Table 2 Orthogonal test results range analysis calculation table.
A/Times | B/% | C/% | |
|---|---|---|---|
Unconfined compressive strength | |||
\(\overline{{K_{11} }}\) | 9.47 | 9.34 | 7.34 |
\(\overline{{K_{12} }}\) | 9.71 | 9.57 | 9.24 |
\(\overline{{K_{13} }}\) | 9.59 | 9.86 | 12.19 |
R1 | 0.24 | 0.52 | 4.85 |
Total chromium leaching concentration | |||
\(\overline{{K_{21} }}\) | 2.24 | 2.51 | 2.72 |
\(\overline{{K_{22} }}\) | 1.57 | 1.67 | 1.50 |
\(\overline{{K_{23} }}\) | 1.53 | 1.16 | 1.12 |
R2 | 0.71 | 1.35 | 1.60 |
Chromium hexavalent leaching concentration | |||
\(\overline{{K_{31} }}\) | 0.29 | 0.18 | 0.19 |
\(\overline{{K_{32} }}\) | 0.06 | 0.11 | 0.11 |
\(\overline{{K_{33} }}\) | 0.02 | 0.09 | 0.07 |
R3 | 0.27 | 0.09 | 0.12 |
