Providing and fixing Road Side Crash Barrier

7) The Scope of works which are not included in any specific items but indicated in the document "General Scope of all works" shall be within the scope of overall contract works. The cost of work/item/material indicated in this document shall be deemed to be included in the quoted rates of all individual items. 8) The quoted rates shall include necessary royalties, seigneiorage charges,etc. and all other charges to supply all the required construction materials. 9) For all standards and code of practices, specifications, like Indian Standard, MORT&H, ASTM, etc. refer only latest revisions including all applicable amendments, revisions and additional publications (during contract period) and these have to be followed. 10)Prior approval for source of all construction materials by submission of relavent test certificates, documents, invoices etc. have to be taken from BARC. 11) All the tests mentioned in Quality Assurance Plan(QAP) should be carried out without any extra cost. 12) The contractor has to submit all royalty /seigneiorage slips,etc for all the naturally available construction materials before submitting the RA bills.

TYPE A, METAL BEAM CRASH BARRIER "W" SHAPE "Providing and erecting a W-beam metal crash barriers (single-sided) following MoRTH specifications requiring 3mm thick cold-rolled steel rails (corrugated profile), at or above 730± 25mm from road/ ground level, fixed on ISMC Series Channel 150mm x 75mm x 5mm Vertical ISMC Post spaced at 2.0m centre to centre having 1.80m height with a spacer channel of 330mm long with all fittings and all parts (W beam section, channels, nuts & bolts, washers) to be galvanised by hot dip process. The work includes embedding the post to minimum 1100mm depth below ground in concrete of minimum M30 grade , all leads and lifts etc. complete as per drawing , specification and direction of Engineer-In-charge.The material brought shall be approved by BARC(V). The cost of work excludes concreting and boring which will be paid under relevant items all as per MORTH & IRC: 119. Technical Specifications and Drawings shall be followed as mentioned in IRC:119 & MORTH.

Key Technical Specifications (MoRTH) for the above item: W-Beam Element: 4318mm overall length (4000mm effective), 311-312mm width, 83mm corrugation depth, 3mm thickness (2.5mm options exist) with a 550 g/sqm hot-dip galvanized coating designed to meet a minimum yield strength of 245 MPa. Posts Channels: 150mm x 75mm x 5mm thick cold-rolled section. Post length is 1800mm. Spacer Channels : 150mm x 75mm x 5mm thick cold-rolled section. length is 300mm. Material Grades: Steel typically conforms to IS:5986/IS:2062/IS:10748 (Grades Fe360/Fe410/Fe510). Fasteners: Hexagonal or button-headed bolts with nuts/washers (M16 x P2.5) as per IS:1364/IS:1367. Performance: Designed to absorb energy and contain vehicles, These barriers are used on road edges and median barriers as per MoRTH and guidelines to prevent vehicles from leaving the road or crossing into oncoming lanes."

Reflectors for Crash Barriers : (provide perfect traffic guidance, making roads safer. The reflectors are visible over a great distance, making the course of the road clearly visible. Especially in poor visibility in the dark, these crash barrier reflectors contribute to increasing road safety). Double-sided reflector (Orange) For mounting on guide rail / guard rail Galvanized steel housing Prismatic reflectors, make its reflective lightness Reflectors are firmly stuck to the bracket by rivet Especially UV coated on the lens can bear against ultra violet ray Dimensions: 120 x 50 x 70 mm Reflection capacity: 600 mcd/lux Reflection range: 0-40 degrees