PROVN OF COVERED PATHWAY AT APS AT KATAPAHAR UNDER AGE (I) DARJEELING

Surface dressing not exc. 15 cm deep in soft/loose soil, complete all as per specified and as directed by Engineer-in-charge.

Excavation in post holes (or similar holes) each n.exc 0.5cum in soft/loose soil and getting out, returning filling in and ramming earth or broken rubble mixed with earth around in layers not exceeding 25cm, watering and removing of surplus soil to a distance n.exc 50 meters and making good surface, complete all as per specified and as directed by Engineer-in-charge.

M&L for hardcore of guage not exc. 63mm deposited, spread and levelled in layers not exc. 15 cm thick, watered and rammed to a true surface of broken stone or boulders, complete all as per specified and as directed by Engineer-in-charge.

M&L for 100mm thick PCC 1:3:6, type C-2, (using 40mm graded stone aggregate) as in flooring & finishing the surfaces rough to receive screed bed, complete all as specified and as directed by Engineer-in-charge.

M&L for PCC (1:4:8) type D2 ( using 40mm graded crushed stone aggregate) as in foundation, filling and mass concrete complete all as per specified and as directed by Engineer-in-charge.

M&L for PCC (1:2:4) type B-1 (using 20 mm grade crushed stone aggregate) as in coping roof kerbs or mud stops, rounded or chamfered on edges with necessary form work as required complete all as specified and as directed by Engineer-in-charge.

M&L for Chequered cement concrete tiles 30cm X 30cm X 20mm thick set and jointed and pointed with grey cement and pigments in neat cement slurry in floors including 15mm thick secreed bed in CM 1:6 set and jointed and pointed in neat cement slurry, complete all as specified and as directed by Engineer-in-charge.

M&L for MS rolled section of grade Fe-290 (Grade-E-165) (beam, tee, angle channel ot flat section) as in roof trusses (framed), trussed purlins, crane gantries rails, and fastening and heavy bracket framing including destance pieces, wind tie, cleats etc. complete all as specified and as directed by Engineer-in-charge.

M&L for preparation of new or previously untreated steel or iron surface of any description and applying two coats of synthetic enamel paint over a coat of red oxide, primer over 10cm width or girth complete all as specified and as directed by Engineer-in-charge.

S&F Pre-painted galvalume aluminium zinc coating GI based corrugated steel sheet 0.50 mm thick of any colour having tensile strength of 550 mpa as in roof covering/cladding to wall, fixed with self tapping screws or J hooks, complete all as specified and as directed by Engineer-in-charge.