| Popis: |
For the purpose of establishing a repair design method of asphalt pavements for the Japanese expressways, an efficient method of damage evaluation that does not need core sampling was studied for development. According to analyzing FWD data and sampled cores near the falling point, deflection difference (D0-D90) divided by asphalt layers' thickness was found practically distinguishable from safe layers to those damaged. From materials testing of the cores, it was also found binder course mix for porous asphalt is to be with higher resilient modulus and splitting resistance. |
