Research Article
Compression Characteristics of Solid Wastes as Backfill Materials
Table 2
Summary of deformation modulus-stress test results.
| Category | Test | Deformation modulus/MPa | Stress of 2 MPa | Stress of 12.5 MPa | 2–12.5 MPa increments |
| Single-graded size | 1 | 3.65 | 16.50 | 12.85 | 2 | 3.93 | 17.33 | 13.40 | 3 | 4.19 | 18.71 | 14.52 | 4 | 5.30 | 21.81 | 16.51 |
| | 5 | 5.17 | 25.87 | 20.70 |
| Maximum particle size | 6 | 6.56 | 30.94 | 24.38 | 7 | 6.37 | 32.32 | 25.95 | 8 | 7.68 | 37.87 | 30.19 |
| | 9 | 6.49 | 31.68 | 25.19 |
| Full-scale gradation | 10 () | 9.42 | 47.41 | 37.99 | 11 () | 10.49 | 50.63 | 40.14 | 12 () | 8.63 | 42.72 | 34.09 | 13 () | 7.69 | 37.99 | 30.30 |
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Note: is Talbot’s exponent.
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