Research Article
Effect of Ca/Al Ratio on Stabilization/Solidification of Lead-Contaminated Soil by Ettringite
Table 3
Material composition (unit: %).
| | Composition | Al2O3 | SiO2 | CaO | SO3 | Fe2O3 | Others |
| | High-alumina cement | 44.75 | 8.95 | 32.16 | / | 1.86 | 12.28 | | Lime | / | / | 99.99 | / | / | 0.01 | | Gypsum | / | / | 36.50 | 52.14 | / | 11.36 |
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