| Specimen number | Break off strength (MPa) | Increase rate of break off strength (%) |
| LC30V0 | 3.1 | 0 |
| LC30V0.5 | 3.5 | 12.9% |
| LC30V1.0 | 3.9 | 25.8% |
| LC30V2.0 | 4.7 | 51.6% |
| LC40V0 | 3.7 | 0 |
| LC40V0.5 | 4.2 | 13.5% |
| LC40V1.0 | 4.5 | 21.6% |
| LC40V2.0 | 5.7 | 54.0% |
| LC50V0 | 5.0 | 0 |
| LC50V0.5 | 5.7 | 14.0% |
| LC50V1.0 | 6.2 | 24.0% |
| LC50V2.0 | 7.6 | 52.0% |