Development of Model for Predicting the Flexible Pavement Strength

Abstract

In the present, roads in Thailand are mainly asphalt pavements. While traffic is applying on the road, it is also damaging the pavement structure. Currently the remaining pavement strength can be assessed by pavement surface deflection measurement by using the Falling Weight Deflectometer test. However, knowing the changes of pavement strength over future time is also needed to plan for the pavement rehabilitation works. This research presents the development of pavement strength over time. The objectives are to develop a statistical model between pavement strength and factors affecting asphalt pavement. Then the pavement strength model is compared with the test data of actual asphalt pavement. The factors that affect pavement strength are type of base material, number of standard axle repetition applying on the pavement, temperature, and season.