Table 6 Measured physical and mechanical properties of UHPC mixes.
Mixture code | Slump (mm) | Dry density (kg/m3) | Compressive strength (MPa) | Splitting tensile strength (MPa) | Flexural strength (MPa) | Elastic modulus (GPa) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2d | 7d | 28d | 90d | 2d | 7d | 28d | 2d | 7d | 28d | ||||
Control | 205 | 2415 | 56 | 69.3 | 90 | 110 | 5.6 | 7.5 | 10.6 | 2.84 | 3.42 | 5 | 7.5 |
3 S | 185 | 2540 | 85 | 102 | 135 | 152 | 12.7 | 14.5 | 16 | 14.6 | 23.4 | 28 | 14.5 |
75 S-25P | 181 | 2529 | 89 | 105 | 138 | 155 | 12.9 | 15 | 17 | 15 | 24.4 | 30 | 15 |
50 S-50P | 174 | 2518 | 76.35 | 98 | 130 | 146 | 11.03 | 12.7 | 14.7 | 11.15 | 17.3 | 19 | 12.7 |
25 S-75P | 168 | 2489 | 69.3 | 85 | 120 | 133 | 10.4 | 11.4 | 13.5 | 7.2 | 9.03 | 12 | 11.4 |
3P | 160 | 2422 | 59 | 81 | 93 | 117 | 8.5 | 9.1 | 12 | 3.3 | 4.4 | 6 | 9.1 |
