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Steel and Composite Structures Volume 49, Number 3, November 10 2023 , pages 337-348 DOI: https://doi.org/10.12989/scs.2023.49.3.337 |
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Machine learning techniques for reinforced concret's tensile strength assessment under different wetting and drying cycles |
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Ibrahim Albaijan, Danial Fakhri, Adil Hussein Mohammed, Arsalan Mahmoodzadeh, Hawkar Hashim Ibrahim, Khaled Mohamed Elhadi and Shima Rashidi
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| Abstract | ||
| Successive wetting and drying cycles of concrete due to weather changes can endanger the safety of engineering structures over time. Considering wetting and drying cycles in concrete tests can lead to a more correct and reliable design of engineering structures. This study aims to provide a model that can be used to estimate the resistance properties of concrete under different wetting and drying cycles. Complex sample preparation methods, the necessity for highly accurate and sensitive instruments, early sample failure, and brittle samples all contribute to the difficulty of measuring the strength of concrete in the laboratory. To address these problems, in this study, the potential ability of six machine learning techniques, including ANN, SVM, RF, KNN, XGBoost, and NB, to predict the concrete's tensile strength was investigated by applying 240 datasets obtained using the Brazilian test (80% for training and 20% for test). In conducting the test, the effect of additives such as glass and polypropylene, as well as the effect of wetting and drying cycles on the tensile strength of concrete, was investigated. Finally, the statistical analysis results revealed that the XGBoost model was the most robust one with R2 = 0.9155, mean absolute error (MAE) = 0.1080 Mpa, and variance accounted for (VAF) = 91.54% to predict the concrete tensile strength. This work's significance is that it allows civil engineers to accurately estimate the tensile strength of different types of concrete. In this way, the high time and cost required for the laboratory tests can be eliminated. | ||
| Key Words | ||
| machine learning, reinforced concrete, steel-concrete composite, tensile strength, wetting‒drying cycles | ||
| Address | ||
| Ibrahim Albaijan:Mechanical Engineering Department, College of Engineering at Al-Kharj, Prince Sattam Bin Abdulaziz University, Al Kharj 16273, Saudi Arabia Danial Fakhri:Department of Applied Sciences, Universite du Quebec a Chicoutimi, Chicoutimi, QC, G7H 2B1, Canada Adil Hussein Mohammed:Department of Communication and Computer Engineering, Faculty of Engineering, Cihan University-Erbil, Kurdistan Region, Iraq Arsalan Mahmoodzadeh:IRO, Civil Engineering Department, University of Halabja, Halabja, 46018, Iraq Hawkar Hashim Ibrahim:Department of Civil Engineering, College of Engineering, Salahaddin University-Erbil, 44002 Erbil, Kurdistan Region, Iraq Khaled Mohamed Elhadi:Civil Engineering Department, College of Engineering, King Khalid University, Saudi Arabia Shima Rashidi:Department of Computer Science, College of Science and Technology, University of Human Development, Sulaymaniyah, Kurdistan Region, Iraq | ||