THE SOUNDNESS EVALUATION OF CONCRETE PAVEMENT FROM FOLLOW-UP SURVEY AND BACK-ANALYSIS

Abstract

 It is important to evaluate the long-term performance for utilizing concrete pavement more in the right place and right way. Moreover, the effect of wire mesh is controversial on its costs and benefits, although it is often installed in joint concrete pavement. This research conducted the follow-up survey on a section of concrete pavement in Hiraizumi Bypass of Route 4, which has served for 24 years. We also applied for back-analysis of FWD data to evaluated the long-term structural performance and the effect of wire mesh. The result shows the concrete pavement keeps an appropriate service level, although some slabs have been cracked. It was not clear that wire mesh keeps crack opening tight. On the contraly, it was found that it caused potholes on the surface.