Construction of New Additional single Class Room Buillding in ADWPS at Melpulidiyur Panchayat

EARTHWORK EXCAVATION for foundation in all soils and sub soils and to full depth as may be directed except in rock requiring blasting but inclusive of shoring, strutting and baling out water wherever necessary and refilling the sides of foundation with excavated earth in layers of not more than 15cm thick, well rammed and consolidated and depositing the surplus earth within the compound in places shown by the departmental officers with initial lead and lift etc. complete.

Collection and supply of gritty gravel from appd quarry including cost and conveyance of all materials to site including all labour charges for filling etc.complete,

Cement concrete 1 : 4 : 8 mix using 40mm HBG metal for foundation including watering wherever necessary and laid in layers of not more than 15cm thick., compacting etc., complete complying with standard specifications and as directed

Refilling the approved good quality earth in plinths,area development etc.wherever specified in layers of not exceeding 200 mm thick.,with available earth at site.

Supplying and filling of good earth filling locally available earth transported from the out side including consolidation,levelling specified in layers of not exceeding 200 mm thick., etc. complete.

Supplying and erecting centering and shuttering for soffits including necessary supports and strutting upto 3 M height for plane surfaces as detailed below in all floors with all cross bracings using Mild Steel sheets of size 90 x 60 cm and 10 BG stiffened with welded Mild Steel angle of size 25mm x 25mm x 3 mm for boarding laid over silver oak joists of size 10cm x 6.50 cm spaced at abote 90 cm centre to centre and supported by casurina props of 10cm to 13 cm dia spaced at not more than 75 cm centre to centre etc. complete complying with the standard specificaiton.(Payment for centering shall be given after the concrete is laid).

Plain surfaces such as roof slab, floor slab, beams , lintels , loft, sill slab, staircase waist,portico slab and other similar works.

Square and rectangular columns and small quantities such as sunshades,parapet cum drops,window boxing,fin projections and other similar works.

Providing and laying in position, 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 400 kg/mᶾ and maximum water cement ratio of 0.45, 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 (5.0 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).