Dredging Corporation Of India Limited Tender

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Dredging Corporation Of India Limited - DCI Tender

Works
Civil And Construction
Eprocure
Opening Date6 Apr 2024
Closing Date10 Apr 2024
Tender AmountRefer Documents 
Notes
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Costs

Description

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BOQ Items

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DO_NOT_SHOW

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ii) Paints should be procured by the yard on behalf of DCI. (Actual Cost of Paints + 10% will be paid by DCI). Original documents/proof of payment to be provided as proof for reimbursement by DCI , latest class regulations to be complied for certification

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iii) Total cost (estimate) of paint is to be indicated separately (Original Paint procurement Vouchers /proof of payment docs are required to produce for actual Quantity of paint consumption, for settlement of Yard's Invoice). (Note: Quoted Paint Cost will not be considered for evaluation of Tenders for arriving L-1 bidder.)

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iv) Only Tin free antifouling SPC is acceptable.

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a) i) Hard scrapping marine growth (under water area) upto light load line including sea chest, bow tunnels and kort nozzles

500

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b) Copper slag hard sweeping / blasting to SA 1.0

500

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c) High pressure water washing (150 bars) to remove barnacles and Sea growths.

1000

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d)  Water washing ordinary (after primer) including all decks & accommodation. *** LP washing in Deck & accomodation area will be charged extra

1000

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e) Painting of under water area

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 i) Touch up spot blasted areas with Epoxy Primer at 50 Mic. DFT

100

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ii)  Apply Tar Free Epoxy at 125 Mic. Dft at spot blasted areas only.

100

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iii) Apply Tar Free Tie coat 125 Mic. Dft

100

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iv)   Apply Two coats of SPC. A/F of 125 Mic. Dft. Each Total 250 Mic DFT.

200

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f) Surface preparation

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i) Chipping

400

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ii) Power brushing

400

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iii) Sander discing

400

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iv) LP washing (2 Time)

850

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Sea Chests, Bow Tunnels and sea water lines

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Scraping

330

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DECANTATION TANKS (E/ROOM): Capacity : 53 cu.m.& 63 cu.m

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a)   Bailing out water,removing mud, muck etc.and dispose off ashore & making tank ready for Surveyor’s inspection.

20

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Removing mud and muck & other debris/ stones etc from inside hopper , hopper bulkheads bottom doors & its surrounding areas, bottom door opening, scrapping, mud / muck, dumping same to shore dust bin and hosing down for inspection

150

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Cost of Paints.

1

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GROUP C : STEEL PLATE RENEWAL :

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Ultrasonic tthickness gauging of ship’s hull,decks, tanks, other steel structures, sea chests, filter casing, valve stub pipes, tank top platings, main sea water interconnection pipes in the central keelson, Dredging pipes in the pumproom, on the deck, suction pipes, overflowduct, centre keelson including pipelines passing through central keelson,hopper bulk heads, jet pipes, stub pipes, deep loading pipes,manifolds etc., and other areas as required. Submitting drawing in triplicate, indicating the areas to be renewed as per IRS Rules & Shipstaff instructions.

2000

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Steel Plate (5 mm to 28 mm thickness) including associated beams, angles,channels, bulwarks, flats, bars, rods, stiffeners, trays and other steel structures etc., which are thinned down / wasted as per UTG report and marked by the ship staff / surveyors are to be renewed upto the satisfaction of ship staff / IRS . preparatory works and with application of one coat of primer on steel plates. All plates must confirm to Llyods Grade "A" Steel. Hopper coaming deck (Steel grade : DH36 & thickness = 28 mm -as per drawing). (Consider specific weight of steel @ 7.85 gms/Cu. Cm.)

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Steel plates renewal includes associated beams, angles, stiffeners, etc., which are wasted as per UTG report and as marked by Ship staff, or by Surveyor. The rate must be inclusive of staging, preparatory works and with application of one coat of primer on steel plates. All plates must conform to Lloyds’ Grade “A” Steel. (consider Specific Weight of steel 7.85 gms / cub.cm).

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Shell plate below water level

5

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Staging & scafoldings for the current package

1

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Building up the pitted spots on Hull plates/ plates/ wasted welding areas on steel plates (at various locations) by low hydrogen electrodes (yard supply) and levelling by grinding.

50

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i) Repair welding joint by gouging, grinding and welding with MS electrodes – minimum 3 runs.

50

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ii) Building up by MS welding electrodes on the pitted spots of plates / wasted welding areas and levelling by grinding

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a) For welding of Spot Size - 25 X 25 mm -20 Spots

10

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b) For welding of Spot Size - 50 X 50 mm - 20 Spots

10

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