定向纤维混凝土的制备方法与纤维取向研究进展

doi:10.19936/j.cnki.2096-8000.20221228.017

摘要/Abstract

摘要： 将短切纤维材料掺入混凝土中可以解决其抗裂性能差、延性低等问题。但由于短切纤维在混凝土中一般为随机分布,纤维取向与受力方向不一致,所以纤维对受力性能的贡献率有限。于是,学者们开展了纤维取向对纤维增强混凝土基本力学性能影响的研究,为提升短切纤维贡献率提供理论和实验依据,开发了定向纤维混凝土的多种制备方法并研究定向后其纤维取向。本文主要从制备原理、制作设备、纤维种类等几个方面对定向纤维混凝土制备方法及纤维取向的研究现状进行了详细整理、总结归纳,并进一步给出了定向纤维混凝土的应用前景。

关键词: 纤维增强混凝土, 定向纤维, 制备方法, 纤维取向

Abstract: Adding chopped fiber material into concrete can solve the problems of poor crack resistance and low ductility. However, due to the random distribution of chopped fibers in concrete, the fiber orientation is inconsistent with the stress direction, so the contribution rate of fibers to the mechanical properties is limited. Therefore, scholars have carried out the research on the influence of fiber orientation on the basic mechanical properties of fiber reinforced concrete, provided theoretical and experimental basis for improving the contribution rate of chopped fibers, and developed various preparation methods of directed fiber and studied its fiber orientation. In this paper, the preparation methods of directional fiber reinforced concrete and the research status of fiber orientation are sorted out and summarized in detail from the aspects of preparation principle, production equipment and fiber types. Then the application prospect of directional fiber reinforced concrete is further given.

Key words: fiber reinforced concrete, directed fiber, preparation method, fiber orientation

中图分类号:

TB332

路鸣宇, 廖维张. 定向纤维混凝土的制备方法与纤维取向研究进展[J]. 复合材料科学与工程, 2022, 0(12): 124-132.

LU Ming-yu, LIAO Wei-zhang. Research progress on preparation methods and fiber orientation of directional fiber reinforced concrete[J]. COMPOSITES SCIENCE AND ENGINEERING, 2022, 0(12): 124-132.

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