Research Article
Performance Research of Materials and Engineering Application of Overburden Strata Separation-Zone Grouting Technology
Table 2
Gradation distribution of grouting Material particles.
| Clay material | Particle diameter (mm) | >0.5 | 0.5∼0.25 | 0.25∼0.1 | 0.1∼0.075 | 0.075∼0.05 | 0.05∼0.01 | 0.01∼0.005 | 0.005∼0.002 | <0.002 | Percentage (%) | 1.1 | 1.4 | 7.2 | 1.7 | 10.0 | 42.2 | 9.7 | 6.6 | 20.1 | Fly ash material | Particle diameter (mm) | ≥5 | 2∼5 | 1∼2 | 0.5∼1 | 0.25∼0.5 | 0.075∼0.25 | ≤0.075 | — | — | Percentage (%) | 0.218 | 2.489 | 3.066 | 9.403 | 13.127 | 53.928 | 17.769 | — | — |
|
|