Research progress on preparation methods and fiber orientation of directional fiber reinforced concrete

doi:10.19936/j.cnki.2096-8000.20221228.017

Abstract

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

CLC Number:

TB332

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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