Research Article
Effects of Saline Solutions on the Desiccation Cracking and Shrinkage Behavior of Gaomiaozi Bentonite
Table 5
Shrinkage strain parameters of bentonite specimens saturated with different salt solutions.
| | Parameter (%) | DW | 0.5Na-T | 1.0Na-T | 2.0Na-T | 0.5Ca-T | 1.0Ca-T | 2.0Ca-T |
| | Volumetric strain | 32.00 | 27.65 | 26.87 | 25.81 | 23.65 | 22.78 | 20.24 | | Radial strain εr | 11.12 | 9.47 | 9.60 | 9.25 | 8.02 | 8.05 | 7.25 | | Axial strain εa | 13.90 | 11.70 | 10.50 | 9.87 | 9.75 | 8.71 | 7.27 | | εa−εr | 2.78 | 2.23 | 0.90 | 0.62 | 1.73 | 0.66 | 0.02 |
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