Yusuke@HIWA

Study on Applicability of Resin-Reinforced Open Graded Asphalt Concretes to Base Course of Buried Joints

Teruhiko@MARUYAMA

It is recommended that mastic asphalt mixture with high expansibility and flexibility is applied to base course of buried joints for averting an extreme stress concentration. Recent yearsCit has been difficult to prepare the ingredients for mastic asphalt, and its producing and paving require special apparatus and extra costs.
This study discusses about applicability of resin-reinforced open graded asphalt concrete as base course of buried joints. Not only reductions of cost and other troublesome matters but also improvement of performance were focused. The results from direct tension test, static bending test and cyclic bending test shows that the resin-reinforced open graded asphalt concretes have high resistance for destruction as base course of buried joints. Moreover, applicability of resin-reinforced open graded asphalt concrete to base course of buried joints was investigated by comparing the perfomancees with those of mastic asphalt.