This grade of bitumen, is produced through air-blowing process in a refinery.
60-70 bitumen is considered as a mild PEN grade while it enjoys adequate durability exposing to heavy traffic loads.
Specification | Test Method | Unit | Min. | Max. |
Specific Gravity at 25 °C | ASTM D70 | kg/m³ | 1.01 | 1.06 |
Penetration at 25 °C, 100g, 5s | ASTM D5 | 0.1mm | 60 | 70 |
Softening Point | ASTM D36 | °C | 49 | 56 |
Ductility at 25 °C | ASTM D113 | Cm | 100 | – |
Loss on Heating | ASTM D6 | %WT | – | 0.2 |
Drop in Penetration after Heating | ASTM D5 | % | – | 20 |
Flash Point | ASTM D92 | °C | 250 | – |
Solubility in Trichloroethylene | ASTM D2042 | %WT | 99 | – |
Spot Test | AASHTO T102 | Negative |
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