Study on Hygroscopic Swelling and Dehumidification Cracking Characteristics of Expansive Soil under Acid Rain and Cyclic Drying-Wetting

Figure 8

The average crack width under cyclic drying-wetting samples during the dehumidification process. (a) One-time cyclic drying-wetting. (b) Four-times cyclic drying-wetting.

(a)

(b)