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.

MaterialDensity (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 gravel23008251.1–1.31e-514000∼200000.25
Natural sand gravel16008751.3–1.61.5e-53500.35
Graded macadam22508201.2–1.41e-51500.35
Subgrade17008601.2–1.450e-5650.4