REPAIR TO ROOF TREATMENT IN CERTAIN BLDG OF OTM AND MD ACCN ON EAST SIDE OF LEHL MARG INCLUDING TELEPARA UNDER GE (S) BINNAGURI.

Amount

Taking down tar felt with cement plaster from roof surfaces and lowering and removing the same to a distance exc. 50m and n. exc. 100m incl roughening of old concrete suirface of roof by wire brushing and cleaning the surface to remove all loose dust etc complete all as specified.

M&L for 40 mm thick PCC (1:2:4) type B-0 with using 12.5 mm graded stone aggregate as in roof padding etc complete all complete as specified.

M & L screed bed or bedding layer 10 mm thick screed bed or bedding layer in CM (1:4) mixed with WPC as per manufacturer instruction for laying of APP membrane complete all as specified. Make: 'Plastocrete Plus' of Sika/ 'Pidiproof LW' of Pidilite for water proofing compound. Note: (i) WPC shall be measured and paid for separately as 'Supply only'. (ii) WPC to be mixed @200ml per 50 Kg bag of cement all as manufacturers instruction.

Supply only liquid water proofing compound (WPC) of best quality complete all as specified.

Supply only oil based bitumen primer @ 0.40 Ltr/Sqm (conforming to IS-3384) over the PCC finished roof surfaces all as specified.

Supply and laying APP 3mm thick five layered polymeric membrane (weight not less than 3 Kg per Sqm) reinforced with non-woven polyester matt of central core 90 micron thick (weight not less than 150gms/sqm) high density polythene film, protected on both sides with high quality polymeric asphaltic mix protected on both sides with thermo-fusible HM HDPE film laid on primed surface by torch application all as per manufacturer’s specification and as directed by the Engn-in-Charge. Make: “Torchshield P3160” of Pidilite/ “Super thermolay of STP or equivalent. Note: (i) Membrane shall be laid using butane torch and sealing all joints etc all as per Para 11.44.5 of SSR Part-I. (ii) Bitumen primer shall be measured and paid for separately as ‘Suppply only’

M & L for finishing the Bituminous surface with aluminium paint @0.15 Ltr/sqm as per manufactures specifications complete all as specified.

M&l cutting out crack to v-section in existing roof of terrace cleaning out wetting grouting with cement sand slurry 1:3 complete all as specified.

M& L for Providing, cement concrete in roof kerbs or mud stops, rounded or chamfered on edges of 1:2:4 of B0 complete all as specified.

Disconnecting existing tanks of capacity exc 250 Ltrs and n. exc 500 Ltrs, setting aside (or lowering if required) for repairs, cleaning, etc. and hoisting if required reconnecting and re-fixing in same position after cleaning and removing all scale and dirt, etc, from tanks and from mouths of circulating pipes, etc complete all as specified.

Disconnecting existing tanks of capacity exc 500 Ltrs and n. exc 1000 Ltrs, setting aside (or lowering if required) for repairs, cleaning, etc. and hoisting if required reconnecting and re-fixing in same position after cleaning and removing all scale and dirt, etc, from tanks and from mouths of circulating pipes, etc complete all as specified.

Material and labour as in repair for hoisting and fixing rotational moulded polyethylene(double layer) LLDPE water storage tanks 500 lit capacity (Cylinderical vertical with polythene foam insulation as intermediate layer), ISI marked(IS-12701:1996) hoisted and fixed in position including inlet, oulet and over flow connection etc complete all as specified.

Material and labour as in repair for hoisting and fixing rotational moulded polyethylene(double layer) LLDPE water storage tanks 1000 lit capacity (Cylinderical vertical with polythene foam insulation as intermediate layer), ISI marked(IS-12701:1996) hoisted and fixed in position including inlet, oulet and over flow connection etc complete all as specified.

S&F 15 mm dia PVC ball cock (PVC float valves) complete high pressure with epoxy coated aluminum rod and high density plastic ball screwed for iron pipe and fixed as required to use reducer and check nut complete all as specified.

S&F 20 mm dia PVC ball cock (PVC float valves) complete high pressure with epoxy coated aluminum rod and high density plastic ball screwed for iron pipe and fixed as required to use reducer and check nut complete all as specified.

Taking up or down GI 15mm bore pipe and connection including cleaning for refixing or removal from site complete all as specified.

All as per item No.16 above but 20mm bore complete all as specified.

S&F tubing,medium grade,15mm bore with all fittings fixed to walls and ceiling or laid in floors including testing complete all as specified.

All as item No 18 herein before but 20mm bore complete all as specified.

Supply and fix in repair for PVC (SWR) pipes 110mm dia type 'A', single socketed, conforming to IS-13592:1992 in any length with rubber ring joints laid in trenches or in floors complete all as specified.

Ditto all as per item No 20.00 above but in wall complete all as specified.

Supply and fix in repair for PVC (SWR) pipes 75mm dia type 'A', single socketed, conforming to IS-13592:1992 in any length with rubber ring joints laid in trenches or in floors complete all as specified.

M&L for 110 mm bore PVC (SWR) vent cowl complete all as specified.

M&L PVC (SWR) bends with access door of 110mm bore any radius complete all as specified.

Taking down of cement plaster on brick (or) concrete wall including racking out joints hakins for key sinebling down with water etc complete all as specified.

Material and labour rendering 15 mm thick cement plaster in CM 1:4 on fair faces of brick/concrete work surfaces mixed with integral water proofing compound all as per manufacturer's instruction and as specified. Make: 'Plastocrete Plus' of Sika/ 'Pidiproof LW' of Pidilite for water proofing compound. Note: WPC shall be measured and paid for separately as 'Supply only'.

M & L for preparing new Plastered surfaces of walls and finishing the walls with exterior acrylic paint of required shade over a coat of primer complete all as per manufacturer's specification and as specified.

M & L for complete removal of Plastered surfaces of walls and finishing the walls with exterior acrylic paint of required shade over a coat of primer complete all as per manufacturer's specification and as specified.

Dismantling Asbestos cement (corrugated,semicorrugated, etc.) sheets in roof coverings complete all as specified.

Supply and fix 0.50mm thick prepainted galvalume polyester coated (SMP coating) coloured metal roofing sheet trapezoidal profile having tensile strength 550Mpa as in roof covering fixed with self drilling screws with EPDM washer etc complete all as specified.

---Ditto all as per item No 30.00 above but as in eaves board .

Dismantling wrought iron or mild steel work of any description as in door, gates etc and similar works complete all as specified.

S&F steel work in tubular trusses i.e. Truss bottom, top bend, sides, side supports, holding plates, posts and base plate with bolt for joining with stud column etc including special shaped washers etc complete using ERW or induction butt welded tubes conforming to IS 1161-1979 grade St-240 complete all as specified.

M&L for flat iron in fencing including cutting tops to shape as directed, drilling holes, notching for wire etc flat iron fillets including all necessary drilling, bolting or revetting etc and similar work conforming to Fe-290 Gde E-165 complete all as specified.

M/L applying two coat of synthetic enamel paint over a coat of red oxide primer after preparation of new steel surfaces over exc 10cm girth complete all as specified.

M/s. RAMPHAL GARG (BID ID -3103795)

CENTRAL ENGINEERING WORKS (BID ID -3103646)

BBKundu (BID ID -3112157)

L. B. SHARMA (BID ID -3107995)

SS SHARMA (BID ID -3108201)

S K GUHA (BID ID -3106669)