Replacement of Retro Reflective signage and other accessories for road network for NITB at Raja Bhoj Airport, Bhopal

Amount

Earthwork in Excavation by mechanical means (Hydraulic excavator) / manual means in foundation trenches or drains (not exceeding 1.5m in width or 10 sqm on plan) including dressing of sides and ramming of bottoms, lift upto 1.5m, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50M : All kinds of soil.

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering-All work up to plinth level: 1:2:4 (1 cement: 2 coarse sand: 4 graded stone aggregate 20mm nominal size).

Structural steel work riveted or bolted in built up sections, trusses and framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete.

Painting with synthetic enamel paint of approved brand and manufacture to give an even shade: Two or more coats on new work.

Dismantling of old Sign board of Aluminium or ACM sheet, including riveting without damaging the MS structure including stacking the boards in AAI store complete.

Providing and fixing of retro reflectice sign face with Type XI retro reflective sheeting of micro prismatic Grade confirming to IRC- 67: 2012 and Type XI standard of ASTM D-4956-09 with ten Year Warranty from the original manufacturer and certified copy of three year Outdoor Exposure Report from an independent Test Lab for the product, pasted on 4mm thick ACP/ ACM. Inks used for printing letters/ legends/ directions/ theme shall be certified for low volatile organic compound (VOC) emission conforming to UL 2801 standards (Standard for Sustiainability of printing inks).

The “Aluminum-backed flexible prismatic (‘AFP’)” sheeting shall consist of Yellow colored flexible prismatic sheeting with non-metallic prismatic lens as Retroreflective elements and conforming to ASTM D 4956-09 Type VI specification for rebound able Retroreflective sheeting. This flexible prismatic sheeting shall be of 1ft width and laminated at the back with a 50 micron Aluminum (Al) foil with pressure sensitive adhesive and liner. Further, this flexible prismatic sheeting shall have screen printed arrow/slant line pattern in black color in a continuous roll format. Neither AFP sheeting nor the flexible prismatic sheeting used in it shall crack when slowly bent in 1 second time around a 1/8th inch mandrel after being conditioned for 24hrs at 0°C and tested as per section S2.2.2. of ASTM D 4956-09. The AFP sheeting, with the liner removed, shall be applied with a neoprene contact adhesive with a Polychloroprene as base, viscosity of 200-450 cps and solid content of 20-30%. Once applied, the edges of the product shall be sealed all around with a two-part epoxy based structural adhesive and shall be extremely resistant to peel-off. A test report from institutes like ARAI/CRRI confirming to above mentioned flexibility and ASTM-D4956-09 Type-VI retro reflectivity performance of the flexible prismatic sheeting used in AFP shall be submitted by the tenderer during prequalification and supply of material.

Supplying & Fixing of Molded Shank Raised Pavement Markers made of polycarbonate and ABS moulded body and reflective panels with micro prismatic lens capable of providing total internal reflection of the light entering the lens face and shall support a load of 16000 kg tested in accordance to ASTM D 4280 Type H and complying to Specifications of Category A of MORTH Circular No RW/NH/33023/10-97 – DO III Dt 11.06. 1997. The height, width and length shall not exceed 50 mm, 100 mm and 102 +/- 2 mm and with minimum reflective area of 13 Sqcm on each side and the slope to the base shall be 35 +/- 5 degree. The strength of detachment of the integrated cylindrical shanks, (of diameter not less than 19 +/- 2 mm and height not less than 30+/- 2 mm) 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.

Supply & Installation of Solar Raised Pavement Markers made of polycarbonate molded body with circular shape, solar powered, LED self illumination in active mode, 360 degree illumination and reflective panels with micro prismatic lens capable of providing total internal reflection of the light entering the lens face in passive mode. The marker shall support a load of 20000 kg tested in accordance to ASTM D 4280. The marker should be resistant to dust and water ingress according to IP 65 standards and should withstand temperatures in the range of 0 C to 70 C. Color of lighting could be provided in red or yellow (amber) as per requirement and typical frequency of blinking is 1 Hz. There should be current losses of less than 20 micro-amperes at 2.4 V in sleep-charging mode to enhance the life of the marker and a full charge should provide for a minimum autonomy of 50 hours. The height, width and length of the marker shall not be less than 10 mm x 100 mm x 100 mm. Also, the surface diameter of the marker shall not be less than 100 mm respectively. The weight of the marker shall not exceed 0.5 Kilograms. 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.

Providing and Fixing of Flexible Median Markers made from a combination of, tough high resistant engineering thermoplastic material with U shape structure and rebound/bounce back property having edge sealed florescent yellow color retro reflective Type XI sheeting on its both sides with minimum exposed reflective area 75 sqcm conforming to IRC 67 2012 and ASTM D4956-11

Supplying and installation of delineators (road way indicators), as per MORT&H Clause 806. The structure shall be made in roll forming process having height of 80-100 cm high above the ground level, width not less than 100mm and shall extend not more than 300mm below the ground while being installed, buried or pressed in to the ground in confirmation with IRC:79: 2019, are as directed by the Engineer painted black with powder coat of minimum 40 microns thickness for protection against corrosion, on top of which Type XI retro reflecting sheeting shall be pasted on both sides complying to IRC:79:2019. The delineater should consist of minimum retro reflective unit exposed area of 330 Sq.cm white color, full cube corner micro prismatic nonmetallic retro reflective sheeting on each side confirming with IRC 67:2012 and meeting the coefficient of retro reflecting value as per ASTM D 4956 Type XI table specification. The delineater shall have grooves asross the lenth to make the reflective sheets vandal-proof.

Vinayak Infra Signs and Projects Pvt Ltd

POSHDECOR