Abstract
There are many reports that porous asphalt pavement is damaged at early stage. It needs to study factors of occurrence and effective counter method for damage types that are not cleared how road administers correspond. Therefore document investigation and hearing investigation of local bureas were performed. Then, the occurrence of partial plastic flow were not found effective methds. So, effective methds that prevent partial plastic flow were researched by experiments. As a results, it was understood that factors were mainly stripping and flow of base course. And lack of adhesion of surface course and base course is one of factors, too. It was confirmed that durability of porous asphalt pavement was improved if counter methods that prevent these factors were performed.
