表面被覆工法の付着特性に着目した耐久性評価方法に関する研究

概要

論文の詳細を見る
Various repair methods have been recently applied to not a few concrete structures which had been degraded, in order to prolong the service life of infrastructures. In the Subcommittee on Polymers for Repair and Strengthening (in Concrete Structures) organized in Committee on Polymers in Concrete (Chair : Toyoaki Miyagawa) of the Society of Materials Science, Japan (JSMS), the systematic experiment with the common test procedure on the concrete surface coating systems/materials has been carried out since 2006, in order to propose a common test method which is available to the actual proof and the comprehensive evaluation of the durability of the concrete structures repaired with the concrete surface coating material.In this study, the common test method was focused on the bond performance which has a great influence on the durability of concrete surface coating system. The bond test methods which were able to evaluate the peeling behavior were performed in addition to the popular bond test using uni-axial tension, which often resulted in the similar bond strength due to the fracture of the substrate. The common test results on the concrete surface coating system using both the uni-axial tensile and peeling bond test brought more practical and accurate evaluation for the bond performance of coating films.