4 DIFFERENT FORMS OF BITUMEN USED IN ROAD …
This grade is mostly used in India. Bitumen is also graded based on viscosity grading. 80/100 belongs to VG 10 group. Other grades of bitumen can be 30/40 (3-4 mm penetration value on penetration test), 60/70 (6–7 mm penetration). If grade of bitumen is A-30 …
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