Laying of Hdpe pipe line drain and Rainwater Harvesting structure at Velachery main Road Cee Bros apartment OSR Land in dn-177, unit-39,Zone-13.

Dismantling -Brick/stone masonry in lime mortar walls under 3m high

Earth work excavation for foundation by Mechanical means for Isolated & Combined Footing etc in all soils and sub-soils and to full depth as may be directed except in rock requiring blasting inclusive of shoring shuttering, bailing out water wherever necessary and depositing the surplus earth within the compound in places shown by the departmental officers with an initial lead of 100 mts and clearing and levelling including dressing of sides and raming of bottoms etc., complete complying with standard specification and as directed by the departmental officers.- Upto 2.40m Footing Depth. (including Refilling charges)

Supplying and filling in foundation, basement, etc with filling crushed stone dust (Quarry dust) in layers of not more than 15 cm thick well watered, rammed and consolidated etc. complete complying with standard specification and as directed by the departmental officers.

TWAD2.0 HDPE PIPE-PE100 AS PER IS 4984/2016-250mm DIA PN8

Construction of cast-in-situ Silt Catch Pit With Rain Water Harvesting Structure of inner size 600 X 600 x 600 mm including necessary earth work excavation including providing foundation in PCC 1:4:8 under walls 150mm. thick and cutting the existing storm water drain of size 300 x 150mm for fixing 2 Nos of 160mm dia PVC pipe on the storm water drain mouth, with RCC cast in situ wall of size 120mm in RCC 1:1.5:3 with steel of 10.60 kg including fixing FRP Grating Cover with frame of size 700 x 700mm (clear opening 600 x 600mm) - 10 MT

Cement Concrete 1:5:10 (One cement, Five crushed stone sand and Ten hard broken stone jelly) using 40 mm gauge hard broken jelly for flooring including laying, consolidating. finishing, rendering the top surface rough to receive the floor, curing, etc. complete complying with standard specification and as directed by the departmental officers.

Providing of Rain Water Harvesting struture using precast well ring size 1200 (inner dia) x 4500mm (Height) (300mm x 15Nos) x 80mm (thick) using 1:4:8 concrete necessary earth work excavation providing PCC 1:4:8 and bottom well rings 150x200mm thick using 1:1.5:3 concrete, RCC cover slab of 1680mm dia 180mm thick. Providing bore hole of size 300mm dia using hand bore set upto 8.50m depth including shifting of the hand bore from one place to another plac with in 5km, erecting 200mm dia slotted PVC pipe (6kg/cm2) with cowl, filling with 20mm HBG metal out side peripheral of the pipe including cost, conveyance, cleaning the site and finishing etc.. complete.

Providing and laying in position, standardised concrete Mix M-20 Grade using In-situ Concrete batching plant/ Ready Mix Concrete (RMC) adopting weigh batch method in accordance with IS 456 using 20mm and down graded hard broken granite stone jelly for all RCC items of works with minimum cement content of 325 kg/m3 and maximum water cement ratio of 0.55, including admixture (plasticiser/super plasticiser)

Brick work in following Cement Mortar using best quality Burnt Clay Brick of size 9" x4 3/8 x 2 3/4" with class designation of 10 conforming to IS 1077-1992 for foundation and basement including Cost of Mortar Plasticizer curing, etc..complete complying with standard specification and as directed by the departmental officers, done as directed by the Executive Engineer in charge. In Cement Morter 1:5

Plastering the surface of walls with cement mortar 1:4 (one cement and four plastering sand), 12mm 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.( wall)