WBPWD(R)/AE/SHSD/2/26-27/3

Dismantling of existing structures like culverts, bridges, retaining walls and other structure comprising of masonry, cement concrete, steel work, including T&P and scaffolding wherever necessary, sorting the dismantled material, disposal of unserviceable material and stacking the serviceable material with all lifts and lead of 1000 m as per Technical Specifications Clause 202 for Rural Roads of MORD. Cement Concrete by Manual Means.

Cleaning the exposed corroded Reinforcement as well as worn out concrete by sand blasting with air compressor including all materials , hire charges of machineries and abour etc. all complete as per technical specification anddirection of the Engineer-in-Charge.

Providing anti-corrosive protective coating to inhibit the corrosion to HYSD reinforcements including two coats of anti-corrosive coatings of consumption as per manufacturer's specification, cleaning etc. complete as per the direction of the Engineer-in-Charge

Guniting concrete surface with cement mortar (25 mm nominal thick) applied with compressor after cleaning surface and spraying with epoxy complete as per Technical specification.

Providing and inserting nipples with approved fixing compound 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.

Sealing of cracks / porous concrete by injection process through nipples/Grouting complete as per Technical specification. A Cement Grout

Ordinary cement concrete (mix 1:1.5:3) with graded stone chips 20mm. Nominal size.

Applying epoxy mortar ( 10 mm nominal thick) over leached, honey combed and spalled concrete surface and exposed steel reinforcement complete as per Technical specification

Epoxy bonding of new concrete to old concrete.

Priming one coat on timber or plastered surface with synthetic oil bound primer of approved quality including smoothening surfaces by sand papering etc.