tender for acrylic based chemical waterproofing treatment over the roof of isd (nid & mid) building ecil hyderabad.---- 1 demolishing brick work manually/ by mechanical means including stacking of serviceable material and disposal of unserviceable material within 50 metres lead as per direction of engineer-in-charge in cement mortar 2 dismantling roofing including ridges, hips, valleys and gutters etc., and stacking the material within 50 metres lead of: asbestos cement sheet 3 20 mm cement plaster of mix : 1:4 (1 cement: 4 coarse sand) 4 15 mm cement plaster on the rough side of single or half brick wall of mix : 1:4 (1 cement: 4 fine sand) 5 cleaning of the expansion joints on roofs up-to 25mm thickness including taking out the damaged joint filter board if any and preparing the same for fresh treatment etc., complete and as directed by engineer-in-charge. 6 providing gola 75x75 mm in cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 stone aggregate 10 mm and down gauge), including finishing with cement mortar 1:3 (1 cement : 3 fine sand) as per standard design : in 75x75 mm deep chase 7 providing and fixing in position 12mm thick bitumen impregnated fiber board conforming to is: 1838, including cost of primer, sealing compound grade-a in expansion joints. note: please read the unit as per cm depth per 100m and quote accordingly. 8 providing and fixing sheet covering over expansion joints with iron screws as per design. aluminium fluted strips 3.15 mm thick. 200 mm wide 9 half brick masonry with common burnt clay f.p.s. (non modular) bricks of class designation 7.5 in superstructure above plinth level up to floor v level. cement mortar 1:4 (1 cement :4 coarse sand) 10 supplying of micro-concrete of grade m25 which shall be cement based prepacked single compacting ready to use after mixing water in specified proportion obtained from approved manufacturer as per specification and directions of engineer-in-charge. 11 providing and fixing machine moulded aluminium covering of approved pattern & design, made out of machine cut aluminium sheet and machine holed for receiving dash fastener, over expansion joints on vertical surfaces/ceiling floors, the fixing on plate in one row on one side of joint only shall be done with stainless steel dash fasteners of 8 mm dia and 75 mm long bolt including providing aluminium washers 2 mm thick & 15 mm dia , at a staggered pitch of 200mm centre to centre including drilling holes in the receiving surface and providing expandable plastic sleeves in holes etc. complete as per direction of engineerin-charge. anodised aluminium sheet 2.5mm thick (anodised transparent or dyed to required shade according to is: 1868, minimum anodic coating of grade ac 15) 12 providing & applying seamless acrylic based chemical waterproofing system with minimum 1 mm dft (dry film thickness excluding reinforcing membrane thickness), including surface preparation as per general notes, primer coat, reinforcing membrane and multiple layers of chemical coat, removing the existing damaged waterproofing treatment, if any, disposing of debris up-to 2 km from the origin, complete all as per the manufacturer s specifications and as directed by eic, using any of the following waterproofing systems. note: overall waterproofing chemical consumption including primer coating shall be 1.6(+/-5%) litre/sqm over horizontal surface and 1 litre/sqm over vertical surface. smartcare damp proof of m/s asian paints dr. fixit newcoat of m/s pidilite brushbond roof guard of m/s fosroc shalicrylr lm hi of m/s stp limited, all conforming to the following technical specifications chemical properties: as per manufacturer s specification physical properties: tensile strength @ 14 days : 0.5 n/mm2 to 1.0 n/mm2 elongation : 100% minimum uv resistant : continuos 500 hrs (min) as per astm d4587 over terrace slab, top of water tank and parapet etc. at all levels 13 providing and applying shrinkage crack filler of dr. fixit crack x paste or other equivalent material including opening the loose part of the existing crack, making the same in v-shape in required depth & width, cleaning the groove by removing dust, oil, grass, loose particles etc., press the crack filler into the crack one time only with a spatula or putty knite and level the surface etc. completed all as per manufacturer s specifications and as per direction of the engineer-in-charge. 14 providing and fixing on wall face unplasticised rigid pvc rain water pipes conforming to is : 13592 type a, including jointing with seal ring conforming to is : 5382, leaving 10 mm gap for thermal expansion, (i) single socketed pipes. 110 mm diameter 15 providing and fixing on wall face unplasticised - pvc moulded fittings/ accessories for unplasticised rigid pvc rain water pipes conforming to is : 13592 type a, including jointing with seal ring conforming to is : 5382, leaving 10 mm gap for thermal expansion. bend 87.5degree 110 mm bend 16 providing and fixing on wall face unplasticised - pvc moulded fittings/ accessories for unplasticised rigid pvc rain water pipes conforming to is : 13592 type a, including jointing with seal ring conforming to is : 5382, leaving 10 mm gap for thermal expansion. shoe (plain) 110 mm shoe 17 disposal of building rubbish / malba / similar unserviceable, dismantled or waste materials by mechanical means, including loading, transporting, unloading to approved municipal dumping ground or as approved by engineer-in-charge, beyond 50 m initial lead, for all leads including all lifts involved. 18 structural steel work in single section, fixed with or without connecting plate, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete. 19 providing and fixing precoated galvanised iron profile sheets (size, shape and pitch of corrugation as approved by engineer-in-charge) 0.50 mm (+ 0.05 %) total coated thickness 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 /self 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. 20 painting with synthetic enamel paint of approved brand and manufacture to give an even shade : two or more coats on new work 21 finishing walls with acrylic smooth exterior paint of required shade : old work (two or more coat applied @ 1.67 ltr/ 10 sqm) on existing cement paint surface 22 grading roof for water proofing treatment with cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20mm nominal size) 23 grading roof for water proofing treatment with cement mortar 1:4 (1cement : 4 coarse sand) 24 extra for providing and mixing water proofing material in cement concrete work in doses by weight of cement as per manufacturer s specification. note: please read the unit as per bag of cement 25 providing and applying of nitobond etc., complete and as directed by engineer-in-charge.
