Provision of concertina coil on perimeter wall (1.8 m) at 2W Det Goa under GE Gomantak Vasco

Excavating in post holes(or similar holes) each n.exc 0.5 cum in soft/disintegrated rock, getting out, returning, filling in, watering and ramming earth or broken rubble mixed with earth around, in layers not exceeding 25cm and removing surplus soil to a distance n.exc 50m and making good surfaces complete all as specified and directed.

M & L for plain cement concrete 1:3:6 type C-2 (using 40mm graded stone aggregate) as in foundation, filling & mass concrete complete all as specified and directed.

M&L for mild steel work as in posts and struts in fencing or gates, flat iron fillets, angle iron, swan neck including cutting tops to shape, drilling holes, notching for wire etc. conforming to Fe-290 Gde E-165 complete all as specified and directed.

S&F 600 mm dia galvanised iron (GI) concertina coil fabricated with 2.5 mm dia pre-galvanised (260 GSM as per IS 277) coil core and 0.5 mm thick blades galvanised as per IS 4826. The coil shall have a minimum tensile strength of 1300 N/mm2 Blade profile shall confirm to ASTM F 1379 BTO-22, with a blade length of 22 mm and 35 mm center to center distance between blades. Each coil shall have minimum of 56 loops, secured with a minimum of three GI clips per loop complete all as specified and directed.

S&F galvanised, 2 strand, steel barbed wire 2.24 mm dia barbed with 2 mm dia barbs at 75 mm spacings and straining and fixing to any type of standard rails straining bolts, including securing or tying at crossing with and provision of galvanised mild steel wire, staples or steel pins etc. as specified and directed (each line wire to be measured).

M&L for preparation of new or previously untreated steel surfaces exceeding 10 cm width or girth and applying two coats of synthetic enamel paint over a coat of red oxide primer all as specified and directed.

S&F mild steel screw bolts (machine made) dia of shank 11 to 15 mm with hexagonal or square head at one end and screwed the other end or screwed both end, each screw end to be fitted with 3 mm thick MS washers and one hexagonal nuts, length of bolt exc. 5 cm and not exc. 10 cm long complete all as specified and directed.

Demolition of Brick Work/ stone work / concrete block wall built in Cement Mortar including all quoins, arches, pillars, etc. of any descriptions, complete all as specified and as directed.

M&L for precast cement concrete block masonry, type C-1 (1:3:6) (20 mm graded aggregate) with solid blocks, exc 10 cm in width and setting in CM 1:4 complete all as specified and as directed.

Taking down cement or cement lime plaster on walls/ concrete/roof slab any description including racking out joints hacking for key, scrubbing down with water etc. complete all as specified and directed.