Repairing work

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. a) 15 mm nominal outer dia . pipes.

b) 40 mm nominal outer dia . pipes.

Providing and fixing G.I. pipes of medium class as per IS: 1239 with latest amendment complete with G.I fittings including trenching and refilling etc. complete as per CPWD specification and direction of the Engineer-in-charge. External work. 80 mm dia. nominal bore.

Making connection of G.I. distribution branch with G.I. main of following sizes by providing and fixing tee, including cutting and threading the pipe etc. complete : 50 to 80 mm nominal bore

Providing and fixing gun metal gate valve with C.I. wheel of approved quality (screwed end): (a) 40 mm nominal bore

(b) 80 mm nominal bore

Providing and fixing G.I. Union in existing G.I. pipe line, cutting and threading the pipe and making long screws including excavation, refilling the earth or cutting of wall and making good the same complete wherever required :

Constructing masonry Chamber 90x90x100 cm, inside with 75 class designation brick work in cement mortar 1:5 (1 cement : 5 fine sand) for sluice valve, with C.I. surface box 100 mm. top diameter, 160 mm bottom diameter and 190 mm deep (inside) with chained lid and RCC top slab 1:2:4 mix (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size ) necessary excavation foundation concrete 1:5:10 (1 cement : 5 fine sand:10 graded stone aggregate 40 mm nominal size ) and inside plastering with cement mortar 1:3 (1 cement : 3 coarse sand) 12 mm thick finished with a floating coat of neat cement complete as per standard design : With Second Class bricks

Providing and fixing on wall face unplasticised Rigid PVC rain water pipes (working pressure 4 kg / cm2) conforming to IS : 13592 Type A including jointing with seal ring conforming to IS : 5382 leaving 10 mm gap for thermal expansion: Single socketed pipe - 110 mm OD

Providing and fixing on wall face unplasticised - PVC moulded fittings/ accessories for unplasticised Rigid PVC rain water pipes conforming to IS : 13592 Type A including jointing with seal ring conforming to IS : 5382 leaving 10 mm gap for thermal expansion: Bend 87.5°: 110mm

Providing and fixing on wall face unplasticised - PVC moulded fittings/ accessories for unplasticised Rigid PVC rain water pipes conforming to IS : 13592 Type A including jointing with seal ring conforming to IS : 5382 leaving 10 mm gap for thermal expansion: Single equal tee with door 110x110x110mm

Providing and fixing on wall face unplasticised - PVC moulded fittings/ accessories for unplasticised Rigid PVC rain water pipes conforming to IS : 13592 Type A including jointing with seal ring conforming to IS : 5382 leaving 10 mm gap for thermal expansion: Double equal junction of required degree with door 110x110x110x110 mm

Providing and fixing unplasticised -PVC pipe clips of approved design to unplasticised - PVC pipes by means of 50x50x50mm hard wood plugs, screwed with M.S. screws of required length including cutting brick work and fixing with cement mortar 1 : 4 (1cement : 4 fine sand) making good the wall etc. complete. 110mm

Providing and laying in position cement concrete of specified grade excluding the cost of centring and shuttering - All work upto plinth level: 1:4:8 ( 1 Cement: 4 fine sand : 8 graded stone aggregate 40 mm nominal size)

5 Providing and laying cement concrete 1:2:4 (1 cement: 2 fine sand : 4 graded stone aggregate ) finished with a floating coat of neat cement including cement slurry,excluding the cost of nosing of steps etc. complete. 40 mm thick with 20 mm nominal size stone aggregate

KALYAN DEBROY

SABYA SACHI SAHA

Partha Pratim Saha