SPL REPAIR TO 1ST AND 2ND FLOOR BLDG NO OTM - 08 (SINGLE OR LIVING) AT 2 CBPO UNDER GE (N) KOLKATA

Amount

Taking down/ dismantling loose/ damaged concrete including plaster of any description and in any position from RCC structures like chajja, fins, roof ceiling,louvers, parapet, column, beam, and of lintel by hammering with wooden mallets carefully chipping off the old concrete surface with necessary scaffolding including cutting of rusted reinforcement if so required and disposal of debris outside the premises complete all as specified and directed.

M&L for cleaning the existing surface of concrete and reinforcements as obtained after execution of item No. 01 above by wire brush including scrapping & cleaning with emery paper or by air blasting or sand blasting including foreign materials, loose concrete/ aggregates etc and washing down with water as required complete all as specified and directed.

Material and labour for 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 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 directed.

Material and labour for TMT bar upto 10mm dia as in stirrups cut to length bent to shape required including cranking, bending etc. and lapping, welding as directed to the existing one complete all as specified and directed.

M&L for removing of concrete all around reinforcement including from behind the reinforcing bars to give an average 25mm (but not less than 15mm clear air gap) by manual methods (using wire brushing, chiselling etc) and applying alkaline rust removing chemical followed by removing rust including from behind the reinforcing bars by emery paper and cleaning the area throughly by water and allowing it to dry all as per manufacturers instruction to give it a totally rust free finished steel surface complete all as specified and directed by Engr-in-charge upto 12 mm dia bar complete all as specified and directed.

M&L for removing of concrete all around reinforcement including from behind the reinforcing bars to give an average 25mm (but not less than 15mm clear air gap) by manual methods (using wire brushing, chiselling etc.) and applying alkaline rust removing chemical followed by removing rust including from behind the reinforcing bars by emery paper and cleaning the area throughly by water and allow it to dry all as per manufacturers instruction to give it a totally rust free finished steel surface complete all as specified and directed by Engr-in-charge above 12 mm dia bar complete all as specified and directed.

M&L for providing single coat of epoxy bond adhesive of prepared non metallic surface (existing surface) and applying by brush all as per manufactures instruction/ specification. The bonding agent shall have minimum compressive strength of 40 N/ sq mm and complete all as specified and directed. ( Make : SIKA/ FOSROC or any other equivalent as approved by GE )

Supply and application of Epoxy Zinc rich primer on the prepared steel surface by brush the primer shall have a minimium specific gravity 1.75 minimum weight film thickness/ coat 40 microns and minimum adhesive bond strength with steel is 1.5 N/mm2 complete all as specified and directed. ( Make : SIKA/ FOSROC or any other equivalent as approved by GE )

M & L for providing and placing in position free flow non shrink cementitious micro concrete of Grade of M-50 to the effected beam, column etc . The micro concrete shall have a minimium 1 day compressive strength of 10 Mpa and 28 days strength of 50 Mpa, minium tensile strength 5N/mm2 @ 28 days, minimium flextural strength 5N/mm2 @ 28days complete all as specified and directed. ( Make : SIKA/FOSROC or any other equivalent as approved by GE )

Supply, mixing and application of two component structural grade polymer modified reinstatement mortar, where local spalling has taken place or shuttering is not possible . The mortar can be applied in layers not exceeding 6mm thick in each layer in and upto any thickness in smaller vertical pockets and upto any thickness in horizontal applications. The mortar should have a minimium compressive strength 12N/mm2 in 1 day and 45N/mm2 in 28 days. Minimum flexural strength should be 8 N/mm2 in 28 days. A modified styrene butadience emulsion for use as a bonding aid and gauging liquid for cementious system to be mixed with cement slurry before the application of modified polymer mortar to be used @ 6 ltr/bag of cement. The bonding agent should have minimium compressive strength 24N/mm2. Minimum tensile strength 3.5N/mm2, minimium flexural strength 6.5N/mm2 complete all as spd and directed by the Engr-in-charge upto 25 mm average thickness complete all as specified and directed. ( Make : SIKA/FOSROC or any other equivalent as approved by GE )

M&l for use and waste of formwork to sides of pillars, posts, struts, piers, columns and stanchions for rough finished concrete surfaces complete all as specified and directed.

M&L for use and waste of formwork to sides of sides and soffits of beams, lintels, floors etc. for rough finished concrete surfaces complete all as specified and directed.

M&L for use and waste of formwork to fins, facia, louvers. parapet, chajja etc for rough finished concrete surfaces complete all as specified and directed

Material and labour for 5 mm thick plastering in CM (1:3) on concrete surfaces as in sides of column, lintel, beam, chajja, facia, railing, RCC wardrobe etc including finishing the surface even and fair without using extra cement complete all as specified and directed.

Taking out 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.

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 directed.

Material and labour for glazed ceramic colour tiles 350x 250x 7mm/ 450X 350X 7mm 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 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 directed. Note :- WPC shall be measured and paid separately.

Supply only integral water proofing liquid admixture for concrete complete all as specified and directed. (Make : CONPLAST X4211C of FOSROC/PLASTOCRETE PLUS of SIKA or 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 directed.

Material and labour for rendering 5mm thick in cement mortar (1:3) on concrete surfaces in ceiling and finished the surface even and smooth without using extra cement complete all as specified and directed.

Material and labour for preparation of newly plastred surfaces of wall by vaccume based sanding machine, and applying two coats of Anti Fungal paint white or coloured by Auto Roller over a coat of primer, including necessaryscaffoldings complete all as specified and as directed and as per manufacturers instructions.

Material and labour for complete removal of existing treatment from old decorated plastered surfaces of wall by Vaccum based sanding machine, removal of nails etc & filling cracks/hole with putty, and applying two coats of Anti Fungal paint white or coloured by Auto Roller over a coat of primer, including necessary scffoldings complete all as specified and as directed as per manufacturers instructions.

M&L for complete removal of existing treatment of wall including washing, rubbing down and stopping of old treatement and material and labour for applying 1.00mm thik wall care putty and applying two coats of oil bound distemper over a coat of alkali resistant primer to wall complete all as specified and as directed.

M&L for applying 1.0mm thick wall care putty and applying 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.

All as per item No. 27 above but in ceiling complete all as specified and directed.

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

All as per item No. 29 above but 20mm dia complete all as specified and directed.

Supply and fix 15mm bore unplasticised PVC pipes of pressure rating 10 kgf/cm sq fixed to walls, ceiling or in floors etc complete all as specified and directed.

All as per item No 31 above but 20 mm outer dia complete all as specified and directed.

Supply and fix in repair stop cock concealed type of 15mm bore fancy type, chromium plated with long shank and cup cast copper alloy, screwed down, high pressure, with crutch handle, screwed both ends for brass ferrule complete all as specified and 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 10 litre capacity PVC valve less, symphonic action type, flushing cistern, low level, white, with inlet, ball valve, float and handle including brackets and flush pipe of polyethylene of low or high density or PVC. 32 mm dia, for low level cistern including PVC connections 15mm size with PTMT nuts and washer both side of length 450mm complete all as specified and directed.

Supply and fix in repair vitreous China squatting pan, ‘Orissa’ pattern, size 580 x 440 mm white, with integral foot rests including 'P'or 'S' trap (excluding flushing cistern and flush pipe) including provision of lime concrete bedding complete all as specified and directed.

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 directed.

Supply and fix in repair brass chromium plated shower rose of 125mm size fixed including 15 mm dia CP arm all as specified and directed.

Supply and fix in repair chromium plated towel rail of 20 mm dia, D type, 600mm long between flanges fixed with chromium plated brass screws and wooden/plastic cleats complete all as specified and directed.

Supply and fix in repairs grating doom 125mm dia of PTMT (Minimum wt 25 Gms) complete all as specified and directed.

Supply and fix health faucet (ABS body) with 8mm dia 1 meter long flexible tube and wall hook for fixing in 15 mm dia pipe complete all as specified and directed.

Supply and fix chromium plated two ways bib cock with wall flange for fixing in 15 mm dia pipe complete all as specified and 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 directed.

Dismantling cast iron drain pipes of any dia, jointed in cement mortar obtained either from trenches/ wall as required complete all as specified and as directed. (Note : Excavation if required, shall be measured and paid separately)

Supply and fix 100mm bore cast iron (Sand cast pipes) soil, waste and vent pipes in any length with or without ears, with cement joints, fixed to wall with MS clamp complete all as specified and directed.

Supply and fix 100mm bore cast iron (Sand cast pipes) soil, waste and vent pipes in any length with or without ears, with cement joints, laid in trenches or in floors complete all as specified and directed.

Supply and fix 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 clip and including taking down existing rain water pipes complete all as specified and directed.

Supply and fix PVC bend/ shoe 110mm dia complete all as specified and directed.

Supply and fix 100mm bore cast iron bends (any radius), diminishing pieces or tapers (larger bore measured) complete all as specified and directed.

Supply and fix 100mm bore cast iron branch pieces, single (equal or unequal), ordinary or inverted (spigot or socket type) or with parallel branches complete all as specified and directed.

Supply and fix 100mm bore cast iron cowls complete all as specified and 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 directed.

Taking down chowkahts or frames with shutters (without taking off shutters from the frame) not exceeding 1.5 Sqm each complete all as specified and directed.

All as per item No. 54 above but exceeding 1.5 Sqm but not exceeding 4 Sqm each complete all as specified and directed.

Taking down shutters of any description exceeding 1 Sqm but not exc 2sqm each complete all as specified and directed.

Supply and fix 2nd class hard wood , plain, solid , straight chowkats and frames, wrought, framed, rebated on the solid rounded or chamfered put together with glue pinned at joints complete all as specified and directed.

Material and labour for treating ends of posts, backs of chowkats, etc., with tar or coal tar black paint area tarred exc 0.1 sq. m but n exc 0.5 sq. m each complete all as specified and directed.

Supply and fix 35mm thick 2nd class hard wood factory made plain framed panelled door shutters, (two panel) with lock rail and panel of 12mm veneered particle board with commercial veneered on both faces and rail and stiles as per IS 1003 (Pt-I), kiln seasoned and chemically pressure treated etc.complete all as specified and directed.

Supply and fix 35mm thick 2nd class hard wood factory made glazed and skeleton door shutters, open rebated and prepared to received glass/gauge etc (without sash bars) edges of framing plain, chamfered or rounded and mitred , beads for securing glass etc the size of member of shutter as specified in SSR Part-I, clause 8.24 (a) complete all as specified and directed.

Supply and fix solid PVC door frame of size 50mm x 47mm made out of 5mm plain colour PVC sheet reinforced with M.S. Square tube with EPDM gasket as per specification and drawing complete all as specified and directed.

Supply and fix factory made solid panel PVC door shutter 30 mm thick (style) consisting of frame made out of M.S. tubes for top & bottom rails. M.S. frame shall be covered with heat moulded plain colour PVC ‘C’ channel having a PVC sheet strip of 20mm width stuck inside with solvent cement for stiles and plain colour PVC sheets for top rail, lock rail & bottom rail on either side & as gap insert for top rail & bottom rail; panelling of plain colour PVC sheet to be fitted in the M.S. frame welded / sealed to the stiles & rails with suitable PVC sheet beading, and joined together with solvent cement, as per specification and drawing complete all as specified and 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 sliding powder coated anodised aluminium window shutters for gauged/ gauged, aluminium section weighing 0.55kg/m including necessary joining cleats, roller rubber neoprene packing/ gasket,etc complete all as specified and directed. (Note- Glass shall be measured and paid separately)

Supply and fix powder coated anodised aluminium glass louver/ ventilators with blades of 10mm heavy duty with lever handle etc complete all as specified and directed. (Note- Glass shall be measured and paid separately)

Supply and fix 4mm thick sheet glass ordinary quality, glazing with oil putty in square not exceeding 0.5 Sqm in each pane fixed to aluminium frame complete all as specified and directed.

Supply and fix 4mm thick frosted glass ordinary quality, glazing with oil putty in square not exceeding 0.5 Sqm in each pane fixed to wooden frame complete all as specified and 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 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 directed.

Material and labour for PCC (1:3:6) type C1 (using 20mm graded stone aggregates) for fixing of hold fasts block and similar work including necessary formwork complete all as specified and directed.

Supply and fix mild steel work as in hold fast or similar article conforming to Fe-410-0 or Fe-310-0 including tarring and sanding complete all as specified and directed.

Supply and fix 150mm floor door stopper of aluminium alloy body and tongue, anodised with hard drawn steel spring fixed to door complete all as specified and directed.

Supply and fix 100 mm size butt hinges, medium weight, stainless steel and fixed complete all as specified and directed.

Supply and fix 300mm long aluminium alloy, anodised, sliding door bolt with hasp, staple (bolt type) and fixing clips of sheet, cast or extruded sections and fixing bolts and sliding bolts of extruded sections or cast-aluminium alloy complete all as specified and directed.

Supply and fix 150mm long aluminium anodised, barrel tower bolts of extruded section and fixed complete all as specified and directed.

Supply and fix 150mm size extruded aluminum alloy handle fabricated type anodized (ISI Marked) complete all as specified and directed.

S&F in repair decorative/ fancy type curtain rods of not length not exceeding 1.50 m of aluminium/ brass alloy suitable of 25 mm dia alongwith fancy brackets and necy fixtures complete all as specified and directed.

Material and labour for two coats of synthetic enamel paint over a coat of pink primer to new wooden surfaces of any description over 10cm width or girth including preparation of new surfaces complete all as specified and directed.

Material and labour for one coat of synthetic enamel paint on wooden surfaces of any description over 10cm width or girth including preparation of old surfaces complete all as specified and directed.

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

Supply and fix in repair 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; barred iron doors; ladders; framed balusters; walk ways; railings; framework of water tanks and similar work complete all as specified and 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 directed.

Material and labour for applying one coat of synthetic enamal paint on steel surface of any description over 10cm widht or girth including preparation of old steel surfaces complete all as specified and directed.

Supply and fix in repair rotational moulded polyethylene water storage tanks (multi layered) 1000 Ltrs capacity (cylindrical vertical with closed top) hoisted and fixed in position complete all as specified and directed.

RBS Builders (BID ID -3482721)

MOTHER LUMIER INDUSTRIES (BID ID -3483426)

MAZUMDER & CO (BID ID -3480717)

KAY BEE ASSOCIATES (BID ID -3484510)

BHARUKA ENTERPRISES (BID ID -3482316)

RADHA ENTERPRISE (BID ID -3482706)

RUNJEN CONSTRUCTION (BID ID -3485360)

S Majumder and Construction (BID ID -3485260)