Public Works Department Tender

For plane surfaces such as vertical slab, side slabs of boxing, vertical drops, facia, vertical wall, etc.

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/mᶾ 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 impairing 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 sand, but excluding cost of reinforcement 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).

For Foundation and Basement

Supplying, fabricating and placing in position Mild Steel / Ribbed Tor Steel grills for all RCC works as per design given including cost of steel and G.I. binding wire in all floors etc. complete complying with standard specification. (Contractor has to make his own arrangements for the supply of steel and binding wire)

Painting new iron works such as steel doors, windows, ventilators, window bars, balustrades etc., with two coats of best approved first quality and colour of synthetic enamel paint over the existing red oxide priming coat in all floors excluding cost of priming coat etc., complete complying with standard specification. (The make, quality and colour of paint should be got approved by the Executive Engineer before use on works.)

Supplying fixing and errecting of steel roof trusses and roof truss purlins fixing for G.I. sheet roofing using MS. L. angle of size 50x50x6 mm raffter, Tie angles and MS angle of size 50x50x6mm for sturts and MS plat of size 12 mm thick for fixing G.I. sheet. The purlins using MS L. angle of size 50x50x6 mm shall be properly anchored to the supporting super structure and fixed in concrete at wall and spacing of purlins are to be arranged to use the standard size or sheet and spacing should not execeed 1680 mm and free over hang at eves should not be more than 400 mm, the cleats shall be wellded to the trusses firmly and fixed on the down stream side of purlins. The ridge purlins fixed at 77 to 115 mm away the apex of the roofThe trusses shall have welded joints only at all guessets plate junctions except gussets at bottom chords to have bolts and nuts to permit transportation of trusses as directed. The foundation anchor bolts of trusses will be fixed in concrete at wall in bed blocks and well cured, labour for erection of trusses of approved quality transportation, priming coat for all members, cutting, bending, and welding etc., The trusses should be connected at bottom 1 / 3 part by steel tie angles and with top and bottom wind bracings as per design given. The chord of the trusses of bottom channel should suitablely cambered. The truss and purlins should be given priming coat of Rex Oxide primer of approved quality including labour for erection, transportation, wellding etc., complete complying with standard specification.

Supplying and fixing by drilling holes and not by puching for Roofing with pre painted Galvalum sheet of 0.47mm thick of best approved quality with required size with curved shape and white ridge sheet with necessary bolts and nuts bitumen washers, including cutting the sheet to the required size found necessary during execution etc., Complete complying with standard specifications. [The sheet should be got approved by the Engineer incharge before use on works.

Paving with hydraulically pressed cement concrete paver block with pattern design of 50% colour and 50% Plain of 83 mm of approved quality and colour, over the sand filling to full depth of slab perfectly and neat finishing the joints, compressing with vibrator. The rate shall be inclusive of cost of paver block, taxes, incidental charges, transportion charges and labour charges for fixing, neat finishing the joints as directed by the departmental officers etc., complete complying with standard specification. The paver block should got approved by the departmental officers before use on work.

GST 18%