Research Article
Evaluating the Physical and Rheological Properties of Rejuvenated Styrene-Butadiene-Styrene-Modified Asphalt Binders
Table 1
The basic properties of SBS-modified asphalt binders.
| Properties | Methods | Limits | Values |
| Virgin asphalt binders | | | | Penetration at 25°C (0.1 mm) | ASTM D5 | 40∼60 | 51 | Softening point (°C) | ASTM D36 | ≥60 | 79 | Ductility at 5°C (cm) | ASTM D113 | ≥20 | 26 | Elastic recovery at 25°C (%) | ASTM D6084 | ≥70 | 88 | Storage stability, ΔSoft. Points, 48 h (°C) | ASTM D5976 | ≤2.5 | 1.5 | Solubility in trichloroethane (%) | ASTM D2042 | ≥99 | 99.5 | Flash point COC (°C) | ASTM D92 | ≥230 | 280 | Viscosity at 135°C (Pa·s) | ASTM D4402 | ≤3 | 1.5 | RTFOT residues | | | | Mass loss (%) | ASTM D2872 | ≤0.6 | 0.2 | Penetration ratio at 25°C (%) | ASTM D5 | ≥65 | 69 | Ductility at 5°C (cm) | ASTM D113 | ≥15 | 17 |
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