Research Article
Compression of Aggregates of Acid-Leached Coal Gangues: Implications for Coal Mine Backfill
Table 2
Content of elements or compounds of the gangues (%).
| Category | SiO2 | Al2O3 | CO3 | Fe2O3 | K2O | CaO | MgO | TiO2 | Na2O | Percentage | 56.08 | 23.38 | 9.72 | 4.397 | 2.06 | 1.53 | 1.15 | 0.869 | 0.606 | Category | Ba | Zr | S | P | Sr | Cl | Mn | Percentage | 0.059 | 0.0397 | 0.036 | 0.028 | 0.0178 | 0.016 | 0.011 |
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