Experimental study on AE response and damage evolution characteristics of frozen sandstone under uniaxial compression

GCTS RTX-1500 low-temperature rock triaxial and acoustic emission (AE) testing systems were employed to evaluate frozen sandstone samples under uniaxial compression. Based on the AE responses, the mechanical properties, failure modes, and damage evolution characteristics of the sandstone samples at different temperatures were investigated. The results showed that (1) with decreasing temperature, the compressive strength, modulus of elasticity,...