Table 1 Hydrological study methods
Scholar | Subject investigated | Soak period (h) | Drying time (h) | Drying temperature (°C) |
|---|---|---|---|---|
Bin Du [2] | Red sandstone | 24 | 24 | 60 |
Zhanming Shi [3] | Sandstone | 24 | 24 | 105 |
Jie Meng [4] | Sandstone | 24 | / | 60 |
Xiaoshuang Li [5] | Mid-particle sandstone | 48 | 12 | 50 |
Huang Zhen [6] | Sandstone | 48 | 24 | 105 |
Hexing Zhang [7] | Sandstone | 12 | 12 | 100 |
Peng Ying [8] | Compact sandstone | 96 | 24 | 110 |
Zilong Zhou [9] | Sandstone | 1 | > 144 | Room temperature (25) |
Jingke Zhang [10] | Sandstone | 12 | 12 | Room temperature |