Research Article
Effects of Diatomite and SBS on Freeze-Thaw Resistance of Crumb Rubber Modified Asphalt Mixture
Table 1
Properties of neat asphalt.
| Property | Value | Technical criterion (%) |
| Penetration (25°C, 0.1 mm) | 84 | 80~100 | Penetration index PI | | −1.5~+1.0 | Softening point TR&B (°C) | 44 | ≥42 | Ductility (15°C, cm) | 150 | ≥100 | Specific gravity (15°C, g/cm3) | 1.05 | — | After TFOT | | | Mass loss (%) | | ≤±0.8 | Penetration ratio (25°C, %) | 64 | ≥57 | Age ductility (10°C, cm) | 14 | ≥8 |
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