Research Article
Road Performance of Calcium Sulfate Whisker and Polyester Fiber Composite-Modified Asphalt Mixture
Table 2
Properties of the aggregate used in the study.
| Sieve diameters | Properties | Results | Standard in China (JTG E42-2005) |
| Mineral powder | Specific gravity (g/cm3) | 2.682 | ≥2.6 | Hydrophilic coefficient | 0.7 | <1 | Plasticity index (%) | 3.7 | <4 |
| 4.75–0.075 mm | Specific gravity (g/cm3) | 2.70 | ≥2.50 | Firmness (%) | 5 | ≤12 | Sediment percentage (%) | 1.1 | ≤1.2 | Sand equivalent (%) | 64 | ≥60 |
| 9.5–4.75 mm | Specific gravity (g/cm3) | 2.70 | ≥2.60 | Water absorption (%) | 1.79 | ≤2.0 | Abrasion loss (%) (Los Angeles) | 23 | ≤28 |
| 16–9.5 mm | Specific gravity (g/cm3) | 2.68 | ≥2.60 | Water absorption (%) | 1.7 | ≤2.0 | Abrasion loss (%) (Los Angeles) | 20 | ≤28 |
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