第３部門⑥

[23018-22-03] Use of AE Parameter and Dynamic Elastic Modulus for Evaluation of Mechanical Properties of Concrete Repaired by Resin Grouting Method (Proceedings of Symposium on Applied Mechanics)

*Yuma Shimamoto¹, Tetsuya Suzuki² (1. Tokyo University of Agriculture and Technology, 2. Niigata University)

Keywords:Concrete, Resin grouting, Acousitic emission

In this paper, the mechanical properties of concrete specimens grouted with resin were evaluated using AE parameters and dynamic elastic modulus. After the specimens were cracked in splitting test, soft or hard resin was grouted into the cracks. The dynamic elastic modulus of both soft and hard resins increased after grouting. AE energy could complement strength indices. These results suggest that AE measurements can be used to evaluate the fracture process of resin-concrete composites in detail.