Bengaluru Water Supply And Sewerage Board Tender

RCCNP3 2 - Providing S&S RCC SPUN / VIBRATED CAST PIPES (REINFORCED) pipes NP-3 Class conforming to IS:458-1988 with latest amentments using ordinary portland cement, for sanitary works and conveying to work site, rolling and lowering into trenches, laying true to line and level including loading and unloading at both destinations and jointing of pipes and specials, perfect linking of joints with jack to correct position including cost of jointing materials, i.e, rubber rings conforming to IS: 5382 for S&S RCC pipes, with all leads and lifts as directed and giving necessary hydraulic test as per ISS to the required pressure and commissioning etc. complete. (Contractor will make his own arrangements for procuring water for testing). Before the execution of the work, the contractor shall carry out the survey. RCC NP3 class pipe of 600 mm dia

RCCNP3 3a - 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) 600X850 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 slabwith 1:1.5:3 mix (1 cement : 1.5 fine sand : 3 graded stone aggregate 20mm nominal size), foundation concrete 1:5:10 (1 cement : 5 fine sand : 10 graded stone aggregate 40 mm nominal size), insideplastering 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 (non modular) bricks of class designation 3.5 4 Chambers (Upto 0.45m depth)

RCCNP3 3b - Extra for depth beyond 45 cm (0.45m) of brick masonry chamber : For 600x850 mm size With common burnt clay (non modular) bricks of class designation 3.5 4 Inspection Chambers of 3.5 Mtr Each (1Chamber with 0.45mtr depth in Sl. No. 3a) =3.5mtr - 0.45mtr= 3.05mtr additional depth of each Inspection Chamber) =3.05mtr x 4 Chambers = 12.2Mtr

RCCNP3 4 - Refilling available earth around trenches/pipelines, cables in layers not exceeding 20 cms in depth, compacting each deposited layer by ramming after watering with a lead upto 50 m, and lift upto 1.5 m. Including cost of all labour complete as per specifications

RCCNP3 5 - Disposal off the excess excavated earth of all types by vehicle including loading, unloading with all lead and lifts, labour, HOM of machineries etc. for: Upto 5 Km