Research Article
Study on the Properties of Waste Oil-Activated Crumb Rubber-Modified Asphalt Based on Molecular Dynamics Simulation and Rheology
Table 2
Technical index of crumb rubber.
| | Technical indexes | American | Chinese | Test results |
| | Physical indexes | Relative density (g/cm3) | 1.1–1.2 | 1.1–1.3 | 1.26 | | Moisture (%) | ≤0.75 | <1 | 0.83 | | Metal content (%) | <0.1 | <0.03 | 0.02 | | Fiber content (%) | — | <1 | 0.8 |
| | Chemical indexes | Acetone extract (%) | ≤25 | ≤22 | 10.55 | | Ash (%) | ≤8 | ≤8 | 2.43 | | Carbon black content (%) | 20–40 | ≥28 | 34.78 | | Rubber hydrocarbon content (%) | 40–55 | ≥42 | 52.24 | | Natural rubber content (%) | 16–24 | ≥30 | 30.56 |
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