Table 1 Geotechnical properties of soil including chemical composition of soil and rice husk ash.
Geotechnical properties of soil | Chemical composition (%) | ||||||
|---|---|---|---|---|---|---|---|
Soil | RHA | Soil | RHA | ||||
Gravel (%) | 3.0 | Na2O | 1.38 | 0.67 | Cr2O3 | 0.03 | 0.07 |
Sand (%) | 52.3 | MgO | 1.84 | 0.77 | MnO | 0.13 | 0.35 |
Silt (%) | 22.3 | Al2O3 | 23.49 | 9.89 | Fe2O3 | 9.81 | 5.94 |
Clay (%) | 22.4 | SiO2 | 56.53 | 76.23 | ZnO | 0.02 | 0.02 |
Liquid limit (%) | 36.0 | P2O5 | 0.17 | 0.41 | SrO | 0.03 | 0.03 |
Plastic limit (%) | 25.0 | SO3 | 0.05 | 0.27 | ZrO2 | 0.06 | - |
Plasticity index (%) | 11.0 | Cl | 0.02 | 0.14 | Nb2O5 | 0.02 | - |
Humidity (%) | 2.3 | K2O | 2.23 | 2.25 | BaO | 0.08 | - |
Specific gravity (gr/cm3) | 2.59 | CaO | 2.66 | 2.20 | V2O5 | - | 0.02 |
USDA Classification | Sandy clay loam | TiO2 | 1.42 | 0.67 | Total | 100 | 100 |
