纺织学报 ›› 2021, Vol. 42 ›› Issue (04): 177-183.doi: 10.13475/j.fzxb.20200303507

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纤维对水泥基复合材料性能影响研究进展

陆振乾1, 杨雅茹2, 荀勇3()   

  1. 1.盐城工学院 纺织服装学院, 江苏 盐城 224051
    2.嘉兴学院 材料与纺织工程学院,浙江 嘉兴 314001
    3.盐城工学院 土木工程学院, 江苏 盐城 224051
  • 收稿日期:2020-03-13 修回日期:2021-01-06 出版日期:2021-04-15 发布日期:2021-04-20
  • 通讯作者: 荀勇
  • 作者简介:陆振乾(1980—),男,副教授,博士。主要研究方向为纺织复合材料。
  • 基金资助:
    国家自然科学基金项目(51478408)

Research review of fiber effect on properties of cement-based composite

LU Zhenqian1, YANG Yaru2, XUN Yong3()   

  1. 1. College of Textiles and Clothing, Yancheng Institute of Technology, Yancheng, Jiangsu 224051, China
    2. College of Material and Textile Engineering, Jiaxing University, Jiaxing, Zhejiang 314001, China
    3. College of Civil Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu 224051, China
  • Received:2020-03-13 Revised:2021-01-06 Online:2021-04-15 Published:2021-04-20
  • Contact: XUN Yong

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摘要：

为拓宽纤维材料在水泥基复合材料上的应用,促进超高韧性纤维增强水泥基复合材料的发展,对目前国内外纤维性能对水泥基复合材料性能影响的研究进展进行综述。首先,介绍了纤维增强混凝土的种类及增强增韧机制,认为纤维桥接作用可阻止裂纹产生和扩展,显著提高混凝土的拉伸强度和延展性能。其次,分析了混凝土领域常用有机纤维和无机纤维的性能特征;然后对影响纤维增强混凝土性能的因素进行归纳与总结,从混杂纤维、纤维形态、体积分数、纤维排列方向以及纤维粘结性能对复合材料性能的影响关系进行分析。最后,指出纤维增强混凝土研究中亟待解决的问题,并展望了未来纤维增强混凝土的发展趋势。

关键词: 纤维增强混凝土, 水泥基复合材料, 超高韧性, 力学性能, 增强增韧机制

Abstract:

In order to broaden the application of fiber materials in cement-based composites and to promote the development of ultra high toughness cement-based composite, the research progress on the effect of fiber properties on cement-based composite properties in China and abroad was reviewed. Firstly, the types of fiber reinforced concrete and the mechanism of strengthening and toughening were introduced. It is noted that fiber bridging can prevent the crack generation and expansion, and significantly improve the tensile strength and ductility of concrete. Secondly, the performance characteristics of organic fiber and inorganic fiber used in concrete field were analyzed. Then, the factors affecting the performance of fiber-reinforced concrete were summarized, and the influences of hybrid fibers, fiber morphology, volume fraction, fiber arrangement direction and fiber bonding property on the performance of composite materials were analyzed and summarized. Finally, the problems needing to be solved in the research of fiber reinforced concrete were highlighted and the development trend of fiber reinforced concrete in the future was forecasted.

Key words: fiber reinforced concete, cement-based composite, ultra high toughness, mechanical property, strengthening and toughening mechanism

中图分类号: 

  • TB332

表1

常用于增强混凝土的纤维的性能"

纤维名称 拉伸强度/
MPa		 拉伸模量/
GPa		 断裂伸长
率/%		 密度/
(g·cm-3)
聚乙烯醇 900~1 900 25~42 6~10 1.30
聚丙烯 240~690 3~5 25~50 0.91
对位芳纶 3 000 60~130 2.1~4.0 1.40
超高分子量聚乙
烯纤维		 2 000~3 500 50~125 3~6 0.97
剑麻 600~700 20~38 2~3 1.33
抗碱玻璃纤维 2 500 70 3.6 2.78
碳纤维 3 500~6 000 230~600 1.5~2.0 1.60~1.95
玄武岩纤维 3 000~4 840 79~93 3.1 2.70
陶瓷纤维 800~3 600 360~480 0.8 2.40~2.60
钢纤维 500~2 000 200 3~4 7.84

图1

不同尺度的杂化纤维增强混凝土在拉伸下破坏形式"

图2

增强混凝土纤维的类型及形状特征"

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