ACI predicts flexural strength of reinforced concrete beams

The American Concrete Institute (ACI) has carried out a study to predict the flexural strength of corroded full-scale reinforced concrete (RC) beams.

The paper – Flexural Strength of Corroded Reinforced Concrete Beams – says two different concrete strength levels at two different steel ratios were tested for different corrosion levels ranging from 0 to 17%.

“An accelerated corrosion aging method was applied to corrode the reinforcing bars embedded in concrete. The actual corrosion levels were obtained by breaking the concrete and extracting the reinforcing bars,” ACI adds.

A practical model developed for the prediction of the flexural strength of corroded RC beams predicted the experimentally obtained flexural strength of corroded beams found in the literature.

According to ACI: “The results revealed that the structural behaviour of corroded RC beams requires consideration of the corrosion levels at both the tensile bars and the stirrups (which are more exposed to corrosion because of their use as outer reinforcing bars) and have significant effects on the flexural strength of corroded RC beams.”

This paper was written by H. Yalciner, A. Kumbasaroglu, A. K. El-Sayed, A. Pekrioglu Balk?s, E. Dogru, A. I. Turan, A. Karimi, R. Kohistani, M. F. Mermit, and K. Bicer.



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