Research Article
Development and Evaluation of Solvent-Based Cold Patching Asphalt Mixture Based on Multiscale
Table 1
The main performance indexes of 90# base asphalt.
| Indexes | Experimental data | Specification requirements |
| Penetration (25°C, 5s, 100 g) | 88.3 | 80~100 | Penetration index PI | 0.47 | −1.5~+1.0 | Softening point (ring and ball method)/°C | 52.4 | ≥44 | Ductility (15°C, 5 cm/min) | >150 | ≥100 | Dynamic viscosity of 60°C (Pa·s) | ≥140 | 149 | Solubility (%) | ≥99.5 | 99.5 | Residue after heating test in RTFO | Mass loss (%) | 0.002 | ±0.8 | Penetration ratio 25°C (%) | 62 | ≥57 | Ductility 10°C (cm) | 22 | ≥8 | Adhesion grade to coarse aggregate | 5 | ≮4 |
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