The relation between modulus of rupturefcr and characteristic strength of concrete fck is given by_______________?
(A) fcr=0.35Vf7
(B) fcr=0.57f7
(C) fcr=0.7Vf7
(D) fcr=1.2Vf7 where fcr and fck are in N/mm2′
The relation between modulus of rupturefcr and characteristic strength of concrete fck is given by_______________?
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