Experimental Investigation of the Mechanical Properties in Polyacrylonitrile Fiber-Reinforced Pervious Concrete

DOI

10.2991/978-94-6463-932-2_17How to use a DOI?

Keywords

Pervious Concrete; Polyacrylonitrile Fiber; Polypropylene Fiber; Flexural Strength; Splitting Tensile Strength; Orthogonal Design

Abstract

This study investigates the impact of polyacrylonitrile fibers on the mechanical properties of pervious concrete using the orthogonal test method to examine the effects of fiber length and content on flexural and splitting tensile strength. The experimental results indicate that fiber content has a slightly greater influence than fiber length. As fiber content increases, both flexural strength and splitting tensile strength generally improve, with enhancements exceeding 10% when the content is at least 1.5 kg/m³. Under conditions of 20% designed porosity and a water-binder ratio of 0.25, pervious concrete reinforced with 6 mm polyacrylonitrile fibers at 2.0 kg/m³ achieves a maximum flexural strength of 6.5 MPa—representing a 44% increase compared to concrete without fibers. To ensure both flexural and splitting tensile strength enhancements, the fiber content should be maintained at a minimum of 1.5 kg/m³, with 6 mm fibers providing superior reinforcement compared to 12 mm fibers.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Luanzhen Long
AU  - Simin Zou
AU  - Puyuan Shen
PY  - 2025
DA  - 2025/12/22
TI  - Experimental Investigation of the Mechanical Properties in Polyacrylonitrile Fiber-Reinforced Pervious Concrete
BT  - Proceedings of the 2025 2nd International Conference on Civil Engineering Structures and Concrete Materials (CESCM 2025)
PB  - Atlantis Press
SP  - 152
EP  - 160
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-932-2_17
DO  - 10.2991/978-94-6463-932-2_17
ID  - Long2025
ER  -