Research Article
Permeability Evolution and Particle Size Distribution of Saturated Crushed Sandstone under Compression
Table 4
Porosity under variable axial stresses.
| Specimen number | Talbot exponent () | Porosity () under variable axial stresses | 0 MPa | 2 MPa | 4 MPa | 8 MPa | 12 MPa | 16 MPa |
| | 0.2 | 0.415 | 0.309 | 0.247 | 0.195 | 0.167 | 0.152 | | 0.4 | 0.422 | 0.317 | 0.254 | 0.201 | 0.173 | 0.155 | | 0.6 | 0.432 | 0.326 | 0.262 | 0.206 | 0.179 | 0.158 | | 0.8 | 0.449 | 0.346 | 0.284 | 0.217 | 0.188 | 0.164 |
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