ADDITION/ALTERNATION FOR RE-ROUTING OF WATER SUPPLY PUMPING LINE BETWEEN NAY HOUSE AND POST NO 11 AT NAY(K) NAVAL BASE KOCHI

Amount

Excavation in trenches not exceeding 1.5 Metre wide and not exceeding 1.5 Metre in depthetc, not exceeding 10 Sqm on plan and not exceeding1.5 m in depth and getting out in soft/loose soil for laying pipes etc, including forming bottom surface to required level complete all as specified and directed.

Returning, filling in, including spreading, leveling, watering and well ramming in layers not exceeding 25 cm thick in soft/loose soil complete all as specified and directed.

Removing excavated material (soil) to a distance not exceeding 50 Metre and depositing where directed at a level not exceeding 1.5 Metre above the starting point complete all as specified and directed.

Taking up DI/cast iron water mains 100 mm bore (including all fittings) with spigot and socket ends and, rubber titan joints lead joints including burning out joint complete all as directed.

All as per item No 4 here in above, but 80mm bore pipes.

Supplying and laying in trenches centrifugally cast (spun) ductile iron pipes of 100 mm dia suitable for pressurized water delivery with spigot & socket end, class 'K-9' conforming to IS:8329/2000 (latest version) - blast furnace slag cement with Portland cement properties suitable for (push on) rubber gasket jointing with inside cement mortar lining and black bitumen external coating, duly ISI marked in any length including taking down old unserviceable CI pipe and testing on completion, complete all as specified and directed.

Material and labour for ISI marked ductile iron socket fittings supplied as per IS: 9523/2000 of class K-12, PN-10 for pressurized water delivery with inside Cement Mortar lining and outside zinc followed by black bitumen coating for size 100mm dia such as bends, Tapers tale pieces, Tee pieces (single branch) Y junction double branch, cross collars, caps and plug set including rubber ring push on joints complete as specified and directed.

Cutting the existing DI pipes in position for insertion of new collars/ Tees /branches/new pipes 100 mm dia DI Pipe complete all as directed at site.

Material and Labour for joint with rubber or fibre bored gasket of 100mm bore DI spigot & socket end pipes/fittings complete all as directed.

Supply and fix in replacement of 100 mm bore cast iron sluice valve with flanged ends of type PN-1.6 conforming to IS-14846:2000 with cast iron wheel and brass spindle including taking down old unserviceable one complete all as specified and directed.

Material and Labour for Construction of brick masonry valve pit of size 0.9x0.9x1 metre (internal dimensions) including demolition of old Valve pit ,returning & filling by constructing PCC block 1:2:4 type B-2 in foundation in CM 1:4, 15mm thick plastering in CM 1:4 internally and flush pointing externally in same mortar as the work process angle iron frame work 40X40X6mm, with 6mm thick MS sheet (chequered) cover with 12 mm dia handle and locking arrangement with and including lock and two Keys, and two coats of synthetic enamel paint over a coat of red oxide primer on all steel surfaces complete all as directed by Engineer-in-Charge

Demolition of brickwork or stone/boulder masonry built in cement mortar including all arches, pillars, valve pits etc but excluding ashlars facings, dressed stonework and precast concrete article complete all as specified and directed.

Material and Labour for Pre-cast cement concrete block masonry with solid blocks Type C1 1:3:6 type C1 (using 20mm graded stone aggregate), exceeding 10 cm in width and setting in cement mortar 1:6, complete all as specified and as directed

Material & Labour for Rendering 15 mm thick on fair faces of brick work or concrete surface, including even & smooth finish (without using extra lime or cement) using cement plaster of 1:4 complete all as specified and directed.

Material and Labour for preparation of newly plastered surfaces of wall and applying two coats of cement base paint over a coat of primer complete all as specified and directed.

Supply and laying 75mm inner dia of CPVC pipes with CPVC Schedule 40 pipes & plain Schedule 80 fittings and jointed with CPVC primer & solvent cement including taking down old unserviceable GI Tubing ,laid in trenches complete all as specified and directed.

Supply and laying 50mm outer dia CPVC pipes SDR-13.5 & plain CPVC SDR 11 fittings, including jointed with yellow solvents cement including taking down old unserviceable GI Tubing, laid in trenches complete all as specified and directed.

All as per item No 17 here in above, but 40mm dia of pipes.

All as per item No 17 here in above, but 25mm dia of pipes.

Supply and laying 50mm outer dia CPVC pipes SDR-13.5 & plain CPVC SDR 11 fittings, including jointed with yellow solvents cement including taking down old unserviceable GI Tubing, fix on wall/floor complete all as specified and directed.

All as per item No 20 here in above, but 40mm dia of pipes.

All as per item No 20 here in above, but 25mm dia of pipes.

Supply and fixing 80 mm bore CPVC Ball valves Suitable for CPVC pipe with necessary fittings ,including taking down old one complete all as specified and directed.

All as per item No 23 here in above, but 40mm bore.

All as per item No 23 here in above, but 25mm bore.

All as per item No 23 here in above, but 20mm bore.

Material and labour for plain cement concrete 1:3:6 type C2 (using 40mm graded stone aggregate) as in foundations filling and mass concrete complete all as specified and as directed.

Amount of Credit Schedule shall be deducted to arrive the Contract Sum.