Replacement of old GI line with new one at PT Shastri market Sector-22 and construction works of damaged manholes at various PTs in Sector-22 Chandigarh

Dismantling G.I. pipes (external work) including excavation and refilling trenches after taking out the pipes, manually/ by mechanical means including stacking of pipes within 50 metres lead as per direction of Engineer-in-charge : 15 mm to 40 mm nominal bore (DSR No.-15.44.1)

Providing and fixing G.I. pipes complete including trenching and refilling etc. External work 25 mm dia nominal bore (DSR item no. 18.12.3)

Providing and fixing of best Indian make ( to the approval of the EIC) gun metal ISI peat valve complete in all respects. 25mm peat valve

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: 25 mm nominal bore (DSR No.18.47.3)

Providing and fixing gun metal non- return valve of approved quality (screwed end) : 25 mm nominal bore Horizontal (DSR No. 18.19.1.1)

Constructing brick masonry chamber for underground C.I. inspection chamber and bends with bricks in cement mortar 1:4 (1 cement : 4 coarse sand) C.I. cover with frame (light duty) 455x610 mm internal dimensions, total weight of cover with frame to be not less than 38 kg (weight of cover 23 kg and weight of frame 15 kg), R.C.C. top slab with 1:1.5:3 mix (1 cement : 1.5 fine sand : 3 graded stone aggregate 20 mm nominal size), foundation concrete 1:5:10 (1 cement : 5 fine sand : 10 graded stone aggregate 40 mm nominal size), inside plastering 12 mm thick with cement mortar 1:3 (1 cement : 3 coarse sand), finished smooth with a floating coat of neat cement on walls and bed concrete etc. complete as per standard design: Inside dimensions 600x 850 mm and 45 cm deep for pipe line with three or more inlets : With common burnt clay F.P.S. (non modular) bricks of class designation 7.5 (DSR No. 19.30.3.1)

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