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Table 2 Compressive strength fc, cube of the concrete mixtures M1–M5 in N/mm2 after 2 and 28 days under constant climate conditions at 20 °C and 65% relative moisture

From: Benthic community establishment on different concrete mixtures introduced to a German deep-water port

 

M1

M2

M3

M4

M5

2 days

43.5

40.1

41.1

41.7

43.5

28 days

59.1

58.4

56.4

60.4

72.0