Table 5. Comparison of Pore Size and Throat Parameters of Specimens under HPAB.
| before HPAB | after HPAB-distance from the blasthole |
|||
|---|---|---|---|---|
| parameters of specimens | control group | 25 mm | 100 mm | 250 mm |
| model size/mm | 4 × 4 × 3 | |||
| number of pores | 2165 | 2702 | 2444 | 2286 |
| the maximum equivalent radius of pore/μm | 159.01 | 258.14 | 226.75 | 183.55 |
| the average equivalent radius of pore/μm | 61.35 | 91.30 | 77.30 | 69.42 |
| number of throats | 394 | 5499 | 2023 | 976 |
| the maximum equivalent radius of throat/μm | 105.06 | 159.85 | 157.14 | 112.55 |
| the average equivalent radius of throat/μm | 40.75 | 40.63 | 39.65 | 40.00 |
| the maximum channel length of throat/μm | 554.23 | 864.94 | 748.01 | 709.99 |
| the average channel length of throat/μm | 268.29 | 284.39 | 273.80 | 271.47 |