Academic Journal
Synergistic effects of fiber hybridization on the fracture toughness of seawater sea-sand concrete
| العنوان: | Synergistic effects of fiber hybridization on the fracture toughness of seawater sea-sand concrete |
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| المؤلفون: | Mashayekhi, Amirhesam, Hassanli, Reza, Zhuge, Yan, Ma, Xing, Chow, Christopher W.K., Bazli, Milad, Manalo, Allan |
| بيانات النشر: | Elsevier |
| سنة النشر: | 2024 |
| المجموعة: | University of Southern Queensland: USQ ePrints |
| مصطلحات موضوعية: | Fiber-reinforced concrete, Seawater, Sea-sand, Fracture toughness, Hybrid fiber, Synergy |
| الوصف: | This study investigates the fracture behavior of fiber-reinforced seawater sea-sand concrete (FR-SWSSC), focusing on the impact of fiber hybridization on fracture toughness properties and potential synergistic effects. The study employed micro-fibers including short polypropylene (PPS), polyvinyl alcohol (PVA), basalt fibers (BF), and macro-fibers consisting long polypropylene (PPL) and twisted polypropylene (TPPL) fibers. The results indicated that macro-fibers, PPL and TPPL, significantly enhanced the post-peak behavior of SWSSC, increasing fracture energy by 144 % and 93 % respectively, while micro-fibers alone showed negligible impact on the post-peak behavior. Micro-fiber hybridization significantly enhanced both flexural strength and fracture energy of SWSSC, with hybrid PPS/BF and PPS/PVA demonstrated notably improved fracture energy by 176 % and 290 %, respectively, compared to mono PPS. Hybrid combinations of micro/macro-fibers demonstrated a synergistic effect on fracture toughness, where PPL and TPPL fibers bridged larger cracks, activating micro-fibers for enhanced energy dissipation. Moreover, the strong interfacial bond of PVA and BF fibers with the concrete matrix improved macro-fiber bonding strength and overall fracture resistance. By exploring the synergistic effect of hybrid discrete fibers in enhancing the fracture performance of FR-SWSSC, this research promotes sustainable construction practices by addressing inherent challenges of SWSSC. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | unknown |
| Relation: | https://research.usq.edu.au/download/6a4249c8d4cabb6836bdf03a7075fa9ef215a76fe390df91a103a0a0dfdbc022/20255439/1-s2.0-S0950061824029878-main.pdf; https://doi.org/10.1016/j.conbuildmat.2024.137845; Mashayekhi, Amirhesam, Hassanli, Reza, Zhuge, Yan, Ma, Xing, Chow, Christopher W.K., Bazli, Milad and Manalo, Allan. 2024. "Synergistic effects of fiber hybridization on the fracture toughness of seawater sea-sand concrete." Construction and Building Materials. 444. https://doi.org/10.1016/j.conbuildmat.2024.137845 |
| DOI: | 10.1016/j.conbuildmat.2024.137845 |
| الاتاحة: | https://research.usq.edu.au/item/z99z5/synergistic-effects-of-fiber-hybridization-on-the-fracture-toughness-of-seawater-sea-sand-concrete https://doi.org/10.1016/j.conbuildmat.2024.137845 |
| Rights: | CC BY 4.0 |
| رقم الانضمام: | edsbas.850B7736 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1016/j.conbuildmat.2024.137845 |
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