Repairing of cracks, internal painting of various rooms and other associated civil works at Guest House, CSIR-CLRI, Adyar, Chennai-600020

Amount

Civil Part

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, all complete as per direction of Engineer-in-Charge. With cement mortar 1:4 (1 cement : 4 fine sand)

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

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 (1 cement : 2 coarse sand(zone-III) : 4 graded stone aggregate 20 mm nominal size)

Removing dry or oil bound distemper, water proofing cement paint, interior emulsion paint and the like by scrapping, sand papering and preparing the surface smooth including necessary repairs to scratches etc. complete.

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 Health shield" or "Asian Aspira") 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

Painting with synthetic enamel paint of approved brand andmanufacture of required colour to give an even shade : One or more coats on old work

Filling the gap in between existing masonry wall surfaces / 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 ") Upto 10 mm depth and 10 mm width

Providing and fixing double scaffolding system (cup lock type) up to seven story height made with 40 mm dia M.S. tube 1.5 m centre to centre, horizontal & vertical tubes joining with cup & lock system with M.S. tubes, M.S. tube challies, M.S. clamps and M.S. staircase system in the scaffolding for working platform etc. and maintaining it in a serviceable condition for the required duration as approved and removing it there after .The scaffolding system shall be stiffened with bracings, runners,connection with the building etc wherever required for inspection of work at required locations with essential safety features for the workmen etc. complete as per directions and approval of Engineerin- charge .The elevational area of the scaffolding shall be measured for payment purpose .The payment will be made once irrespective of duration of scaffolding. Note: - This item to be used for maintenance work judicially, necessary deduction for scaffolding in the existing item to be done.

Sealing of existing cracks at brick masonry wall/ RCC surface by using epoxy injection grouting work includes supply and grouting of epoxy resin Conbextra EP10 (Make: " Fosroc chemical " propotion as per the manufacturer`s specification) in all the cracked areas after making necessary surface preparation by cleaning the surface thoroughly and removing all the existing dirt particles completely and cleaning the surface with jet of water. Making and injection of grout using mechanical grouting pumps and with GI NRV packers for epoxy grouting. Work includes complete all as required including miscellaneous / patch repair works at site Complete in all leads and lifts, machineries involved and all miscellaneous items, Highly skilled labour involved and inclusive fixing of packers with Nitomortar S / Lokfix (as per the manufacturer`s specification etc.;) complete all as required to suit site conditions and all as per the manufacturer`s specifications and all as directed by the Engineer-In-Charge.

Providing and applying fibre reinforced elastomeric liquid waterproofing membrane coating with resilient acrylic polyurethane having sun reflectivity index of 106 on top of concrete roof by using Nitoproof 725 (Make: " Fosroc chemical " with dry film thickness of complete application/system not less than 800micron / as per the manufacturer`s requirement) in two or more coats over the existing screed concrete/Mangalore tiles roofing surface after making surface preparation neatly cleaning with wire brush, removing of dirt, cleaning the surface with jet of water, etc; by making the surface even for making the water proofing treatment. After preparing the surface preparation, work inclusive of one or more coats of priming using Nitoproof AW (Make: " Fosroc chemical " with dilution with water in the ratio of 1:1 / as per the manufacturer`s requirement) mixed with water and cement.Complete in all leads and lifts, machineries and all miscellaneous items, Highly skilled labour involved etc.; all as required to suit site conditions and complete all as per the manufacturer`s specification and all as directed by the Engineer-in-charge.

B MURUGESAN