REPAIR TO ROOF TREATMENT IN TECHNICAL AREA AT AF STATION CHANDIGARH UNDER GE (AF) CHANDIGARH.

Amount

Note :The unit rate quoted by the tenderer under Col No (13) of Sch `A’ (BOQ) unless specifically mentioned otherwise such as labour only/fixing only, for all items of works shall be deemed to be including cost of all materials, labour, tools and plants, testing and commissioning of work in position complete as required for entire completion of work.

Demolition of mud phuska on roofs any thickness including mud plastering (whether full thickness removed or only a part thereof) and removal of rubbish outside MoD land , complete all as specified and directed by Engineer-in-Charge.

Water proofing treatment on horizontal roof surfaces in the following manner including removing of all the debris out of MoD land , complete all as specified and directed by Engineer-in-Charge :- (a) Taking out of existing treatment such as tarfelt including roof treatment , cleaning of concrete surfaces and washing down of any description for preparation or as specified in particular specification before water proofing treatment of roof horizontal surfaces including raking out joints, hacking for key, scrubbing down with water, etc. (b) Roughening of surfaces of old concrete floor/slab by wire brushing, sweeping, cleaning and washing down to remove all loose dust etc, and brushing neat cement slurry @ 3.00 kg/Sqm on floor/roof surface before PCC padding. (c) Applying a coat of bituminous primer conforming to IS-3384 :1986 @ 0.40 ltr/sqm (d) Applying evenly a tack coat of industrial bitumen 85/25 conforming to IS-702 at the rate of 1.2 kg per sq.m including cleaning of surfaces . (e) Providing with 3 mm thick APP water proofing membrane minimum weighing 3kg/sqm reinforced with non woven polyster matt (wt. not less than 150 gms/sqm) laid on primed surface by using butane torch by torch application with a side lap of 10 cm & 15 cm end lap weinghing not less than 3 kg/sqm duly sealed at over laps & joints with flame (by torch application) all as per manufacturer’s instructions.

Water proofing treatment on vertical surfaces in the following manner including removing of all the debris out of MoD land , complete all as specified and directed by Engineer-in-Charge :- (a) Taking down of existing treatment and plastered of wall surfaces of any description ,cleaning of surfaces and washing down for preparation before water proofing treatment of vertical surfaces including raking out joints, hacking for key, scrubbing down with water, etc. (b) 15 mm thick on brick or concrete surfaces in cement mortar (1:4) mixed with 3% of WPC and finishing the surface even and fair without using extra cement . (c) Applying a coat of bituminous primer conforming to IS-3384 :1986@ 0.40 ltr/sqm (d) Applying evenly a tack coat of industrial bitumen 85/25 conforming to IS-702 at the rate of 1.2 kg per sq.m including cleaning of surfaces . (e) Providing with 3 mm thick APP water proofing membrane minimum weighing 3kg/sqm reinforced with non woven polyster matt (wt. not less than 150 gms/sqm) laid on primed surface by using butane torch by torch application with a side lap of 10 cm & 15 cm end lap duly sealed at over laps & joints with flame (by torch application) all as per manufacturer’s instructions.

Plain cement concrete (1:2:4) type B-1 using 20 mm graded mechanically crushed stone aggregates as in roof padding to maintain the required slope or to prepare gola etc icluding weathering slightly ropunded or chamfered angles and throating as directed including necessary form work in and including demolition of (un-reinforced) cement concrete of any description or as roof padding and covering concrete in any position not otherwise specifically provided for and remove all the debris out of MoD land , complete all as specified and directed by Engineer-in-Charge.

40 mm thick brick tiles laid on roof and including 15 mm thick screed bed in CM (1:6) and jointed grouted flush in cement mortar (1:3) mixed with 5% of crude oil by weight of cement in and including dismantling of stone slabs and tiles of any description or thickness laid dry or with mortar and pointed and removal of rubbish outside MoD land , complete all as specified and directed by Engineer-in-Charge.

Cement concrete tiles 25cm x 25cm x 22mm thick, machine pressed in and including laid on 15 mm thick screed bed in CM (1:6); set jointed and pointed in neat cement slurry in floors, and cut and polished with grey cement and no pigment in and including dismantling of stone slabs and tiles of any description or thickness laid dry or with mortar and pointed and removal of rubbish outside MoD land , complete all as specified and directed by Engineer-in-Charge.

Steel water tubing, 15 mm bore medium grade ISI Marked, galvanized with all fittings and fixed complete to walls, ceiling or laid in floors,cutting existing steel tubing & screwing, if required for alterations and additions in and including taking up or down existing unservicable tubing and connections, cleaning for re fixing or removal to store, complete all as specified and directed by Engineer-in-Charge. Note: Fittings & specials as required shall be provided by the contractor. Contractor's rate shall be deemed to include the cost of fittings provided.

Steel water tubing, 20 mm bore medium grade ISI Marked , galvanized with all fittings and fixed complete to walls, ceiling or laid in floors ,cutting existing steel tubing & screwing, if required for alterations and additions in and including taking up or down existing unservicable tubing and connections, cleaning for re fixing or removal to store, complete all as specified and directed by Engineer-in-Charge. Note: Fittings & specials as required shall be provided by the contractor. Contractor's rate shall be deemed to include the cost of fittings provided.

Rotational moulded PVC, tripple layered, water storage tanks of capacity 500 litre (cylindrical vertical with closed top), ISI Marked, hoisted and fixed in position, with & including all fittings such as GI tank nipple etc. including balll valve high pressure of PTMT with epoxy coated aluminium door and high density plastic ball screwed for 20mm dia iron pipe and fixed (minimum wieght 20mm 210gms in and including dismantling PVC water tanks exc 251 ltr but n. exc 500 ltr capacity by disconnecting existing water connection and removal from site ,complete all as specified and directed by Engineer-in- Charge.

Rotational moulded PVC, tripple layered, water storage tanks of capacity 1000 litre (cylindrical vertical with closed top), ISI Marked, hoisted and fixed in position, with & including all fittings such as GI tank nipple etc. including balll valve high pressure of PTMT with epoxy coated aluminium door and high density plastic ball screwed for 20mm dia iron pipe and fixed (minimum wieght 20mm 210gms in and including dismantling PVC water tanks exc 501 ltr but n. exc 1000 ltr capacity by disconnecting existing water connection and removal from site ,complete all as specified and directed by Engineer-in- Charge.

Gun-metal, globe or gate valves, with iron wheel head, screwed both end for iron pipe and fixed for 15 mm bore dia fixed as in repair , complete all as specified and directed by the Engineer in -Charge.

Gun-metal, globe or gate valves, with iron wheel head, screwed both end for iron pipe and fixed for 20 mm bore dia fixed as in repair , complete all as specified and directed by the Engineer in -Charge.

Disconnecting existing tanks of capacity exceeding 250ltrs but n. exceeding 500ltrs, draining out of water, setting a side( or lowering if required) for repair/cleaning and removing accumulated sludge/dirt scales from tank bottom, side and from mouths of circulating pipes of service tanks located on roof of building and disinfecting the tank using bleaching powder to make the tank bacteria free, writing by stencil date of cleaning of tank with white synthetic enemel paint on black ground "Cleaned on (date)" height of words100mm, and hoisting if required, refixing and reconnecting in position after cleaning ,complete all as specified and directed by Engineer-in- Charge.

Disconnecting existing tanks of capacity exceeding 501ltrs but n. exceeding 1000ltrs, draining out of water, setting a side( or lowering if required) for repair/cleaning and removing accumulated sludge/dirt scales from tank bottom, side and from mouths of circulating pipes of service tanks located on roof of building and disinfecting the tank using bleaching powder to make the tank bacteria free, writing by stencil date of cleaning of tank with white synthetic enemel paint on black ground "Cleaned on (date)" height of words100mm, and hoisting if required, refixing and reconnecting in position after cleaning and removal of rubbbish outside MOD land,complete all as specified and directed by Engineer-in- Charge.

PVC (SWR) pipes 110 mm bore single socketed in any length with rubber rings joints fixed to walls with necessary brackets and making good the mouth of rain water pipe in and including taking down old eaves and gutters and rainwater pipe ( any size and pattern) ,complete all as specified and directed by Engineer-in- Charge.

PVC (SWR) bends any radius 110mm bore fixed with solvent cement in any position as per site requirement , complete all as specified and directed by Engineer-in-Charge.

Note :Schedule of credit to be deducted on acceptances of bid.Details of Schedule of credit is given in tender documentse.

SHRI GANESH CONSTRUCTION CO. (BID ID -3106898)

jmv engineers (BID ID -3122522)

Baba Engineers and Contractors (BID ID -3109299)

M/S NAVEEN PATHANIA (BID ID -3122169)

M/s VARINDER PAL SINGH AND CO (BID ID -3121089)