Correspondence mark concrete class


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Correspondence mark concrete class

 

 

 

Concrete mark Concrete class (C140-86) Concrete class (NE 012-99) Cylinder compressive strength (Fck [N/mm2]) Cube compressive strength (Fck [N/mm2])
B50 Bc 3.5 C 2.8/3.5 2.8 3.5
B75 Bc 5 C 4/5 4 5
B100 Bc 7.5 C 6/7.5 6 7.5
B150 Bc 10 C 8/10 8 10
B200 Bc 15 C12/15 12 15
B250 Bc 20 C 16/20 16 20
B300 Bc 22.5 C 18/22.5 18 22.5
B330 Bc 25 C 20/25 20 25
B400 Bc 30 C 25/30 25 30
B450 Bc 35 C 28/35 28 35
C 30/37 30 37
C 35/45 35 45
B500 Bc 40 C 32/40 32 40
B600 Bc 50 C 40/50 40 50
C 45/55 45 55
B700 Bc 60 C 50/60 50 60
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