Table 2.
Summary of calculated statistical metrics for different compression test specimens, and conversion factors among different shapes and sizes.
| UHPC Type | St. Deviation [MPa] | Coeff. of Variation [%] | Conversion Factors | ||||||
|---|---|---|---|---|---|---|---|---|---|
| cylinder | cube size 1 | cube size 2 | cylinder | cube size 1 | cube size 2 | cube 1 to cyl. | cube 2 to cyl. | cube 1 to cube 2 | |
| Site-cured specimens | |||||||||
| A – 2% SFs | 2.7 | 2.9 | 2.3 | 15.2 | 32.4 | 17.9 | 1.19 | 1.59 | 1.37 |
| B1–1% SFs | 0.7 | 2.5 | 2.9 | 1.7 | 13.3 | 24.2 | 1.10 | 1.10 | 0.99 |
| B2–2% SFs | 2.0 | 3.5 | 3.3 | 13.9 | 29.2 | 23.6 | 1.23 | 1.11 | 0.90 |
| C1–1% SFs | 1.9 | 2.0 | 3.3 | 12.0 | 11.6 | 33.2 | 1.01 | 1.42 | 1.45 |
| C2–2% SFs | 1.8 | 3.4 | 2.7 | 9.6 | 28.7 | 15.0 | 1.34 | 1.15 | 0.86 |
| D – 2% SFs | 1.3 | 1.2 | 1.4 | 5.4 | 3.7 | 5.4 | 1.35 | 1.24 | 0.94 |
| E1–2% SFs w/o acc | 1.8 | 2.1 | 2.3 | 11.7 | 13.7 | 18.7 | 0.96 | 1.00 | 1.04 |
| E2–2% SFs w/acc | 1.4 | 2.3 | 1.8 | 6.0 | 24.2 | 16.7 | 1.13 | 0.93 | 0.84 |
| Mean site cured | 1.7 | 2.5 | 2.5 | 9.4 | 19.6 | 19.3 | 1.16 | 1.19 | 1.05 |
| Lab-cured specimens | |||||||||
| A – 2% SFs | 1.8 | 1.5 | 1.9 | 12.2 | 5.6 | 12.7 | 1.18 | 1.43 | 1.22 |
| B1–1% SFs | 1.7 | 2.0 | 2.3 | 9.0 | 12.8 | 16.9 | 1.16 | 1.38 | 1.23 |
| B2–2% SFs | 3.5 | 2.5 | 3.0 | 34.1 | 20.7 | 33.0 | 1.12 | 1.40 | 1.49 |
| C1–1% SFs | 2.7 | 3.0 | 2.8 | 21.1 | 27.9 | 27.3 | 1.09 | 1.39 | 1.34 |
| C2–2% SFs | 2.9 | 2.5 | 3.3 | 19.5 | 16.8 | 26.7 | 1.21 | 1.05 | 0.89 |
| D – 2% SFs | 2.3 | 2.7 | 2.1 | 17.8 | 25.2 | 15.2 | 1.11 | 0.91 | 0.82 |
| E1–2% SFs w/o acc | 1.2 | 1.6 | 2.4 | 4.8 | 11.6 | 29.5 | 1.05 | 1.04 | 0.96 |
| E2–2% SFs w/acc | 2.0 | 2.0 | 4.2 | 16.1 | 27.7 | 63.0 | 1.22 | 1.17 | 0.96 |
| Mean lab cured | 2.3 | 2.2 | 2.8 | 16.8 | 18.5 | 28.0 | 1.14 | 1.22 | 1.11 |
| Overall mean | 2.0 | 2.4 | 2.6 | 13.1 | 19.1 | 23.7 | 1.15 | 1.21 | 1.08 |