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. 2025 Dec 16;16:2450. doi: 10.1038/s41598-025-32316-z
Time [day] Comp. Strength [MPa] St. Deviation [MPa] Coeff. of Variation [%] Conversion Factors
cyl. cube size1 cube size 2 cyl. cube size1 cube size 2 cyl. cube size1 cube size 2 cu1 to
cyl.
cu2 to
cyl.
cu1 to
cu2
UHPC Type A – 2% steel fibers
0.6 16.0 18.5 13.6 1.0 0.6 0.4 2.1 0.8 0.4 0.87 1.18 1.37
0.7 29.1 29.4 18.7 1.6 1.4 2.0 5.4 4.0 8.4 0.99 1.56 1.57
0.9 33.2 27.4 32.2 2.1 1.2 1.2 8.8 3.0 3.1 1.21 1.03 0.85
1 47.3 42.9 44.8 1.3 1.1 1.2 3.3 2.3 3.2 1.10 1.06 0.96
2 68.4 55.1 36.4 0.4 2.3 2.3 0.3 10.9 10.7 1.24 1.88 1.51
3 83.0 67.7 42.6 3.0 1.5 0.8 18.9 4.4 1.3 1.23 1.95 1.59
7 97.4 69.5 66.3 1.4 1.5 0.5 4.0 4.9 0.5 1.40 1.47 1.05
14 104.2 81.2 80.8 0.1 2.6 4.0 0.0 14.4 33.3 1.28 1.29 1.00
28 114.1 89.7 79.8 5.6 1.6 5.1 66.7 5.2 53.5 1.27 1.43 1.12
Mean values: 1.8 1.5 1.9 12.2 5.6 12.7 1.18 1.43 1.22
UHPC Type B – 1% steel fibers
0.6 16.7 16.7 8.7 0.2 0.1 0.7 0.1 0.0 0.9 1.00 1.92 1.92
0.7 28.1 33.4 15.1 1.2 1.3 0.3 2.9 3.7 0.2 0.84 1.86 2.21
0.9 51.9 48.6 47.1 2.3 2.7 2.2 11.4 15.6 9.8 1.07 1.10 1.03
1 60.0 52.0 57.1 0.6 2.9 2.2 0.7 17.9 9.7 1.15 1.05 0.91
2 73.1 72.9 78.5 2.0 0.7 3.6 8.7 0.9 26.6 1.00 0.93 0.93
3 93.1 71.4 83.8 4.2 0.9 6.1 37.0 1.6 78.2 1.30 1.11 0.85
7 107.4 81.5 57.9 1.9 1.6 2.6 7.7 5.7 14.5 1.32 1.85 1.41
14 122.0 93.8 90.9 1.1 4.2 1.7 2.7 37.6 6.2 1.30 1.34 1.03
28 136.6 92.6 113.4 2.2 3.9 1.7 10.0 32.0 5.8 1.48 1.20 0.82
Mean values: 1.7 2.0 2.3 9.0 12.8 16.9 1.16 1.38 1.23
UHPC Type B – 2% steel fibers
0.6 25.9 48.5 10.6 0.4 1.0 0.4 0.3 2.0 0.4 0.53 2.44 4.58
0.7 48.7 52.0 29.5 3.6 2.8 1.8 26.8 16.2 6.9 0.94 1.65 1.76
0.8 61.5 56.2 37.6 3.2 2.4 1.6 21.6 12.5 5.6 1.09 1.64 1.49
1 63.1 66.0 58.6 3.6 0.0 1.0 26.5 0.0 2.2 0.96 1.08 1.13
2 84.0 65.3 81.9 1.4 4.6 4.3 4.1 44.9 38.6 1.29 1.03 0.80
3 90.6 82.7 102.4 3.4 6.2 7.4 24.5 80.7 114.6 1.10 0.88 0.81
7 107.5 80.0 94.8 4.8 1.6 1.7 47.4 5.5 5.8 1.34 1.13 0.84
14 123.5 87.3 83.7 7.9 1.0 1.7 131.8 2.0 5.7 1.41 1.48 1.04
28 134.0 96.6 105.4 3.4 3.3 7.5 24.1 22.8 117.2 1.39 1.27 0.92
Mean values: 3.5 2.5 3.0 34.1 20.7 33.0 1.12 1.40 1.49
UHPC Type C – 1% steel fibers
0.6 7.2 10.8 4.9 0.5 0.5 0.2 0.4 0.6 0.1 0.67 1.47 2.19
0.7 11.0 12.2 7.8 0.4 0.7 0.4 0.3 1.2 0.3 0.90 1.42 1.58
0.9 27.7 22.5 15.7 2.0 0.8 0.4 8.7 1.3 0.4 1.23 1.76 1.43
1 63.6 67.2 48.4 5.2 3.5 3.2 55.8 25.8 21.8 0.95 1.31 1.39
2 105.8 93.5 90.6 3.5 4.8 1.5 25.7 48.7 4.7 1.13 1.17 1.03
3 111.0 87.3 88.0 4.8 6.1 3.2 47.4 76.9 21.4 1.27 1.26 0.99
7 109.0 91.9 78.2 2.6 2.8 4.5 13.9 16.0 41.6 1.19 1.39 1.18
14 122.8 102.4 86.5 3.9 2.4 4.6 31.2 12.2 43.9 1.20 1.42 1.18
28 147.7 119.2 111.5 1.8 5.7 7.3 6.7 68.8 111.2 1.24 1.32 1.07
Mean values: 2.7 3.0 2.8 21.1 27.9 27.3 1.09 1.39 1.34
UHPC Type C – 2% steel fibers
0.6 27.1 34.4 33.6 2.4 2.8 2.7 11.6 16.7 14.7 0.79 0.81 1.03
0.8 39.3 46.6 37.9 3.0 1.1 2.7 18.6 2.4 15.0 0.84 1.04 1.23
0.9 66.0 54.8 62.6 3.6 1.5 5.0 26.6 4.4 52.5 1.20 1.05 0.87
1 94.8 63.2 92.8 3.6 2.5 2.3 27.3 12.6 11.0 1.50 1.02 0.68
2 111.8 83.9 102.9 3.0 1.0 4.6 19.2 2.3 43.9 1.33 1.09 0.82
3 112.1 79.6 104.4 2.9 1.3 2.7 17.2 3.7 15.2 1.41 1.07 0.76
7 126.9 96.7 105.8 1.5 4.3 1.0 4.8 39.7 2.0 1.31 1.20 0.91
14 134.0 103.2 117.2 2.4 3.6 3.5 11.8 26.9 26.3 1.30 1.14 0.88
28 140.3 115.8 141.7 4.3 4.5 5.3 38.7 42.4 59.7 1.21 0.99 0.82
Mean values: 2.9 2.5 3.3 19.5 16.8 26.7 1.21 1.05 0.89
UHPC Type D – 2% steel fibers
0.9 3.1 4.4 5.5 0.1 0.4 0.1 0.0 0.3 0.0 0.71 0.56 0.79
1 9.4 11.3 15.6 0.7 0.6 0.6 1.0 0.8 0.9 0.83 0.60 0.73
1.5 57.8 54.2 61.1 1.3 1.0 2.0 3.4 2.0 8.7 1.07 0.95 0.89
2 72.3 56.3 68.1 2.7 4.0 3.4 14.8 34.3 24.8 1.28 1.06 0.83
3 86.1 62.4 81.5 3.9 1.1 0.0 31.9 2.4 0.0 1.38 1.06 0.77
7 106.1 90.1 103.3 3.0 6.6 5.1 18.4 91.9 55.2 1.18 1.03 0.87
14 136.2 112.8 129.6 1.6 2.5 2.2 5.4 13.4 10.5 1.21 1.05 0.87
28 141.5 118.4 143.1 5.7 5.2 3.2 67.8 56.3 21.2 1.20 0.99 0.83
Mean values: 2.3 2.7 2.1 17.8 25.2 15.2 1.11 0.91 0.82
UHPC Type E1 – 2% steel fibers without accelerator
1 2.9 4.9 7.1 0.2 0.2 0.6 0.1 0.1 0.7 0.59 0.41 0.69
2 59.3 52.3 55.3 0.6 2.8 0.8 0.6 16.5 1.5 1.13 1.07 0.95
3 78.8 71.0 64.8 1.2 0.8 3.9 3.2 1.3 31.2 1.11 1.22 1.10
7 115.4 93.4 107.3 1.4 1.2 0.3 4.3 2.9 0.2 1.24 1.08 0.87
15 124.5 113.9 103.8 3.0 0.1 0.9 18.6 0.0 1.6 1.09 1.20 1.10
28 143.8 124.0 115.6 1.0 4.8 8.2 2.0 48.9 141.7 1.16 1.24 1.07
Mean values: 1.2 1.6 2.4 4.8 11.6 29.5 1.05 1.04 0.96
UHPC Type E2 – 2% steel fibers with accelerator
0.6 7.7 7.0 7.4 0.0 0.0 0.5 0.0 0.0 0.5 1.09 1.03 0.95
0.8 22.8 18.7 14.2 0.5 1.2 1.0 0.6 3.1 2.2 1.22 1.61 1.32
1 42.3 39.4 36.7 1.8 1.3 1.6 7.0 3.3 5.4 1.07 1.15 1.07
1.2 53.1 42.1 46.3 0.3 0.0 0.9 0.3 0.0 1.7 1.26 1.15 0.91
2 92.1 71.0 92.7 2.4 0.3 3.2 12.1 0.2 21.3 1.30 0.99 0.77
3 100.0 83.9 103.2 3.3 0.1 3.9 22.5 0.0 32.1 1.19 0.97 0.81
7 128.9 95.9 110.0 0.9 6.0 9.1 1.9 74.4 172.3 1.34 1.17 0.87
14 149.9 118.1 138.1 2.5 8.9 9.2 12.9 168.0 176.9 1.27 1.09 0.85
28 156.8 127.4 113.3 6.5 0.6 8.6 87.8 0.8 154.8 1.23 1.38 1.12
Mean values: 2.0 2.0 4.2 16.1 27.7 63.0 1.22 1.17 0.96
Overall Mean: 2.3 2.2 2.8 16.8 18.5 28.0 1.14 1.22 1.11