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. 2017 Aug 4;10(8):904. doi: 10.3390/ma10080904

Table 6.

Compressive strength classes determined according to NP EN 206-1 [31] (PC 65).

Mix Experimentally Obtained Values NP EN 206-1 Values
fcm.cyl fcm.cube fck.cyl fck.cube Class fck.cyl fck.cube
(MPa) (MPa)
100% NA 74.1 78.7 66.1 70.7 C55/67 55 67
25% RA 72.0 77.6 64.0 69.6 C55/67 55 67
50% RA 68.4 75.6 60.4 67.6 C55/67 55 67
100% CRA 66.5 74.2 58.5 66.2 C50/60 50 60
100% FRA 64.9 69.3 56.9 61.3 C50/60 50 60