Is there any numerical or empirical relation between compressive and bending stress of concrete?

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Baoshan Huang

The flexural strength of concrete = k*sqrt(compressive strength).

k=9 (for psi), or 0.74 (for MPa)

H. M.A. Mahzuz

Dear Mr. Baoshan Huang: Thanks for your answer, can you please help me more giving the reference of the answer?

Alejandro García Santibáñez

Dear Mr. Mahzuz,

Recently I have read this article. It gives relations between compressive, tensile and flexural strengths of SFRC. Among the references you will find many articles that include relations between mechanical properties of concrete, GFRC and PFRC.

Article Correlations among mechanical properties of steel fiber rein...