COMPREHENSIVE MAINTENANCE INCULDING PAINTING, JOINERY, ANTI CORROSIVE PAINT ON STEEL SURFACE ETC IN SUBSTATION BUILDINGS, CHILLED WATER PLANT AND PIER-2 AND PIER-5 UNDER GE (SB) KARWAR

Racking out old existing sealant compound and back-up rod from construction joints by special tools/blades/machines, widening joint by 2 mm with joint cutting blade to obtain straight, smooth edges; cleaning joint with compressed air/vacuum to make it dry and free from dirt, oil, vegetation and debris; applying two coats of primer with brush by forward/backward strokes at 30 min interval; providing and inserting closed cell, medium density, cross-linked polyethylene foam back-up rod 12 mm dia for full length and filling with polyurethane joint sealant conforming to BS 5212 / BS 4254 / EN 141875:2003 with minimum MAF ±30%, complete all as specified and directed.

Racking out old existing sealant compound, back-up rod and filler board from expansion joints by special tools/blades/machines, widening joint by 2 mm with joint cutting blade to obtain straight, smooth edges; cleaning joint with compressed air/vacuum to make it dry and free from dirt, oil, vegetation and debris; applying two coats of primer at 30 min interval; providing and placing pre-moulded 25 mm thick compressible closed-cell polyethylene filler board; providing and inserting closed cell, medium density, cross-linked polyethylene foam back-up rod 30 mm dia for full length; finally filling with polyurethane joint sealant conforming to BS 5212 / BS 4254 / EN 141875:2003 with minimum MAF ±30%, complete all as specified and directed.

Demolition of cement concrete of any description and in any position, complete all as specified and directed.

M&L for formwork to soffits of suspended slabs such as roof slabs, floor slabs, landings and similar work, not exceeding 250 mm thick (horizontal or sloping), rough finished surface of concrete, complete all as specified and directed.

Supplying and laying 400 micron thick HDPE sheet (virgin quality), waterproof, wrinkle-free and free from punctures, having minimum weight 390 g/sqm, over tack coat/sand cushion as specified, with overlap between adjacent strips and transverse joints minimum 300 mm, complete all as specified and directed.

M&L for cement concrete work in pavement/ hardstanding of flexural strength 40 kg/sqcm in field, using minimum 400 kg of cement per cum, laid in alternate panels, complete all as specified and directed.

M&L for finishing surface of concrete roads/ pavements by brooming, complete all as specified and directed.

Preparation of cracked top surface of concrete slab on runway by wire brushing (manual/mechanical with diamond blade as required) and cleaning with air compressor to remove loose dirt, dust, scaling, grease etc., complete all as specified and directed.

M&L for applying primer NG CHEM 121 or equivalent on cleaned existing surfaces, complete all as specified and directed.

Applying Den Mort / NG Mort or equivalent trowelling compound on primed surfaces in thickness 2 mm to 5 mm, including filling small holes up to 10 mm depth and levelling to match existing surface level of runway/taxi track etc., complete all as specified and directed.

M&L for preparation of new or previously treated concrete surface to receive painting of lines/dashes/arrows/letters etc. exceeding 10 cm width, and applying two coats of approved water-based road marking paint (white/golden yellow/deep orange/black/grey as required) by spray/air compressor, complete all as specified and directed.

M&L for preparation of new or previously treated concrete surface to receive painting of lines/dashes/arrows/letters etc. not exceeding 10 cm width, and applying two coats of approved water-based road marking paint (white/golden yellow/deep orange/black/grey as required) by spray/air compressor, complete all as specified and directed.

M&L for hardcore, gauge not exceeding 63 mm, deposited, spread and levelled in layers not exceeding 15 cm thick, watered and rammed to a true surface, complete all as specified and directed.

M&L for PCC 1:4:8 type D-2 using 40mm graded stone aggregate in foundations/ filling/ mass concrete, complete all as specified and directed.

Demolition of stone slabs/tiles of any description or thickness in floors/aprons etc., laid, bedded and pointed in any mortar, complete all as specified and directed.

M&L for machine pressed precast cement concrete interlocking coloured paver blocks of any size/shape conforming to IS 15658:2006, 80 mm thick, M-40 grade, using grey cement and pigment, complete all as specified and directed.

M&L for stone dust/sand base filling in floors/pavings, laid in layers not exceeding 15 cm thick, spread, levelled, blinded and rammed including watering, complete all as specified and directed.

Applying Den Mort / NG Mort or equivalent trowelling compound on primed surfaces in thickness 2 mm to 5 mm, including filling small holes up to 10 mm depth and levelling to match existing surface level, complete all as specified and directed.

S&F in repairs stop valve/angle valve, cast copper alloy fancy type, chromium plated, screwed down high pressure, with crutch/butterfly handle, screwed both ends, for 15 mm bore iron pipe, complete all as specified and directed.

S&F in repairs stop valve, cast copper alloy fancy type, chromium plated, concealed type with long shank and cup, for 15 mm bore iron pipe, complete all as specified and directed.

S&F in repairs vitreous china wash-down water closet (pedestal pattern), white, including fixing bolts and necessary connections to existing pipes, complete all as specified and directed. Note: Cost of flush pipe, cistern and seat cover excluded and shall be paid separately under relevant items.

S&F in repairs seat cover for pedestal pan, plastic water closet seat, white, closed pattern with flat bottom and cover, with MS chromium plated/aluminised hinging device, complete all as specified and directed.

S&F in repairs 10 litre capacity PVC valveless syphonic action flushing cistern, high or low level (exclusive of brackets), white, including inlet ball valve, float and handle, including brackets, complete all as specified and directed.

S&F in repairs PVC connection 15 mm dia, 450 mm long, complete all as specified and directed.

S&F in repairs PVC flush pipe 32 mm dia for low level flushing cistern to pedestal pan, including joints, cones and India rubber nozzle(s) of WC pan, complete all as specified and directed.

S&F in repairs brass chromium plated health faucet with spring pipe and required nipple, complete all as specified and directed.

Taking down chowkats/frames exceeding 1.5 sq m but not exceeding 4.0 sq m each, with shutter (without taking off shutter from frame), including making good disturbed portions to match adjoining surfaces, complete all as specified and directed.

Taking down only shutters of any description exceeding 1.0 sq m but not exceeding 2.0 sq m each, complete all as specified and directed.

S&F factory made uPVC door frame made of uPVC extruded sections, overall size 48×40 mm (±1 mm), wall thickness 2.0 mm (±0.2 mm); corners jointed with galvanised brackets and stainless steel screws, joints mitred and plastic welded; hinge side vertical reinforced with galvanised MS tube 19×19 mm, 1.0 mm (±0.1 mm); complete with 3 Nos stainless steel hinges, fixed to wall/opening as per manufacturer’s instructions, complete all as specified and directed.

S&F factory made uPVC white colour openable casement door of extruded profile with wall thickness 2.3 mm (±0.2 mm), multi-chamber sections with frame/sash/T-profile as specified, glazing bead mitred and fusion welded, provision for hardware and drainage, EPDM gasket 1.2 mm (±0.2 mm), galvanised steel reinforcement as specified; fixed to wall with 8 mm × 100 mm long fasteners; complete with hardware (multi-point locking system etc.) as specified; including all connected accessories except glass; net opening measured for payment, complete all as specified and directed.

S&F factory made uPVC white colour fixed window of extruded profile with wall thickness 2.3 mm (±0.2 mm), multi-chamber sections with frame/T-profile and glazing bead as specified, fusion welded corners, provision for drainage, EPDM gasket and galvanised steel reinforcement as specified; fixed to wall with 8 mm × 100 mm long fasteners; cost of glass excluded; Area not exceeding 1.00 sq m each; net opening measured for payment, complete all as specified and directed.

S&F 4.0 mm thick sheet glass, ordinary quality, and glazing with oil putty in squares not exceeding 0.5 sq m in each pane, fixed to aluminium windows/ventilators etc., complete all as specified and directed.

S&F in repairs 100 mm butt hinges, stainless steel, with mild steel hinge pin, bright polished, fixed, type B-11, complete all as specified and directed.

S&F in repairs 4 levers mild steel mortice lock, vertical type, 100 mm size, complete all as specified and directed.

S&F in repairs aluminium (die-cast) body door closer, hydraulically regulated, designation No. 3, universal type, suitable for door shutters of 851–1000 mm width and of weight between 61–80 kg, complete all as specified and directed.

M&L for preparation of old treated steel surfaces of any description, over 10 cm in width or girth, not otherwise described, and applying one coat synthetic enamel paint, complete all as specified and directed.

M&L for framed work such as grills, gratings, sunshades etc., with ends of bars shouldered and/or riveted or welded, or forged into spikes, including framed guard bars, barred iron doors, ladders, framed balusters, walkways, railings, frame work of water tanks and similar work, conforming to Fe-290 (Gde E-165), complete all as specified and directed.

M&L for PCC 1:2:4 type B-1 using 20mm graded stone aggregate as in kerbing all around tile etc., complete all as specified and directed.

Demolition of reinforced cement concrete of any description and in any position, complete all as specified and directed.

M&L for reinforced cement concrete (nominal mix 1:2:4) type B-1 using 20 mm graded stone aggregate in slabs supported on walls/beams etc., complete all as specified and directed.

M&L for mild steel TMT bars 10 mm dia and over, cut to length, bent to shape required, including cranking, bending etc., and binding with annealed MS wire not less than 0.9 mm dia or securing with clips, complete all as specified and directed.

M&L for mild steel TMT bars 6 mm to 8 mm dia, cut to length, bent to shape required, including cranking, bending etc., and binding with annealed MS wire not less than 0.9 mm dia or securing with clips, complete all as specified and directed.

Forming contraction (dummy) joints 65 mm deep × 10 mm wide, and filling with sealing compound Grade ‘A’, complete all as specified and directed.

Forming construction joints 30 mm deep × 10 mm wide, and filling with sealing compound Grade ‘A’, complete all as specified and directed.

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