Research Article
Studying Engineering Characteristics of Asphalt Binder and Mixture Modified by Nanosilica and Estimating Their Correlations
Table 1
Physical properties measured of bitumen.
| | Parameter measured | Test method | Test value |
| | Specific gravity at 25°C (g/cm3) | AASHTO T228 | 1.01 | | Penetration at 25°C (0.1 mm) | AASHTO T49 | 60 | | Softening point (R&B) (°C) | AASHTO T53 | 56 | | Viscosity at 120°C (centistokes) | AASHTO T201 | 1055 | | Viscosity at 135°C (centistokes) | AASHTO T201 | 361 | | Viscosity at 160°C (centistokes) | AASHTO T201 | 170 | | Ductility at 25°C (cm) | AASHTO T51 | >100 |
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