Bitumen Specification
Viscosity Grade Analysis
Specification | Acceptable Range | Result | Test Method | Explanations |
Absolute Viscosity | Min 3200 | 3912 | ASTM – D4402 | at 60°c , Poises |
Kinematic Viscosity | Min 400 | 426 | ASTM – D4402 | at 135°c , c.st |
Ductility | Min 100 | >100 | ASTM – D113 | at 25°c , cm |
Solubility | 99.0 Min | 99.87 | ASTM – D2042 | in CCL4 , % |
Specific Gravity | 1.01-1.06 | 1.028 | ASTM – D70 | at 25°c |
Spot Test | Negative | Negative | T102 | in Naphtha |
Flash Point | 220 Min | 344 | ASTM – D92 | °c |
Penetration | 40-60 | 47 | ASTM – D5 | at 25°c , mm/10 |
Softening Point | Min 50 | 53.6 | ASTM – D36 | °c |
Test on Residue From Thin Film Oven Test (T.F.O.T) | ||||
Raito Viscosity | Max 4.0 | 1.5 | ASTM – D4402 | at 60°c , % |
Ductility | Min 25 | 38 | ASTM – D113 | at 25°c , cm |