Research Article
Effects of Commercial Antioxidants on Aging Resistances of Asphalt Binders
Table 4
Influence of matrix asphalt on three indexes before and after mixing and aging.
| Name | Property | Before aging | After aging | 0 | 1 | 5 | 10 | 0 | 1 | 5 | 10 |
| 1# | Penetration (0.1 mm) | 81 | 79 | 76 | 60 | 49 | 49 | 47 | 37 | Softening point (°C) | 48.9 | 48.6 | 48.8 | 48.4 | 54.4 | 53.6 | 53.9 | 53.3 | Ductility (10 °C, cm) | 39.0 | 44.8 | 33.6 | — | 6.6 | 7.9 | 7.2 | — |
| 2# | Penetration (0.1 mm) | 81 | 77 | 80 | 87 | 49 | 49 | 53 | 56 | Softening point (°C) | 48.9 | 48.8 | 48.2 | 48.0 | 54.4 | 54.1 | 53.0 | 52.3 | Ductility (10 °C, cm) | 39.0 | 41.6 | 35.8 | 50.3 | 6.6 | 7.3 | 7.5 | 10.0 |
| 3# | Penetration (0.1 mm) | 145 | 144 | 138 | 117 | 89 | 94 | 88 | 77 | Softening point (°C) | 49.2 | 48.5 | 48.8 | 50.0 | 49.9 | 48.9 | 49.3 | 50.3 | Ductility (10 °C, cm) | 150.0 | 150.0 | 142.5 | 117.1 | 52.7 | 53.1 | 52.6 | 44.3 |
| 4# | Penetration (0.1 mm) | 145 | 145 | 141 | 142 | 89 | 97 | 101 | 98 | Softening point (°C) | 49.2 | 49.0 | 48.4 | 48.3 | 49.9 | 49.6 | 48.7 | 48.5 | Ductility (10 °C, cm) | 150.0 | 150.0 | 150.0 | 144.5 | 52.7 | 58.5 | 68.7 | 70.7 |
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