| Property |
Specification |
| Appearance |
Black or dark brown, semi-solid or viscous material |
| Penetration (at 25°C) |
20–225 (depends on grade, measured in 1/10 mm) |
| Softening Point (R&B) |
35°C – 70°C (grade dependent) |
| Specific Gravity (at 25°C) |
0.97 – 1.02 |
| Ductility (at 25°C) |
>100 cm (for paving grade bitumen) |
| Flash Point |
>220°C |
| Viscosity (at 60°C) |
100 – 4000 poise (depending on grade) |
| Solubility in Trichloroethylene |
>99% |
| Water Content |
Nil or <0.2% |
| Loss on Heating (163°C for 5 hrs) |
<1% |
| Adhesion to Aggregates |
Excellent |
