REPAIRS TO ROOF OF CERTAIN BUILDINGS OF ZONE B IN DRDO TOWNSHIP, MES QTRS, GE (I) OFFICE COMPLEX CHESS COMPLEX AT KANCHANBAGH, HYDERABAD.

Amount

Note:- (Work shall be carried out upto G+5 storey bldg, contractor to quote rates accordingly).

Demolition of cement concrete as in roofs, floors (other than ground floors), beams stair cases, landing, chajjas and similar suspended work, removal of rubbish and debris all as specified and as directed.

Dismantling of existing roof treatment including tar felt/cement plaster/concrete tiles/stone slabs/brick tiles etc from roof surfaces including cleaning the surface and removing the debris from site complete all as specified and as directed by Engr-in-charge.

M&L for Plain Cement Concrete Type B0 1:2:4 (using 12.5 mm graded stone aggregate) as in padding concrete, coving of vertical junctions on roof top incl dismantling old loose /cracked cement concrete complete all as directed by Engr-in-charge.

M&L for brushing neat cement slurry with 3 Kg of cement per Sqm over the RCC slab and sides complete all as directed by Engineer -in- Charge.

M&L for rendering 10mm in CM 1:3 over concrete surfaces on RCC roof slab and parapets mixed with WPC @ 2% by weight of cement shall be carried out complete all as specified and directed by Engr-in-Charge. Note : WPC will be measured under separate item of this schedule.

Supply only integral water proofing compound

Providing and applying brush applied water based PU dispersed polymer modified elastomeric liquid membrane, ShaliUrethane BTD White Color with Zero VOC to from the membrane in situ at site with 3 layers of monolithic, seam less finish having > 500% elongation. The first layer is to be apply primer Shaliprime BTD @200 Gms per sqm and shall act as the prime coat to fill in the cavities. This can be brush or roller applied. For spray application, using any airless spary system with recommended nozzle size at 30:1 at 2 bar pressure. Providing and applying the 2nd coat @ 1 kg per sqm using the soft brush, roller or Spray system with the recommended nozzle size on to the primed surface . Providing and applying 45 Gsm Fiber cloth over the 1st coat, when substrate till the coat is tacky. Providing and applying 3rd coat @ 1 kg per sqm to finish the application for a thickness of 1.2 mm membrane formed in place. The second coat should be applied perpendicular to the first coat for cross linkage and complete as per the specification and directed by Engr-in-charge.

M&L for Cement concrete tiles 25cm x 25cm x 20mm thick, machine pressed; set jointed and pointed in neat cement slurry in roofs with white cement & pigment, and cut and polished complete, on 15 mm thick bed of cement mortar 1:4 (1 cement: 4 coarse sand) as per the specification and directed by Engr-in-charge.

M&L for cutting grooves in brick wall 75mm wide and 65mm deep and sweeping horizontal face of groove with cement mortar (1:3) and making good in CM 1:3 after inserting membrane into the groove complete all as specified and directed by Engr-in-Charge.

M&L for cutting out cracks to 'V' - section in existing roof or terracing, cleaning out, wetting grouting with cement and sand slurry (1:3) .

Taking down cement or cement lime plaster on brick or concrete surfaces etc including racking out joints hacking for keys, scrubbing down with water etc.

Demolition of brick work built in cement mortar or cement lime mortar including all quoins, arches, pillars etc

M&L for brick work built in CM (1:4) with sub clas 'B' bricks, old size bricks, straight or curved on plan exc 6m mean radius complete .

M&L for rendering 15mm thick in cement mortar 1:4 on fair faces of brick work finished even and smooth w/o using extra cement complete all as specified.

M & L for Preparation of new plastered surfaces and applying two coats of weather proof antifungal Acrylic Exterior emulsion paint of Apex Ultima and shade over a coat of approved primer as recommended by the manufacturer over a coat of putty to make surfaces smooth all as required and as directed.

Disconnecting existing tanks of exc 500 & n exc 1000 ltr capacity , setting aside (or lowering if required) for repairs, cleaning and washing properly with bleaching powder etc, and hoisting if required reconnecting and re-fixing in position.

Cleaning and removing all scale and dirt and washing properly with bleaching powder etc, from tanks of exc 500 & n exc 1000 ltr capacity and from mouths of circulating pipes, etc

S&F in repair doubled layered rotational moulded polyethylene water storage tanks (cylindrical vertical with closed top / cover) 1000 Ltrs capacity hoisted and fixed in position all as specified including ball brass valves, high pressure, with polythene float and fly nut complete screwed for 20mm bore iron pipe and including GI nipple/union of 20mm bore to connect GI tubing to PVC tank complete all as directed.

S&F in repair 20mm bore Gun-metal, globe or gate valves, with iron wheel head, screwed both ends for iron pipe and fixed complete all as specified.

Taking up or down steel tubing of 25 mm bore and connections, including cleaning for re- fixing or removal to store

Refixing old steel tubing of 25 mm bore and connections in new or old position (Walls, ceiling, floors, etc.)

S&F 25 mm bore Tubes, 'medium grade' galvanised, with all fitting and fixed complete to walls and ceilings or laid in floors etc

Taking up or down steel tubing of 20mm bore and connections, including cleaning for re- fixing or removal to store

Refixing old steel tubing of 20 mm bore and connections in new or old position (Walls, ceiling, floors, etc.)

S&F 20 mm bore Tubes, 'medium grade' galvanised, with all fitting and fixed complete to walls and ceilings or laid in floors etc

Taking up or down steel tubing of 15 mm bore and connections, including cleaning for re- fixing or removal to store

Refixing old steel tubing of 15 mm bore and connections in new or old position (Walls, ceiling, floors, etc.)

S&F 15 mm bore Tubes, 'medium grade' galvanised, with all fitting and fixed complete to walls and ceilings or laid in floors etc

S&F in repair 20 mm bore Ball valves high pressure of PTMT with epoxy coat ed Aluminium rod & highdensity plastic ball screwed for iron pipe and fixed. (Minimum weight 15mm-142gms/ 2 0mm-210gms./ 25mm-455gms)

Taking down eaves gutters and rain water pipes (any size or pattern), including all fittings, heads, shoes, bends, swan necks, etc including cleaning or refixing or removal to store (measured overall as fixed along the centre line over fittings and accessories) all as specified & directed.

S&F PVC SWR pipe 110mm dia pipe single socketed in any length with rubber ring joints fixed to walls all as specified & directed.

S&F 110mm PVC (SWR )bends with access door of any radius all as specified & directed.

Demolition of reinforced cement concrete is (reinforcement cut as required to facilitate demolition) as in roofs, floors (other than ground floors), beams stair cases, landing, chajjas and parapet walls/RCC watertank walls and similar suspended work, removal of rubbish and debris all as specified and as directed.

Dismantling Asbestos Cement (Corrugated, Semi corrugated etc.) sheets in roof coverings.

M&L Pre- painted galvalume aluminum zinc coating GI based corrugated steel sheet 0.50mm thick of an colour having tensile strength of 550 Mpa as in roof covering/cladding to wall, fixed with self tapping screws as specified and directed by Engr-in-Charge.

Dismantling wrought iron or mild steel work of any description not otherwise provided for

S&F framed work such as grills, gratings, etc with ends of bars shouldered and/ or riveted, or forged into spikes, framed guard bars, barred iron doors, ladders, framed balusters walk ways, railing, frame work of water tanks and similar works conforming to Fe-290, Gde -E- 165

S Anjan Reddy (BID ID -3309680)

Anjana corporation (BID ID -3309833)

Squad 7 Projects and Services Pvt Ltd (BID ID -3309909)

WELDECOR (BID ID -3307662)

SRI SAI ENTERPRISES (BID ID -3307999)

rahi consultant (BID ID -3307380)

M/s K Venkateswara Rao (BID ID -3307376)

PAVAN ENTERPRISES (BID ID -3309100)