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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.

Characterisitics Value Test Method
Penetration @ 25°C 35 IS 203
Absolute Viscosity@60C, Poises 3200-4800 IS1206
Kinematic Viscocity @135°C 400 IS1206
Flash Point °C 220 IS1448
Solubility in CS2 wt % 99.0 IS1216
Softening point % 50 IS1205
Test on residue from rolling thin film oven test    
Viscosity ratio @60C 4 IS1206
Ductility @25C 25 IS1208

Bitumen All Viscocity Grades

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