Repairing and painting of STG SWAS room and EDG building at Tripura Gas Based Power Station NEEPCO Ltd Monarchak Tripura

Items

Providing and fixing double scaffolding system (cup lock type) on the exterior side, up to seven story height made with 40 mm dia M.S. tube 1.5 m centre to centre, horizontal & vertical tubes joining with cup & lock system with M.S. tubes, M.S. tube challies, M.S. clamps and M.S. staircase system in the scaffolding for working platform etc. and maintaining it in a serviceable condition for the required duration as approved and removing it there after .The scaffolding system shall be stiffened with bracings, runners, connection with the building etc wherever required for inspection of work at required locations with essential safety features for the workmen etc. complete as per directions and approval of Engineerin-charge .The elevational area of the scaffolding shall be measured for payment purpose .The payment will be made once irrespective of duration of scaffolding. Note: - This item to be used for maintenance work judicially, necessary deduction for scaffolding in the existing item to be done.

Repairs to plaster of thickness 12 mm to 20 mm in patches of area 2.5 sqm and under including cutting the patch in proper shape and preparing and plastering the surface of the walls complete including disposal of rubbish to the dumping ground with all leads and lifts including finishing even and smooth and curing complete as per direction of the Engineer in charge:- With cement mortar 1:4 ( 1 cement : 4 fine sand ).

Finishing walls with acrylic smooth exterior paint of required shade of approved brand and manufacture : New work ( two or more coats applied @ 1.67 litre/10 sqm over and including priming coat of exterior primer applied @ 2.20 kg/10 sqm) (Paint options: Asian paint Apex Ultima Protek Advanced/ Berger Weathercoat Long Life 15/ Nerolac Excel Everlast 12 or equivalent. Primer options: Asian paint Damp Sheath Exterior Advanced/ Berger BP Cement Primer (ST)/Nerolac No Damp Primer or equivalent)

Applying one coat of water thinnable cement primer of approved brand and manufacturer on wall surface complete. Water thinnable cement primer. (Brand options: Asian paint Damp Sheath Advanced Interior/ Berger Silk Luxury Basecoat/ Nerolac No Damp Interior or equivalent )

Wall painting with acrylic plastic emulsion paint of approved brand and manufacture to give an even shade Two or more coats on new work. (Brand options: Asian paint Royal Shyne Advanced/ Berger Silk Glamor Matt/ Nerolac Impression Kashmir High sheen or equivalent.)

Painting with synthetic enamel paint of approved brand and manufacture of required colour to give an even shade: Two or more coats on new work over an under coat of suitable shade with ordinary paint (primer) of approved brand and manufacture. (Brand options: Asian Paints Apcolite Premium Emulsion/ Berger Luxol Hi Gloss Enamel/ Nerolac NSE Oxford Blue Enamel)

Supply & installation of pre-painted Galvalume sheets for roofing/cladding (size, shape and pitch of corrugation as approved by Engineer-in-charge) in 550mpa steel grade, made out of Cold Rolled Steel coated with Zinc-Aluminium alloy coating of 43.5% Zn, 55% Al and 1.5% Silicon confirming to ASTM A792/A792M and AS1397, Alloy coating AZ150/AZ70, colour coated with high quality Polyester coating, top coated of modified polyester of 20 micron, back side coat of 5 micron, having epoxy primer coat of 5 micron on both side. Sheet should have protective guard film of 25 microns minimum to avoid scratches while transportation and should be supplied in single length upto 12 metre or as desired by Engineer-in charge. The sheet shall be fixed using self drilling /self tapping screws of size (5.5x 55mm) with EPDM washers filled with white lead complete upto any pitch in horizontal/ vertical or curved surfaces excluding the cost of purlins, rafters and trusses and including cutting to size and shape wherever required and as per direction of Engineer-in-charge 0.50mm thickness

Renewal of old putty of glass panes (length).

Renewing glass panes, with putty and nails wherever necessary including racking out the old putty: Float glass panes of thickness 4 mm

Providing and fixing glazing of approved quality in aluminium doors, windows, ventilator, shutters and partition etc. with EPDM rubber / neoprene gasket etc. complete as per architectural drawing and the direction of Engineer-in-charge (Cost of snap beading shall be paid in basic item) : With float glass panes of 4.0 mm thickness ( weight not less than 10.0 kg / sqm )

Providing and laying in position cement concrete of specified grade excluding the cost of centring and shuttering --All work upto plinth level: 1:1½:3 ( 1 Cement: 1½ fine sand : 3 graded stone aggregate 20 mm nominal size)

Providing and fixing plain Multipurpose Cement board (High Pressure steam cured) as per IS : 14862 : 2000 with suitable screws for fibre cement board in ceiling etc .complete Including frame Work

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