Reconstruction of RCC Railing in P.S. Palayam minor bridge at P.S. Palayam Village in Puducherry

Amount

Demolishing R.C.C work manually / by mechanical means including stacking of steel bars and disposal of unserviceable material within 50 metres lead

Providing shear connectors suitable for 8mm to 12mm dia rods 100mm deep drilled at necessary places in concrete surface including drilling, cleaning the drilled holes with air blower to remove all dust and fixing the shear connectors in the drilled holes with thixotropic polyester KEYGROUT @ 0.022 Kg/hole mix 1:2 (One resign two powder) as per the specification of M/s. DON Construction chemical India Limited including all lead and lift etc. complete as directed by the Engineer-in-Charge the rate is excluding steel reinforcement.

Construction of RCC railing of M30 grade with a minimum cement content 407 kg / cum cast- in-situ with 20mm nominal size aggregate, true to line and grade, tolerance of vertical RCC post not to exceed 1 in 500, centre to centre spacing between vertical post not to exceed 2000mm, leaving adequate space between vertical post for expansion, complete as per approved drawings and technical specifications

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

Painting two coats after filling the surface with synthetic enamel paint in all shades on new plastered concrete surfaces.

Providing and fixing 2mm thick corrugated copper plate in expansion joint complete as per drawing and technical specifications

Providing two legged scaffolding using 15cm diameter blue - gum posts or casurina posts or best quality bamboo - posts of 4m over all length (3.0m height + 0.5 m projection + 0.5 into the ground) the distance between the two rows being 1.25 m and the spacing of posts with 0.5 m overlap on either side and braces to step up and providing a platform with country wood planks of 40mm thick and 1m width etc in a complete form using coir and nails 1 m run (Rate of scaffolding for a height of 3 m and lenghth of 1 m)

Exta for Providing two legged scaffolding for every additional height of 2.5 m (Rate for scaffolding for a height of 3 m and length of 1m)