Research Article
Research on the Pore Evolution of Sandstone in Cold Regions under Freeze-Thaw Weathering Cycles Based on NMR
Table 2
Average pore connectivity parameters calculated.
| Freeze-thaw cycles | 0 | 20 | 40 | 60 | 80 | 100 | 120 |
| Porosity (%) | 6.516 | 5.660 | 5.482 | 5.475 | 5.688 | 5.695 | 5.803 | IFP (%) | 2.681 | 2.845 | 2.841 | 2.706 | 2.623 | 2.364 | 2.313 | MFP (%) | 3.835 | 2.815 | 2.641 | 2.769 | 3.065 | 3.331 | 3.490 | BVI (%) | 41.147 | 50.269 | 51.827 | 49.432 | 46.116 | 41.503 | 39.859 | FFI (%) | 58.853 | 49.731 | 48.173 | 50.568 | 53.884 | 58.497 | 60.141 | T2cutoff | 4.4 | 4.2 | 3.74 | 3.2 | 2.77 | 2.4 | 2.13 |
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