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Table 5 Compressive strength development of concrete mixtures.

From: Comparison of Strength–Maturity Models Accounting for Hydration Heat in Massive Walls

Mixture Specimens Compressive strength (MPa) at different ages (days)
3 7 14 28 56 91
S5 Field-cured cylinder 21.5 37.9 50.9 58.9 67.5 75.8
Core (location drilled from walls) Top surface 32.4 49.2 61.9 65.3 65.5 66.7
Top center 34.4 48.5 62.8 66.0 66.6 67.0
Middle surface 36.6 51.4 64.7 68.3 68.3 69.7
Middle center 44.9 52.3 61.4 67.8 69.8 71.0
G50 Field-cured cylinder 18.4 37.5 45.5 53.4 55.4 58.9
Core (location drilled from walls) Top surface 27.8 44.2 50.2 62.6 63.4 65.4
Top center 35.9 50.0 56.0 63.5 64.6 65.7
Middle surface 29.4 43.7 56.4 65.5 65.5 67.1
Middle center 33.6 53.0 56.2 66.0 67.0 67.6
G65S5 Field-cured cylinder 30.7 45.3 52.2 55.4 55.1 58.3
Core (location drilled from walls) Top surface 32.7 48.4 54.5 56.2 56.8 58.3
Top center 43.3 54.9 57.0 60.6 58.3 60.6
Middle surface 35.8 48.3 55.8 59.7 61.3 62.8
Middle center 41.3 55.6 56.0 60.4 63.3 63.7