Grading concrete to the terrace in the Office of the Deputy Director Fisheries, Department of Fisheries and Fishermen Welfare at Beach road, Karaikal.

Amount

White washing with lime to give an even shade - new work (three or more coats)

Demolishing lime concrete manually / by mechanical means and disposal of material within 50 metres

Dismantling tile work in floors and roofs laid in cement mortar including stacking material within 50 metres lead - for thickness of tiles 10mm to 25mm

Grading roof for water proofing treatment with - Cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size)

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 - 50 mm average thickness

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 - 25 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 - Bars upto 12mm diameter

Providing , mixing and applying bonding coat of approved adhesive on chipped portion of RCC as per specifications and 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 graded coarse sand with polymer minimum 2% by wt.of cement used) as per specifications . Note: Measurement and Payment : The Pre-meaurement 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 crusing strength at the end of 28 days to be not less than 30 N / Sqmm) - 25 mm average thickness in two layers

Providing , mixing and applying SBR polymer (of approved make) modified Cement mortar in proportion of 1:4 (1 cement : 4 graded coarse sand with polymer minimum 2% by wt.of cement used) as per specifications . Note: Measurement and Payment : The Pre-meaurement 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 crusing strength at the end of 28 days to be not less than 30 N / Sqmm) - 50 mm average thickness in two layers

Applying of multisurface Nano-scaling system with organosilane based reactive water proofing agent (Zycosil plus or equivalent) nano sealer duly mixed with (Acrylic based sealing bonding admixture (Zyco prime or equivalent) mixed in the proportion as recommended by the manufacturer with potable water (<1000ppm) on the prepared surface of masonry /concrete. The rate to include the cost of preparing the surface by chipping, cleaning the buldged / loose concrete / mortar removing smooth by sand paper / stone and fanning / blowing the solution in manufacture's recommended proportion and applying on the surface directed by the Engineer-in-charge.

M.SENTHILRAJARAJAN