EARLY DESTRUCTION OF BRIDGE SURFACE ASPHALT PAVEMENT AFFECTED BY THE DETERIORATION OCCURING IN BRIDGE DECK UPPER LAYER

Abstract

 In this study early destruction of asphalt pavement caused by deterioration in the upper layer of bridge deck has been discussed experimentally. Firstly, the researcher figured out if the damage mechanism of asphalt pavement could be simulated by the water-immersed fatigue experiment in which the pavements such as environment temperature and specimen’s shape are varied.Furthermore, early destruction of asphalt pavement is reproduced. and as the result, in the asphalt pavement above the aggregation, bending crack occurred because the supporting power of bridge deck has been reduced.Therefore, these crack developed until the bridge surface and this phenomenon leads to the early destruction of asphalt pavement.