Table 1.
Qualitative and quantitative analysis results of whole-rock minerals.
Fig 1.
Representative experimental samples.
Fig 2.
Hygroscopic experimental device.
Fig 3.
Mechanical testing apparatus and samples.
Fig 4.
Water contents over time under different humidity.
Fig 5.
Experimental deviations of water contents over time under different humidity.
Fig 6.
Microscopic structure of high clay-content shale (SEM scan results).
Table 2.
Hygroscopic parameters of the fitted moisture absorption curves of the experiment samples under different relative humidity.
Fig 7.
Fitting parameters of moisture absorption vs. relative humidity.
Fig 8.
Water contents over time under different temperature.
Fig 9.
Experimental deviations of water contents over time under different temperature.
Table 3.
Relevant parameters of the fitted moisture absorption curves of the experiment samples under different temperature.
Fig 10.
Fitting parameters of moisture absorption vs. temperature.
Fig 11.
Relationship between UCS, E, and water content.