Department Of Atomic Energy Tender

Providing and applying Surface dressing on new surface in two coats with bitumen of grade VG -10 of approved quality using 1.8 kg of bitumen per sqm with 1.5 cum of stone chippings 13.2 mm nominal size per 100 sqm of road surface for first coat and 1.1 kg. of bitumen per sqm with 1.00 cu. metre of stone chippings 11.2 mm nominal size per 100 sqm of road surface for second coat, including consolidation of each coat separately with road roller of 6 to 8 tonne capacity etc. complete. as per specifications and as directed by the Engineer in charge.

Providing and laying premixed sand seal coat over prepared surface of road with bitumen heated in bitumen boiler using 128 kg of bitumen of grade VG - 10 and 0.60 cum of fine aggregate (passing 2.36 mm and retained on 180 micron sieve) per 100 sqm of road surface,including laying to line, gradient and camber, rolling and finishing with 8 to 10 tonne power road roller, spreading sand in finished surface all materials,manpower,machinery, tools and tackles transport etc. complete as per specifications and as directed by the Engineer. Note: Seal coat shall be laid immediately after laying of the premix carpet. Seal coat and premix carpet shall be rolled together. The combined thickness of the two layers shall not be less than sum of the two layers thickness obtainable by using the specified material quantities per square metre area. (Not less than 25mm combined consolidated thickness) Note: short trail of not less than 10 mtrs length shall be carried out to demonstrate the mix,fine tuning of the mix if required, the quantity of bitumen and mineral aggregates used to obtain desired thickness and quality etc., and a method statement developed and got approved by the Engineer in charge. Work shall be carried out based on the approved method statement with consistent quality.

Providing and applying tack coat On bituminous surface @ 0.50 Kg / sqm using hot straight run bitumen of grade VG - 10, including heating the bitumen, spraying the bitumen with mechanically operated spray unit fitted on bitumen boiler, cleaning and preparing the existing road surface as per specifications and as directed by the Engineer in Charge.