tender for urgent repair of stair case and front balcony portion of qtr side of t.e. building at sector 39 noida; 1 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 2 cement concrete flooring 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate) finished with a floating coat of neat cement, including cement slurry, but excluding the cost of nosing of steps etc. complete. a) 40 mm thick with 20 mm nominal size stone aggregate 3 cement plaster skirting up to 30 cm height, with cement mortar 1:3 (1 cement : 3 coarse sand), finished with a floating coat of neat cement. a) 18 mm thick. 4 extra for making chequers of approved pattern on cement concrete floors, steps, landing, pavements etc. 5 12 mm cement plaster of mix : a) 1:6 (1 cement: 6 coarse sand) 6 finishing walls with water proofing cement paint of required shade : a) new work (two or more coats applied @ 3.84 kg/10 sqm). 7 demolishing cement concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of engineer - in - charge. a) nominal concrete 1:3:6 or richer mix (i/c equivalent design mix) 8 extra for cutting reinforcement bars manually/ by mechanical means in r.c.c. or r.b. work (payment shall be made on the cross sectional area of r.c.c. or r.b. work) as per direction of engineer in-charge. 9 dismantling old plaster or skirting raking out joints and cleaning the surface for plaster including disposal of rubbish to the dumping ground within 50 metres lead. 10 providing and fixing g.i. pipes complete with g.i. fittings including trenching and refilling etc. : external work a) 50 mm dia. nominal bore 11 providing and fixing double scaffolding system (cup lock type) on the exterior side of building/structure, upto 25 metre height, above ground level, including additional rows of scaffolding in stepped manner as per requirement of site, made with 40mm dia m.s. tube, placed 1.5 metre centre to centre, horizontal & vertical tubes joint with cup & lock system with m.s. tubes, m.s. tube challis, m.s. clamps and staircase system in the scaffolding for working platform etc. and maintaining it in a serviceable condition for execution of work of cleaning and/ or pointing and/ or applying chemical and removing it thereafter.the scaffolding system shall be stiffened with bracings, runners, connecting with the building etc, wherever required, if feasible, for inspection of work at required locations with essential safety features for the workmen etc., complete as per directions and approval of engineer-in-charge.note :- (1) the elevational area of the scaffolding shall be measured for payment purpose. (2) the payment will be made once only for execution of all items for such works. 12 chipping of unsound/weak concrete material from slabs, beams, columns etc. with manual chisel and/ or by standard power driven percussion type or of approved make including tapering of all edges, making square shoulders of cavities including cleaning the exposed concrete surface and reinforcement with wire brushes etc. and disposal of debris for all lead and lifts all complete as per direction of engineer-in-charge a) 50 mm average thickness 13 providing, mixing and applying bonding coat of approved adhesive on chipped portion of rcc as per specifications and direction of engineer-in-charge complete in all respect. a) sbr polymer (@10% of cement weight) modified cementitious bond coat @ 2.2 kg cement per sqm of surface area mixed with specified proportion of approved polymer 14 providing, mixing and applying sbr polymer (of approved make) modified cement mortar in proportion of 1:4 (1 cement: 4 graded coarse sand with polymer minimum 2% by wt. of cement used) as per specifications and directions of engineer-in-charge.note: measurement and payment: the pre-measurement of thickness shall be done just after the surface preparation is completed and payment under this item shall be made only after proper wet curing has been done and surface has been satisfactorily evaluated by sounding / tapping with a blunt metal instrument and/or the 75mm size cube crushing strength at the end of 28 days to be not less than 30 n/sqmm2). a) 25 mm average thickness in 2 layers. 15 providing and fixing hard drawn steel wire fabric of size 75 x25 mm mesh or other suitable size wire mesh to be fixed & firmly anchored to the concrete surface by means of l shaped mild steel shear key welded with existing reinforcement including the cost of materials, labour, tool & plants as approved by engineer-in-charge. 16 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 loads including all lifts involved.