Specification Value Test Method
Penetration @25°C 35 IS 203
Absolute Viscosity @60°C, Poises 3200-4800 IS 1206
Kinematic Viscosity @60°C, Poises 400 IS 1206
Softening Point °C 50 IS 1205
Flash Point °C 220 IS 1448
Solubility in CS2 %wt. 99.0 IS 1216
Test on residue from rolling thin film oven test
Viscosity Ratio @60°C 4 IS 1206
Ductility @25°C 25 IS 1208
VG-40 is used in highly stressed areas such as intersections, near toll booths and truck parking lots in lieu of old 30/40 Penetration grade. Due to its higher viscosity, stiffer Bitumen mixes can be produced to improve resistance to shoving and other problems associated with higher temperature and heavy traffic loads.
