REPAIR TO ROOF LEAKAGE, TANK CLEANING AND OTHER CONNECTED ITEMS IN CERTAIN JCOs/ORs MD ACCN UNDER AGE B/R-II OF GE (EAST) AGRA

Amount

Taking down of old roof treatment of any description including mud phushka, concrete padding, tiles, cement plaster from roof surfaces etc including cleaning ,brushing and watering to joints and grooves and removing the debris to a distance exc. 250 mtr and not exc 500 mtr from the roof etc complete all as specified and directed.

Material & labour for cleaning the surface of the stone/concrete roof and slab with mechanical grinder and specialized water misting techniques applying water jet using a fine nozzle sprinkling system calibrated to spray a fine mist along the stone/concrete surface and removing complete all as specified and directed by Engineer in charge and applying one coat of sealer @ 0.2 kg/sqm with capacity of Drastic reduction in water absorption - ASTM C642-97 with Improved resistance to chloride penetration in concrete surface (RCPT) as per ASTM C1202 and Improved abrasion resistance of surface when tested as per ASTM C779 and low alkaline silicate based, first reacting with other free oxides and hydroxides like calcium hydroxide (free lime) inside the concrete to form corresponding silicates, which are stronger molecules. Total Solids Content 29-30% approx. Specific Gravity at 25°C 1.25 +/- 0.02 Ph Alkaline VOC Content Nil This sealer gels in the empty pores which is insoluble silica deposits. Finally forms a microscopic siliceous layers on the surface which results in strong ceramic coating, firmly bonded to the surface by strong silanol bonds. This is stable against UV and high temperature. Note:- This item has to be applied on mother slab before laying any screed bed or PCC as a waterproofing process.

M&L for Plain cement Concrete type B-0 1:2:4 ( 12.5 mm graded aggregate) 25 mm thick average as in roof padding finish even and smooth etc complete all as specified & directed.

Applying the non shrink high mechanical strength properties epoxy based mortar @ 5kg / RM on all corner joints of wall to prevent the capillary formation from wall to roof area; by three component system comprising of base, hardener and quartz filler having ER Base and Hardener with Quartz filler etc complete all as specified & directed.

M & L applying two coats of resin sealer @ 0.2 lit/sqm for each layer with reinforced nanometer sized particles preventing “peeling off” effect from floor/bottom. It is advised to apply in following steps : first coat to be done on cleaned surface mixing with diluent as per manufacturer’s manual and after drying surface immediately final coat has to be applied on primed surface buffing can be further done for glossy surface. Note : This item has to be applied on PCC or 10 mm thick plastered surface as a waterproofing process.

M & L one coat of primer on well prepared surface as roof and parapet walls @ 0.2 lit/sqm (thickness = 0.85 mm) which is the combination of base and hardener water based epoxy system. It provides high hardness and abrasion resistance. It can be applied on dry or slightly damp substrates, without standing water. After 24 hours of application of primer, and cleaning the surface with air blower, first coat of elastomeric pre-polymer hybrid chemistry based two component waterproofing membrane will be applied @ 0.2 lit /sqm for each layer (thickness = 0.85 mm) on roof and parapet walls. And second coat will be applied after 24 hours of first coat application etc complete all as specified & directed.

M&L for provn of polymeric water proofing roof treatment to RCC roof described as under and all as specified :- (a) Preparing RCC Roof Surface & applying one coat of bitumen primer @ 0.30 kg/sqm. (b) Applying one coat of hot blown bitumen of grade 85/[email protected] kg/sqm (c) Laying of water proofing treatment with APP modified polymeric of weight not less than 3 kg/sqm water proofing membrane with non woven polyster mat of weight 160 gm/sqm as centre core and without multiple layers of polyethylene finished on top & bottom with 7 micron thick flammable polyethylene applied by thermo fusion using LPG torch on the bottom portion of the membrane unrolled and bonded to substance with side and end laps 75 mm & 100 mm as per manufacturer's all as specified & directed.(d) Applying one coat of hot blown grade bitumen 85/25 grade @ 1.20 kg/sqm over the membrane. (e) Finally provide PCC tiles 250*250 mm & 20 to 25 mm thick machine made over 15 mm thick screed bed in CM 1:4 grouted and pointed in CM 1:3 mixed with & including WPC @3% by wt. of cement complete all as specified and directed.

Demolition of brick work or stone masonry including all quoins, arches, pillars etc built in CM complete all as specified & directed.

M&L for Brickwork with subclass ‘B’ bricks, straight or curved on plan exc 6m mean radius built in CM 1:6 complete all as specified & directed.

M&L for brickwork with subclass ‘B’ bricks, straight or curved on plan to any radius in half brick thick built in CM 1:4 complete all as specified & directed.

Taking down cement plaster on wall/ceiling/roof etc including raking out joints, hacking for key scrubbing down with water etc complete all as specified and directed.

M&L for rendering 15 mm thick cement plaster in CM 1:4 on brick work / concrete surfaces of cement & finishing the surfaces even and smooth without using extra cement etc complete all as specified and directed.

M & L for two coat of cement base paint on new plastered surfaces of wall including preparation of surfaces complete all as specified and directed.

Disconnecting existing tanks, setting aside (or lowering if required) for repairs, cleaning, etc. and hoisting if required reconnecting and re-fixing in position (Capacity 500 Ltrs) incl. nipple if required complete all as specified and directed.

Disconnecting existing water tanks setting aside capacity exc 250 & n exc 500 ltrs and repairing, cleaning and removing all scale and dirt etc from tanks and from mouths of circulating pipes and cleaning with bleaching powder, hoisting if required/removing and re-fixing in same and writing Date of Cleaning including old or new fitting etc complete all as specified and directed.

Disconnecting existing water tanks setting aside capacity exc 500 & n exc 1000 ltrs and repairing, cleaning and removing all scale and dirt etc from tanks and from mouths of circulating pipes and cleaning with bleaching powder, hoisting if required/removing and re-fixing in same and writing Date of Cleaning including old or new fitting etc complete all as specified and directed.

S&F in repair 500 litres capacity Rotational moulded polyethylene water storage tanks (Cylindrical vertical with closed top) hoisted and fixed in position including 20 mm dia PVC float valve & nipple complete all as specified and directed.

Taking up or down 20mm dia steel tubing /PPR pipe connections etc ,including cleaning for Refixing or removal to store complete all as specified and directed.

S&F 20 mm bore GI tubes medium grade, galvanised with all fittings and fixed complete to walls and ceiling or laid in floors complete all as specified and directed.

Demolition of cement concrete (unreinforced) of any description and in any position not otherwise specifically provided complete all as specified and directed.

M&L for Providing cement concrete type B1 1:2:4 using 20 mm graded aggregate in roof kerbs or mud stops, rounded or chamfered on edges or water tank staging etc complete all as specified and directed.

M&L for Providing cement concrete type B0 1:2:4 using 12.5 mm graded aggregate in lintels upto 1.5m clear span, cills, steps; seismic and other similar bands, plinth courses, string courses, lacing courses, parapets and railings upto 60 cm in height, copings, kneelers, apex stones, bed plates, water troughs and the like including weathering, slightly rounded or chamfered angles and throating, complete all as specified and directed.

3Krishna Enterprises (BID ID -3067002)

Balaji Associates (BID ID -3066623)

VARDMAN ENTERPRISES (BID ID -3066918)

M/s Kok Singh Sisodia (BID ID -3069074)

M/s Laxmi Associate (BID ID -3067651)

M/S RADHEY GOVIND ENTERPRISES (BID ID -3068261)

M/S J S ENTERPRISE (BID ID -3069061)

Attar Singh and Sons (BID ID -3066029)