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+---- Thread: Modulus of rupture formula (/thread-39949.html)
Modulus of rupture formula - aradadi - 11-24-2012
Modulus of rupture:
fcr=0.7 √fck --IS-456 fck in N/mm2.
Fcr=0.623√f’c—ACI Code .
Use of lower value of fcr will result in more conservative (lower) estimate of cracking moment.