International Session (Geotechnical Engineering)

[CS2-10] DIFFERENT ACOUSTIC EMISSION CHARACTERISTICS OF SATURATED PURE SAND AND CEMENT TREATED SAND IN TRIAXIAL COMPRESSION TEST

〇Xianfeng Li¹, Junichi Koseki¹ (1.The University of Tokyo)

Keywords:Acoustic emission, Cement treated sand, Drained triaxial compression test, AE hit rate

Over the past decades, acoustic emission technology, as a non-destructive testing technique, has been widely used to detect and locate micro damage in many materials, including rock, concrete, metal, etc. In this paper, acoustic emission technique was used with great interest in understanding the different AE characteristics of saturated pure sand and cement treated sand subjected to drained triaxial compression tests, and quantitative analysis of AE waves was made in terms of AE hit rate in 10 seconds. It was found that AE hit rate of cement treated sand is much smaller than that of pure sand, possibly caused by cementation.