Study and Evaluation of Performance of Polymer Hybrid Fiber- Reinforced Cementitious Composites
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摘要:
针对传统钢-聚合物纤维混杂体系密度大、易腐蚀等问题，探讨PVA纤维、PP纤维和POM纤维3种聚合物纤维的混杂效应对纤维增强水泥基复合材料(FRCC)工作性能和力学性能的影响. 设计12组试件，包括单掺纤维和PVA与POM、PVA与PP、POM与PP纤维混杂的不同组合，进行流动度、抗压、抗折、单轴拉伸及四点抗弯测试，系统分析各组性能并进行综合性评估，同时，结合光学高倍显微镜分析混杂纤维的作用机理. 结果表明：混杂纤维能够有效弥补单一纤维的不足，显著提升FRCC的综合性能. A0.5M1.5P0流动度较单掺PVA纤维增加18.62%，A1M1P0抗折强度为14.53 MPa，较单掺POM纤维提升24.94%；A0M1.5P0.5抗压强度为73.33 MPa，较单掺PP纤维提升25.50%；A1.5M0.5P0具有最佳的拉伸性能，拉伸强度为3.36 MPa，应变能密度为54.2 kJ/m3，较单掺POM纤维分别提升54.13%、
2158.33 %；A1M1P0抗弯强度为9.03 MPa，较单掺PVA纤维提升51.26%，等效弯曲强度为3.89 MPa，较单掺POM纤维增加77.63%；基于雷达图综合评估，A1.5M0.5P0显示出最优的综合性能；具备不同物理性能的2种纤维在混杂掺入后产生协同作用，如PVA纤维限制基体裂缝扩展，而POM纤维在裂缝扩展过程中通过形变耗散能量，二者协同增强了复合材料的韧性和承载能力.-
关键词:
- 纤维增强水泥基复合材料 /
- 聚合物纤维 /
- 纤维混杂 /
- 工作性能 /
- 力学性能
Abstract: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
2158.33 %, respectively, compared to the single POM fiber. The bending strength of A1M1P0 is 9.03 MPa, a 51.26% improvement over the single PVA fiber, while the equivalent bending strength of 3.89 MPa shows a 77.63% increase over the single POM fiber. Based on the comprehensive evaluation of the radar chart, A1.5M0.5P0 exhibits the best overall performance. Two fibers with different physical properties produce a synergistic effect when hybridized. For example, PVA fibers limit crack propagation, while POM fibers dissipate energy through deformation during crack propagation. The synergy of PVA and POM fibers enhances the toughness and load-bearing capacity of the composite material. -
表 1 纤维性能指标
Table 1. Fiber performance indicators
纤维名称 纤维形态 长度/mm 直径/μm 密度/（g•cm−3） 抗拉强度/MPa 弹性模量/GPa 断裂拉伸率/% PVA纤维 长直状 12 35～45 1.3 ≥ 1500 ≥35 ≤7 PP纤维 长直状 12 20 0.91 ≥480 ≥5 ≥15 POM纤维 长直状 6 200 1.4 ≥ 1170 ≥17 ≥13 
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表 2 基础配合比
Table 2. Basic mix ratio
% ω（水泥） W（粉煤灰） ω（水） ω（减水剂） φ（纤维） 1.0 0.54 0.37 0.01 2.0
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表 3 混杂纤维设计
Table 3. Design of hybrid fiber
% 组名 φ（PVA） φ（POM） φ（PP） φ（总纤维） A2M0P0 2.0 0 0 2.0 A0M2P0 0 2.0 0 2.0 A0M0P2 0 0 2.0 22.0 A0.5M1.5P0 0.5 1.5 0 2.0 A1M1P0 1.0 1.0 0 2.0 A1.5M0.5P0 1.5 0.5 0 2.0 A0.5M0P1.5 0.5 0 1.5 2.0 A1M0P1 1.0 0 1.0 2.0 A1.5M0P0.5 1.5 0 0.5 2.0 A0M0.5P1.5 0 0.5 1.5 2.0 A0M1P1 0 1.0 1.0 2.0 A0M1.5P0.5 0 1.5 0.5 2.0
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表 4 各配合比价格
Table 4. Prices of each mix ratio
元 组别 A2
M0P0A0
M2P0A0
M0P2A0.5
M1.5P0A1
M1P0A1.5
M0.5P0A0.5
M0P1.5A1
M0P1A1.5
M0P0.5A0
M0.5P1.5A0
M1P1A0
M1.5P0.5价格 2808.2 3148.2 2301.2 3063.2 2978.2 2893.2 2427.95 2554.7 2681.45 2512.95 2724.7 2936.45
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[1] SHI J H, HAN J P, XU J X. Effect of fiber constituent in matrix on cyclic behavior of PVA-Steel hybrid Fiber-Reinforced cementitious composites columns with mild steel rebar[J]. Construction and Building Materials, 2022, 359: 129514. doi: 10.1016/j.conbuildmat.2022.129514 [2] ZHAO P T, HUANG Y, LIU Z Z, et al. Experimental study on seismic performance of hybrid steel-polypropylene fiber-reinforced recycled aggregate concrete-filled circular steel tube columns[J]. Construction and Building Materials, 2022, 359: 129418. doi: 10.1016/j.conbuildmat.2022.129418 [3] DENG F Q, CHI Y, XU L H, et al. Constitutive behavior of hybrid fiber reinforced concrete subject to uniaxial cyclic tension: Experimental study and analytical modeling[J]. Construction and Building Materials, 2021, 295: 123650. doi: 10.1016/j.conbuildmat.2021.123650 [4] BANTHIA N, GUPTA R. Hybrid fiber reinforced concrete (HyFRC): fiber synergy in high strength matrices[J]. Materials and Structures, 2004, 37(10): 707-716. doi: 10.1007/BF02480516 [5] PAKRAVAN H R, LATIFI M, JAMSHIDI M. Hybrid short fiber reinforcement system in concrete: a review[J]. Construction and Building Materials, 2017, 142: 280-294. doi: 10.1016/j.conbuildmat.2017.03.059 [6] 王振波, 王鹏宇, 朱凤强, 等. 混杂纤维ECC的纤维分布规律及力学性能研究[J]. 华中科技大学学报(自然科学版), 2023, 51(7): 84-89.WANG Zhenbo, WANG Pengyu, ZHU Fengqiang, et al. Study on the fiber distribution and mechanical properties of hybrid fiber ECC[J]. Journal of Huazhong University of Science and Technology (Natural Science Edition), 2023, 51(7): 84-89. [7] ABBASS W, IQBAL KHAN M. Experimental and numerical investigation of flexural behavior of hybrid fiber reinforced high strength incorporating binary and ternary blend of ultra fines[J]. Structures, 2022, 42: 53-64. doi: 10.1016/j.istruc.2022.05.116 [8] DING Y N, GUO W, LI D S, et al. Exploring the effect of polyoxymethylene fiber on concrete toughness and self-sensing capability of concrete cracking under bending[J]. Construction and Building Materials, 2024, 454: 138933. doi: 10.1016/j.conbuildmat.2024.138933 [9] HOSSEINZADEH H, MASOUD SALEHI A, MEHRAEIN M, et al. The effects of steel, polypropylene, and high-performance macro polypropylene fibers on mechanical properties and durability of high-strength concrete[J]. Construction and Building Materials, 2023, 386: 131589. doi: 10.1016/j.conbuildmat.2023.131589 [10] 于海洋, 李地红, 代函函, 等. 混杂纤维增强应变硬化水泥基复合材料的弯曲性能研究[J]. 材料导报, 2020, 34(增1): 229-233.YU Haiyang, LI Dihong, DAI Hanhan, et al. Study on bending properties of hybrid fiber reinforced strain hardening cementitious composites[J]. Materials Review, 2020, 34(S1): 229-233. [11] DELATTE N J, FOWLER D W, MCCULLOUGH B F. Full-scale test of high early strength bonded concrete overlay design and construction methods[J]. Transportation Research Record: Journal of the Transportation Research Board, 1996, 1544(1): 9-16. doi: 10.1177/0361198196154400102 [12] BALOUCH S U, FORTH J P, GRANJU J L. Surface corrosion of steel fibre reinforced concrete[J]. Cement and Concrete Research, 2010, 40(3): 410-414. doi: 10.1016/j.cemconres.2009.10.001 [13] TENG S, AFROUGHSABET V, OSTERTAG C P. Flexural behavior and durability properties of high performance hybrid-fiber-reinforced concrete[J]. Construction and Building Materials, 2018, 182: 504-515. doi: 10.1016/j.conbuildmat.2018.06.158 [14] AFROUGHSABET V, BIOLZI L, MONTEIRO P J M. The effect of steel and polypropylene fibers on the chloride diffusivity and drying shrinkage of high-strength concrete[J]. Composites Part B: Engineering, 2018, 139: 84-96. doi: 10.1016/j.compositesb.2017.11.047 [15] 陈宝春, 林毅焌, 杨简, 等. 超高性能纤维增强混凝土中纤维作用综述[J]. 福州大学学报(自然科学版), 2020, 48(1): 58-68. doi: 10.7631/issn.1000-2243.19007CHEN Baochun, LIN Yijun, YANG Jian, et al. Review on fiber function in ultra-high performance fiber reinforced concrete[J]. Journal of Fuzhou University (Natural Science Edition), 2020, 48(1): 58-68. doi: 10.7631/issn.1000-2243.19007 [16] ZHENG Y, ZHANG L F, XIA L P. Investigation of the behaviour of flexible and ductile ECC link slab reinforced with FRP[J]. Construction and Building Materials, 2018, 166: 694-711. doi: 10.1016/j.conbuildmat.2018.01.188 [17] Wang Z, Guo R, Liu G, et al. Study on Flexural Fatigue Properties of POM Fiber Airport Pavement Concrete[J]. Polymers, 2022, 14(15): 2979. [17] WANG Z H, GUO R X, LIU G S, et al. Study on flexural fatigue properties of POM fiber airport pavement concrete[J]. Polymers, 2022, 14(15): 2979. [18] BANYHUSSAN Q S, YıLDıRıM G, BAYRAKTAR E, et al. Deflection-hardening hybrid fiber reinforced concrete: The effect of aggregate content[J]. Construction and Building Materials, 2016, 125: 41-52. doi: 10.1016/j.conbuildmat.2016.08.020 [19] ALMUSALLAM T H, ABADEL A A, AL-SALLOUM Y A, et al. Effectiveness of hybrid-fibers in improving the impact resistance of RC slabs[J]. International Journal of Impact Engineering, 2015, 81: 61-73. doi: 10.1016/j.ijimpeng.2015.03.010 [20] DAWOOD E T, RAMLI M. Mechanical properties of high strength flowing concrete with hybrid fibers[J]. Construction and Building Materials, 2012, 28(1): 193-200. doi: 10.1016/j.conbuildmat.2011.08.057 [21] 国家市场监督管理总局, 国家标准化管理委员会. 水泥胶砂强度检验方法(ISO法): GB/T 17671—2021[S]. 北京: 中国标准出版社, 2021. [22] 中华人民共和国国家质量监督检验检验总局, 中国国家标准化管理委员会. 水泥胶砂流动度测定方法: GB/T 2419—2005[S]. 北京: 中国标准出版社, 2005. [23] 司雯, 曹明莉, 冯嘉琪. 纤维增强水泥基复合材料的流动性与流变性研究进展[J]. 材料导报, 2019, 33(5): 819-825.SI Wen, CAO Mingli, FENG Jiaqi. Advances in research on flowability and rheological properties of fiber reinforced cementitious composites[J]. Materials Review, 2019, 33(5): 819-825. [24] WANG S X, LI V C. Engineered cementitious composites with high-volume fly ash[J]. Aci Materials Journal, 2007, 104: 233-241. doi: 10.14359/18668 [25] YU K Q, DING Y, LIU J P, et al. Energy dissipation characteristics of all-grade polyethylene fiber-reinforced engineered cementitious composites (PE-ECC)[J]. Cement and Concrete Composites, 2020, 106: 103459. doi: 10.1016/j.cemconcomp.2019.103459 [26] YU K Q, ZHU W J, DING Y, et al. Micro-structural and mechanical properties of ultra-high performance engineered cementitious composites (UHP-ECC) incorporation of recycled fine powder (RFP)[J]. Cement and Concrete Research, 2019, 124: 105813. doi: 10.1016/j.cemconres.2019.105813 [27] 巩妮娜, 柳文淑, 蔡小宁, 等. 工程用水泥基复合材料抗拉及抗弯性能研究与评估[J]. 采矿与安全工程学报, 2025, 42(6): 1434-1442.GONG Nina, LIU Wenshu, CAI Xiaoning, et al. Research and evaluation of tensile and flexural properties of engineered cementitious composite[J]. Journal of Mining & Safety Engineering, 2025, 42(6): 1434-1442. [28] Japan Society of Civil Engineers. Method of test for flexural strength and flexural toughness of fiber reinforced concrete (SF-4)[S]. Tokyo: JSCE, 1984. [29] 高丹盈, 赵亮平, 冯虎, 等. 钢纤维混凝土弯曲韧性及其评价方法[J]. 建筑材料学报, 2014, 17(5): 783-789. doi: 10.3969/j.issn.1007-9629.2014.05.006GAO Danying, ZHAO Liangping, FENG Hu, et al. Flexural toughness and it’s evaluation method of steel fiber reinforced concrete[J]. Journal of Building Materials, 2014, 17(5): 783-789. doi: 10.3969/j.issn.1007-9629.2014.05.006 [30] 张品乐, 邓让, 胡静, 等. 钢-PVA混杂纤维增强工程水泥基复合材料弯曲性能研究[J]. 硅酸盐通报, 2023, 42(9): 3125-3134. doi: 10.16552/j.cnki.issn1001-1625.2023.09.008ZHANG Pinle, DENG Rang, HU Jing, et al. Flexural performance of steel-PVA hybrid fiber engineered cementitious composites[J]. Bulletin of the Chinese Ceramic Society, 2023, 42(9): 3125-3134. doi: 10.16552/j.cnki.issn1001-1625.2023.09.008 [31] 何松松, 焦楚杰, 欧旭. 高强抗冻透水混凝土的配合比设计与性能评估[J]. 材料导报, 2023, 37(21): 132-138. doi: 10.11896/cldb.23070257HE Songsong, JIAO Chujie, OU Xu. Mix design and performance evaluation of high strength freeze-resistantPervious concrete[J]. Materials Reports, 2023, 37(21): 132-138. doi: 10.11896/cldb.23070257 [32] PAN Z F, WU C, LIU J Z, et al. Study on mechanical properties of cost-effective polyvinyl alcohol engineered cementitious composites (PVA-ECC)[J]. Construction and Building Materials, 2015, 78: 397-404. doi: 10.1016/j.conbuildmat.2014.12.071 [33] YU R, LIU K N, YIN T Y, et al. Comparative study on the effect of steel and polyoxymethylene fibers on the characteristics of Ultra-High Performance Concrete (UHPC)[J]. Cement and Concrete Composites, 2022, 127: 104418. doi: 10.1016/j.cemconcomp.2022.104418 [34] LÓPEZ-BUENDÍA A M, ROMERO-SÁNCHEZ M D, CLIMENT V, et al. Surface treated polypropylene (PP) fibres for reinforced concrete[J]. Cement and Concrete Research, 2013, 54: 29-35. doi: 10.1016/j.cemconres.2013.08.004 -
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