Tamil Nadu Road Development Company Limited Tender

Providing and laying of hot applied thermoplastic compound 2.5mm thick including reflectorising glass beads @ 250 gms per sqm area, thickness of 2.5mm exclusive of surface applied glass beads as per IRC:35. The finished surface to be level, uniform and free from streaks and holes etc. complete as per MoRTH specification no.803

Providing and fixing relective road studs of 'Category A' Raised pavement markers made out of poly carbonate / methyl methercrylate / ABS moulded body confirming to ASTM D 788 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 conforming to ASTM D4280. The reflective raised pavement markers shall also confirm to the MoRTH circular No RW / NH. 33023/10/97- DO.III dt 11.06.97. The height, width and length shall not be less than 15 mm, 90 mm and 100mm and with minimum reflective area of 13 Sq.cm on each side and the slope to the base shall be 35+/-5 degree. Each reflector shall have a CIL not less than values specified in Table 2 of said MORTH circular. The strength of detachment of the integrated cylindrical shanks. (of diameter not less than 19+/-2 mm and height not less than 30+/-2mm) from the body is to be a minimum value of 500 kgf. Fixing will be by drilling holes on the road for the shanks to go inside, without nails and using epoxy resin based adhesive as per manufacturer's recommendation and complete as directed by the engineer. The marker shall support a load of 13635 kg tested in accordance with ASTM D4280 and confirming to IRC 35-2015 guidelines and MORT&H specification 804 etc, complete.

Providing and fixing of median marker double sided made of polycarbonate for impact resistance and good weather ability. Polycarbonate used for molding the median marker shall have a minimum load impact strength value of 600 J/m at room temperature. The impact strength of the poly carbonate should not decrease to less than 70% of its initial value on being subjected to UV weathering as per ASTM G 155 for 1000 hours or exposure to 2 years of natural weathering. The body of the median marker shall be in the form of an isosceles trapezoidal structure of length 15 cm height and width of 10 x 10 cm. The median marker shall have fluorescent yellow retro - refelective sheeting confirming to Type XI specifications as per ASTM D 4956. Area of reflective sheeting should not be less than 70 cm2. Edge of retro reflective shall be concealed using a grill/mesh/similar mechanism to prevent vandalism and sheeting pilferage. The logo of the manufacturer shall be embosed and painted in contrasting colour on both side of median marker for distinct idenfification.