| Property | Sample (A) | B | C | Average |
| Compressive strength (kg/cm2) | 420 | 358.0 | 408.5 | 397.83 |
| Bending strength (kg/cm2) | 377 | 489.0 | 491.0 | 489.16 |
| tensile strength (kg/cm2) | 450 | 137.0 | 90.9 | 104.66 |