Table 4 Basic properties of thermal resistant aggregate
From: Review of regulation techniques of asphalt pavement high temperature for climate change adaptation
Thermal resistant aggregate | Apparent density (g/cm3) | Water absorption (%) | Crushing value (%) | Wear value (%) | Thermal conductivity (W m-1 k-1) |
|---|---|---|---|---|---|
2.562-2.799 | 6.158-6.294 | 26.4-28.9 | 16.6-26.9 | 0.4-0.7 | |
1.378-1.517 | 5.3-8.7 | 21.0-30.1 | 14-21 | 0.836-1.045 | |
2.34-2.4 | 0.86-1.04 | 22.7 | 20-20.5 | 0.57-1.045 | |
Calcined bauxite [76] | 2.841-2.857 | 1.71-1.77 | 21.7-22.9 | Â | - |
2.12 | 10.39 | 42.6 | 36.24 | remained unchanged | |
1.75 | 1.78 | 33.2 | 25.89 | ||
1.91 | 5.91 | 36.1 | 27.32 | ||
Technical requirement | ≥2.60 | ≤2.00 | ≤26.0 | ≤28.0 | - |