GE/ALP (8329B) KOLKATA OF 2024-25

Amount

Cleaning of spot bloackage of EWC/IWC/WHB of any dia at any location and at any height of building and make serviceable by using mechanical device or manually complete all as specified and directed.

Taking down inspection door from CI soil/vent pipe, bend/Tee/ "Y" junction and removing blockage material (including rodding if required) for cleaning of blockage and refixing the door after completion of the job complete all as specified and as directed.

Cleaning of under ground sewage line upto 200 mm dia by mechanical operation/civil agencies/ rodding/by bamboo split, rope through pipe from manhole to manhole ,WC to 1st manhole /GT/Inspection chamber and having the pipe clean for easy flow of sewage line and removal of offensive material at a distance n. exc. 50 mtr, deposited the material in excavated pit including excavation and cover the pit with excavated earth, levelling of surplus excavated soil round the pit and spreadding of bleaching powder around the pit complete all as specified and as directed. Note : No separate payment shall be made for mechanical operation/civil agencies where required or directed. Cost is included in unit rate.

Opening access door or cleaning eye of bends or junction of AC/CI pipe (soil/waste) at any position and at any height and cleaning by any means and flushing with clean water and refixing access door, complete all as specified and directed.

Opening of chocked nahani trap/floor trap by any means and flushing with clean water and refixing of grating complete all as specified and directed.

Cleaning of deposited earth, silt, debris, sludge, water from drain and removal of debris to outside or inside the premises of MoD land exc. 1.50 km but n exc. 5 km and depositing and Complete all as specified and as directed.

Dewatering of sludge, water from Manhole, sewage line , Sump by suction pump and dispose off outside the premises of MoD land and depositing and Complete all as specified and as directed

Cleaning of Manholes any size and depth upto 2.0mtr by means of mechanical operation/civil agencies, spades, buckets and other suitable process to clear all silt , rubbish, sludge etc and depositing all rubbish silt etc to a pit and including excavation of pit to a distance n. exc 50 mtr and finally top portion of pit to be covered by a 100 mm thick layer of excavated earth with and including spreading of bleaching powder completed all as specified and directed. Note: No separate payment shall be made for taking up cover/cover slab and refixing the same and mechanical operation/civil agencies where required or directed. Cost is included in unit rate.

All as per item 8 above but depth of Manhole exc. 2.0 mtr and not exe.5.0 mtr complete all as specified and as directed.

All as per item 8 above but from gully trap/ inspection pit of any dia of sewage or drainage pipe complete all as specified and as directed.

S & F in repair Vitreous China Squatting pan, Orissa pattern, size 580 x 440 mm white with `P' or `S' trap, front or back inlet and integral foot rests including connection to trap, to flushing pipe etc. complete including making good to floor complete all as specified and as directed.

Supply and applying two coats of High performance elastomeric cementitious waterproof coating sandwiched with 45 GSM glass fibre reinforcement on the entire floor and 1.0 m of all walls of all toilets as per following methodology:- Cleaning of exposed concrete surface by mechanical means or by hydro blasting to remove laitance, loose particles, contamination etc. which may hinder bonding. Coving of RCC joints with PCC (1:1.5:3) mixed with Integral Water Proofing compound. Applying one coat of Waterproofing membrane to concrete surfaces followed by application of 45GSM glass fibre on the wet surface. Applying second coat of waterproofing membrane at the right angles to the direction of first coat. Second coat shall be applied after the first coat gets dry. Sprinkling fine aggregate immediately after the application of second coat to get the mechanical key for protective plaster. Curing to Water proofing membrane to be carried out for minimum period of 3 days with ponding complete. The Water Proofing Product Should have Mixed density: 1.68g/cc (brushable consistency). Adhesion to concrete : >1N/mm2. Static crack accommodation: 1mm. (Fosroc/Elantas beck/Kunal conchem)

S & F in repair vitreous china wash down water closet (Pedestal) including PVC seat cover closed pattern with flat bottem and cover and mild steel chromium plated hinge device,connection to drain or outgoing pipe and to flushing pipe, antisyphonage pipe joint to socket or stoper etc. complete all as specified and as directed

Supply and Fixing in repair vitreous china wash hand basin, white, flat back, size 550mm x 400mm excluding chain and plug and porcelain stopper but including cutting for and pinning in ends of and including brackets, waste pipe & CP brass waste coupling of 32mm dia complete all as specified and directed. Note : Rate quoted under this item deemed included fixing of taps, plug and chain and connecting up to supply pipes, wastes or traps etc.

S & F in repair 10 ltrs capacity PVC valveless, syphonic action type, flushing cistern,low level,white,with inlet ,ball valve, float and handle including 600mm PVC commector pipe and flush pipe (long bend) for low level cistern complete all as specified and directed.

Supply and Fixing in repairs Plastic water closet seat, closed pattern with flat bottom, and cover and mild steel chromium plated or aluminised hinging device complete all as specified and as directed.

Dismantling floor, hearth or wall tiling including cement mortar bedding (but not backing), removing serviceable tiles to store and rubbish off the premises complete all as specified and as directed.

M&L for coloured non skid ceramic floor tiles area of each tile exc 0.06 but n exc 0.11 sqm set and jointed in neat cement slurry and pointed in white or coloured cement to match over 15mm thick screed bed with CM (1:6) complete all as specified and as directed.

Material and Labour for coloured, glazed ceramic tiles size 300x450x7-8mm thick, in dado/skirting etc, set and jointed in neat cement slurry and pointed in white cement mixed with pigment to match, laid with and including over10 mm thick rendering in cement mortar (1:4) complete all as specified and as directed.

Dismantling of cast iron or reinforced concrete drain pipes, jointed in cement mortar and taking out of trenches, if required complete all as specified and as directed.

Material and Labour for PCC concrete bed to drain pipe , 200 mm bore pipe including packing under and hunching against the sides of pipe after they are laid and tested with PCC (1:3:6) type C-2 (using 40 mm graded stone aggreagate) complete all as specified and directed.

Material and Labour for 200 mm bore salt glazed stoneware grade 'A' drain pipe laid in trenches and jointed in cement mortar (1:1) complete all as specified and as directed.

Material and Labour for PCC (1:3:6) type C-1 (using 20 mm stone aggregate) as in surface channels and drains complete all as specified and directed.

M&L for extra for forming fair finished drain or channel 30 cm inner girth in cement concrete, using extra cement, including forms, moulds, mi- tred/stopped ends etc. complete all as specified and directed.

All as per item No 24 above here in before add for each 25 mm girth or part thereof over or under 30cm.

Supply and Fixing in repair CI Nahani trap of 100mm dia, with grating including jointing to waste pipe fixed with cement concrete, type B1 (1:2:4) complete all as specified and as directed.

Supply and Fixing in repair CI floor trap, with grating including jointing to waste pipe of 100mm dia, fixed Cement concrete, type B-1 (1:2:4) complete all as specified and directed.

Supply and Fixing in repair PVC waste pipe 32mm for drain out water from wash basin and sink complete all as specified and as directed.

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

Material and Labour for rendering 15mm thick in cement mortarent mortar (1:6) on other than fair faces of brick work or concreted surfaces finished even and smooth without using extra cement complete all as specified and directed.

Material and Labour for rendering 20mm thick in cement mortar (1:4) mixed with WPC on fair faces of brick work or concreted surfaces in two layers finished even and smooth without using extra cement complete all as specified and directed. Note :- WPC will be measured and paid separately.

Supply only integral water proofing compound.

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

Material & Labour for two coat acrylic distemper (white or coloured as per site reqmt) over one coat of priming chalk whiting on new plastered surfaces of wall incl preparation of surface and incl necessary arrangement for working platform complete all as specified and directed (upto 08 storey bldg).

M&L for two coat of cement base paint (white or coloured as per site reqmt) on new surface of external walls incl preparation complete all as specified and directed. Note : No separate payment shall be made for colour of distemper where required or directed. Cost is included in unit rate.

M&L preparation of new plastered surface and applying three coats of white wash on ceiling all complete in all respect as specified.

Taking down rain water pipes (any size or pattern), including all fittings, heads, shoes, bends, swan-necks, reinforced concrete drain pipes etc., including cleaning or refixing or removal to Store (measured overall length as fixed along the centre line over fittings and accessories) complete all as specified and as directed.

Supply and Fixing in repair 150 mm bore cast iron (spun) soil waste pipes, in any length with or without ears, with cement joints, fixed to walls complete all as specified and as directed.

All as per item No 38 above here in before but 100mm bore.

Supply and Fixing in repair 100 mm bore cast iron branch pieces, single (equal or unequal), ordinary or inverted (spigot or socket type) or with parallel branches fitted with oval access doors.

Supply and Fixing in repair 100 mm bore CI bends.

Taking down PVC (SWR) pipes (any size or pattern) including all fittings complete all as specified and as directed.

Supply and Fixing PVC (SWR) pipe 75 mm bore single socketed in any length with rubber ring joints and laid in floor or fixed in wall complete all as specified and as directed.

Supply and Fixing PVC (SWR)110 mm bore pipes single socketed in any length with rubber ring joints and fixed to wall complete all as specified and as directed.

Supply and Fixing 110 mm bore PVC (SWR) bends any radius including necessary cutting in brick wall and making good to match with existing surface complete all as specified and as directed.

Supply and Fixing 110 mm bore PVC (SWR) junction single, (single T) equal or unequal provided with access door complete all as specified and as directed.

Supply and Fixing cast iron cowls, bore of pipe 100mm complete all as specified and as directed.

All as per item No 47 above but 150mm bore.

Demolition of cement concrete unreinforced in ground floor and paving not exceeding 15cm thick (below or above G.L) complete all as specified and as directed.

Demoltion of brick work or stone/boulder masonry, built in cement mortar or cement lime mortar including all quions, arches, pillars etc, but excluding ashlar facing, precast concrete articles complete all as specified and as directed.

Material and Labour for Brick work with subclass 'B' bricks straight or curved on plan exc 6 m mean radius built in cement mortar (1:6) complete all as specified and as directed.

Material and Labour for Brickwork with subclass B bricks straight or curved in plan any radius with cement mortar (1:4) as in half brickwork complete all as specified and as directed.

Material and Labour for PCC (1:2:4) type B-0, (using 12.5mm graded stone aggregate) as in kerb/ benching/ coping, bed plates, for fixing of hold fast,chajjas, water troughs and the like including weathering, slightly rounded or chamfered angles and throating including necessary formwork complete all as specified and directed.

Material and Labour for 25 mm thick PCC (1:2:4) type B1 (20 mm graded stone aggregate) as in sub base of flooring complete all as specified and as directed.

Material and Labour for 75mm thick PCC (1:3:6), type C-2 (using 40mm graded stone aggregate) as in plinth protection / paving, surface finished even & smooth without using extra cement all complete in all respect as specified.

M & L for joint filling (Size 30mm deep x 10mm wide) with sealing compound grade- A complete all as specified and directed.

Demolition for reinforced cement concrete as in cover slab or equivalent works including cutting reinforcement to facilate demolition complete all as specified and as directed.

M&L for providing RCPC factory made 75mm precast RCC cover slab of 3MT load bearing capacity conforming to IS : 12592 (Grade M-25) 3 Complete all as specified and directed.

Supply and Fixing in repair CP Health faucet with all necessary fittings complete all as specified and as directed.

Cutting into existing man hole for connecting new drains , making good to pipe and rendering ,cutting out existing benching for and forming branch channel (half round or 3/4 section) in cement concrete (1;2:4) type B-1 (using 20 mm graded stone aggregate) smooth finished and benching as required for 225mm dia pipe complete all as specified and directed.

Dismantling of old unserviceable water tank, removing from site, Supply and fixing of rotational moulded polythene water storage tank 1000 litre capacity ISI marked (cylindrical, vertical, double layered with closed top) hoisted and fixed in position including PVC float valve 20mm bore weight not less than 210gms. complete all as specified and directed.

Dismantling of old unserviceable water tank, removing from site, Supply and fixing 2000 Litre capacity rotational moulded polyethylene water storage tanks (multilayer.cylindrical |vertical with closed top) with and including 50 mm dia PVC float valve hoisted and fixed in position complete in all respect as specified and directed.

S&F 15mm bore in repairs CP angular valve with crutch handle, screwed for iron pipe or for brass ferrule and fixed of following size comlete all as specified and directed.

S &F 15 mm Dia in repairs CP Bib taps, with crutch handle, screwed down, screWwed for iron pipe or for brass ferrule and fixed Complete all as specified and as directed

S & F in repairs 15 mm Dia CP stop cock Screwed for iron pipe or for brass ferrule and fixed with crutch handle, screwed down, Screwed for iron pipe or for brass ferrule and fixed complete all as specified and directed.

S&F 15 mm bore pillar taps, Chromium Plated, with capstan heads, chromium plated, screwed down for pipe, high pressure , with or without l'ettered ' 'HOT' or 'COLD' with ong screwed shanks and fly-nuts, screwed for iron pipe complete all as specified and directed.

Material & Labour for applying two or more coats of 100% Premium acrylic emulsion paint having VOC less than 50 gm/litre and UV resistance as per IS 15489:2004, Alkali & fungal resistance, dirt resistance exterior paint of required shade (Company Depot Tinted) with silicon additives @ 1.43 litre/ 10 sqm over and including priming coat of exterior primer applied @ 0.90 litre/ 10 sqm over new surfaces complete all as specified & as directed

M&L for preparing new decorated plastered or unplastered surfaces of ceiling, pillasters, cornices etc and applying coat of 1 mm thick wall care putty with two coat acrylic distemper complete all as specified and as directed. (Work shall be carried out upto 8 storey bldg.)

M&L for water Proofing by doing suface Preparation - Mild chipping of the surface, open the cracks by making V groove, filling cracks with Nano Crack Filler. Providing applying and Nano Water Base Water Proof Paint one coats after surface preparation using brush, not containing toxic materials like Pb, Cr, Zn; having defect-free nano-particles with inhibiting characteristics having bacteria killing rate above 98% and anti-fungal properties, with super hydrophobic properties with contact angle of water more than 750 permeable type with elongation (stretch ability) of more than 300%, in a nano-structured self assembled dispersion system with VOC level of less than 1% , 60 micron DFT. Providing and applying 50 mm screed concrete with 1% Nano EHP Compound having water proof and crack resistant properties, as an additive mixed in cement by weight along with mortar sand etc. Providing and applying Nano Barrier Coat Paint/ Nano Water Base Water Proof Paints 2 coats over screed concrete using brush, not containing toxic materials like Pb, Cr, Zn; having defect-free nanoparticles with inhibiting characteristics having bacteria killing and anti-fungal properties, with superhydrophobic properties with contact angle of water more than 750, with elongation (stretch ability) of more than 300%, in a nano-structured self assembled dispersion system with VOC level of less than 1%, 60 micron DFT per coat complete in all respect as specified and directed.

Providing and applying Nano Water Base of Nano Water Elastomeric Finish two coats over and above one coat Sqm Base Elastomeric Primer not containing toxic materials like Pb, Cr, Zn, biocides/organocides; having defect-free nano-particles with inhibiting characteristics having bacteria killing rate above 40% and high antifungal properties, with super-hydrophobic properties with contact angle of water more than 750, with elongation (stretch ability) of more than 300%, in a nano-structured self assembied dispersion system with VOC level of less than 1% , 40 micron DFT of top coat, including scaffolding, surface preparation, cleaning etc. complete as per specification and as directed.

Dismantling removing all unsound concrete, plastered material by chipping/chiseling gently at all effected and adjoining areas of concrete etc till sound surface is reached all various locations in building (upto 08 storied) subsequently cleaning the surfaces by hair brush and air blower and removing rubbish off the premises and disposing at the dumping site as approved by local authorities including hoisting assembling and fixing of double layer steel scaffolding to external perimeter of building complete all as specified and directed .

Removing of concrete all around reinforcement bar upto 12 mm dia and over from behind the reinforcing bars average 25mm (but not less than 15mm air gap)by manual methods (using wire brushing ,chiseling etc) and applying chloride free rust removing chemical on rusting steel reinforcement bar and removing all rust from steel reinforcement bar by emery paper and cleaning the area thoroughly by water and allow it to dry and totally rust free of reinforcement bar all as complete as per manufacturer's instruction as specified (upto 08 storied bldg).

Material, labour and preparation of existing reinforcement surface by brush and application of two component epoxy zincrich primer on existing reinforcement surface of minimum specific gravity 1.75, adhesive bond strength with steel is 1.50N/mm2 and maximum coverage area 5.00 Sqm per litre. complete all as specified (upto 08 storied bldg).

Material and labour for introducing new reinforcement bars upto 12 mm dia and over for structural connection in RCC beams, columns, lintel and slabs including power drilling holes of appropriate diameters in reinforced or plain cement concrete to a minimum depth of 150mm and upto 200mm including power drilling, fixing the reinforcement in position using epoxy, cleaning of loose dust by blowing air, sealing with epoxy cartridges etc all as specified.(upto 08 storied bldg)

M&L for supply, mixing and placement of micro-concrete cement based prepacked single component chloride free, sulphate free, non-shrink, free flow. elf compacting, ready to use after mixing water in specified proportion of Sika Rep Microconcrete-4 or renderoc-RG of Fosroc in required thickness as per manufacture's instruction and all as directed. Compressive strength (ASTN C 109,cm cube) of 35 MPa at 28 days including application curing compound concrete WB manufactured by Fosroc of equivalent at various locations in Bldgs including necessary form work complete all as per manufactures specification.(upto 08 storied bldg)

Demolition of PCC in ground floor and pavings not exc 15 cm thickness below or above ground level complete all as specified and directed.

M&L for L-shaped rubberised corner guard for sharp vertical edges of length 1500mm width 100x100mm reflective type thickness 10mm complete all as specified and directed.

Providing of double layer self supporting steel scafolding to external perimeter of building duly cross braced and properly aligned for the functional aspect and safety of the building upto 8 storey bldg complete all as specified and as directed.

M&L Anti-skid joint free ceramic (coloured) tiles 7-8mm thick area of each tiles exeeding 0.06sqm but n.exceeding 0.11 sqm in toilet/bath floor etc.set and jointed in neat cement slurry and pointed in white or coloured cement to match complete all as specified & as directed. Note: Screed bed shall be measured and paid separately.

M &L for Anti-skid joint free ceramic coloured tiles area of each tiles (Square / rectangular) exc 0.11 sqm but n. exc 0.18 sqm 7 to 8 mm thick in floor etc set and jointed in neat cement slurry and pointed in white or coloured cement to match complete all as specified and as directed. Note: Screed bed shall be measured and paid separately

M&L for joint free Non-skid ceramic tiles 7 to 8 mm thick area of each tile exceeding 0.18 sqm but not exceeding 0.38 sqm, in floor etc set and jointed in neat cement slurry and over a bedding layer of screed bed 15 mm thick in cement mortar (1:6) and pointed in white/ colour cement to match complete all as specified and as directed

M&L for glazed ceramic (coloured) tiles of size 450x300 6-7mm thick as in vertical surface/dado set and jointed in neat cement slurry and pointed in white or coloured cement to match complete all as specified and directed.

M&L for screed bed or bedding layer of mortar 15 mm thick in CM (1:6) for laying floor finishes.

M&L for bedding layer of mortar 10 mm thick in CM (1:3) for laying wall/dado finishes

RBS Builders (BID ID -3119708)

Tirupati Buildcon Pvt. Ltd. (BID ID -3124427)

CHOWDHURY CONSTRUCTION CO (BID ID -3119763)

KWALITY CONSTRUCTION (BID ID -3118920)

BHARUKA ENTERPRISES (BID ID -3116791)