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Research is a Step Closer to Predicting Performance of Fiber Reinforced Concrete Members

Posted: Mar 1, 2019

Many laboratory studies have shown erratic flexural strength among replicate fiber reinforced concrete (FRC) specimens, leading to unreliable claims about the performance of certain fiber reinforced concrete elements in the field.

Experimental average residual strength values obtained in this study confirms the issue of significant variability among replicates. Predictions obtained through the Monte Carlo simulation (a process to identify various outcomes and their probabilities) succeeded in quantifying the range of variability in average residual strength for some mixes but failed for others. Oversimplification of the underlying model of the Monte Carlo simulation is believed to be the main reason behind failed predictions. While not perfect, the Monte Carlo tool developed in this study can be used to get an idea about the average residual strength value of concrete members reinforced with steel fibers. This study will serve as a first step towards better understanding the flexural behavior of fiber reinforced concrete structural members. Consequently, it will aid in predicting its performance in the field.

Ahmad Ghadban, Ph.D.
South Dakota State University

Quantifying the Range of Variability in the Flexural Strength of Fiber Reinforced Concrete using Monte Carlo Simulation

NDSU Dept 2880P.O. Box 6050Fargo, ND 58108-6050