Table 1.
The chemical compositions of four different clays and their density.
| Sample | Red Clay 2.02 g/cm3 |
Ball Clay 1.99 g/cm3 |
Bentonite 2.1 g/cm3 |
Kaolin 1.99 g/cm3 |
|---|---|---|---|---|
| Na2O | 0 | 0 | 1.3 ± 0.11 | 0 |
| MgO | 0.89 ± 0.32 | 0 | 1.18 ± 0.21 | 2.99 ± 0.16 |
| Al2O3 | 27.34 ± 0.24 | 35.08 ± 0.21 | 20.35 ± 0.14 | 35.53 ± 0.24 |
| SiO2 | 55.95 ± 0.11 | 58.26 ± 0.21 | 49.65 ± 0.22 | 55.26 ± 0.11 |
| SO3 | 0 | 0 | 1.96 ± 0.46 | 0 |
| K2O | 0.98 ± 0.25 | 0 | 1.28 ± 0.13 | 0 |
| CaO | 0 | 0 | 10.92 ± 0.25 | 1.24 ± 0.42 |
| TiO2 | 2.43 ± 0.41 | 2.5 ± 0.21 | 2.74 ± 0.14 | 2.76 ± 0.25 |
| FeO | 12.41 ± 0.02 | 4.16 ± 0.21 | 10.62 ± 0.19 | 2.22 ± 0.17 |