Public Works Department Tender

4.1.8:Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level:1:4:8 (1 cement : 4 coarse sand : 8 graded stone aggregate 40 nominal size)

4.1.3:Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level:1:2:4 (cement : 2 coarse sand (zone-III) : 4 graded stone aggregate 20 mm nominal size)

4.1.5:Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level:1:3:6 (1 cement : 3 coarse sand : 6 graded stone aggregate 20 mm nominal size)

13.1.1:12 mm cement plaster of mix:1:4 ( 1 cement : 4 fine sand)

14.1.2:Repairs to plaster of thickness 12 mm to 20 mm in patches of area 2.5 sq meters and under, including cutting the patch in proper shape, raking out joints and preparing and plastering the surface of the walls complete, including disposal of rubbish to the dumping ground within 50 meters lead:Cement mortar 1:4 ( 1 cement: 4 coarse sand)

26.28.2:Chipping of unsound/weak concrete material 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-Charge50mm average thickness

26.29.1:Cleaning of reinforcement from rust from the reinforcing bars to give it a total rust free steel surface by using alkaline chemical rust remover of approved make with paint brush and removing loose particles after 24 hours of its application with wire brush and thoroughly washing with water and allowing it to dry, all complete as per direction of Engineer-In-Charge.Bars upto 12 mm diameter

OD154320/2024-2025:Providing,mixing and applying anti-corrosive coating on reinforcement with epoxy zinc rich primer as per specification and direction of Engineer in charge.

26.31.2: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.Epoxy bonding adhesive having coverage 2.20 sqm/kg of approved make

26.32.1:Providing, mixing and applying SBR polymer (of approved make) modified Cement mortar in proportion of 1:4 (1 cement: 4 graded coarse sand with polymer minimum 2% by wt. of cement used) as per specifications and directions of Engineer-in-charge. Note: Measurement and payment: The pre-measurement of thickness shall be done just after the surface preparation is completed and Payment under this item shall be made only after proper wet curing has been done and surface has been satisfactorily evaluated by sounding / tapping with a blunt metal instrument and/or the 75mm size cube crushing strength at the end of 28 days to be not less than 30 N/Sqmm2).12 mm average thickness.

14.43:Removing white or colour wash by scrapping and sand papering and preparing the surface smooth including necessary repairs to scratches etc. complete.

13.80:Providing and applying white cement based putty of average thickness 1 mm, of approved brand and manufacturer, over the plastered wall surface to prepare the surface even and smooth complete.

13.85.3:Applying priming coats with primer of approved brand and manufacture, having low VOC ( Volatile Organic Compound) content.With water thinnable cement primer on walls surface having VOC content less than 50 grams / litre

14.66.1:Finish walls with Acryllic Smooth exterior paint of required shade:Old work ( Two or more coats applied @ 1.67 ltr/10 sqm) on existing cement paint surface

15.56:Dismantling old plaster or skirting raking out joints and cleaning the surface for plaster including disposal of rubbish to the dumping ground within 50 metres lead.

13.3.1:20 mm cement plaster of mix:1:4 (1 cement : 4 fine sand)

22.14.1:Grading roof for water proofing treatment with:Cement concrete 1:2:4 ( 1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size)

22.14.3:Grading roof for water proofing treatment with:Cement mortar 1:4 ( 1 cement : 4 coarse sand )

OD200577/2024-2025:Supplying and applying High build elastomeric waterproofing coating based on pure, hydrophobic polyurethane, cold applied of spray / brush applied, Poly Urethane membrane with an elongation of >350% and tensile strength of 4.7 N/mm2 as per ASTM D 2370, crack bridging ability of 3mm as per ASTM C1305, no leakage upto 5 bars of water pressure as per DIN 1048, SRI Index of 106 with UV resistance . Water proofing method consisting of applying (a) Surface preparation including cleaning work, removal of loose concrete and filling cracks with SBR based Polymer modified cement mortar. (b) Making of angle fillets all around the periphery of the wall with SBR polymer modified cement mortar and grouting the gaps of pipes with general purpose grout (non shrink cementatious wate proof grout) . (c) Laying and applying epoxy primer at the rate of 0.15kg/sqm. Epoxy primer should be dry and surface moisture should be less than 4% before PU application. (d) Laying Geo textile non woven fabric of 40gsm . (e)Applying Poly Urethene Water Proofing coating three coats with a consumption of 2.20kg/sqm over the epoxy primer applied surface.

50.14.1.2:Removing and refixing window shutters after necessary repairs for easy opening and closing etc complete as per the direction of site Engineer-in-charge

14.7.1:Renewing glass panes and re fixing existing wooden fillets: Float glass panes of nominal thickness 4 mm (weight not less than 10kg/sqm)

13.61.1:Painting with synthetic enamel paint of approved brand and manufacture to give an even shade:Two or more coats on new work