- ISSN 0258-2724
- CN 51-1277/U
- EI Compendex
- Scopus
- Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
- Chinese S&T Journal Citation Reports
- Chinese Science Citation Database
| Citation: | LI Fuhai, LI Zhou, ZHANG Yuxuan, HUO Jiateng, DING Yijun, CHEN Zhao. Study and Evaluation of Performance of Polymer Hybrid Fiber- Reinforced Cementitious Composites[J]. Journal of Southwest Jiaotong University. doi: 10.3969/j.issn.0258-2724.20250089
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To address the issues such as the high density and corrosion susceptibility of traditional steel-polymer fiber hybrid systems, the hybrid effects of three types of polymer fibers, namely polyvinyl alcohol (PVA) fibers, polypropylene (PP) fibers, and polyoxymethylene (POM) fibers, on the workability and mechanical properties of fiber-reinforced cementitious composites (FRCC) were investigated. A total of 12 groups of specimens were designed, including single fiber and different combinations of hybrid fibers, including PVA and POM, PVA and PP, and POM and PP. Flowability, compressive, bending, uniaxial tensile, and four-point bending tests were conducted. The performance of each group was systematically analyzed and comprehensively evaluated, while the hybrid fiber mechanism was also analyzed using a high-resolution optical microscope. The results have shown that hybrid fibers can effectively compensate for the shortcomings of single fibers, significantly enhancing the overall performance of FRCC. The flowability of A0.5M1.5P0 increases by 18.62% compared to the single PVA fiber. The bending strength of A1M1P0 is 14.53 MPa, a 24.94% improvement over the single POM fiber. The compressive strength of A0M1.5P0.5 is 73.33 MPa, a 25.50% increase over the single PP fiber. A1.5M0.5P0 exhibits the best tensile performance, with a tensile strength of 3.36 MPa and strain energy density of 54.2 kJ/m3, showing increases of 54.13% and
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