Bhakra Beas Management Board Tender

Providing and placing in horizontal layers filtering media screened, washed and cleaned as described below:- Fourth Layer :----- (d) Bajri (Coarse) screened, cleaned and washed and graded from 20mm to 25mm (from Pathankot or approved equivalent quarry) (Pb. CSR Ref. No. 28.51(d)) (T/R)

Supplying, assembling, lowering and fixing in vertical position in bore well unplasticized PVC medium well screen (RMS) pipes with ribs, conforming to IS:12818, including hire & labour charges, fittings & accessories etc. all complete, for all depths, as per direction of Engineer-in-charge. (b) 150 mm nominal size dia. (Pb. CSR Ref. No. 28.93(b)) (T/R)

V" wire screen for injection well of diameter 163 MM `V ' Wire screen material SS 304 Screen, width of the profile V wire 2.57 MM x Profile wire Height 2.24 MM, support rod Dia 3.15 MMs, consisting of continuous trapezoidal wire spirally wound around fabricated cage. Slot Size 0.75 MM, collapse strength of pipe up to 3.70 Kg/Cm2,tensilestrengthof pipe 10.70tones, & open area is 57% designedvelocityat theentry ofscreen,less than 0.03 Meter Per second, end connectionsOne Side Flat Screen with 0.75MM slots and other end with 150MM Sleeve - overall length with sleeve-750 MM. The work includes fixing the V-wire screen to the perforated vertical HDPE pipes of suitable dia. (N.S. item) (T/R)

203 mm dia horizontal V- wire screen for silt trap made up of low carbonized steel cage treated with grit blasting, spray galvanizing with zinc metal coating. Zinc metal coating spraying should involve galvanizing (Thermal Spray Coating of Zinc - TSZ) i.e., depositing of molten zinc (Purity 99.5%) on to a prepared surface. The metal spraying is to be melted in an electric arc automized by compressed air and then projected onto the substrate for grit blasting as per IS & BS standards. IS 5905 IS 6586 BS: 5493 with - powder epoxy hybrid of thickness 40 to 60 microns and coating of the screen with anti oxidant powder follows: Pattern on-screen wound on pipe consisting of continuous trapezoidal wire spirally wound around fabricated cage, Slot size 3mm, a tensile strength of screen 6 tons, collapse strength of screen up to 9.6 kg/cm2 slot opening size 70%. The effective length of the screen is 500 mm with end manufactured by block making machine equipped with steel mould clamped to a strong vibratory table with hydraulic pressure for compaction of concrete as per IRC SP 63 -2014 and of approved size and design / shape laid in Ordinary Grey Colour and pattern over and including 40 mm thick compacted bed of coarse sand, filling the joints with fine sand etc, all complete as per directions of Engineer-inCharge. (N.S. item) (T/R)

Providing and lowering of RCC M-25 Concrete Rings of 1350 mm dia, 55-70 mm thick and 300 mm high factory made complete in all respect.(N.S. item) (T/R)

Providing and lowering of RCC M-25 Concrete Rings of 1350 mm dia having a thickness of 65-75 mm for a height of 70 mm and 120-140 mm for a height of 230 mm, thus a total height of 300 mm factory made complete in all respect.(N.S. item) (T/R)

Provided and fixing of factory made RCC M25 perforated slab of 1.2 mtrs dia and 65 mm thick, having perforations in the slab so as the filtered rainwater from the filtration media can be percolated towards the rainwater harvesting well(N.S. item) (T/R)

Providing and fixing of factory made RCC M25 slabs for Rainwater harvesting well and the silt trap chamber of 1.2 mtrs dia and 65 mm thick, the slab for the rainwater harvesting well shall have a sleeve for the vent pipe and both slabs (N.S. item) (T/R)

Providing and laying Filtration Media consisting of 40 mm crushed stone, Charcoal, Activated Carbon and coarse sand. (N.S. item) (T/R)

Providing and laying, jointing, fixing and testing ISI Marked uPVC Pipe Lines as per ISI 4985-2000, including specials such as tees, bends, sockets, elbow etc., cutting, testing (including cost of specials) in the ground complete in all respects. (A) uPVC Pipe 10 Kgf/cm2 (e) 50mm i/d (Pb. CSR Ref. No. 28.12(A) (e)) (T/R)

Providing and fixing of 6 inch dia uPVC flange along with tail piece in silt trap unit on 160 mm o/d uPVC pipe in order to connect the flanged 'V' wire filter complete in all respect (N.S. item) (T/R)

12.5 mm thick cement plaster 1:3 (Pb. CSR Ref. No. 15.8) (T/R)

Taking out existing CC interlocking paver blocks from footpath/ central verge/pavement, including removal of rubbish etc., disposal of unserviceable material to the dumping ground, for which payment shall be made separately and stacking of serviceable material within 50 metre lead as per direction of Engineer-in-Charge. (Pb. CSR Ref. No. 8.43) (T/R)

Providing, Laying , fixing & jointing of P.V.C. Pipes as per ISI-4985 (ISI marked with the prior approval of Engineer-in-Charge) along the Trenches and laying the same in Trenches to correct alignment and gradients, cutting, jointing and testing complete as per specifications. (xvi) 160mm o/d pipe of 6 Kgf. / sqcm (Pb. CSR Ref. No. 28.13(xvi)) (T/R)

Providing and laying 60 mm thick factory made cement concrete interlocking Paving blocks of M- 35 grade manufactured by block making machine equipped with steel mould clamped to a strong vibratory table with hydraulic pressure for compaction of concrete as per IRC SP 63 -2014 and of approved size and design / shape laid in Ordinary Grey Colour and pattern over and including 40 mm thick compacted bed of coarse sand, filling the joints with fine sand etc, all complete as per directions of Engineer-inCharge.(Pb. CSR Ref. No. 14.138) (L/R)

Dismantling concrete (b) Cement concrete plain 1:4:8 or 1:5:10(Pb. CSR Ref. No. 8.6(b)) (T/R)

Cement concrete 1:5:10 (b) With stone aggregate 40mm gauge (ii) mixing by mechanical means using concrete mixer volumetric type(Pb. CSR Ref. No. 10.9 (b) (ii)) (T/R)

Earth work in excavation in foundations trenches etc. in all kinds of soil where Pick-Jumper work is not involved and not exceeding 2.0 metres depth including dressing of bottom and sides of trenches, stacking the excavated soil clear from the edge of excavation and subsequent filling around masonry in 15 cm, layers with compaction including disposal of all surplus soil as directed within lead of 30 metres (Pb. CSR Ref. No. 6.6) (T/R)

Constructing brick masonry road gully chambers as per standard drawings (as per sizes given below) including dressing of beds and sides of chambers to exact profiles, 15cm thick C.C 1:6:12 in foundation, first class brick work laid in cement sand mortar 1:5, 40mm thick cement concrete 1:2:4 topping inside the chamber with a floating coat of 1.5mm thick neat cement laid in one operation to the topping, the entire inner surface of the chamber rendered with neat cement not less than 12.50mm in thickness of 1:2 cement sand plaster and finished with a floating coat of neat cement 1mm thick left absolutely smooth polished and correct to template including cost of precasted RCC road gully grating and frame including paint with coal tar (as specified in item No. 29.49) complete and to the requirement of the engineer in charge. As per CSR item No. 29.63 (A) (a) and 29.64 (a) (A) Single Road Gully chamber.(a) Size 610mm x 457mm x 800mm and Reduction for every 7.50cm depth of road gully chamber from the rate of item No. 29.63 above (a) Single Road Gully Chamber (Deduction 310 x 3 = 930

Providing and fixing in position SWR UPVC special for soil waste vent or anti siphonage pipes as per as per IS - 14735 including cutting and wastage etc. cutting holes in walls roofs or floors etc. and making good to its original condition but excluding cost of lead joining. For 160mm o/d pipes Door Elbow 90 Degree (All side socketed) each (Pb. CSR Ref. No. 30.81iiiA(iii)) (T/R)