| RHA | Rice Husk Ash |
| S | Soil |
| C | Cement |
| CBR | California Bearing Ratio |
| SEM | Scanning Electron Microscopy |
| EDS | Energy-Dispersive X-ray Spectroscopy |
| OMC | Optimum Moisture Content |
| MDD | Maximum Dry Density |
| RHA | Rice Husk Ash |
| S | Soil |
| C | Cement |
| CBR | California Bearing Ratio |
| SEM | Scanning Electron Microscopy |
| EDS | Energy-Dispersive X-ray Spectroscopy |
| OMC | Optimum Moisture Content |
| MDD | Maximum Dry Density |