Abstract
Extension of the porous pavement is expected, even in urban expressways, as it serves for not only the traffic safety but also the roadside environment. The porous-pavement-mixture with a high-viscosity-modified-asphalt binder resists flow better than the conventional asphalt mixtures, but on bridge-decks, adhesion of binders may fail owing to the penetration of water. In this study, immersion wheel-tracking tests and bond-strength tests of different porous-pavement-structures and mechanical properties tests of base materials were carried out. From the results, it was found that there is a correlations between the resistance against stripping-failure and the bond-strength, and the bond-strength is influenced by the mechanical properties of base materials.
