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首页> 外文期刊>Magazine of Concrete Research >Grafting of continuous polypropylene fibres by methacrylic acid monomers to improve their bonding to concrete matrix
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Grafting of continuous polypropylene fibres by methacrylic acid monomers to improve their bonding to concrete matrix

机译：甲基丙烯酸单体接枝连续聚丙烯纤维以改善其与混凝土基体的粘合力

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摘要

In this paper, methacrylic acid monomers grafted to continuous polypropylene fibres to make them hydrophile, while grafting experiments are designed based on Taguchi method in which temperature, monomer concentration, cross-linker concentration and time of reaction are selected as variable factors at four levels and several polypropylene fibres with various grafting degrees are obtained. Next, pull-out behaviour of modified fibres embedded to concrete is investigated and compared to raw fibres. In addition, influence of grafting on pull-out behaviour of fibres is addressed. Pull-out tests and scanning electron microscopy images verified the bonding improvement of the proposed fibres to concrete appropriately. Finally, optimum grafting degree to achieve the best bonding between the fibres and concrete with highest tolerated tensile load is determined.
机译：本文将甲基丙烯酸单体接枝到连续的聚丙烯纤维上以使其具有亲水性，同时基于Taguchi方法设计了接枝实验，其中温度，单体浓度，交联剂浓度和反应时间是四个水平的可变因素，得到几种具有不同接枝度的聚丙烯纤维。接下来，研究了嵌入到混凝土中的改性纤维的拉拔性能，并将其与原始纤维进行了比较。另外，解决了接枝对纤维拉出行为的影响。拔出测试和扫描电子显微镜图像验证了所提出的纤维与混凝土的粘结性得到了适当改善。最后，确定最佳的接枝度，以使纤维与混凝土之间具有最佳的拉伸强度，从而达到最佳的粘结效果。

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  • 来源
    《Magazine of Concrete Research》 |2013年第14期|802-808|共7页
  • 作者

    Majid Mazhar; Majid Abdouss; Zahra Shariatinia; Mojdeh Zargaran;

  • 作者单位

    Department of Chemistry, Amirkabir University of Technology (Polytechnic), Tehran, Iran;

    Department of Chemistry,Amirkabir University of Technology (Polytechnic), Tehran, Iran;

    Assistant Professor, Department of Chemistry,Amirkabir University of Technology (Polytechnic), Tehran, Iran;

    Building and Housing Research Center (BHRC), Tehran, Iran;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
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