2023 Volume 79 Issue 21 Article ID: 23-21004
One damage progression mechanism that should be noted for asphalt pavements is the loss of bearing capacity caused by damage to individual pavement sections due to water intrusion into the pavement. On the other hand, it is still unclear how the damage to each pavement section affects the bearing capacity of the pavement. In this study, laboratory tests were conducted on granular roadbed and asphalt stabilized mixture to investigate the effect of water penetration into the pavement on the pavement structure. As a result, it is found that the bearing capacity of the former pavement decreases due to the increase of fine grains, and that the strength of the asphalt stabilized mixture decreases significantly due to water intrusion in the latter pavement. Furthermore, a 3DFEM analysis was conducted considering the test results, and the effect of water intrusion into the pavement on the pavement body was verified using a theoretical design method.
