WBKP/CP/NIT-494 / Thorough repairing and painting internal surface A side Barrack (Ground Floor and 4th Floor) Building at B T Lines Complex / TEN, Dated- 18.12.2025

Thorough repairing and painting internal surface A side Barrack (Ground floor and 4th Floor) Buiding at BT Line Complex, Kolkata 700002, during the year 2025-2026.

Stripping off worn out plaster and raking out joints of walls, celings etc. upto any height and in any floor including removing rubbish within a lead of 75m as directed.

Cleaning the concrete surface by removing dirt and debris, marking defective locations and removing loose concrete by careful stripping untill hard surface is exposed, cutting the concrete to regular shape, wire brushing the exposed surface and removing debris from site complete as per direction of the Engineer - in - Charge.

Cleaning the exposed reinforcement preferably upto full diameter by wire brush, applying two coats of polymer based rust removing compound left for 24 hours, removing the coating and then applying two (2) coats of polymer modified anti corrosive protective coating formulated to inhibit the corrosion of reinforcement as per manufacturer's specification][Mode of measurement:The affected surface area of reinforcement shall be considered for payment]

Applying epoxy based reactive joining agent for joining the old concrete with fresh concrete to be applied within manufacturer's specified time as per manufacturers specification. (0.4 Kg / m² of concrete surface).

Cement concrete (1:1.5:3) with graded stone chips 5.6 mm size with hexagonal square mesh wire netting, I.R.C. fabric mesh or X.P. M. fitted and fixed after tying the existing reinforcement on concrete without distributing the same and with proper scarping and cleaning the reinforcement and disturbed concrete with wire brush etc. after applying a coat of cement including the cost of wire netting I.R.C or X. P. M. & cost of all handling and scaffolding complete as per direction of Engineer-in -charge. a) 20 mm thick

Applying 2 coats of bonding agent with synthetic multi functional rubber emulsion having adhesive and water proofing properties by mixing with water in proportion (1 bonding agent : 4 water : 6 cement) as per Manufacturer's specification [Cement to be supplied by the Department]

Plaster (to wall, floor, ceiling etc.) with sand and cement mortar including round off or chamfering corners as directed and raking out joints including throating, nosing and drip course, scaffolding/staging where necessary (Ground floor).[Excluding cost of chipping over concrete surface] (iii) With 1:6 cement mortar (b) 15 mm thick plaster Ground floor

Plaster (to wall, floor, ceiling etc.) with sand and cement mortar including round off or chamfering corners as directed and raking out joints including throating, nosing and drip course, scaffolding/staging where necessary.[Excluding cost of chipping over concrete surface] (iii) With 1:6 cement mortar (b) 15 mm thick plaster 1st floor

Plaster (to wall, floor, ceiling etc.) with sand and cement mortar including round off or chamfering corners as directed and raking out joints including throating, nosing and drip course, scaffolding/staging where necessary.[Excluding cost of chipping over concrete surface] (iii) With 1:6 cement mortar (b) 15 mm thick plaster 2nd floor

Plaster (to wall, floor, ceiling etc.) with sand and cement mortar including round off or chamfering corners as directed and raking out joints including throating, nosing and drip course, scaffolding/staging where necessary.[Excluding cost of chipping over concrete surface] (iii) With 1:6 cement mortar (b) 15 mm thick plaster 3rd floor

Plaster (to wall, floor, ceiling etc.) with sand and cement mortar including round off or chamfering corners as directed and raking out joints including throating, nosing and drip course, scaffolding/staging where necessary.[Excluding cost of chipping over concrete surface] (iii) With 1:6 cement mortar (b) 15 mm thick plaster 4th floor

Plaster (to wall, floor, ceiling etc.) with sand and cement mortar including round off or chamfering corners as directed and raking out joints including throating, nosing and drip course, scaffolding/staging where necessary ().[Excluding cost of chipping over concrete surface] With 1:4 cement mortar (a) 10mm thick plaster Ground floor

Plaster (to wall, floor, ceiling etc.) with sand and cement mortar including round off or chamfering corners as directed and raking out joints including throating, nosing and drip course, scaffolding/staging where necessary ().[Excluding cost of chipping over concrete surface] With 1:4 cement mortar (a) 10mm thick plaster 1st floor

Plaster (to wall, floor, ceiling etc.) with sand and cement mortar including round off or chamfering corners as directed and raking out joints including throating, nosing and drip course, scaffolding/staging where necessary ().[Excluding cost of chipping over concrete surface] With 1:4 cement mortar (a) 10mm thick plaster 2nd floor

Plaster (to wall, floor, ceiling etc.) with sand and cement mortar including round off or chamfering corners as directed and raking out joints including throating, nosing and drip course, scaffolding/staging where necessary ().[Excluding cost of chipping over concrete surface] With 1:4 cement mortar (a) 10mm thick plaster 3rd floor

Plaster (to wall, floor, ceiling etc.) with sand and cement mortar including round off or chamfering corners as directed and raking out joints including throating, nosing and drip course, scaffolding/staging where necessary ().[Excluding cost of chipping over concrete surface] With 1:4 cement mortar (a) 10mm thick plaster 4th floor

(b) Rendering the surface of walls and ceiling with white cement based wall putty of approved make and brand(1.5mm thick)

Applying Interior grade Acrylic Primer of approved quality and brand on plastered or cencrete surface old or new surface to receive Distemper/ Acrylic emulsion paint including scraping and preparing the surface throughly, complete as per manufacturer's specification and as per direction of the EIC. (In Ground Floor

Applying Acrylic Emulsion Paint of approved make and brand on walls and ceiling including sand papering in intermediate coats including putty (to be done under specific instruction of Superintending Engineer) : (Two coats)ii) Luxury Quality

Priming one coat on timber or plastered surface with synthetic oil bound primer of approved quality including smoothening surfaces by sand papering etc.

(a) Priming one coat on steel or other metal surface with synthetic oil bound primer of approved quality including smoothening surfaces by sand papering etc.

Painting with best quality synthetic enamel paint of approved make and brand including smoothening surface by sand papering etc. including using of approved putty etc. on the surface, if necessary.(a) On timber or plastered surface :With super gloss (hi-gloss) -(iv) Two coats (with any shade except white)

(b) On steel or other metal surface(iv) Two coats (with any shade except white)

Taking out shutter of door and window, dismantling by parts (for repair or replacement of damaged parts) , reassembling and refitting and rehanging samewith old fittings but with new screws as necessary. (Where different parts of same shutter are renewed under different item, payment under item 73 will be made once only).

Styles and rails of wooden shutters fitted and fixed complete. (Payment to be made on area of new work only). In Ground Floor:(ii) 35mm Thick shutter.(c) Other Local Wood

Iron skeleton bolt of approved quality fitted and fixed complete (a) 375mm long x 10mm dia rod.

i) Iron hasp bolt of approved quality fitted and fixed complete (oxidised) with 16mm dia rod with centre bolt and round fitting(c) 300mm long

Iron butt hinges of approved quality fitted and fixed with steel screws, with ISI mark. Viii) 100mmx75mmx3.5mm

Supplying solid flush type doors of commercial quality, the timber frame consisting of top and bottom rails and side styles of well seasoned timber 65mm wide each and the entire frame fitted with 37.5mm wide battens places both ways in order to make the door of solid core and internal lipping with Garjan or similar wood veneers using phenol formaldehyde as glue etc. complete, including fitting, fixing shutters in position but excluding the cost of hinges and other fittings in ground floor (a) 35 mm thick shutters (single leaf)

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