Name of Work: Fixing of Roof and Side Sheets in LBF, IM Silo, Ball Mill Cum Day silo & Gypsum Shed at NTPC Korba FGD Site At 3x200MW + 3X500 MW + 1X500 MW Stage- I, II & II, NTPC Korba FGD Project, Chhattisgarh
Sl. No.
Item Description
1
Transportation of cladding sheets from BHEL storage yard to erection site and fixing of External sheet of Permanent colour coated metal cladding with troughed M.S. sheets of minimum 0.6mm bare metal thickness of grade G250 as per AS1397/grade SS255 as per ASTM A653M/ grade S250GD as per EN 10326 with zinc coating to class Z275/ aluminium zinc alloy coating to class AZ150 on both sides including fixing to supports / rails by concealed fixing system, corrosion resistant self tapping / self drilling type fasteners with suitable cap, flashing etc. all complete. The exposed face of the sheet shall be permanently coated with silicon modified polyster(SMP silicon content 30-50 pcnt) paint of 40 micron minimum DFT or super polyster paint of minimum 20 micron DFT on exposed surface over primer coat of minimum 5 micron(nominal) and minum 10 micron (nominal) SMP or super polyester paint over primer coat of minum 5 micron (nominal) on other face. SMP and polyster paint system shall be of industrial finish of product type 4 of AS/NZS2728. Fixing screw shall be agency scope. ( Sheets shall be provided free of cost by BHEL)
2
Transportation from BHEL Store and erection of 3mm thick translucent Polycarbonate sheet. (Payment shall be made on surface area of the sheet including flashings). Fixing screw shall be agency scope. (Sheets shall be provided free of cost by BHEL)
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