The Acoustic Emission Characteristics of Sandstone With Cyclic Loading and Acid-Base Corrosion Coupling

DOI

10.2991/978-94-6463-793-9_91How to use a DOI?

Keywords

Mechanical property; Acoustic emission; Cyclic loading; Acid-base corrosion

Abstract

Rocks may undergo changes in internal structural integrity due to the coupling of cyclic loading and acidbase corrosion (CL-AC), which can subsequently alter their mechanical properties. Based on uniaxial compression tests with acoustic emission, the coupling of CL-AC on the mechanical behavior of sandstone and the evolution of acoustic emission characteristics were investigated. The results indicated that as the coupling of CL-AC increased, the uniaxial compressive strength of sandstone decreased significantly. The cumulative acoustic emission count and energy of the pre-treated sandstone showed a decreasing trend. The proportion of low-frequency acoustic emission signals from the sandstone increased, while the proportions of mid and high-frequency signals decreased. That is, the coupling of CL-AC facilitated the formation of larger cracks. As the sandstone approached failure, low-frequency, high-amplitude and mid-frequency, high-amplitude acoustic emission signals disappeared, which may serve as a precursor to sandstone failure. The RA-AF value distribution of the sandstone showed that the pre-treated sandstone primarily exhibited tensile cracks, while the lossless sandstone was dominated by shear cracks. That is, the coupling of CL-AC promoted the propagation of tensile cracks and inhibited the expansion of shear cracks. These findings offered valuable insights into the damage and failure mechanisms of sandstone under the coupling of CL-AC, providing crucial guidance for the prevention of rock dynamic hazards.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Yu Yang
AU  - Shunyi Wang
PY  - 2025
DA  - 2025/07/28
TI  - The Acoustic Emission Characteristics of Sandstone With Cyclic Loading and Acid-Base Corrosion Coupling
BT  - Proceedings of the 2025 8th International Conference on Traffic Transportation and Civil Architecture (ICTTCA 2025)
PB  - Atlantis Press
SP  - 1065
EP  - 1078
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-793-9_91
DO  - 10.2991/978-94-6463-793-9_91
ID  - Yang2025
ER  -