Experimental and Numerical Study Assessing the Synergistic Effect of Metakaolin andWaste Glass on the Concrete Mechanical and Structural Properties
Yazarlar (6)
Ali Jahami
University Balamand
University Balamand
Hektor Frangieh
University Balamand
University Balamand
Joseph Assaad
University Balamand
University Balamand
Ahmad Alkhatib
University of Aleppo
University of Aleppo
Doç. Dr. Çiğdem AVCI KARATAŞ Yalova Üniversitesi, Türkiye
Nicola Chieffo
University of Huddersfield
University of Huddersfield
| Makale Türü |
Özgün Makale
(SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
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| Dergi Adı | Buildings (Q2) | ||
| Dergi ISSN | 2075-5309 Wos Dergi Scopus Dergi | ||
| Dergi Tarandığı Indeksler | SCI-Expanded | ||
| Makale Dili | İngilizce | Basım Tarihi | 09-2025 |
| Kabul Tarihi | – | Yayınlanma Tarihi | 04-09-2025 |
| Cilt / Sayı / Sayfa | 15 / 17 / 1–0 | DOI | 10.3390/buildings15173185 |
| Makale Linki | https://www.mdpi.com/2075-5309/15/17/3185 | ||
| Özet |
| This study presents a rigorous experimental and numerical investigation of the synergistic effect of metakaolin (MK) and waste glass (WG) on the structural performance of reinforced concrete (RC) beams without stirrups. A two-phase methodology was adopted: (i) optimization of MK and WG replacement levels through concrete-equivalent mortar mixtures and (ii) evaluation of the fresh and hardened properties of concrete, including compressive and tensile strengths, elastic modulus, sorptivity, and beam shear capacity. Five beam groups incorporating up to 30% MK, 15% WG, and 1% steel fiber were tested under four-point bending. The results demonstrated that MK enhanced compressive strength (up to 22%), WG improved workability but reduced ductility, and the combined system achieved a 13% increase in shear strength relative to the control. Steel fibers further restored ductility, increasing the ductility index from 1.338 for WG-only beams to 2.489. Finite Element Modeling (FEM) using ABAQUS with the Concrete Damage Plasticity (CDP) model reproduced experimental (EXP) load–deflection responses, peak loads, and crack evolution with high fidelity. This confirmed the predictive capability of the numerical framework. By integrating material-level optimization, structural-scale testing, and validated FEM simulations, this study provides robust evidence that MK–WG concrete, especially when fiber-reinforced, delivers mechanical, durability, and structural performance improvements. These findings establish a reliable pathway for incorporating sustainable cementitious blends into design-oriented applications, with direct implications for the advancement of performance-based structural codes. |
| Anahtar Kelimeler |
| sustainable concrete | waste glass aggregate | metakaolin | reinforced concrete beams | finite element modeling (ABAQUS) | steel fibers | earthquake-resistant design |
BM Sürdürülebilir Kalkınma Amaçları
| Atıf Sayıları |