Abstract
In this study, the full scale pavement was constructed, in which vertical stresses at the top of the base course and subgrade were measured under a large number of repetitive loads without any rainwater on the pavement surface. From the results of measurements, it was re-confirmed that the water intrusion significantly affects fatigue damage development. It was also observed that elastic moduli of asphalt layer and base course rapidly declined in the early stage of loading but become steady at a certain level in the later stage, which suggests a long term durability of the pavement unless the water intrudes into the base course or subgrade.