Name of Work:Repairing of roof at Terrace of T-III Staff Qtr Block in BSNL Compound Peernagar, Ghazipur OA under Varanasi BA
Sl. No.
Item Description
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Demolishing cement concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of Engineer - in - charge.
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a) Nominal concrete 1:3:6 or richer mix (i/c equivalent design mix)
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Providing and laying water proofing treatment on roofs of slabs by applying cement slurry mixed with water proofing cement compound consisting of applying:
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(a) after surface preparation, first layer of slurry of cement @ 0.488 kg/sqm mixed with water proofing cement compound @ 0.253 kg/sqm.
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(b) laying second layer of Fibre glass cloth when the first layer is still green. Overlaps of joints of fibre cloth should not be less than 10 cm.
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(c) Third layer of 1.5 mm thickness consisting of slurry of cement @ 1.289 kg/sqm mixed with water proofing cement compound @ 0.670 kg/sqm and coarse sand @ 1.289 kg/sqm. This will be allowed to air cure for 4 hours followed by water curing for 48 hours. The entire treatment will be taken upto 30 cm on parapet wall and tucked into groove in parapet all around.
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(d) fourth and final layer of brick tiling with cement mortar (which will be paid for separately.
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For the purpose of measurement the entire treated surface will be measured.
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