Table 2 Design matrix of raw material proportions of soil and rice husk ash (RHA).
Mixture ID | Soil (wt%) | RHA (wt%) | Number of samples | Experimental response |
|---|---|---|---|---|
M1 | 85.7 | 14.3 | 2 | • Compressive strength • Young Modulus • Yield stress • Plastic work |
M2 | 80.0 | 20.0 | 2 | |
M3 (control) | 100.0 | 0.0 | 2 | |
M4 | 94.4 | 5.6 | 3 | |
M5 | 83.1 | 16.9 | 1 | |
M6 | 97.3 | 2.7 | 1 | |
M7 | 87.9 | 12.1 | 1 | |
M8 | 92.2 | 7.8 | 1 | |
M9 | 90.0 | 10.0 | 1 |
