Research Article
Dynamic Characteristics of Warm Mix Foamed Asphalt Mixture in Seasonal Frozen Area
Table 3
List of the best oil-stone ratio of warm mix foamed asphalt mixture.
| | Gradation | Asphalt type | Mixing type | Optimum mixing temperature (°C) | Reduction in temperature (°C) | Best asphalt aggregate ratio (%) | ±Asphalt-aggregate ratio (%) | VV (%) | VMA (%) | VFA (%) |
| | AC-20 | 70# | HMA | 150 | 20 | 4.0 | +0.2 | 3.9 | 13.2 | 70.5 | | FWMA | 130 | | 4.2 | | 4.1 | 13.5 | 69.6 |
| | AC-20 | 90# | HMA | 160 | 15 | 4.3 | 0 | 4.0 | 13.4 | 70.2 | | FWMA | 145 | | 4.3 | | 4.1 | 13.1 | 70.4 |
| | AC-20 | SBS# | HMA | 175 | 30 | 4.5 | +0.3 | 4.1 | 13.7 | 70.2 | | FWMA | 145 | | 4.8 | | 3.9 | 13.3 | 69.7 |
| | AC-13 | SBS# | HMA | 175 | 25 | 4.5 | 0 | 4.0 | 14.1 | 71.6 | | FWMA | 150 | | 4.5 | | 4.1 | 14.2 | 70.8 |
|
|
