Research Article
Composition and Evaluation on Road Performance of SBS/PTW High-Viscosity-Modified Asphalt and Its Mixtures for Ultrathin Overlays
Table 9
Test results of physical properties of modified asphalt.
| | No. | Asphalt type | Penetration (0.1 mm) | Softening point (°C) | Ductility (5°C, cm) | Dynamic viscosity (60°C, Pa·s) | Toughness (25°C, N·m) | Tenacity (25°C, N·m) |
| | G | Matrix asphalt-6% SBS-4% furfural extraction oil-0.2% PTW-0.2% nano-ZnO | 53.6 | 82.1 | 40.2 | 64204 | 25.4 | 20.9 | | A | HMA-I | 51.2 | 71.8 | 50.1 | 23370 | 20 | 14.5 | | B | HMA-II | 58.3 | 68.8 | 54.8 | 12217 | 25.2 | 20.6 | | C | HMA-III | 46.5 | 71.6 | 36.5 | 19758 | 25.6 | 19.6 | | Standard | GB/T 30516-2014 [26] | 40∼80 | ≮70 | ≮20 | >20000 | ≮20 | ≮15 |
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