Research Article
Effect of Nano-Cobalt Oxide on the Rheological Behavior of Asphalt Binder and Mechanical Characteristics of Hot Mix Asphalt
Table 2
Physical characteristics of the asphalt binder.
| | Test method | Specification | Test results | Specification limit |
| | Flash point (°C) | AASHTO T48 | 295 | ≥230 | | Rotational viscosity @ 135°C (Pa.s) | AASHTO T316 | 0.32 | ≤3.0 | | Rutting factor (G∗/Sin δ) @ 64°C (kPa) | AASHTO T315 | 3.1 | ≥2.20 | | Fatigue factor (G∗.Sin δ) @ 25°C (kPa) | AASHTO T315 | 2950 | ≤5000 | | Stiffness @ 22°C (MPa) | AASHTO T313 | 147 | ≤300 | | m value @ 22°C | AASHTO T313 | 0.3299 | ≥0.3 |
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