Construction of Horizantal Subsurface Flow Constructed Wet Lands (Root Zone Technology) at Poonthandalam Panchayat

Earth work Excavation for Foundation in all soils and Sub Soil to full depth as may be directed except in hard rock requiring blasting but inclusive of shoring strutting and requiring the sides of foundation.

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

Precast concrete block masonry (including Quoin Blocks, Jamb blocks, closers, etc) with Solid cement concrete blocks of approved size size made of cement concrete 1:3:6 mix ( 1 cement, 3 coarse M.Sand, 6 graded stone aggregate 20mm and down gauge) in foundation and plinth in cement lime mortar 1:2:9 (1 cement, 2 lime putty 9 coarse M.Sand)/ 1:1:6 (1 cement, 1 lime putty, 6 coarse M.Sand )/ Cement 1:6 (1 cement: 6 coarse M.Sand) Details of cost for 1.89cum of precast concrete blocks masonry.) 100 sqft x 2/3 = 66 2/3 cft= 1.89cum) (No. 7.75)

Reinforced Cement concrete 1:1.5:3 using 20mm ISS HBG metal for all RCC item of works excluding cost of Rein forcement and fabricating charges, centering and shuttering complete Upto GL

Plastering with Cement Mortar 1:5 (One cement and Five M.Sand), 12mm thick in all floors including curing etc. complete complying with standard specification and as directed by the departmental officers.

Towards Cost and Supply of 110mm PVC (2.54x7.62 Slotts) rectangular Slotted Pipe Including Cost & Conveyance of all Materials & all labour charges etc complete

Supplying & Erecting centering for sides & soffits of CC Works including necessary supports & strutting upto 3.29m height for plane surfaces in all floors etc., complete Upto GL

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.

Supply & Laying of 20mm to 40mm IS HBG Metal in Filter Bed including cost and conveyance and all labour charges etc., complete.

Supply & Laying of 5mm to 10mm IS HBG Metal in Filter Bed including cost and conveyance and all labour charges etc., complete.

Supply & Laying of 10mm to 40mm IS HBG Metal in Filter Bed including cost and conveyance and all labour charges etc., complete.