Experiment and Mechanism Investigation on Freezing-Thawing of Sandstone with Different Water Contents

Figure 7

SEM images of sandstone with different water contents (magnifying 200 times). (a) ω = 0%. (b) ω = 0.57%. (c) ω = 1.06%. (d) ω = 1.82%. (e) ω = 2.43. (f) ω = 2.80%.

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