External painting and rehabilitation of damaged structural elements of main building and lab corridor at CSIR-CMERI, Institute campus, Durgapur-9

Amount

Application and finishing wall with water proofing cement base paint used to fill minute undulations, having excellent opacity and whiteness, does not chalk and dose not require curing with water of required shade in walls of existing structure of main building. (One coat applied @ 1 kg/65 sqft) including sand paper, brush, scafolding etc. all complete.

Application and finishing wall with exterior paint of required shade: (Two coats applied @ 1.67 ltr/10 sqm with 10 years durability warranty, 05 years waterproofing warranty, easy to clean rust dirt streaks effective barrier against water penetration, higher elongation, unique bridging ability up to 2mm, excellent CO2 diffusion (carbonation resistance), preventing corrosion of rebar within the concrete with structural protection. The paint should confirm internal VOC specification. over and including priming coat of exterior primer with excellent opacity and whiteness, improves appearance of top coat, does not chalk and can be applied on adequately cured fresh plaster, does not require curing with water provides excellent adhesion top coat emulsion, prevents peeling off of top coat emulsions applied @ 120 sqft /ltr.) in walls of existing structure of main building including sand paper, brush, scafolding etc. all complete.

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-Charge: 25mm average thickness

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

Drilling suitable holes in reinforced or plain cement concrete with power driven drill machine to a minimum depth of 100mm upto 200mm in RCC beams, lintels, columns and slabs to introduce steel bars for sunshades/balconies including fixing the steel bars in position using epoxy resin anchor grout of approved make but excluding the cost of reinforcement, all complete as per direction of Engineer-In-Charge: Upto and including 12mm dia.

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

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: 25 mm average thickness in 2 layers. 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 the 75mm size cube crushing strength at the end of 28 days to be not less than 30 N/Sqmm2).

Providing and injecting approved grout in proportion recommended by the manufacturer into cracks/honey-comb area of concrete/masonry by suitable gun/pump at required pressure including cutting of nipples after curing etc. complete as per directions of Engineer-in Charge: Epoxy injection grout in concrete/RCC work of approved make. (The payment shall be made on the basis of actual weight of approved grout injected.)

Providing and fixing hard drawn steel wire fabric of size 75 x25 mm mesh or other suitable size wire mesh to be fixed & firmly anchored to the concrete surface by means of "L" shaped mild steel shear key welded with existing reinforcement including the cost of materials, labour, tool & plants as approved by Engineer-in-charge.

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

Centering & shuttering including strutting, propping etc & removal of form for lintels, beams, cantilevers etc.

MITU ENTERPRISE

CHAKRABORTY TRADERS

M/s. S.D. Enterprise

BLUE FLASH

S S Enterprise