REPAIRS AND MAINTENANCE OF EXTERNAL B/R NATURE WORK, PLASTER, PLINTH PROTECTION, ROOF TREATMENT, PLUMBING WORKS, SARINATY FITTINGS AT 17 CORPS OMC UNDER GE (NORTH) KOLKATA

Amount

Taking up or down 15mm dia steel tubing and connections, segregating serviceable pipe for reuse complete all as specified and as directed.

All as per item No. 01 above but 20mm dia complete all as specified and as directed.

All as per item No. 01 above but 25mm dia complete all as specified and as directed.

Supply and fix 15mm bore medium grade galvanized steel tubes with all fittings and fixed to wall or in floors etc complete all as specified and as directed.

All as per item No. 04 above but 20mm dia complete all as specified and as directed.

All as per item No. 04 above but 25mm dia complete all as specified and as directed.

All as per item No. 04 above but fixing only complete all as specified and as directed. Note: Serviceable GI pipe obtained from item No.01 above shall be reused after cleaning.

All as per item No. 05 above but fixing only complete all as specified and as directed. Note: Serviceable GI pipe obtained from item No.02 above shall be reused after cleaning.

All as per item No. 06 above but fixing only complete all as specified and as directed. Note: Serviceable GI pipe obtained from item No. 03 above shall be reused after cleaning.

Taking down old unservicebale steel window/ ventilators frame with shutter of any description complete all as specified and directed.

Supply and fix steel windows with side hung double shutters (both glazed and gauged shutters) in single frame including box type hinges with steel handle, and steel peg stay, complete with glazing bars for glazed shutter, dovetailed or welded including taking down old rusted unserviceable steel window with glass panes/wire mesh/grill/guard bar and all fittings complete all as specified and as directed.

Supply and fix steel windows with side hung shutters including box type hinges with steel handle and steel peg stay complete with glazing bars, flush butt welded etc including taking down old windows with glass panes, grill/guard bar etc and all fittings complete all as specified and as directed.

Supply and fix rolled mild steel Fe-410-w (grade E-250) quality A framed work such as grills, gratings, etc. with ends of bars shouldered and/or riveted, or forged into spikes; framed guard bars and similar work complete all as specified and as directed.

Supply and fix 3mm thick sheet glass, ordinary quality and glazing each pane fixed to steel frame(fixed with oil putty and clips)/wooden frame(fixed with Iind cl hard wood beads) including hacking out old broken glass from metal frmae/wooden frame complete all as specified and as directed.

Supply and fix 3mm thick frosted glass, ordinary quality and glazing in each pane fixed to steel frame(fixed with oil putty and clips)/wooden frame(fixed with Iind cl hard wood beads) including hacking out old broken glass from metal frmae/wooden frame complete all as specified and as directed.

Supply and fix stainless steel wire cloth of 0.36 mm nominal dia of wire and averaging of width of aperture 1.40mm, fixed with stainless steel wire staples complete all as specified and as directed.

Supply and fix in repairs stainless steel wire cloth of 0.36 mm nominal dia of wire and averaging of width of aperture 1.40mm, fixed with stainless steel wire staples complete all as specified and as directed.

Material and labour for two coats of synthetic enamel paint over a coat of red oxide zinc chrome primer to new steel surface including preparation of surfaces exceeding 10cm with or girth complete all as specified and as directed.

Supply and fix powder coated aluminium frame for doors, windows, ventilators(including 2/3 track) with one or more rebates including joining cleat for fixing etc complete all as specified and directed.

Supply and fix 4mm thick sheet glass ordinary quality, glazing with aluminium beads in square/rectangular exceeding 0.5 Sqm in each pane fixed to aluminium frame complete all as specified and as directed.

Supply and fix in repair bib taps of 15mm bore fancy type, chromium plated cast copper alloy, screwed down, high pressure, with crutch or butterfly handle, screwed both ends for iron pipe or for brass ferrule all complete as specified and as directed.

Supply and fix in repair angular stop cock of 15mm bore fancy type, chromium plated cast copper alloy, screwed down, high pressure, with crutch handle, screwed both ends for brass ferrule complete all as specified and as directed

Supply and fix in repair pillar cock of 15mm bore, cast copper alloy with capstan heads fancy type, chromium plated screwed down, high pressure, with long screwed shanks and fly-nuts, screwed for iron pipe and fixed complete all as specified and as directed

Supply and fix in repair 15mm dia Stop valve of PTMT any colour high pressure screwed for iron pipe and fixed (Minimum weight 90gms) complete all as specified and as directed.

Supply and fix in repair 15mm bore Bib tap (Minimum weight 90gms) standard of PTMT any colour high pressure screwed for iron pipe complete all as specified and as directed.

Supply and fix tin repair chromium plated mixer with connecting legs for fixing in 15mm dia pipes over wash basin complete all as specified and as directed.

Supply and fix in repairs stainless steel sink with drainage board made out of 1.00 mm thick sheet for kitchen with plug washers, waste pipe including bedding in cement mortar on dwarf wall or including cast iron cantiliver brackets connecting union overall size 915 X 460 mm with bowl size 405x355x178mm or 410x357x178mm complete all as specified and as directed. (Model No.BSSBSD-52 of Blue Star/SBSD 05 of Joyna/ Equivalent brand of Prayag).

Supply and fix in repairs vitreous China wash basin white flat back, size 630 x 400 mm including PTMT waste coupling 32mm dia (min wt 45 gm), 15mm bore PTMT pillar tap,chain and plug and porcelain stopper etc. complete all as specified and as directed.

Supply and fix in repairs PVC connection 15mm size with PTMT nuts of length 600 complete all as specified and as directed.

S & F in repairs Rotational moulded polyethylene water storage tanks (cylinderical vertical with closed top) 1000 Ltr Capacity, hoisted and fixed in position all as specified including dismantling existing water tank complete all as specified and directed.

All as per item No. 30 above but 500 Ltr capacity complete all as specified and directed.

Supply and fix in repairs 20mm bore Ball valves high pressure of PTMT with epoxy coated aluminium rod and high density plastic ball screwed for iron pipe complete all as specified and as directed.

Supply and fixing in repair gun-metal, globe or gate valves size 20 mm dia, with iron wheel head, screwed both ends for iron pipe and fixed complete all as specified and as directed.

Supply and fix in repair 100mm cast iron Nahani trap, with grating including jointing to waste pipe fixed in cement concrete 1:2:4 type B1 complete all as specified and as directed.

Dismantling of old unserviceable floor, hearth or wall tiling including cement mortar bedding (but not backing and rubbish off the premises complete all as specified and as directed.

Roughening surfaces of old concrete floor by picking, sweeping, cleaning and washing down with water to remove dust etc. complete all as specified and directed.

Material and labour for Light shade Vitrified tiles 10mm thick (square/rectangular) polished, area of each tiles exc. 0.18 sqm but n.exc. 0.36 sqm in floors etc set and jointed in neat cement slurry and pointed in white or coloured cement to match the colour tiles over and including 20mm thick screed bed or bedding layer in CM(1:6) complete all as specified and as directed.

Material and labour for Light shade Vitrified tiles 10mm thick (square/rectangular) polished, area of each tiles exc. 0.18 sqm but n.exc. 0.36 sqm in skirting etc set and jointed in neat cement slurry and pointed in white or coloured cement to match the colour tiles over and including 10mm thick rendering in CM (1:4) complete all as specified and as directed.

Material and labour for Non-skid ceramic coloured tiles 7 to 8 mm thick (square/rectangular) area of each tile exceeding 0.11 sqm but n.exc. 0.18 sqm as in floors etc set and jointed in neat cement slurry and pointed in white or coloured cement to match the colour of tiles over and including 15mm thick screed bed or bedding layer in CM(1:6) complete all as specified and as directed.

Material and labour for glazed ceramic colour tiles (300x200) x7/(350X250)X7mm&(450X350)X7mm thick in skirting/dados etc set and jointed in neat cement slurry and pointed in white or coloured cement to match the colour tiles over and including 10mm thick rendering in CM(1:4) complete all as specified and as directed.

Demolition of cement concrete in ground floors and pavings n.exc. 15 cm thickness below or above ground level complete all as specified and as directed.

Material and labour for 75mm thick PCC type D2 (1:4:8) using 40mm graded stone aggragate as in , sub base of floors etc complete all as specified and as directed.

Material and labour for (300x300) x25 mm thick PCC designer Pre-polished tiles (Factory make and approved size) as in floors, set & jointed in neat cement slurry and pointed in coloured cement with pigment over and including 20mm thick screed bed or bedding layer in CM(1:6) complete all as specified and as directed.

Demolition of brickwork built in cement mortar including all quoins, arches, pillars etc. complete all as specified and as directed.

Material and labour for brick work with bricks class designation 75, old size, straight or curved on plan exc 6m mean radius built in cement mortar (1:6) complete all as specified and as directed.

Material and labour for brick work with bricks class designation 75, old size, straight or curved on plan to any radius in half brick thick walls built in cement mortar (1:4) complete all as specified and as directed.

Taking down cement plaster of any description on brick walls including raking out joints, hacking for key, scrubbing down with water complete all as specified and directed.

Material and labour for 20mm thick plaster in cement mortar (1:4) in two layers, i.e 10mm thick in each layer, top layer mixed with integral water proofing liquid admixture as per manufacturers instruction on brick or concrete surfaces of wall finished the surface fair and even complete all as specified and as directed. Note :- WPC shall be measured and paid separately.

M&L for 5mm thick plastering in CM(1:3) on concrete surfaces as in sides of column, lintel, beams, chajja, facia, railing, RCC wardrobe etc including finishing the surface even and smooth w/o using extra cement complete all as specified and directed.

Supply only integral water proofing liquid admixture for concrete and mortar complete all as specified and directed. (Make :CONPLAST X421IC of Fosroc /SIKA No 1 of SIKA/equivalent brand of PIDILITE)

Material and labour for rendering 15mm thick in cement mortar (1:6) on fair faces of brickwork or concrete surfaces, finished the surface even and smooth without using extra cement complete all as specified and as directed.

M&L for applying 1.50mm thick wall care putty and appling two coats of oil bound distemper over a coat of alkali resistant primer to wall to new plaster surface complete all as specified and as directed.

Material and labour for preparation of new plastered surfaces of wall and applying two coats of cement base paint over a coat of cement primer complete all as specified and as directed.

Material and labour for preparation of new plastered surfaces of wall and applying three coats of white wash complete all as specified and as directed.

Material and labour for 40mm thick PCC (1:2:4) type B1 using 20mm graded aggregate as in floors complete all as specified and as directed.

Materials and labour for 75mm thick PCC (1:3:6) type C2 (using 40 mm graded stone aggregate) as in pavement/plinth protection , laid in bays and joints shall be filled up with bituminous gola with 80/25 bitumen ( 1 part of bitumen to be mixed with 3 part of sand and finished the surface fair and even complete all as specified & directed.

S&F in repairs PVC (SWR) pipe 110mm bore, type A, single socketed, in any length with rubber ring joints fixed to walls with and including PVC clips complete all as specified and directed.

S&F PVC (SWR) bend/ shoe 110mm bore complete all as specifed and directed.

Dismantling wrought iron for mild steel work for any description not otherwise provided for complete all as specified and directed.

Supply and fix steel work in tubular trusses including special shaped washer etc. complete using ERW or induction butt welded tubes conforming to IS-1161-1979 grade St-240 complete all as specified and as directed.

Dismantling Asbestos cement / Transluscent ( Corrugated , semicorrugated etc.) sheets as in Roof covering , wall , ridge , hips valleys and flashings etc for the building structures not exceeding 10 m height from the average ground level complete all as specified and as directed .

Supply and fix pre- painted galvalume aluminum zinc coating GI based corrugated steel sheet 0.50mm thick of an colour having tensile strength of 550 Mpa as in roof covering/cladding to wall, fixed with self tapping screws as specifiedcomplete all as specified and as directed.

Supply and fix pre- painted galvalume aluminum zinc coating GI based plain steel sheet 0.50mm thick of an colour having tensile strength of 550 Mpa as in roof covering/cladding to wall, fixed with self tapping screws as specifiedcomplete all as specified and as directed.

Demolition of reinforced cement concrete of roofs, floors , staircases, landing, chajjas and similar suspended works in ground floors beams(reinforcement cut as required to facilitate demolition) complete all as specified and directed.

M&L for Reinforced cement concrete (nominal mix) type A1 (1:1.5:3) ( using 20mm graded aggregate) as in Slabs supported on walls, beams and columns in floors,roofs, landings, balconies,canopies, deck slabs and in shelves and the like complete all as specified and directed.

M&L for reinforced cement concrete (nominal mix) type A1 (1:1.5:3) (using 20mm graded aggregate)as in chajja complete all as specified and directed.

Material and labour for mild steel TMT bars 10mm dia and over, cut to length, bent to shape required, including cranking, bending lapping etc as required and welding with existing bar complete all as specified and as directed.

Material and labour for TMT bars 6 to 8mm bar, cut to length, bent to shape required, including cranking, bending, lapping etc as required and welding with existing bar complete all as specified and as directed.

M&L for Formwork to soffits of concrete roof slabs and chajjas n exc 20cm wide complete all as specified and directed.

M&L for Formwork to edges of concrete roof slabs and chajjas n exc 20cm wide all as specified and directed.

M&L for kota stone slab 20-25 mm thick in riser of step, skirting, dado and pillar laid over cemnent screed bed laid and jointed with grey cement slurry mixed with pigment to match the shed of the slab including rubbing and mirror polishing on stone work where ever required to give high gloss finish complete all as specified and directed.

M&L for 20mm thick Granite(of any type)work(table rubbed and polished) in steps, jambs, pillars, window cills, cooking platforms etc over 15mm thick cement mortar(1:4) including pointing with white cement(1:2) using marble dust with admixture of pigment to match with shade of granite,complete all as specified and directed.

M&L for providing plain cement concrete (1:2:4), type B-2 (using 40mm graded stone aggregates) for foundation filling and mass concrete for securing/ fixing of post/ strut in under water including formwork and dewatering as required at site complete all as specified and directed.

Demolition of cement concrete of any description including any treatment there to and in any position provided as in roof padding, roof curb etc complete all as specified and as directed. Note: - (a) Demolition should be done carefully to roof slab. (b) Any damage occurred in the roof surfaces during demolition shall be made good by the contractor without extra cost to the department. (c) Disposal of old debris/retrieved material to outside the premises or as directed by the Engineer-in-Charge.

Material and labour for providing plain cement concrete (1:2:4) type B1 (using 20mm graded stone aggregate) as in roof padding laid in slope as per requirement mixed with integral water proofing liquid admixture as per manufacturer's instructions complete all as specified and as directed. Note : (i) Minimum thickness of PCC shall be 50mm. (ii) Integral water proofing liquid admixture shall be measured and paid separately under appropriate item here in after

Material and labour for water proofing treatment with APP based standard membrane over PCC padding in roof with the following courses of treatment :- (a) Apply bituminous primer (IS 3384) @ 0.40 Kg per sqm of the surface area including cleaning the surfaces complete all as specified and directed.. (MAKE : Pibial Primer of TEXSA or equivalent product of BITUMAT/ BITUNIL/SIKA) (b) Apply APP plastomeric bitumen based mineral finished water proofing membrane polyester reinforced(4 Kg/Sqm) with 10cm over laps and torch bonded at joints including surface preparation before and after application of treatment as per manufactures instruction complete all as specified. (Make of APP Membrane: Moply FP 4 Kg mineral of TEXA/WP Shield 103 PM of SIKA or Equivalent material of BITUNIL/BITUMAT. (Note :- Cost of cutting groove to parapet wall for inserting APP membrance and filling groove with cement mortar (1:3) is deemed to be included within the quoted rate.)

M/S SHEKHAR TRADING CORPORATION

MOTHER LUMIER INDUSTRIES

MAZUMDER & CO

RUNJEN CONSTRUCTION

RADHA ENTERPRISE

ELECTRO COMMERCIAL CO

RBS Builders