REPAIRS AND MAINTENANCE OF FOOTPATH PLINTH PROTECTION CHEQUERED TILES GATES AND OTHER MISC WORK AT 2 CBPO MC AND MF DET UNDER GE NORTH KOLKATA

Amount

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.

M&L for hardcore of gauge exc.63mm but not exc.100mm, deposited, spread and levelled in layers n.exc. 15cm thick, watered/well rammed to a true surface complete all as specified and directed.

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

M&L for chequered cement concrete tiles 30cm x 30cm x 25mm thick, over 20 mm thick screed bed or bedding layer of mortar in CM (1:6) for laying floor finishes set, jointed with grey cement and pigment and pointed in neat cement slurry in floors complete all as specified and directed.

M&L for sand filling under floors or in foundations including watering and consolidation complete all as specified and directed.

Material and labour for Machine pressed precast conctete interlocking paver block any shape and size confirming to IS 15658-2006 of 60 mm thickness, M-35 grade, with grey cement and pigments and laid over sand cushoning complete all as specified and as direded.

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.

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

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) 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.

Material and labour for 40mm thick PCC (1:2:4) type B1 (using 20mm graded aggregate) as in floors and finished the surface even & smooth without using extra cement complete all as specified and as directed.

Dismantling wall and ceiling board ( fibre, pulp, insulation etc.) or insulation boards/slabs/blankets, any thickness, including cover fillets etc. complete all as specified and directed.

Supply and fix Anodised aluminium snap grid frame work size of grid 605mmx605mm for false ceiling including GI hangers 6mm dia GI wire (upto 1200mm length) adjusting level fixed to roof slabs by means of ceiling cleats made out of GI flat 40x3mm size 60mm long and expansion hold fasteners 12.5mm dia 40mm long complete all as specified and as per manufacturers instruction complete all as specified and directed.

Supply and fix of 6mm thick high pressure steam cured non asbestos fibre cement designer ceiling board of size to suit grid mould (605 x 605mm as specified above) and fix in grid mould with necessary fixing arrangement as per manufacturer’s instruction 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 as directed. Note :- WPC shall be measured and paid separately.

Supply only integral water proofing liquid admixture for concrete and mortar complete all as specified and as 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.

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 as directed.

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

M&L for complete removal of existing treatment of old plastered surfaces of wall including washing, rubbing down and stopping of old treatment and applying 1.50mm thick wall care putty and applying two coats of oil bound distemper over a coat of alkali resistant primer complete all as specified and as directed.

All as per item No. 23 above but in ceiling complete all as specified and as directed.

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

Material and labour for preparation of old plastered surfaces of wall, and applying one coat of Anti Fungal paint white or coloured by auto roller complete all as specified and directed.

M&L for preparation of new plastered surfaces of wall and applying two coats of cement base paint over a coat of alkali resistant primer complete all as specified and as directed.

M&L for complete removal of existing treatment on plastered surfaces of wall including washing, rubbing down and stopping of old treatment and applying two coats of cement base paint over a coat of alkali resistant primer complete all as specified and as directed.

M&L for preparation of old plastered surfaces of wall and applying one coat of white wash complete all as specified and as directed.

All as per item No. 29 above but in ceiling 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.

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

Demolition of cement concrete of any description including any treatment there to and in any position provided as in roof padding, roof kerb etc complete all as specified and 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.

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.

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. (MAKE : Pibial Primer of TEXSA or equivalent product of BITUMAT/ BITUNIL/SIKA/STP) (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/STP 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.)

Supply and fix in repairs UPVC (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 as directed.

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

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

Supply and fix 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.

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 any colour having tensile strength of 550 Mpa as in roof covering/cladding to wall, fixed with self tapping screws 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 complete all 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 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 as 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 as 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 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 stone aggregate) as in chajja complete all as specified and directed. (Note: Formwork and reinforcement shall be measured and paid separately)

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 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 use and waste of Formwork to chajjas, troughs and similar items including edges for rough flat concrete surface 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 smooth without using extra cement complete all as specified and as directed.

Dismantling of old GI barbed wire fencing of any description from RCC fencing post complete all as specified & directed. (Note. Each line of wire to be measured separately)

Dismantling posts or struts (wood, steel or R.C.C.) embedded in concrete any section, including taking out embedded portion and making good disturbed ground and disposal of debris from the premises complete all as specified & directed.

Material and labour for providing cement concrete (1:2:4) type B2 (nominal mix) (using 40 mm graded stone aggregate) in foundation filling and mass concrete for securing/ fixing of fencing post/ strut in under water including necessary formwork and dewatering as required at site complete all as specified and directed.

Supply and fix rolled mild steel Fe-410 (Grade E-250A) angle or tee section as in post, cut to length and bend to shape as directed, fixed independetly without connecting plate etc, including provision of 05 to 06 Nos gaps/cuts/holes in each post for providing/laying barbed wire and one coat of red oxide zinc chrome primer after preparation of new steel surfaces complete all as specified and as directed. (Note :- Supply and fix barbed wire shall be measured and paid separately)

Supply and fix mild steel wind ties for roof including securing bolts; posts and struts in fencing including cutting tops to shape as directed, drilling holes,notching for wire,etc.; flat iron fillets( for securing wire mesh etc.) including all necessary dilling , bolting or riveting etc; and similar work conforming to Fe-290 Gde E-165.complete all as specified and directed.

Supply and fix mild steel 5 to10 mm diameter of shank screw bolts (machine made) with hezagonal or square heads at one end and screwed the other, or screwed both ends, each screwed end to be fitted with washers and one hexagonal or square nut, length of bolt exc 5 cm and n.exc 10 cm long complete all as specified and directed.

S&F MS 10 mm dia round bars (Fe-410-W (Gde E-250 quality-A or Fe 290 (Gde - E-165)) as line wire for holding chain link mesh including applying two coats of synthetic enamel paints over a coat of red oxide zinc chrome primer complete all as specified and directed.

Supply chain link fencing 50 mm x 50 mm mesh 4 mm thick, made out of mild steel galvanised hot drip wire including provision of binding wire complete all as specified and directed.

Fixing only chainlink fencing including line wires , any mesh , size and type to any type of standards , rails , straining bolts etc including provision of binding wire complete all as 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 not exceeding 10cm with or girth complete all as specified and as directed.

Taking down chowkahts or frames with shutters (without taking off shutters from the frame) exceeding 1.5 Sqm but not exceeding 4 Sqm each complete all as specified and as directed.

Material and labour for framed work as in steel doors of gates of angles or other section with gusset plates, rails, braces, etc. complete conforming to Fe-410W (Gde-E-250) quality 'B', drilled for fixing of steel sheeting or other covering. Doors etc to be prepared hanging or sliding with and including either hooks and hinges or steel hanging door fittings (exclusive of steel sheeting or other covering, running rails and guides) and hanging, also fastening and fixing complete all as specified and directed.

Material and labour for mild steel, plain, black sheet 1.60mm thick in steel gates, wall cladding and similar works, cut to size, holes punched, including round headed screws clout nails or rivets and fixed to wood or steel framing with plain 40mm lap joints with riveted or welded seams including bending or turining up, mitred angles etc, as required complete all as specified and directed.

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

RBS Builders (BID ID -3067241)

TOTCO (BID ID -3065131)

GOODWILL AND CO. (BID ID -3068177)

Shree Mahabir Builders (BID ID -3063276)

RADHA ENTERPRISE (BID ID -3065510)

MOTHER LUMIER INDUSTRIES (BID ID -3066920)

Kanta International (BID ID -3060209)

SHRI MILAN CHANDRA DAS (BID ID -3063021)