Name of Work: Waterproofing treatment and associated civil works to TE Building Thoubal,Manipur
Sl. No.
Item Description
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Providing and laying APP (Atactic Polypropylene Polymer) modified prefabricated five layer 3 mm thick water proofing membrane, black finished reinforced with non-woven polyester matt consisting of a coat of bitumen primer for bitumen membrane @ 0.40 litre/sqm by the same membrane manufacture of density at 25°C, 0.87-0.89 kg/ litre and viscocity 70-160 cps. Over the primer coat the layer of membrane shall be laid using Butane Torch and sealing all joints etc, and preparing the surface complete.
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The vital physical and chemical parameters of the membrane shall be as under : Joint strength in longitudinal and transverse direction at 23°C as 650/ 450N/ 5cm. Tear strength in longitudinal and transverse direction as 300/250N. Softening point of membrane not less than 150°C. Cold flexibility shall be upto -2°C when tested in accordance with ASTM, D - 5147. The laying of membrane shall be got done through the authorised applicator of the manufacturer of membrane :
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(a) 3 mm thick
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Providing and fixing on wall face unplasticised Rigid PVC rain water pipes conforming to IS : 13592 Type A, including jointing with seal ring conforming to IS : 5382, leaving 10 mm gap for thermal expansion,
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(i)Single socketed pipes.
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(a) 75 mm diameter
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(b) 110 mm diameter
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Providing and fixing on wall face unplasticised - PVC moulded fittings/ accessories for unplasticised Rigid PVC rain water pipes conforming to IS : 13592 Type A including jointing with seal ring conforming to IS :5382 leaving 10 mm gap for thermal expansion.
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(a) Single tee with door
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(i) 110x110x110 mm
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(b) Single tee without door
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(i) 75x75x75 mm
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(ii) 110x110x110 mm
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(c )Bend 87.5°
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(i) 110 mm bend
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(d) Shoe (Plain)
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(i) 110 mm Shoe
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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 directions of Engineer-In-Charge.
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(a) With cement mortar 1:4 (1 cement : 4 fine sand).
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Filling cracks in wall surface plaster with Elastomeric Acrylic Crack Filler, readymade paste having auto-suction, impermeable & non-shrink property (Polyfill-AR of Sunanda chemical or equivalent) defining the crack with sharp pointed tool/ power cutter etc., to make it 6 to 8mm-wide & 6mm deep, cleaning mortar dust/ algae etc. with water spray & brush including applying second course of the crack filler wherever required to make up depression formed after first course for all leads and lifts complete all as per directed by Engineer-in-Charge
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(Note: The entire wall treated with crack filler shall have to be got approved before commencement of painting or other treatment on wall surface)
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