Research Article
Effect of Crumb Rubber on the Moisture and Rutting Behavior of Low-Energy Asphalt and Determining the Best Flow Number Model
Table 5
Characteristics of crumb rubber-modified binder.
| Binder property | Standard | Unit | Crumb rubber percentage | 0 | 10 | 15 | 20 |
| Softening point | ASTM-D36 | °C | 49.2 | 58.3 | 61 | 73.1 | Penetration at 25°C | ASTM-D5 | 0.1 mm | 63 | 47 | 43 | 34 | Viscosity at 135°C | ASTM-D2170 | cST | 342 | 717 | 824 | 1218 | Specific gravity | ASTM-D70 | g/cm3 | 1.016 | 1.037 | 1.041 | 1.049 |
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