Repairs of Institute buildings at CSIR-NIO Dona Paula Goa

Amount

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

18 mm cement plaster in two coats under layer 12 mm thick cement plaster 1:5 (1 cement : 5 coarse sand) and a top layer 6 mm thick cement plaster 1:3 (1 cement : 3 coarse sand) finished rough with sponge.

Extra for providing and mixing water proofing material in cement plaster work in proportion recommended by the manufacturers

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 of below & above 12 mm diameter

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). 25 mm average thickness in 2 layers.

Providing, mixing and applying bonding coat of approved adhesiveb on chipped portion of RCC as per specifications and direction of Engineer-In-charge complete in all respect. SBR Polymer (@10% of cement weight) modified cementitious bond coat @ 2.2 kg cement per sqm of surface area mixed with specified proportion of approved polymer

Application of anticorrosive primer.Providing & applying 2 coats of a two component zinc rich anticorrosive primer Nitozinc primer of Fosroc chemicals (India) Pvt Ltd or equivalent containing at least 90% of Zinc and giving a dry film thickness of atleast 40 micron to the reinforcement bars.The primer should be applied according to the manufacturer instruction and as per direction of the Engineer-Incharge.Special care should be taken to apply Nitozinc primer behind the bars.The cost is inclusive of materials, scaffolding, labour, painting brush etc complete

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete above plinth level.Thermo-Mechanically Treated bars of grade Fe-500D or more.

Painting with synthetic enamel paint of approved brand and manufacture of required colour to give an even shade One or more coats on old work. Applying priming coat with ready mixed red oxide zinc chromate primer of approved brand and manufacture on steel galvanised iron/ steel works

Wall painting with acrylic emulsion paint, having VOC (Volatile Organic Compound ) content less than 50 grams/ litre, of approved brand and manufacture, including applying additional coats wherever required, to achieve even shade and colour.Two coats

Providing and applying of two coats of anticorrosive bitumastic paint over one coat of yellow zinc chromate primer for pathway roofing items between ITG to canteen to Engg section including scraping of the areas complete. The roofing support system consist of following items .Trusses-35 Nos of 5.5m of 2" GI pipes, Purlin-750Rmt of 11/2" GI pipes, Poles- 150Rmt of 4" GI pipes

Proving and applying of two coats of anticorrosive bitumastic paint over one coat of yellow zinc chromate primer for shed behind SBI including scraping of the areas complete. The roofing support system consist of following items: Rafters-18Rmt of 2" GI Pipes, Purlins- 50Rmt of 11/2" GI Pipes, Poles-35Rmt of 4" GI Pipes, Tubes-58Rmt of 2"x2" tube

Providing and applying of two coats of anticorrosive bitumastic paint over one coat of yellow zinc chromate primer for shed for Generator set including scraping of the areas complete. The roofing support system consist of following items: Trusses-5Nos of 7.5 m of 11/2" GI pipe,Purlins-60Rmt of 11/2"x11/2" GI pipe,Poles-60Rmt of 4" GI pipe

Providing and applying of two coats of anticorrosive bitumastic paint over one coat of yellow zinc chromate primer for pathway from GOD to PMN bldg including scraping of the areas complete. The roofing support system consist of the following items:Rafter-180Rmt of 4 x 11/2" GI pipe,Poles-32Rmt of 3"x3" GI pipe

Providing and applying of two coats of anticorrosive bitumastic paint over one coat of yellow zinc chromate primer for spiral staircase of COD including scraping of the areas complete. It consists of following items:Risers 18cms , Treads 28cms, total steps 56nos.Handrail pipe size of 13cms alround the staircase, Vertical support pole of 4inch size.Total height of staircase 11mts from GL and diameter of staircase is 66cms

Disposal of building rubbish / malba / similar unserviceable, dismantled or waste materials by mechanical means, including loading, transporting, unloading to approved municipal dumping ground or as approved by Engineer-in-charge, beyond 50 m initial lead, for all leads including all lifts involved

m sardar shah

SHIVANAGOUD S YALAWAR

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