| Sample number | Length (mm) | Width (mm) | Compression area (cm2) | Compressive strength (Rc/MPa) | Failure load (P/KN) |
| Y-1 | 190 | 100 | 19,000 | 17.70 | 336.461 |
| W-1 | 200 | 100 | 20,000 | 14.25 | 285.010 |