Research Article
Research on Fatigue Model of Semi-Rigid Base Asphalt Pavement before and after Polymer Grouting
Table 3
Road structure and related parameters of polymer grouting materials.
| | Structural layer | Material | Thickness (cm) | Modulus of elasticity (MPa) | Poisson’s ratio | Density (kg/m3) |
| | Upper surface | SMA-13 | 4 | 1400 | 0.35 | 2400 | | Middle surface | AC-20 | 6 | 1200 | 0.30 | 2400 | | Under surface | AC-25 | 8 | 1000 | 0.30 | 2400 | | Base | Cement-stabilized macadam | 30 | 1500 | 0.25 | 2300 | | Subbase | Cement-stabilized gravel | 30 | 1300 | 0.30 | 1800 | | Subgrade | Compacted soil | — | 50 | 0.4 | 1920 | | — | Polymer | 0.5 | 80 | 0.4 | 300 |
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