Hybrid B-CSM Composites Strengthening Approach for Improved Stress–Strain Behavior of Concrete Columns and Development of Analytical Models

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dc.contributor.authorThansirichaisree, Phromphat
dc.contributor.authorMohamad, Hisham
dc.contributor.authorZhou, Mingliang
dc.contributor.authorEjaz, Ali
dc.contributor.authorSaingam, Panumas
dc.contributor.authorHussain, Qudeer
dc.contributor.authorJoyklad, Panuwat
dc.date.accessioned2026-08-06T10:50:31Z
dc.date.available2026-08-06T10:50:31Z
dc.date.issued2025-02-01
dc.description.abstractThe brittle behavior of concrete under axial compressive loading has been a persistent issue. This study investigates the effectiveness of a hybrid Basalt-E-glass confinement (B-CSM) in improving the compressive behavior of concrete. The B-CSM confinement demonstrates a considerable improvement in ultimate strength and strain capacity by over 250 and 500%, respectively, making it a favorable solution for enhancing the ductility of concrete structures. Specimens at 18.43 MPa unconfined strength, confined with 3-layer B-CSM, demonstrated a 258% ultimate strength enhancement. For 24.43 MPa specimens, the same confinement resulted in a 207% increase in ultimate strength. Specimens with an initial ultimate strain of 18.43 MPa, when confined with 3-layers, showed a notable 516% increase. Likewise, for 24.43 MPa specimens, the same confinement led to a significant 395% improvement in ultimate strain. The use of B-CSM confinement is also effective in terms of cost compared to synthetic fiber-reinforced polymer jackets, and its availability is widespread. Existing analytical models for fiber-reinforced polymer confinement were evaluated, and it was found that these models could not predict the ultimate strength and strain of B-CSM-confined concrete. Therefore, this study proposes a unique regression-based approach for predicting the various points of the compressive stress vs. strain curve of B-CSM confinement. These points are then used to trace the complete stress vs. strain curve, which matches closely with experimental results. This work contributes to the development of new design recommendations for B-CSM confined concrete structures, which can enhance the performance of concrete structures and potentially reduce construction costs.
dc.identifier.citationArabian Journal for Science and Engineering, 50(3), 1531-1553, 2025
dc.identifier.doi10.1007/s13369-024-08978-8
dc.identifier.issn2193567X
dc.identifier.other2-s2.0-85190761637
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/16804
dc.sourceArabian Journal for Science and Engineering
dc.subjectAnalytical modeling
dc.subjectAxial compression
dc.subjectBasalt
dc.subjectE-glass
dc.subjectFRP-confined concrete
dc.subjectUltimate strength
dc.titleHybrid B-CSM Composites Strengthening Approach for Improved Stress–Strain Behavior of Concrete Columns and Development of Analytical Models
dc.typeArticle

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