Effects of Saline Solutions on the Desiccation Cracking and Shrinkage Behavior of Gaomiaozi Bentonite

Figure 4

SEM images of bentonite: (a) sample after compaction (×1000); (b) DW (×20000); (c) 2.0Na-T (×20000); (d) 2.0Ca-T (×20000).

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(b)

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(d)