Public Works Building And NH Department Tender

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Public Works Building And NH Department - PWDBNH Tender

Works
Civil And Construction
Eprocure
Opening Date5 Oct 2024
Closing Date25 Oct 2024
Tender Amount₹ 1,69,98,076 
Notes
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Costs

Summary

Upgradation And Renovation Of The Building Of Hostel Of Nowgong Polytechnic_nagaon Under Sopd-g

Description

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BOQ Items

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Dismantling and removing the existing door and window frame (chowkath) both wooden and steel of different sizes without damaging the walls and removing the frame and necessary repairs to the edges of the walls as directed for all levels. (i) Area of door/window up to 3.00 m2

270

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Dismantling and removing the existing door and window frame (chowkath) both wooden and steel of different sizes without damaging the walls and removing the frame and necessary repairs to the edges of the walls as directed for all levels. (ii) Area of door/window above 3.00 m2

5

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Demolishing brickwork including stacking of serviceable materials and disposal of unserviceable materials as directed for all levels

21.59

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Dismantling all types of corrugated/ trapezoidal sheet roofing including ridges, hips, valleys and gutters etc. and stacking the materials as directed by the department for all levels

595.86

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Earthwork in excavation for foundation trenches of walls, retaining walls, footings of column, steps, septic tank etc. including refilling (return filling) the quantity as necessary after completion of work, breaking clods in return filling, dressing, watering and ramming etc. and removal of surplus earth with all lead and lifts as directed and specified in the following classification of soils including bailing out water where necessary as directed and specified. (A) Up to a depth of 2.00m below the existing ground level. (a) In ordinary soil

122.1

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Providing soling in foundation and under floor with stone/ best quality picked jhama brick, sand packed and laid to level and in panel after preparing the subgrade as directed including all labour and materials and if necessary dewatering, complete. (a).Brick on flat soling.

830.95

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Plain cement concrete works with coarse aggregate of sizes 13mm to 32mm in foundation bed for footing steps, walls, brick works etc. as directed and specified including dewatering if necessary, and curing complete (shuttering where necessary shall be measured and paid separately). (a) In prop 1cement: 3 sand :6 coarse aggregate by volume

58.22

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Providing precast R.C.C slab over drain ,septic tank etc. in prop. 1:2:4 reinforced with 10mm M.S. bar @ 150mm centre both ways tying with 20 gauge black annealed wire with necessary shuttering , curing etc. complete including fixing in position as directed. a) 100mm thick slab

58.91

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Sides of tie beams, grade beams etc. at or below ground level. (b) Using 25mm thick plank

5.27

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Supplying, fitting and fixing in position reinforcement bars conforming to relevant I.S. Code for R.C.C. work/ R.B. walling including straightening, cleaning, cutting and bending to proper shapes and length as per details, supplying and binding with 20G annealed black wire and placing in position with proper blocks, supports, chairs, spacers etc. complete. (No extra measurement for lap, hook, chair, anchor etc. will be entertained in the measurement as they are included in the rate) (Upto 1st floor level) b) Other ISI approved TMT reinforcement bar (SAI/BISCON/THERMAX) (For Assam Type Bldg., drain works,,retaining wall&boundary wall etc. .

49.7

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Providing and laying plain/reinforced cement croncrete works cement, coarse sand & 20mm down graded stone aggregate including dewatering if necessary, and curing complete but excluding cost of form work and reinforcement for reinforced cement concrete work (form work and reinforcement will be measured and paid separately) (I) Using Mixer Machine (A) In substructure up to plinth level Foundation, footing, columns with base tie and plinth beam, pile cap, base slab, retaining walls, walls of septic tank, inspection pit and the like and other works not less than 100mm thick up to plinth level. N) Without using admixture, plasticiser b) M20 grade concrete or Prop. 1:1.5:3

0.24

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Grading roof for water proofing treatment with (a) Cement concrete 1:2:4 (cement: 2 coarse sand: 4 graded stone agg. 20 mm nominal size)

130.08

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Brick work in cement morter with 1st class brick including racking out joints and curing complete as directed. (I) In Sub-structure upto plinth level including dewatering if necessary (b) In proportion 1:4.

33.97

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1st class brick nogged wall in cement mortar including racking out joints and curing complete as directed in super structure above plinth up to 1st floor level (protruding M.S rod/Tor steel of column to be embeded in cement mortar and will be measured and paid separately) (A) 112mm thick brick wall (a) In cement mortar in proportion 1:4. (1 cement:4 sand)

413

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15 mm thick Cement plaster in single coat on single or half brick wall for interior plastering up to 1st floor level including arises, internal rounded angles, not exceeding 80mm girth and finished even and smooth including curing complete as directed. A) On rough side b) In cement mortar 1:4

2426.55

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Extra over item no 6.2.1to 6.2.3 for interior plastering above 1st floor level for every addl floor or part thereof including curing complete as directed. a) On Single coat plaster

1050.9

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Providing VITRIFIED floor tiles of approved quality of specified size, shape and thickness not less than 18mm on floors, skirtings, risers and treads of steps over 15 mm thick base of cement mortar in prop. 1:3 (1 cement : 3 coarse sand ) including cutting where necessary finished with flush pointing with Fix-A-Tile (Choksey/Sika/Pedelite/Rouf) / white cement slurry mixed with approved pigment to match shade of tiles, mixed with approved pigment to match the shade of the tiles, complete at all levels as specified and directed. (Coloured pigment should be in conformity with colour of tiles and as approved and directed by the Department) a) Normal range Somany/ Orient/Nitco /Varmora/VITA/ Marbito/ Make ii) Of size 600mmx600mm and above

461.34

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Providing Antiskid Tiles of approved quality size, shape not less than 8mm on floor, skirting over a cement mortar bed 15mm thick of 1:3 (1 cement: 3 coarse sand) approved make fix with Fix-A-Tile (Choksey/Sika/Pedelite/Rouf)/ white cement complete at all level as specified and directed. (A) CERAMIC i)Normal range (Sizes 300 mm x 300mm and above) (a)Orient made: Galaxy Brown, Galaxy creama, Galaxy Pink, Galaxy Green, Pulsar Beige, Pulsar Blue, Pulsar Dove, Pulsar Pink, Burj Brown, Burj Green, Burj Slate

291.95

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Providing polished ceramic wall tiles of approved quality, size, shape and thickness not less than 8mm on walls and skirtings over cement mortar bed 10 mm thick in prop. 1:3 (1 cement : 3 coarse sand ) including cutting where necessary finished with flush pointing with Fix-A-Tile (Choksey / Sika / Pedelite / Rouf) /white cement slurry mixed with approved pigment to match shade of tiles complete at all levels as specified and directed. (Cement plastering to be measured and paid separately). (Coloured pigment should be in conformity with colour of tiles and as approved and directed by the Department). (Walls means both interior and exterior walls). a) Normal range Somany/ Orient/Nitco/Asian Make ii) Of size 200mmx300mm and above

1298.14

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Providing, fitting and fixing in position false ceiling of 6mm thick Bison panel (cement bonded particle board) on timber frame of 1st class local wood (Hollock/ Bonsum/ Sundi) of 50mm x 50mm spaced at not more than 1.20m apart , fixed to the wall at the end with necessary nails, wood screws, hooks,bolts etc. including painting (one coat primer and two coats of painting) as necessary complete as directed by the Department for all levels. (a) Both sides commercial

434.58

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Providing dressed wood work in post, walls,battens, post plate bressumers etc. includingsupplying and fixing with spikes, nails,bolt and nuts of 12mm dia(M.S) and required length etc.complete with kiricide oiling two coats to faces in contact with C.C or masonry (M.S flats, angle cleats and bolt and nuts required for flats,angle cleats wherever use shall be measured and paid separately) (a) With sal wood

12.71

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Providing and fixing flush door shutters solid core construction with frame of 1st class hard wood with cross band and face veneered ply wood face panels conforming to relevent I.S code including oxidised iron butt hinges (100mm x 75mm x 3.5mm) 6 nos with necessary wood screws. b) Non decorative type and block board core. (ii) 35 mm thick .

231

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Providing fitting and fixing 1/3 panelled 2/3 glazed wooden shutters for doors/windows including oxidised iron butt hinges (100mm x75 mm x3.55 mm) with necessay screws including glass panes (other fittings to be measured and paid separately) A) With Teak wood / Sissu wood. (ii) 35 mm thick.

115.5

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Providing, fitting and fixing fully glazed window with sash bars including oxidised M.S butt hinges (75mmx 60mmx3.15mm) 2nos.on each leaf and 3 nos. on single leaf (glass panes to be measured and paid separately) A) With Teak wood / Sissu wood. (ii) 35mm thick

259.2

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Providing, fitting and fixing fully glazed clerestory window and fan light including fitting and fixing 2 M.S pivot hinges (75mm x 20mm x 3mm), eye hook and nylon chord complete (glass panes shall be measured and paid separately) A) With Teak wood / Sissu wood. (ii) 35mm thick

30

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Providing and fixing clear sheet glass beded in putty and fixed with/without wooden bidding including necessary cutting and glass to be required sized(payment for wooden bead shall be made separately) (1). Area of glass panes not exceeding 0.15m2 (c). 3.00mm thick.

45

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Providing and fixing clear sheet glass beded in putty and fixed with/without wooden bidding including necessary cutting and glass to be required sized(payment for wooden bead shall be made separately) (2). Area of glass panes exceeding 0.15m2 but not exceeding 0.52m2. (b). 4.00mm thick.

32

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Providing & fixing Armstrong Mineral fibre Acoustical suspended ceiling system with dune ( bev. tegular) edge tiles with armstrong XL 15mm exposed / silhouette grid (600x600x16)mm a) Sliding door bolts i) 300mm x 16mm

150

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Providing & fixing Armstrong Mineral fibre Acoustical suspended ceiling system with dune ( bev. tegular) edge tiles with armstrong XL 15mm exposed / silhouette grid (600x600x16)mm b) Tower bolts i) 300mm x 12mm

800

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Providing & fixing Armstrong Mineral fibre Acoustical suspended ceiling system with dune ( bev. tegular) edge tiles with armstrong XL 15mm exposed / silhouette grid (600x600x16)mm c) Door handles iii) 150mm

600

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Providing, fitting and fixing M.S. grill of required pattern for windows/ clerestory windows/ openingwith M.S. flats at required spacing in frame all round, squre or round M.S. bars with round headed bolts and nuts or screws. I . Plain grill (c) Fixed to Brickwork/P.C.C/R.C.C.

651.76

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(a) Removing white or colour wash by steel wire brushing and/ or scraping, sand papering and preparing the wall surface smooth including necessary repairs to scratches complete.

16075

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c) Applying one coat of distemper primer of approved brand and manufacture on wall surface after throughly brushing the surfaces free from mortar droppings and other foreign matter and including preparing the surface even and sand papered smooth.

10736.1

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h). Distempering with dry distemper of approved brand and manufacture(one coat) and of required shade on old wall surface to give an even shade,after throughly brushing the surface clean of all grease, dirt, loose pieces of scales including preparing surface even and sand papered smooth.

10736.1

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i). Extra over item no (f), (g) and (h) above for distempering every subsequent coat of distempering with dry distemper of approved brand and manufacture.

10736.1

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a) Applying one coat of cement primer of approved brand and manufacture on new wall surface after throughly brooming the surfaces free from mortar droppings and other foreign matter and including preparing the surface even and sand papered smooth.

5349.2

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Finishing old / new wall with water proofing weather coat smooth anti-fungal exterior painting of approved make of Berger paint of required shade after cleaning and clearing the surface etc. including scaffolding complete as directed at all levels (two coats)

5349

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Applying priming coat over new wood and wood based surfaces over 100mm in girth/width after and including preparing the surface by throughly cleaning oil, grease, dirt snd other foreign matter , sand papering and knotting. (b). With ready mixed paint , wood primer (white).

1568.7

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Painting two coats (excluding priming coat) on new wood and wood based surface with enamel paint of approved brand and manufacture (Asian paint/ Berger paint/ ICI paint/ J & N paint/ Nerolac) to give an even shade including cleaning the surfaces of all dirt, dust and other foreign matter sand papering and stopping. (i).Surfaces over 100mm in width or girth. a). General purpose (Asian paint/ Berger paint/ ICI paint/ J & N paint/ Nerolac).

1568.7

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Applying primary coat over new steel and other metal surface over 100m in width or girth after preparing the surface by throughly cleaning oil,grease, dirt and other foreign matter and scoured with wire brushes, fine steels, wood scrapers and sand paper. a). With ready mixed "red-lead/ red oxide" primer.

10

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Painting two coats (excluding priming coat) on new steel and other metal surface with enamel paint of approved brand and manufacture(Asian paint/ Berger paint/ ICI paint/ J & N paint/ Nerolac) to give an even shade including cleaning the surface of all dirt, dust and other foreign matter. (i).Surfaces over 100mm in width or girth. a). General purpose (Asian paint/ Berger paint/ ICI paint/ J & N paint/ Nerolac).

10

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Preparing the RCC surface in roof slab, chajjas, terraces, sunken slabs, septic tank, OH tank, raft slab, walls etc. by thoroughly cleaning with wire brush etc. followed by power washing for making the surface absolutely free from any foreign particles like dust, oil, grease etc. and allowing surface to dry complete as directed at all levels.

1626.23

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(A) Supplying, mixing, laying and applying the following waterproofing systems over Raft slabs, Roof slabs, Terraces etc. including curing complete as specified and directed by the Department at all levels.: (i) 1mm thick single coat of Master Crete M-81 of Choksey Chemicals /Dr. Sealkit Sealcrete (Asian Chemicals)/ mixed with cement in the ratio 1:2 as a prime coat. (ii) 3mm thick Polymer modified mortar - Cement sand mortar (in prop 1:3) mixed with Master Crete M-81/Dr. Sealkit Sealcrete (Asian Chemicals) @ 15% by weight of cement. (iii) 1mm thick coat of Master Crete M-81 /Dr. Sealkit Sealcrete (Asian Chemicals) mixed with cement in the ratio 1:2 as final coat. (B) Using RHEOMIX 131 OF BASF

1626.23

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Providing undressed wood work in roof truss, rafter, purlin, tie and the like including hoisting and fixing in position with necessary spikes, nails including M.S straps with bolt and nuts etc.complete with kiricide oiling two coats to all timber members and two coats of anticorrosive paint to M.S straps (M.S flats, angle cleats, and bolt and nuts required for flat and angle cleats wherever used shall be measured and paid separately) (b) With Hollock/ Sundi/ Sam

5.8

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Providing corrugated galvenised Iron sheet roofing of TATA SHAKTEE / SAIL including fitting and fixing necessary galvenised J or L hooks, bolts and nuts 8 mm dia with bitumen washer 25 mm dia x 3 mm thick and 1.6 mm thick limpet washer complete excluding cost of roof truss, purlin etc. (Roof trusses and purlin etc.to be measured and paid separately). (b) 0.50 mm thick

585.04

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Providing galvd iron ridging of TATA SHAKTEE / SAIL including supplying and fixing necessary galvd screws/washers etc. complete as directed. (b) 0.50 mm thick (ii) 230 mm lapping

50.4

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Chipping and breaking/ cutting of loose concrete mortars etc. using electrical chipping hammers to the satisfaction of the Engineer-in Charge for successful execution of the subsequent rehabilitation works at all height with all leads, lift etc. complete with all tools and machineries required for the job, operator, applicator, labour, scaffolding for staging and supervision etc.

274

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Repairing of spalled concrete in columns by the following processes as specified and directed by the department complete at all levels: B. Corroded reinforcement to be replaced by cutting and welding new reinforcement of minimum 25mm dia. and overlapping on both side as specified and directed.(reinforcement bar to be measured and paid separately).

2320

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Providing and applying two coats of Nitozinc primer a two component epoxy zinc rich primer/ sika top armatec-108 or equivalent product on the properly cleaned and prepared steel bars after the required chipping and cleaning of the concrete surface as per the manufacture's specifications.

274

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Before laying of the micro concrete the substrate shall be coated with a bonding agent, Nitobond EP std. / Sikadur - 32 or equivalent product and the micro concrete shall be poured within 6 hrs. / 4 hrs. or as applicable of the application of the bonding agent

274

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Providing formwork using L&T-Doka formwork system with 12mm thick Plywood Board sheathing supported by timber H-beams and steel props with tripods including centering, shuttering, strutting and propping etc. complete and removal of the same for in situ reinforced concrete and plain concrete work in: Columns, Pillars, Posts & Strut of square/ rectangular/ polygonal in plan or any shape like Tee/L etc. having plane vertical face

252

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Providing formwork using L&T-Doka formwork system with 12mm thick Plywood Board sheathing supported by timber H-beams and steel props with tripods including centering, shuttering, strutting and propping etc. complete and removal of the same for in situ reinforced concrete and plain concrete work in: Sides and Soffits of Beams, beam haunchings, cantilever girders and bressumers. (a) Using Flex system for height of propping and centering below supporting floor to ceiling upto 4.5m

22

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Providing and placing free flow micro concrete Renderoc RG/ Sika micro concrete -2 or equivalent product of after mixing slurry tight shuttering. The micro concrete should be mixed mechanically while maintaining water, powder ration of 0.16 strictly in accordance with the manufactures instructions and as per the direction of the Engineer-in charge. The micro concrete should develope a compressive strength of 10 N/mm2 within 1 day. 40 N/mm2 within 7 days and 50 N/mm2 within 28 days. The cost is inclusive of materials, transportation, labour, taxes etc. all complete.

20.55

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Drilling 12mm dia x 100 mm hole in to the concrete surface using concrete hammer drill machine. Providing 10mm PGMS nozzles in a grid of 0.25 m both the injecting with high strength cementitious grout Cebex 100 / Sika Intraplast EP or equivalent product till completion and refusal of grout complete as per manufacture's specifications. The nozzle are to be sealed of after grouting using Renderoc Plug/ Sika-2 mortar or equivalent product injecting with high strength cementitious grout Cebex 100 / Sika Intraplast EP or equivalent product of Fosroc complete as per the specifications of the manufacturer.

10

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Providing and applying two component epoxy resin based moisture intensive low viscous Sikadur - 53 UF for high pressure injection grout with drilling and fixing of nozzle at 0.30mt center to center as per the manufacturer's specifications. The cost is inclusive of material. labour, tools & tackles etc. all complete.

10

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Cracks opening should be chiselled out to approximately 20 mm x 20 mm and should always be undercut to avoid formation of a "V" shape and cut back to a minimum depth of 15 mm and given a good mechanical key to apply Renderoc plug / Sikadur - 31 or equivalent product based per manufacturer's specifications.

10

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Watersupply and Sanitary Works Providing fitting and fixing vitreous water closet squatting pan (Indian type W.C Orissa pattern) with all fittings and fixtures complete including cutting and making good to the walls and floors whereever required. (Flushing Cistern to be paid separately) Indian type Orissa pattern of size 500mm ii) Hindware make

30

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Providing fitting and fixing vitreous china pedestal type water closet (European type W.C pan 400mm high ) with seat and lead ,CP brass hinges and rubber buffers , CI/MS brackets , 40 mm dia flush band with fittings including painting of fittings and brackets, required. (Flushing Cistern to be paid separately) B) Hindware make a) White (iii) Water closet POPULAR "P (Cat.No.20044) (inclusive of seat cover)

4

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Supplying, fiting and fixing PVC flushing cistern with all internal fittings with CI brackets including fitting and fixing standard size CP flush pipe, union clamps etc. compete as directed and specified (pipes will be measured separately) ii) Hindware make a) White (i) Sleek+ PVC cistern

34

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Providing fitting and fixing vitreous china flat back type lipped front urinal basin with standard flush pipe and CP brass spreader andbrass unions, etc. complete including painting of fittings and brackets, cutting and making good the walls & floors wherever required. (A) Parryware Make (a) White (i) New Magnum (Cat. No.C0575)

24

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Providing vitreous China wash basin with CI/MS brackets, C.P brass chain with plug,PVC waste pipe including painting of fittings and brackets, cutting and making good the walls wherever required. (Pillar cock, stop cocks, waste coupling are to be paid separately) PEDESTAL BASIN (with pedestal) (B) Hindware Make (a) White (i) CEDER 570 x 440 (Cat. No.91049/91115)

15

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Providing, fitting and fixing CP towel rail complete as directed and specified. (a) Jaquar make (ii) Continental 600mm (Cat.No. ACN-1111N)

10

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-

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Providing, fitting and fixing Chrome Plated waste coupling complete as directed and specified. (a) Jaquar Make (i) 32mm (HT/FT) (Cat.No.ALD-705 / 709)

10

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Supplying, fitting and fixing PVC pipes of 6 Kg/cm2 (Supreme/Prince) or other ISI approved including joining ,fitting and fixing wiyh clamps etc.as necessary complete at all levels including below G.L as directed and specified. a) In exposed surfaces or in trenches. (ii) 110mm dia.

507

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(iv) 75mm dia.

300

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Supplying fiting and fixing 87.5 degree PVC bend with door of (Supreme/Prince) or other ISI approved including joining , fitting and fixing etc. as necessary complete at all levels including below G.L. as directed and specified. a) In exposed surfaces or in trenches. (ii) 110mm dia.

50

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(iv) 75 mm dia.

50

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Supplying fiting and fixing PVC single tee with door of (Supreme/Prince) or other ISI approved including joining , fitting and fixing etc. as necessary complete at all levels including below G.L. as directed and specified. a) In exposed surfaces or in trenches. (ii) 110mm dia.

20

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(iv) 75 mm dia.

20

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Providing and fixing Chlorinated Polyvinyle Chloride (CPVC) Pipes, having thermal stability for hot and cold water supply including all CPVC palin and brass threaded fittings i/c fixing the pipe with clamps at 1.00m spacing. This includes jointing of pipe (A)) Exposed or in trenches b) 20 mm nominal outer dia pipe

50.42

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c) 25 mm nominal outer dia pipe

50

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d) 32 mm nominal outer dia pipe

50

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e) 40 mm nominal outer dia pipe

50

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f) 50 mm nominal outer dia pipe

50

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(B) Concealed pipe with cutting chases & making good the walls b) 20 mm nominal outer dia pipe

50

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c) 25 mm nominal outer dia pipe

50

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d) 32 mm nominal outer dia pipe

50

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e) 40 mm nominal outer dia pipe

50

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f) 50 mm nominal outer dia pipe

50

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Supplying fitting and fixing C.P. bib cock 15mm dia of approved brand directed and specified. (G.I. & C.P pipes will be measured separately) Jaquare make (a)Continental /Clarion (i)Standard

80

-

-

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Supplying and fitting fixing C.P. pillar cock of 15mm dia of approved brand as specified and directed. Jaguar make (a) Continental

4

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Supplying and fitting gun metal country pit valve (full way valve) I.S.I. Make as specified and directed. a) 50mm dia

5

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b) 40 mm dia.

5

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c) 25 mm dia.

5

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d) 2O mm dia.

5

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e) 15 mm dia.

5

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Supplying and fitting ball valve as specified and directed.. a) 25 mm dia. (gun metal)

2

-

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b) 20mm dia. (gun metal/Copper)

2

-

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Supplying fitting and fixing chrome plated (C.P.) stop-cock of approved brand and size as mentioned below as directed and specified.(G.I. & C.P pipes will be measured and paid separately) Jaquar (ii)15mm dia( Angular stop cock )

50

-

-

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Providing fiting & fixing C.I. Grating to the floors complete as directed and specified. (a) 110mm dia

8

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Supplying and placing plastic cylindrical vertical claused top (PCVC) tank of Sintex / Polycon / Patton make over the stagging with manhole cover with locking and cleaning arrangement including providing pads of size as required for inlet and outlet pipes 2000 Lt capacity (a) Sintex make

10

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Labour for boring hole for inserting tube well pipes through different soil/ rock media including hire charges of drill pipes, scaffolding, tools and plants as necessary and taking out the same and lowering pipes, fittings complete as directed by the Department. iii) Bore hole of 125mm diameter

120

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Supplying, fitting and fixing pipes plain/bevel ended for casing, conforming to relevant IS codes of practice including supplying and fitting of tube well accessories, lowering of assembly pipes concentrically in the borehole followed by supplying and packing of pea gravel free from dirt, dust and other foreign materials in the annular space between the borehole and assembly pipes complete as directed by the Department. G.I. pipe a) TATA / SAIL (Medium) socket should be welded to the pipes. iv) 100mm diameter

116

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Supplying, fitting and fixing suction pipes plain/bevel ended, conforming to relevant IS codes of practice including supplying and fitting of accessories, lowering of assembly pipes concentrically in the casing pipes complete as directed. A) G.I. pipe a) TATA / SAIL (Medium)socket should be welded to the pipes. iii) 40mm diameter

110

-

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Supplying fitting and fixing GI filter 2.00 metre long.

2

-

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Supplying fitting and fixing check valve (non return valve) including thread to pipes. ii) 32mm diameter

2

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Flushing, clearing, washing and watering of the tube well

2

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Development of the tube well with compressor or by over pumping unit for 48 hours till sand free discharge is obtained

2

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Construction of inspection pit inside measurement 450mm x450mm x450mm flush with 100mm diameter HCI/PVC pipes and cement concrete base in proportion 1:3:6 over flat brick soling, 12cm brick wall in cement mortar in proportion 1:4 finished with 13mm cement plaster in proportion 1:2 in side wall and floor. 450mm x450mm air tight C.I. inspection pit cover and frame complete including supplying of materials, necessary excavation of pit as directed.

4

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