IITR/CW-16(12)/2023-24/Works

Amount

SH: External Painting Work

Finishing walls with Premium Acrylic Smooth exterior paint with Silicone additives of required shade on old work (Two or more coats applied @ 1.43 Ur/ 10 sqm) over existing cement paint surface) over roughcast sand faced and plain surface including removal of old & loose old paint, vegetation growth, scales, dust, oil, grease etc and necessary minor repairs to scratches etc all complete up to 26 meter height, nothing shall be paid extra for height up to 26 meter and painting on rough cast sand faced surface of external wall. The bidders are advised to quote their rates accordingly for complete item as described above.

Providing and applying crystalline mortar by mixing in the ratio of 4.5 : 1 (4.5 parts crystalline mortar : 1 part water) for the treatment of faulty construction joints, cracks, tie rod holes and spalled & honeycombed surface of RCC underground structures like basement, water tanks, bridge deck etc. to ensure water tightness. The crystallie mortar shall conform to the EN 1504-3 having compressive strength Class R4 ?45 MPa and adhesive bond strength Class R3 ?1.5 MPa. The work shall be carried out all complete as per specification and the direction of the engineer-in-charge. The product performance shall carry guarantee for 10 years against any leakage. For sealing cracks and faulty construction joints, routed out/making U-shape groove size 25x25mm and then primed the area with integral crystalline slurry @0.05kg/ running metre and while the surface is tacky filled the groove upto surface with crystalline mortar @1.50kg/ running metre. Once crystalline mortar is touch dry then finally applied two coats of integral crystalline slurry @0.05kg/running metre per coat.all complete up to 26 meter height, nothing shall be paid extra for height up to 26 meter surface of external wall. The bidders are advised to quote their rates accordingly for complete item as described above.

Providing and applying crystalline mortar by mixing in the ratio of 4.5 : 1 (4.5 parts crystalline mortar : 1 part water) for the treatment of faulty construction joints, cracks, tie rod holes and spalled & honeycombed surface of RCC underground structures like basement, water tanks, bridge deck etc. to ensure water tightness. The crystallie mortar shall conform to the EN 1504-3 having compressive strength Class R4 ?45 MPa and adhesive bond strength Class R3 ?1.5 MPa. The work shall be carried out all complete as per specification and the direction of the engineer-in-charge. The product performance shall carry guarantee for 10 years against any leakage. For patching of tie rod holes, prepared tie rod hole surface and then primed the area with integral crystalline slurry @0.070kg/sqm and while the surface is tacky repair and then filled the tie rod holes with crystalline [email protected] per hole. The crystalline mortar should be tightly rodded into tie rod holes or packed tightly (For 25x25x25 mm tie rod hole, use 0.040kg to fill the hole)all complete up to 26 meter height, nothing shall be paid extra for height up to 26 meter surface of external wall. The bidders are advised to quote their rates accordingly for complete item as described above.

Repairs to plaster of thickness 12 mm to 20 mm in patches of area 2.5 sq.meters and under, including cutting the patch in proper shape, raking out joints and preparing and plastering the surface of the walls complete, including disposal of rubbish to the dumping ground, all complete as per direction of Engineer-in-Charge. With cement mortar 1:4 (1cement: 4 coarse sand)

Renewing glass panes, with putty and nails wherever necessary including racking out the old putty: Float glass panes of nominal thickness 4 mm (weight not less than 10kg/sqm)

Providing and applying white cement based putty of average thickness 1 mm, of approved brand and manufacturer, over the plastered wall surface to prepare the surface even and smooth complete.

Applying priming coats with primer of approved brand and manufacture, having low VOC (Volatile Organic Compound) content. With water thinnable cement primer on wall surface having VOC content less than 50 grams/litre

Structural steel work riveted, bolted or welded in built up sections, trusses and framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete up to 27 meter height, nothing shall be paid extra for height up to 27 meter surface of external wall. The bidders are advised to quote their rates accordingly for complete item as described above.

Painting with synthetic enamel paint of approved brand and manufacture of required colour to give an even shade : One or more coats on old work including de-rusting by sand papering, cleaning all complete up to 27 meter height, nothing shall be paid extra for height up to 27 meter surface of external wall. The bidders are advised to quote their rates accordingly for complete item as described above.

Applying priming one coat with ready mixed red oxide zinc chromate primer of approved brand and manufacture on steel work including de-rusting by sand papering, cleaning all complete up to 27 meter height, nothing shall be paid extra for height up to 27 meter surface of external wall. The bidders are advised to quote their rates accordingly for complete item as described above.