Study on the Evolution Law of Macroscopic Shear Behavior of Sandstone-Concrete Interface under Freeze-Thaw Cycles

DOI

10.2991/978-94-6239-740-8_3How to use a DOI?

Keywords

rock-concrete interface; freeze-thaw cycle; interface roughness; macroscopic mechanical properties

Abstract

In tunnel engineering in cold regions, the bond interface between surrounding rock and concrete lining is prone to deterioration under the action of freeze-thaw cycles, which seriously threatens the safety of the project. Aiming at the deterioration of sandstone-concrete interface in cold regions, the experimental study of macroscopic mechanical properties was carried out. The results show that: ( 1) The shear strength of the interface decreases significantly with the increase of freeze-thaw cycles, and the lower the interface roughness, the more significant the strength attenuation. Under the condition of low roughness, the maximum decrease of shear strength after 50 freeze-thaw cycles can reach 40%. ( 2) Freeze-thaw action generates frost heave force through pore water, which leads to the internal damage of the material and the decrease of interfacial bond strength. The specific performance is that the peak shear stress difference between specimens with different roughness decreases continuously with the increase of freeze-thaw cycles.

Copyright

© 2026 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  - Chuang Sun
AU  - Leilei Jing
PY  - 2026
DA  - 2026/08/14
TI  - Study on the Evolution Law of Macroscopic Shear Behavior of Sandstone-Concrete Interface under Freeze-Thaw Cycles
BT  - Proceedings of the 2026 9th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA 2026)
PB  - Atlantis Press
SP  - 19
EP  - 26
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6239-740-8_3
DO  - 10.2991/978-94-6239-740-8_3
ID  - Sun2026
ER  -