ARAKKONAM MUNICIPALITY-CONSTRUCTION 5.0 LAKH SUMP AT JUBILEE ROAD OHT IN ARAKKONAM MUNICIPALITY

Earth work excavation and depositing on bank within an initial lead of 10 m and the following lifts and classfication of soils. Hard stiff clay, stiff black cotton, hard red earth, shales, murram, gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil ( SS 20B) - for first depth of 2m

Second depth from 2.00 m to 3.00 m below G.L.

Filling with clean river sand complying with standard specification including watering ramming and consolidation etc., complete and as directed by TWAD BOARD Officers.

Plain Cement Concrete 1: 4 : 8 (One cement, Four Sand and eight hard broken granite stone of size 40 mm ) for levelling course for fountation including curing, finishing etc., complete complying with standard specification and as directed by the TWAD Board officers

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 - Upto 1.50 m depth below G.L.

Above 1.50 m upto 4.50 m depth below G.L.

Upto 4.50 m height above G.L.

Centering for soffits of reinforcement concrete slabs or plain surface including strutting upto 3m height using m.s. sheet of size 90cm and BG 10 gauge stiggened with welded MS angles of sizemm x 3mm laid over oak (Country Wood) Joints of 10cm x 6.5cm space - Upto 3.30 m below G.L. - Curved surface

Upto 3.30 m below GL - Circular column

Upto 3.30 m above GL - Circular column