The double corrugated beam is formed by continuous roll forming machine with an unfolded mild steel sheet(Coil) having the following dimensions / specifications :
1. Width = 483 mm (approx)
2. Thickness = 2.74 mm or 3.0 mm (approx based on project specs)
3. Specification for Guard Rail Systems – AASHTO standards
4. Specifications for Galvanizing — EN ISO 1461: 2009 / ASTM
Posts & Spacers are part of the set and are the items on which the w – beams are bolted to. They have the following dimensions / specifications:
1. Thickness = 6 mm (approx)
2. Size = 150 mm x 75 mm x 6 mm
3. Post Length = 1800 mm (approx)
4. Spacers Length = 350 mm (approx)
5. Specifications for Galvanizing — EN ISO 1461: 2009 / ASTM
Bolts, Nuts & Washers complete the set and are essentially used for bolting the parts to one another. They have the following dimensions & specifications :
1. Rectangular washers = 50 mm x 75 mm x 5mm
2. Button head bolts = M16 x 35 (with Nuts & Plain washers)
3. Button head bolts = M16 x 50 (with Nuts & Plain washers)
4. Material Condition – Hot Dip Galvanized
There are several accessories used in the Road Projects as part of the Guard Rails Systems. These are very essential components and are classified as under :
1. Fish Tail A
2. Fish Tail B
3. Fish Tail C
4. Fixed End Terminal (FET)
5. Fixed Object Attachment (FOA)
