August 13, 2025

Research on damage evolution mechanism of sandstones with different lithologies under freeze-thaw cyclic loads.

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Significant damage occurs in sandstone due to freeze-thaw cycles, with distinct evolution patterns for different lithologies.
Peak stress and elastic modulus decrease correlatively with pore size and number during freeze-thaw cycles.
Green Sandstone shows more degradation compared to Yellow Sandstone after 40 freeze-thaw cycles, leading to observable fracture surfaces.
A damage model highlights three stages of damage evolution, with the accelerated stage being critical for predicting rock failure.

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Experimental analysis reveals damage evolution in sandstones under freeze-thaw cycles, highlighting stability risks in cold regions.

Li et al. (2025) studied this question.

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