Core Chinese Journal
Source Journal of CSCD
Source Journal for Chinese Scientific and Technical Papers
Core Journal of RCCSE
Included in JST China
Included in the Hierarchical Directory of High-quality Technical Journals in Architecture Science Field
Volume 53 Issue 2
Feb.  2023
Turn off MathJax
Article Contents
LYU Haoping, LI Yanjie, HAO Yuanhao, ZHU Chongji, LIU Shixi. Research on Mix Processes and Bending Properties of Modified Polypropylene Fiber Reinforced Cement-Based Materials[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(2): 211-217,71. doi: 10.13204/j.gyjzG22042524
Citation: LYU Haoping, LI Yanjie, HAO Yuanhao, ZHU Chongji, LIU Shixi. Research on Mix Processes and Bending Properties of Modified Polypropylene Fiber Reinforced Cement-Based Materials[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(2): 211-217,71. doi: 10.13204/j.gyjzG22042524

Research on Mix Processes and Bending Properties of Modified Polypropylene Fiber Reinforced Cement-Based Materials

doi: 10.13204/j.gyjzG22042524
  • Received Date: 2022-04-25
    Available Online: 2023-05-25
  • Publish Date: 2023-02-20
  • The modified polypropylene fiber reinforced cement-based materials prepared by two kinds of mixing processes (pre-fiber mixing method and post-fiber mixing method) were tested to study the fiber dispersion and working performance of fresh mortar under different mixing times and mixing rates, and the compression test and flexural test of its castables at different ages were carried out. Based on the above test results, a reliable mixing process was established, and the flat plate specimens were poured. The effects of the length and content of modified polypropylene fibers on the bending properties were studied by four-point-bending test. The results showed that the mixing processes of post-fiber mixing method and slow mixing method were reliable.When the fiber length was 12 mm, the strength was the largest, and when the fiber length was 20 mm, the ductility, toughness and residual strength were the best. When the fiber length was the same, the bending properties would increase with the increase of fiber content. This study can provide an experimental basis for the preparing fiber-reinforced cement-based materials by modified polypropylene fibers.
  • loading
  • [1]
    陈文永, 陈小兵, 丁一. ECC高性能纤维增强水泥基材料及其应用[J]. 工业建筑, 2010,40(增刊1):768-772.
    [2]
    郭瑞, 任宇, 顾天宇. 纤维增强复材网格-工程水泥基复合材料加固钢筋混凝土梁的抗剪性能试验研究[J]. 工业建筑, 2019,49(9):145-151

    ,7.
    [3]
    丁一, 陈小兵, 李荣. ECC材料的研究进展与应用[J]. 建筑结构, 2007,37(增刊1):378-382.
    [4]
    陈文永. 纤维增强水泥基材料的研究现状与发展趋势[J]. 建筑技术开发, 2019,46(10):147-148.
    [5]
    曹明莉, 许玲, 张聪. 高延性纤维增强水泥基复合材料的微观力学设计、性能及发展趋势[J]. 硅酸盐学报, 2015,43(5):632-642.
    [6]
    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.
    [7]
    王来贵, 陈强, 潘纪伟, 等. 聚丙烯纤维增强水泥砂浆力学性能试验研究[J]. 硅酸盐通报, 2017,36(3):870-877.
    [8]
    ZHU D, TANG A, WAN C, et al. Investigation on the flexural toughness evaluation method and surface cracks fractal characteristics of polypropylene fiber reinforced cement-based composites[J/OL]. Journal of Building Engineering, 2021(11).(2021-12-01)[2021-12-02] https://doi.Drg/10.1016/j.jobe.2021.103445.
    [9]
    JIN Q, LI V C. Development of lightweight engineered cementitious composite for durability enhancement of tall concrete wind towers[J/OL]. Cement and Concrete Composites, 2018,96.https://doi.org/10.1016/j.cemconcomp.2018.11.016.
    [10]
    张丽哲, 孙启龙, 季涛, 等. 纤维改性对聚丙烯粗纤维增强水泥早期抗裂性能的影响[J]. 产业用纺织品, 2016,34(11):14-17.
    [11]
    靳贺松, 李福海, 何肖云峰, 等. 聚丙烯纤维水泥基复合材料的抗冻性能研究[J]. 材料导报, 2020,34(8):8071-8076

    ,8082.
    [12]
    ZHONG L, LI V C. Crack bridging in fiber reinforced cementitious composites with slip-hardening interfaces[J]. Journal of the Mechanics & Physics of Solids, 1997,45(5):763-787.
    [13]
    KANDA T, LI V C. Effect of fiber strength and fiber-matrix interface on crack bridging in cement composites[J]. Journal of Engineering Mechanics, 1999,125(3):290-299.
    [14]
    WU C, LI V C. CFRP-ECC hybrid for strengthening of the concrete structures[J]. Composite Structures, 2017,178(10):372-382.
    [15]
    李伟. 超高韧性水泥基复合材料的搅拌方法研究[D]. 大连:大连理工大学, 2009.
    [16]
    刘从亮,毕远志,华渊.高掺量粉煤灰PVA-ECC的力学性能研究及粉煤灰作用机理分析[J].硅酸盐通报,2017,36(11):3739-3744.
    [17]
    DGA B, ML A, LIN Y B, et al. Flexural properties of high ductility cementitious composites with totally recycled fine aggregate[J]. Journal of Materials Research and Technology, 2021,14:1319-1332.
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views (36) PDF downloads(0) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return