Here is the Vg bitumen with viscosity of 3200-4800 Poise which means this type of bitumen is the key for high temperatures above 40 ◦C and super hard traffic such as conjunctions or segments in construction bearing heavy loads. Occasionally Vg40 is the better alternative for 40-50 in penetration grade.
Viscosity Grade VG-40 Bitumen Specifications | |||
Specifications | Acceptable Range | Test Method | Explanations |
Absolute Viscosity | Min 3200 | ASTM – D4402 | at 60°C, Poises |
Kinematic Viscosity | Min 400 | ASTM – D4402 | at 135°C, c.st |
Solubility | 99.0 Min | ASTM – D2042 | in CCL4, % |
Flash Point | 220 Min | ASTM – D92 | °C |
Penetration | 40-60 | ASTM – D5 | at 25°C, mm/10 |
Softening Point | Min 50 | ASTM – D36 | °C |
Test on Reside Form Thin Film Oven Test (T.F.O.T) | |||
Ratio Viscosity | Max 4.0 | ASTM – D4402 | at 60°C, % |
Ductility | Min 25 | ASTM – D113 | at 25°C, cm |
Do You Need More Information About Bitumen Viscosity Grades VG20?
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