A STUDY OF DETERIORATION PROPERTIES OF EXISTING PAVEMENTS WITH DIFFERENT DAMAGE LEVELS

Abstract

 Evaluation of pavement deterioration is important for efficient maintenance of asphalt pavements. Cracks in the asphalt pavement surface and insufficient pavement compaction induce failure due to water and air infiltration. In order to understand the effect of pavement damage level on the degradation properties of asphalt, the air permeability of the pavement was evaluated in the continuous cross-sectional direction from the existing pavement surface at different damage levels in this study. In addition, the degradation properties of the asphalt mixture and the degradation progression in the depth direction were evaluated.