Internal and external panting, replacement of damaged GI sheet roofing and other associated civil works at A and B staff quarters, CSIR-CLRI, Adyar, Chennai-600020

Amount

Civil Part

Repair to plaster of thickness 12mm to 20 mm in required area of all sizes, including cutting the patch in proper shape, raking out joints and preparing plastering the wall surface with Readymade polymer modified non Shrinking self curing mortar, including disposal of rubbish, all complete as per the direction of Engineer-In-Charge. "(Make: Fosrac - Rendrerac S2 or equivalent )"

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. 50 mm 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

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. 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

Providing, mixing and applying SBR polymer (of approved make) modified Cement mortar in proportion of 1:4 (1 cement: 4 sieved river 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.

Filling the gap in between aluminium/ stone/ wood frame and adjacent RCC/Brick/ Stone/ wood/ Ceramic/ Gypsum work by providing weather/structural non sag elastomeric PU sealant (Polyurethane sealant) over backer rod of approved quality as per architectural drawings and direction of Engineer-in-charge complete, complying ISO11600:2002 (Make: " Fosroc Nitoseal PU40 " or Equivalent) Upto 5 mm depth and 5 mm width

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.

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

Wall painting with premium acrylic emulsion paint of interior grade, with roller finish (Make: " M/s. Asian Royale Shyne / Glitz /Aspira or M/s. Dulux Velvet Touch Pearl / Diamond Glow finish" or equivalent ) consists of silver ion technology, superior stain resistance, teflon surface protector, enhanced Anti-microbal formula as per EN ISO 22196:2007 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

Finishing walls with Premium Acrylic Smooth exterior paint with Silicone additives of required shade : (Make: M/s. "Asian Apex Ultima Protek" or equivalent) Old work (Two or more coats applied @ 1.43 ltr/ 10 sqm) over existing cement paint surface.

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.

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

French spirit polishing : One or more coats on old work.

Dismantling cement asbestos or galvalume sheet or other hard board ceiling or partition walls including stacking of serviceable materials and disposal of unserviceable materials to CLRI store.

Steel work in built up tubular (round, square or rectangular hollow tubes etc.) trusses etc., including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer, including welding and bolted with special shaped washers etc. complete. Hot finished welded type tubes

Painting with aluminium paint of approved brand and manufacture to give an even shade . Two or more coats on new work

Providing and fixing color coated/ pre-painted galvalume(Make: TATA / JSW / JINDAL or equilvaent) (Aluminium 55%, Znl 43.4% at SI-1.6%) profile sheets of approved design, minimum thickness of 0.5mm having yield strength of 550 MPA, coating mass of AZ 150 g/m2 including all complete as per ASTM - A792M (or) IS:277. The sheet shall be fixed using self drilling /self tapping screws of size (5.5 x 55 mm) with EPDM seal, 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.

Providing and fixing color coated/ pre-painted galvalume(Make: TATA / JSW / JINDAL or equilvaent) (Aluminium 55%, Znl 43.4% at SI-1.6%) profile sheets of approved design, minimum thickness of 0.5mm having yield strength of 550 MPA, coating mass of AZ 150 g/m2 including all complete as per ASTM - A792M (or) IS:277. The sheet shall be fixed using self drilling /self tapping screws of size (5.5 x 55 mm) with EPDM seal, complete upto any pitch in horizontal/ vertical or curved surfaces, Flashings/ Aprons.( Upto 600 mm).

JPS Constructions (BID ID -769442)

prabu company (BID ID -770010)