NHPC Limited Tender

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NHPC Limited - NHPC Tender

Works
Civil And Construction
Civil Works Others
Eprocure
Opening Date25 Mar 2025
Closing Soon15 Apr 2025
Tender Amount₹ 12,85,25,008 
Notes
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Costs

Summary

Fabrication, Supply And Erection Of Modified Sill Beam Of Spillway Radial Gates 1,2 And 3.repairing Of Spillway Glacis Apron With Hpc Of Bay 1 ,2 And 3 And Supply And Erection Of Steel Liner At Dam Of Chamera-iii Power Station(pkg No. Diii-11)

Description

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BOQ Items

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Providing and fixing on wall face unplasticised Rigid PVC rain water pipes conforming to IS : 13592 Type A, including jointing with seal ring conforming to IS : 5382, leaving 10 mm gap for thermal expansion, (i) Single socketed pipes. 110 mm diameter.

75

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Providing and laying 400 G polythene sheet.

1144.05

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Chipping of HPC concrete material from from slabs, beams, columns etc. with manual Chisel and/ or by standard power driven percussion type or of approved make including tapering of all edges, making square shoulders of cavities including cleaning the exposed concrete surface and reinforcement with wire brushes etc. and disposal of debris for all lead and lifts all complete as per direction of Engineer-In-Charg

708

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Drilling suitable holes in reinforced or plain cement concrete with power driven drill machine to a minimum depth of 100mm upto 500mm in RCC beams, lintels, columns and slabs to introduce steel bars for sunshades/balconies including fixing the steel bars in position using epoxy resin anchor grout of approved make but excluding the cost of reinforcement, all complete as per direction of Engineer-in-charge. Upto and including 40 mm dia.

450

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Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level.Thermo-Mechanically Treated bars of grade Fe-500D or more.

51451.89

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Providing and laying in position machine batched and machine mixed design mix M-65 grade cement concrete for reinforced cement concrete work, using cement content as per approved design mix, including laying of concrete to site but excluding the cost of centering, shuttering, finishing and reinforcement, including admixtures in recommended proportions as per IS: 9103 to accelerate, retard setting of concrete, improve workability without impairing strength and durability as per direction of Engineer-in-charge. (Note :- Cement content considered in this item is @ 457 kg/cum. Excess/ less cement used as per design mix is payable/recoverable separately). All works above plinth level upto floor V level.

807.41

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Providing and laying in position machine batched and machine mixed design mix M-25 grade cement concrete for reinforced cement concrete work, using cement content as per approved design mix, including laying of concrete to site but excluding the cost of centering, shuttering, finishing and reinforcement, including admixtures in recommended proportions as per IS: 9103 to accelerate, retard setting of concrete, improve workability without impairing strength and durability as per direction of Engineer-in-charge. (Note :- Cement content considered in this item is @ 330 kg/cum. Excess/ less cement used as per design mix is payable/recoverable separately). All works above plinth level upto floor V level.

336.3

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Filling and placing of Bag filled with loose fine material i/c cost of empty cement bag. (Filler material available free of cost at site)

4200

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Dewatering seepage water from the sump by 7.50 HP electrical dewatering pumps including installation, erection of pumps and pipes etc.

48698.88

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Drilling suitable holes in reinforced or plain cement concrete with power driven drill machine to a minimum depth of 100mm upto 500mm in RCC beams, lintels, columns and slabs to introduce steel bars for sunshades/balconies including fixing the steel bars in position using epoxy resin anchor grout of approved make but excluding the cost of reinforcement, all complete as per direction of Engineer-in-charge. Upto and including 40 mm dia.

144

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Providing, mixing and applying bonding coat of approved adhesive on chipped portion of RCC as per specifications and direction of Engineer-In charge complete in all respect. (i).Epoxy bonding adhesive having coverage 2.20 sqm/kg of approved make.

3058.8

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Centering and shuttering including strutting, propping etc. and removal of form for :Foundations, footings, bases of columns, etc. for mass concrete.

1546.95

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Structural repair with Cementious Mortar (including small cavities 10 to 50 mm deep) in one or two coats complies to or with EN 1504-3 (R4) with Performance Characteristic such as Compressive strength ≥ 45 MPa, Adhesive bond ≥ 2.0 MPa in the concrete of spillway pier walls, retaining wall of stilling basin and like surface ( Up to 10.0 m height from ground floor / ground level) etc complete; including cutting / chipping the patch in proper shape, raking out joints and preparing the surface but the rate is including the cost of loading and unloading, taxes etc.

404.14

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Providing and injecting approved grout in proportion recommended by the manufacturer into cracks/honey-comb area of concrete/masonry by suitable gun/pump at required pressure including cutting of nipples after curing etc. complete as per directions of Engineer-in-Charge. (The payment shall be made on the basis of actual weight of approved grout injected.(a).Epoxy injection grout in concrete/RCC work of approved make.

10353.75

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Fabrication ,Supply & Errection of 12.5 meter long modified stainless steel Sill Beam [(Forging/Plate,C/S,AISI:420/20Cr13(H&T) for Spillway Radial Gate including 36mm dia threaded anchors with double nut, washers and 16 mm dia dowel bar and injection of chemical adhesives etc.(As per drawing No.NHCH-III/2DAO/45/GA/002/00).

19975.74

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Demolishing R.C.C. work manually/ by mechanical means including stacking of steel bars and disposal of unserviceable material within 50 metres lead as per direction of Engineer - in- charge.

1166.73

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Dismantling steel work in built up sections in angles, tees, flats and channels including all gusset plates, bolts, nuts, cutting rivets, welding etc. including dismembering and stacking within 50 metres lead

15980.59

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Providing, Fabrication and installation of 32 mm thick steel liner plate of grade IS 2062- E450A/BR in Spillway Glacis of Dam including rolling to the required radius as per drawing and welding with approved electrode having excellent mechanical properties for heavy joints under restraint and subjected to dynamic loading. (As per drawing no. NHCH-III/2DAO/45/GA/001/00)(Sheet 1&2)

239878.17

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Providing M27 Grade 8.8 fully threaded Anchor minimum length 500 mm, including drilling of hole in 32 mm thick steel liner plate of grade IS 2062-E450A/BR and in HPC and fixing in hole with Epoxy adhesive having characteristics bond strength of 1O Mpa minimum etc, complete in all respect in spillway glacis. (The scope of work i.e. welding on M27 Grade 8.8 fully threaded Anchor and finishing the surface smoothly by grinding is covered in the item of 32 mm thick steel liner plate of grade IS 2062-E450A/BR. (As per drawing no. NHPC-III/2DAO/45/GA/001/01). (01 set contains 1830 nos anchor bolts)

5490

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Providing and fixing of 20 mm diameter grout plug with other hardwares complete in all respect. including (a) Drilling of hole in existing concrete or rock or like the surface, {b) Straightening, cutting, bending and placing in position of grout plug (c) Fixing with cement capsule / Cement grouting, etc all complete in spillway glacis. (As per drawing no-NHCH-III/2DAO/45/GA/001/01), (01 set contains 290 nos grout plugs) Note: Providing and fixing of item no. 10 (20mm thick plate OD:70 mm, ID:20mm threaded) is covered in the item of 32 mm thick steel liner plate of grade IS 2062-E450A/BR.

870

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