2nd CALL FOR REPAIR TO ROOF TREATMENT IN DOMESTIC AND OTM AREA AT AF STATION SIRSA UNDER GE (AF) SIRSA

Amount

Demolition of brick work built in cement mortar and in any position including all quoins, arches and pillars, etc. complete all as specified and as directed.

Material and labour for brick work with Fly Ash Bricks (old size bricks), straight or curved on plan exc. 6.0 metre mean radius, built in cement mortar 1:6, upto double story complete all as specified and as directed.

Material and labour for 6mm thick asbestos cement, corrugated or semi-corrugated sheets in roofs, walls etc, fixed with L-type or J-type hook bolts, including dismantling of unserviceable sheets complete all as specified and as directed by Engineer-in-Charge.

Supply and fixing in replacement of galvanised corrugated mild steel 0.63mm thick sheeting with two corrugations side lap, fixed with coach screws and washers, in roofs, walls etc with grade of zinc coating 275 including dismantling of unserviceable sheet complete all as specified and as directed by Engineer-in-Charge.

Supply and fixing in replacement of plain galvanised mild steel 0.8mm thick sheeting in ridges, hips, valley gutters, drip and straight flashing (length and girth as fixed) etc with grade of zinc coating 275 including dismantling of unserviceable sheet complete all as specified and as directed by Engineer-in-Charge.

Material and labour for preparation of new AC sheets in roof applying two coats of cement base paint (in camouflage pattern) with approved tint over a coat of primer (as per Manufacturer's instructions), complete all as specified and as directed.

Taking up or down steel tubing 15mm bore (dia) with fittings/ connections, segregating serviceable pipes and fittings/ connections and keep in safe custody for re-use, complete all as specified and as directed.

Taking up or down steel tubing 20mm bore (dia) with fittings/ connections, segregating serviceable pipes and fittings/ connections and keep in safe custody for re-use, complete all as specified and as directed.

Supply and fixing of 15mm bore steel water tubing 'medium grade', galvanised with all fittings like elbow, tee, socket, bend etc and fixed to wall, ceiling or laid in floor complete all as specified and directed.

Supply and fixing of 20mm bore Steel water tubing 'medium grade', galvanised with all fittings like elbow, tee, socket, bend etc and fixed to wall, ceiling or laid in floor complete all as specified and directed.

Refixing old steel tubing 15mm bore (dia) and connections (Serviceable pipes and connections obtained from Srl Item No. 07 here-in-before) in new or old position (fixed to wall, ceiling or laid in floor) including cleaning both inner and outer surfaces of pipes by using wire brush including provision of new GI connections/ fittings like elbow, tee, socket, bend etc (as required/ordered at site) complete all as specified and directed.

Refixing old steel tubing 20mm bore (dia) and connections (Serviceable pipes and connections obtained from Srl Item No. 07 here-in-before) in new or old position (fixed to wall, ceiling or laid in floor) including cleaning both inner and outer surfaces of pipes by using wire brush including provision of new GI connections/ fittings like elbow, tee, socket, bend etc (as required/ordered at site) complete all as specified and directed.

Supply and fixing in replacement of rotational moulded polyethene water storage tank, 500 litre capacity, cylindrical, vertical with closed top, 3 layered, conforming to IS, hoisted and fixed in position including dismantling of existing water tank complete all as specified and as directed.

Supply and fixing in replacement of rotational moulded polyethene water storage tank, 1000 litre capacity, cylindrical, vertical with closed top, 3 layered, conforming to IS, hoisted and fixed in position including dismantling of existing water tank complete all as specified and as directed.

Supply and fixing in repair of Gun Metal Gate Valve 20mm bore (dia) with iron wheel head including flange, screwed both ends for iron pipe complete all as specified and as directed.

Supply and fixing in repair of Ball Valve 20mm dia (minimum Weight 210 Gram), high pressure of PTMT with epoxy coated aluminium rod and high density plastic ball, screwed for iron pipe, complete all as specified and as directed.

Disconnecting existing tanks of capacity exc. 250 not exc. 500 ltr setting aside (or lowering if required) for repairs, cleaning, etc. and hoisting if required reconnecting and re-fixing in position including cleaning and removal of all dirt, sludge, algae etc. from inside of the tanks complete all as specified and as directed by Engr-in-Charge.

Disconnecting existing tanks of capacity exc. 500 not exc. 1000 ltr setting aside (or lowering if required) for repairs, cleaning, etc. and hoisting if required reconnecting and re-fixing in position including cleaning and removal of all dirt, sludge, algae etc. from inside of the tanks complete all as specified and as directed by Engr-in-Charge.

Dismantling/removing of old roof treatment, of any type any thickness any pattern including dismantling of old brick tiles including screed bed, tar felt, waterproofing membrane etc and cleaning the roof surfaces by brushing, sweeping and scrubbing down with water and removal of debris and disposing outside MOD area complete all as specified and as directed. (Note : Demolition of concrete over RCC roof, if any below the roof treatment, shall be measured and paid separately. Debris shall be disposed off outside AF land by contractor under his own arrangement as per Municipal Corporation/State Govt instructions).

Demolition of mud in roofs any thickness and stripping out/ taking down old existing tarfelt, water proofing membrane, any type from roof including plaster/screed bed, roughening concrete surfaces and cleaning the roof surfaces by brushing, sweeping and scrubbing down with water and removal of debris and disposing outside MOD area complete all as specified and as directed. (Note : Demolition of concrete over RCC roof, if any below the roof treatment, shall be measured and paid separately. Debris shall be disposed off outside AF land by contractor under his own arrangement as per Municipal Corporation/State Govt instructions).

Material and labour for PCC 1:2:4 type B-1 (using 20 mm graded stone aggregate) as in padding over roof slab laid to slope finished even and smooth, roof kerbs, rounded or chamfered on edges complete all as specified and directed.

Supply only Integral Water proofing compound, ISI marked, as approved, complete all as specified and as directed.

Material and labour for roughening of old surfaces of RCC roofs by picking, wire brushing, sweeping clean for removing dust, dirt and layers of de-bonded screed/concrete over the surface etc and washing down with water to remove dust etc and brushing neat cement slurry @ 2.75 kg per sqm complete all as specified and directed.

Material and labour for 10 mm thick screed bed in cement mortar 1:3 over roof mixed with water proofing compound as per manufacturer's instruction complete all as specified and directed. (Note : WPC will be measured and paid separately under respective item.)

Material and labour for water proofing treatment on existing cleaned RCC roof with the following specifications and manufacturer's instructions complete all as specified and directed. (i) Preparing and cleaning of fully dried surfaces as per IS: 3067-1966. (ii) Applying oil/ solvent-based bitumen primer conforming to IS:3384-1968 over the cleaned base @ 0.50 litre per sqm. (iii) Providing a layer of 3mm thick APP modified pre-fabricated five layer, weight not less than 3.6 Kg/sqm, black finished reinforced with non-woven polyster matt membrane with butane torch application. Overlap shall be minimum 100mm on the transverse direction and 75mm on longitudinal direction. (iv) Applying a coat of blown type bitumen of grade 85/25 heated to a working temperature of 180 degree centigrade and applied @1.2 Kg per sqm of the surface area. (v) Sealing of all angles & abutments upstands with extra care to ensure perfect bondage. Sealing of edges well into grooves and protect the seal with a polysulphide/ polyurethane sealant.

Supply and fixing of 40mm thick brick tiles laid over roofs of buildings (upto 4 storey height), jointed and pointed in cement mortar (1:3) mixed with crude oil @ 5% by weight of cement over 15mm thick screed bed in cement mortar (1:3) mixed with water proofing compound complete all as specified and directed. Note:- Water Proofing compound shall be measured and paid separetly under respective item.

Fixing only 40mm thick brick tiles over roofs of buildings (upto 4 storey height), jointed and pointed in cement mortar (1:3) mixed with crude oil @ 5% by weight of cement over 15mm thick screed bed in cement mortar (1:6) mixed with waterproofing compound complete all as specified and directed. Note:- Serviceable brick tiles obtained from dismantling shall be reused. Water Proofing compound shall be measured and paid separetly under respective item.

Refixing of serviceable ball valves (obtained from dismantling of water tanks), any type or size in water tanks complete all as specified and directed.

Demolition of cement concrete of any description and in any position not otherwise specifically provided for (padding over roof of buildings etc.) and removal of debris and disposing outside MOD area complete all as specified and directed.

Material and labour for 15mm thick plasteing in two layers, 10mm + 5mm in cement mortar 1:4, top layer of 5mm thickness mixed with water proofing compound (as per manufacturer's instructions) on brick/ stone walls or concrete surfaces finished even and fair (upto any height) for external surfaces complete all as specified and direted. Note : Water proofing compound shall be measured and paid separately as "Supply only".

Material and labour for preparation of newly plastered surfaces and applying exterior wall putty 1.5mm thick for smooth surface and finished with two coats of exterior acrylic emulsion paint (having anti-dust & anti- algae properties) over a coat of suitable exterior primer, applied with rollers to new wall surfaces of any description, over 10cm width or girth not otherwise described, as per manufacturer's instruction, upto 4 storey building heights complete all as specified and directed.

M/s MANN CONSTRUCTIONS (BID ID -3145808)

Ajay Enterprises (BID ID -3144918)

shiv shanker enterprises (BID ID -3148208)

M/s Har Nandi Construction Company (BID ID -3151093)