Roof treatment by providing and laying APP in the roof of left out residential quarters in Subhash Block, J.P. colony, S.B.S. colony, Officers colony, 15 Block and Pump House colony at AHQ of Korba Area.

Amount

Providing and laying APP (Atactic Polypropylene Polymer) modified prefabricated five layer 3 mm thick water proofing membrane, black finished reinforced with non-woven polyester matt consisting of a coat of bitumen primer for bitumen membrane @ 0.40 litre/sqm by the same membrane manufacture of density at 25°C, 0.87-0.89 kg/ litre and viscocity 70-160 cps. Over the primer coat the layer of membrane shall be laid using Butane Torch and sealing all joints etc, and preparing the surface complete. The vital physical and chemical parameters of the membrane shall be as under : Joint strength in longitudinal and transverse direction at 23°C as 650/ 450N/ 5cm. Tear strength in longitudinal and transverse direction as 300/250N. Softening point of membrane not less than 150°C. Cold flexibility shall be upto -2°C when tested in accordance with ASTM, D - 5147. The laying of membrane shall be got done through the authorised applicator of the manufacturer of membrane :3 mm thick

Grading roof for water proofing treatment withCement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20mm nominal size)

12 mm cement plaster of mix :1:4 (1 cement: 4 fine sand)

Providing and fixing PTMT extension nipple for water tank pipe, fittings of approved quality and colour.20 mm nominal bore, weighing not less than 40 gms

Demolishing R.C.C. work manually/ by mechanical means including stacking of steel bars and disposal of unserviceable material within 50 metres lead as per direction of Engineer - in- charge.

Providing and placing on terrace (at all floor levels) polyethylene water storage tank, IS : 12701 marked, with cover and suitable locking arrangement and making necessary holes for inlet, outlet and overflow pipes but without fittings and the base support for tank.

Providing and fixing Chlorinated Polyvinyl Chloride (CPVC) pipes, having thermal stability for hot & cold water supply, including all CPVC plain & brass threaded fittings, including fixing the pipe with clamps at 1.00 m spacing. This includes jointing of pipes & fittings with one step CPVC solvent cement and testing of joints complete as per direction of Engineer in Charge. Internal work - Exposed on wall20 mm nominal outer dia Pipes

Providing and fixing Chlorinated Polyvinyl Chloride (CPVC) pipes, having thermal stability for hot & cold water supply, including all CPVC plain & brass threaded fittings, including fixing the pipe with clamps at 1.00 m spacing. This includes jointing of pipes & fittings with one step CPVC solvent cement and testing of joints complete as per direction of Engineer in Charge. Internal work - Exposed on wall25 mm nominal outer dia Pipes

Dismantling and removal of old tarfelting from horizontal & vertical surface manually and disposal of the same within 50m lead as per instruction of the EIC

Remove the existing PVC water storage tank and refix the same after successfully completion of laying of APP work including dismnaltling and fixing of available G.I./ PVC pipes into PVC tanks as per inspection of the EIC.

Total impact of GST for the purpose of CTC

NARENDRA KUMAR SINGH

Kailash Enterprises