15EECBSNLCDBGL202425

Amount

Repair to plaster of thickness 12mm to 20 mm in patches of area 2.5 sqm and under, including cutting the patch in proper shape, raking out joints and preparing plastering the wall surface with white cement based polymer modified self curing mortar, including disposal of rubbish, all complete as per the direction of Engineer-In- Charge.

Providing and laying cement concrete in retaining walls, return walls, walls (any thickness) including attached pilasters, columns, piers, abutments, pillars, posts, struts, buttresses, string or lacing courses, parapets, coping, bed blocks, anchor blocks, plain window sills, fillets, sunken floor, etc., up to floor five level, excluding the cost of centering, shuttering and finishing :

1:2:4 (1 Cement : 2 coarse sand (zone-III) derived from natural sources : 4 graded stone aggregate 20 mm nominal size derived from natural sources)

Cleaning of entire roof (G.I.sheet roofing) of R.R.Nagar T.E.Building by removing dry leaves, vegetation debris and other deposited / accumulated materials etc including disposal of rubbish to dumping ground up to a distance of 50m outside the periphery of building etc. complete as per the direction of the Engineer-in- charge.

Filling of wall cracks at R.R.Nagar T.E.Building using crack filler of approved make of FOSROC Renderoc CS crack filler of white shade and REPACRETE PREMIUM SBR OF CLOV CHEM (INDIA) Private Limited on both inner and outer surface of wall, by cleaning the area thoroughly ensure the surface is free from dust and loose particles. Press the Crack filler paste into the cracks using a spatula or putty knife. Level the surface with a putty knife to get a smooth & clean surface. Leave the filled surface upto 24 hours for Air cure etc complete all as per the manufacturers specifications & applications and as directed by the Engineer in Charge.

Removing of false ceiling tile/boards without damaging the false ceiling frames and refixing the same after attending necessary repairs etc complete in all respect as directed by the E.I.C.

Providing and fixing false ceiling at all height of 12.5 mm thick tapered edge gypsum plain board conforming to IS: 2095-(Part I): 2011 (Board with BIS Certification marks) with 25mm long dry wall screws @ 230 mm interval, including fixing of gypsum board to ceiling section and perimeter channel with the help of dry wall screws of size 3.5 x 25 mm at 230 mm c/c, including jointing and finishing to a flush finish of tapered and square edges of the board with recommended jointing compound , jointing tapes , finishing with jointing compound in 3 layers covering upto 150 mm on both sides of joint and two coats of primer suitable for board, all as per manufacturer's specification and also including the cost of making openings for light fittings, grills, diffusers, cutouts made with frame of perimeter channels suitably fixed, all complete as per drawings, specification and direction of the Engineer in Charge.

12.5 mm thick tapered edge gypsum plain board conforming to IS: 2095- (Part I) : 2011 (Board with BIS certification marks)

Cutting of groove in brick wall upto width and depth of 75mm with mechanical cutting machine, for inserting A.C corrugated roofing sheets, filling and plastering the grooves with Cement mortar 1:4, mixed with water proofing compound, upto 50mm over the sheets, to avoid entry of water inside the wall etc including disposal of debris within a lead of 50 mts complete in all respect as directed by the E.I.C.

Deduction for the cost for taking over the old materials obtained from demolition on as is where is basis:-

Existing available G.I.Sheet roofing sheet of any size (measurements will be based on roofing area before dismantling of GI sheet)

Dismantling roofing including ridges, hips, valleys and gutters etc., and stacking the material within 50 metres lead of:

G.S. Sheet

Providing and fixing precoated galvanised iron profile sheets (size, shape and pitch of corrugation as approved by Engineer-in-Charge) of total coated thickness 0.50 mm (base metal of minimum 0.45 mm thickness with total coating thickness of 0.05mm) with zinc coating 120 grams per sqm as per IS: 277, in 240 mpa steel grade, 5-7 microns epoxy primer on both side of the sheet and polyester top coat 15-18 microns. Sheet should have protective guard film of 25 microns minimum to avoid scratches during transportation and should be supplied in single length upto 12 metre or as desired by Engineer-in-charge. The sheet shall be fixed using self drilling /seIf tapping screws of size (5.5x 55 mm) with EPDM seal, complete upto any pitch in horizontal/ vertical or curved surfaces, excluding the cost of purlins, rafters and trusses and including cutting to size and shape wherever required.

Providing and fixing precoated galvanised steel sheet roofing accessories of total coated thickness 0.50 mm (base metal of minimum 0.45 mm thickness with total coating thickness of 0.05 mm) with Zinc coating 120 gram per sqm as per IS: 277, in 240 mpa steel grade, 5-7 microns epoxy primer on both side of the sheet and polyester top coat 15-18 microns using self drilling/ self tapping screws complete :

Ridges plain (500 - 600mm)

Disposal of building rubbish / malba / similar unserviceable, dismantled or waste materials by mechanical means, including loading, transporting, unloading in the dumping grounds etc. all complete as directed by the Engineer-in-charge.