Research Article
Material Composition Design and Anticracking Performance Evaluation of Asphalt Rubber Stress-Absorbing Membrane Interlayer (AR-SAMI)
Table 6
The test conditions and programs of the fatigue cracking test.
| | Test conditions | Overlay types | Asphalt application rate (kg/m2) | Aggregate application rate (kg/m2) |
| | Dry (15°C) | With SAMI | SK90# raw asphalt | 2.2 | 14.0 | | SBS-modified asphalt | | Asphalt rubber | | No AR-SAMI | — | | — | | With AR-SAMI | 1.6 | | 14.0 | | 1.9 | | 14.0 | | 2.2 | | 14.0 | | 2.5 | | 14.0 |
| | Water bath (15°C, 25°C, 35°C, and 45°C) | No AR-SAMI | — | | — | | With AR-SAMI | 1.6 | | 14.0 | | 1.9 | | 14.0 | | 2.2 | | 14.0 | | 2.5 | | 14.0 |
|
|
