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

Figure 11

Relation of ringing count-stress with time. (a) ω = 0%. (b) ω = 0.57%. (c) ω = 1.06%. (d) ω = 1.82%. (e) ω = 2.43%. (f) ω = 2.80%.

(a)

(b)

(c)

(d)

(e)

(f)