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Structural Engineering and Mechanics Volume 90, Number 5, June10 2024 , pages 481-492 DOI: https://doi.org/10.12989/sem.2024.90.5.481 |
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The effect of acid environment and thawing and freezing cycles on the mechanical behavior of fiber-reinforced concrete |
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A.R. Rahimi Chakdel, S.M. Mirhosseini, A.H. Joshagani and M.R.M. Aliha
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| Abstract | ||
| This research examined the mechanical behavior of fiber-reinforced concrete at unstable environmental conditions. Concrete composites with varying percentages of steel and glass fibers were analyzed. Compressive, indirect tensile, and fracture toughness properties were evaluated using the Edge Notched Disc Bend (ENDB) test under freezing-thawing and acidic environments and the results were compared with normal conditions. Steel fibers decreased the strength in the specified cycles, while glass fibers showed a normal strength trend. The compressive, tensile and fracture toughness of the samples containing 1.5 vol.% fibers showed a 1.28-, 2.13- and 4.5-fold enhancement compared to samples without fibers, after 300 freezing-thawing cycles, respectively. | ||
| Key Words | ||
| acid; ENDB; fiber combination; fibrous concrete; fracture toughness; freeze/thaw | ||
| Address | ||
| A.R. Rahimi Chakdel: Department of Civil Engineering, Arak Branch, Islamic Azad University, Arak, Iran S.M. Mirhosseini: Department of Civil Engineering, Arak Branch, Islamic Azad University, Arak, Iran A.H. Joshagani: Department of Chemical Engineering, Arak Branch, Islamic Azad University, Arak, Iran M.R.M. Aliha: Welding and Joining Research Center, School of Industrial Engineering, Iran University of Science and Technology (IUST), Narmak, 16846-13114, Tehran, Iran; Department of Mechanical Engineering, Engineering Faculty, Gebze Technical University, 41400 Gebze, Kocaeli, Turkey | ||