Tender For Replacing Damaged Manhole Covers, Raising Of Manhole Covers Of Cable Ducts With Sfrc Reinforced Cement Concrete Covers In Trichur Ba For The Period 2023-24, Thrissur-Kerala
TDR : 41501967
Tender Notice
BOQ
Expired
Thrissur
Kerala
Tender For Replacing Damaged Manhole Covers, Raising Of Manhole Covers Of Cable Ducts With Sfrc Reinforced Cement Concrete Covers In Trichur Ba For The Period 2023-24
Name of Work: Replacingdamaged Manhole covers / raising of Manhole covers of cable ducts with SFRC Reinforced Cement Concrete covers in TRICHUR BA for the period 2023-24
Sl. No.
Item Description
1
Making, Supplying andLaying SFRC Reinforced Cement Concrete Manhole covers in Cable Duct Routes underTrichur Telecomareahaving the following specifications.
2
Manhole Cover shall be 900mm x 900mm Square in Shape and 140 mm thick . TheManhole Cover shall be 140 mm thickmade with fibre reinforced cement concrete of mix 1:1.5:3 ( 1 Cement : 1.5 coarse sand : 3 graded stone aggregate 20mm nominal size) with 0.50mm thick steel fibres (of approved quality and make) and 2 layers of 16mm dia thermo-mechanically treatedBars spaced at an interval of 120 mm centre to centre in both directions in a caged manner (stirrup form) at top and bottom .The quantity of steel fibres used in concrete shall be not less than 5 kg per cover. The edges of the Manhole cover on top portion of the slab shall be provided with Steel Angle 65x65x6 mm painted with two coats of epoxy paint over priming coat of red oxide zinc chromate primer .The Cover shall be engraved with the Name \" BSNL \" on top andthe cover should have lifting facility with chainand hook arrangementfor which a hole of 50 mm dia should be provided at the centrethroughout the thickness of themanhole covers .
3
Fixing the Manhole covers in position on roads , above the Manhole openings with plain cement concrete of 1:1.50 :3( 1 cement : 1.50 Coarse Sand : 3 Graded Stone Aggregate 20mm nominal size ) for an average width of 10 centimetres and 140mm thickness around the periphery of the Manhole cover after chipping away the old bituminous portion / concrete / old frames if any beforelaying the cover .Necessary Protection shall be given during traffic with necessary caution sign , ribbons ,and barricading.The debris , demolished materials if any shall be disposed in approved dumping grounds within a lead of 5 Kms . ( The rate is inclusive of all materials ,protective measures to be taken in traffic and all labour charges involved in the above operationandnothing extra shall be paid on any account.) The work shall be carried out as per the direction and instructions of the Engineer-in-charge and nothing Extra shall be paid on any account.
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