Rehabilitation of culvert at Km. 571/00 on NH-66 in the state of Goa (2nd Call).

Amount

Removal of existing cement concrete wearing coat including its disposal complete as per Technical specification without causing any detrimental effect to any part of the bridge structure and removal of dismantled material with all lifts and lead upto 1000m(Thickness 75 mm)

Providing and inserting nipples with approved fixing compound MC Fix ST of MC Bauchemie or Equivalent after drilling holes for grouting as per Technical specifications including subsequent cutting/removal and sealing of the hole as necessary of nipples after completion of grouting with Cement/Epoxy.

Guniting concrete surface with cement mortar applied with compressor after cleaning surface and spraying with epoxy (MC Dur 1250 & Accelerated compound Torkrethilfe BE of MC Bauchemie or Equivalent)complete as per Technical specification

Excavation for Structures (Earth work in excavation of foundation of structures as per drawing and technical specification, including setting out, construction of shoring and bracing, removal of stumps and other deleterious matter, dressing of sides and bottom and backfilling with approved material.) in Marshy soil upto 3 m depth by Manual means.

Dry rubble Flooring.

Plain/Reinforced cement concrete in open foundation complete as per drawing and technical specifications. PCC Grade M20.

Sealing of cracks/porous concrete by injection process through nipples/Grouting With Admixture MC Ein preshilf EH of MC Bauchemie or Equivalent)complete as per Technical specification. Cement mortar (1:1) Grouting.

Sealing of crack / porous concrete with Epoxy Grout (MC Dur 1264 of MC Bauchemie or Equivalent)by injection through nipples complete as per clause 2803.1.

Protective coating -Paint with Emce Colourflex of MC Bauchemie or Equivalent with a priming coat @100 g/m2 & main polymer coating thickness 200-225 microns @400-450 g/m2 for two coats with approved shades including cost of materials,cleaning ,preparing the surface,chipping,removing loose dirt with wire brush & water ,labour for filling holes,cracks,joints etc.with one component polymer modified fine repair & cosmetic mortar,labour for applying above coating,scaffolding charges etc with all taxes complete as per IRC SP:80 Clause 6.5.1 & clause 2808 of MORT& H specifications latest edition.

Supplying, fitting and placing HYSD bar reinforcement in super-structure complete as per drawing and technical specifications.

Construction of RCC railing of M30 Grade in-situ with 20 mm nominal size aggregate, true to line and grade, tolurence of vertical RCC post not to exceed 1 in 500, centre to centre spacing between vertical post not to exceed 2000 mm, leaving adequate space between vertical post for expansion, complete as per approved drawings and technical specifications.