting, laying and curing concrete, working at depths Hire charges for Tools and plants and incidental charges etc., complete as per relevent standard specification for drain Side Walls

Manhole Cover SFRC-600mm x 600mm PWD SOR 2025-2026 Pg.No-123 (M-0714)