Research Article
Mechanism and Rheological Properties of High-Modulus Asphalt
Table 1
Technical indexes of 70# asphalt and SBS-modified asphalt.
| Test properties | 70# asphalt | SBS-modified asphalt | Test results | Technical index | Test results | Technical index |
| P25°C, 100 g, 5 s (0.1 mm) | | 61 | 60–80 | 55 | 40–60 | TR&B (°C) | | 48.5 | ≥46 | 81 | ≥60 | Ductility (cm) | 5°C | — | — | 34.4 | ≥20 | 10°C | 18.3 | ≥15 | — | — | RTFOT (163°C, 85 min) | Mass loss (%) | 0.092 | ±0.8 | −0.047 | ±1.0 | Penetration ratio | 72 | ≥61 | 80 | ≥65 | Ductility (cm) | 5°C | — | — | 22 | ≥15 | | 10°C | 6.2 | ≥6 | — | — |
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