Public Works Department Tender

Road Studs / Cat Eye: Providing and fixing of single mould twin shank reflective road studs of ‘category A’ Raised pavement markers made out of poly carbonate/ABS moulded body and reflective panels with micro prismatic lens capable of providing total internal reflection of the light entering the lens face with retro reflectance and chromaticity values shall be as given in the detailed specifications and the product shall conform to ASTM D4280. The raised pavement marker shall also meet all the testing conditions of ASTM D4280 and fixed to the road surface using the adhesive recommended by the manufacturer. Two cylindrical Polymer Shanks of not less than 20 mm diameter and not less than 30 mm length shall be molded in the RPM body. The reflective raised pavement markers shall also confirm to the MORTH circular No RW / NH. 33023/10/ 97-DO.III and the length ,height and width of the body shall not be less than 100 mm, 15 mm and 90 mm and base of marker shall be flat within 1.3 mm and outermost faces of configuration of marker shall not deviate more than 1.3 mm from a flat surface. The marker shall support a load of 13635 Kg tested in accordance with ASTM D4280. The marker shall withstand flexural strength of 909 kgf force in accordance with ASTM D4280. Marker lenses shall be moulded of Polycarbonate or methyl methecrylate conforming to ASTM D788. The area of each retro reflectory surface shall not be less than 13.0 sq.cm. The slope or retro – reflectory surface shall be 35 + 5 degree to base. Each reflector shall have a CIL not less than values specified in table 1 of MORTH Section 800 page no. 353 and should accompany two year warranty for satisfactory field performance from the

Providing and laying of hot applied thermoplastic compound of ISI Mark Approved Quality of 2.5 mm thick including reflectorising glass beads @ 250 gms per sqm area, as per IRC:35 .The finished surface to be level, uniform and free from streaks and holes.

Dry Lean Cement Concrete Sub- base (Construction of dry lean cement concrete Sub- base over a prepared sub-grade with coarse and fine aggregate conforming to IS: 383, the size of coarse aggregate not exceeding 25 mm, aggregate cement ratio not to exceed 15:1, aggregate gradation after blending to be as per table 600-1, cement content not to be less than 150 kg/ cum, optimum moisture content to be determined during trial length construction, concrete strength not to be less than 10 Mpa at 7 days, mixed in a batching plant, transported to site, laid with a paver with electronic sensor, compacting with 8-10 tonnesvibratory roller, finishing and curing.)etc complete as per instruction by engineer-in-charge .

Construction of Subgrade and Earthen Shoulders Construction of subgrade and earthen shoulders with approved material obtained from borrow pits with all lifts and leads, transporting to site, spreading, grading to required slope and compacted to meet requirement of Table 300.2 with lead upto 1000 m as per TechnicalSpecification Clause 303.1 etc complete as per instruction by engineer-in-charge .

Cement Concrete Pavement (Construction of un-reinforced, dowel jointed, plain cement concrete pavement over a prepared subbase with 43 grade cement @ 400 kg per cum, coarse and fine aggregate conforming to IS 383,maximum size of coarse aggregate not exceeding 25 mm, mixed in a batching and mixing plant asper approved mix design, transported to site, laid with a fixed form or slip form paver, spread,compacted and finished in a continuous operation including provision of contraction, expansion,construction and longitudinal joints, joint filler, separation membrane, sealant primer, joint sealant,debonding strip, dowel bar, tie rod, admixtures as approved, curing compound, finishing to lines and grades as per drawingetc complete as per instruction by engineer-in-charge .