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Digital Image Correlation to Characterize the Tensile Behavior of the Polypropylene and Forta-Ferro Fiber-Reinforced Concrete by Seyed Hamid Kalali; Hamid Eskandari-Naddaf; Ali Kooshkaki is a Engineering article available to read on EtoBox.

What is Digital Image Correlation to Characterize the Tensile Behavior of the Polypropylene and Forta-Ferro Fiber-Reinforced Concrete about?

This study aims to compare the effects of adding macro-and micro-fiber on the tensile strength of concrete, as well as investigate the efficiency of the digital image correlation (DIC) method in detecting crack propagation and measuring cracks' width. For this purpose, 150 mm 3 cubic specimens were fabricated in seven different mix designs, including one control specimen, specimens containing 0.2%, 0.3%, and 0.4% polypropylene (PP) fibers, and 0.1% and 0.2% Forta-Ferro (FF) fibers. This study employed the Brazilian test as an indirect tensile test. Furthermore, the DIC method was utilized to observe the initiation and propagation of tensile cracks and measure their width. The experimental results showed that the tensile splitting strength increases by up to 13% and 20%, respectively, when even a low percentage of PP/FF as micro/macro-fibers is added. However, the usage of FF fibers leads to a more significant improvement in mechanical properties. Moreover, the effect of adding fibers on the deflection at the peak load was compared, and it was demonstrated that the deflection of the specimens at the peak load increased by approximately 10% and 20% for PP and FF specimens, respective

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Author

Seyed Hamid Kalali; Hamid Eskandari-Naddaf; Ali Kooshkaki

Publisher

Springer Science and Business Media LLC

Published

2023

Language

EN

Field

Engineering (Physical Sciences)