Research Article
Temperature Adaptability of Asphalt Pavement to High Temperatures and Significant Temperature Differences
Table 6
Thermophysical and mechanical parameters of chemical-treated and other pavement materials.
| Material | Density (kg/m3) | Specific heat (J/(kg·°C)) | Thermal conductivity (W/(m·°C)) | Coefficient of thermal expansion (m−3/m) | Dynamic modulus (MPa) | Poisson’s ratio |
| Cement-treated sand gravel | 2300 | 825 | 1.1–1.3 | 1e-5 | 14000∼20000 | 0.25 | Natural sand gravel | 1600 | 875 | 1.3–1.6 | 1.5e-5 | 350 | 0.35 | Graded macadam | 2250 | 820 | 1.2–1.4 | 1e-5 | 150 | 0.35 | Subgrade | 1700 | 860 | 1.2–1.4 | 50e-5 | 65 | 0.4 |
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