Research Article

Experimental Study on the Mechanical Properties of Sandstone under the Action of Chemical Erosion and Freeze-Thaw Cycles

Figure 9

Curves of compressive strength and number of freeze-thaw cycles of sandstone samples under different chemical erosions: (a) compressive strength curves at a confining pressure of 3 MPa; (b) compressive strength curves at a confining pressure of 6 MPa. S is the compressive strength of the sandstone samples subjected to m times freeze-thaw cycles under different chemical solutions. R2 is the correlation coefficient.
(a)
(b)