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<p>Permeable paving provides excellent water permeability and helps alleviate urban flooding. However, conventional systems suffer from low mechanical strength and are prone to clogging, which limits their service life. In this study, a honeycomb-structured permeable pavement was developed using self-compacting concrete. An orthogonal experimental design was adopted to evaluate the effects of water–cement ratio, fly ash content, superplasticizer dosage, and polyvinyl alcohol fibers on the mechanical properties of self-compacting concrete. ANSYS Workbench was employed to simulate the mechanical behavior of the specimens. The simulation results showed deviations of less than 3% from the experimental data, confirming the reliability of the numerical model. The optimal structural parameters were then determined. When the cell spacing and diameter were 40&#xa0;mm and 4&#xa0;mm, respectively, the compressive strength reached 53.37&#xa0;MPa, while the splitting tensile strength reached 8.23&#xa0;MPa. When the wedge slope was 4°, the corresponding strengths were 47.63&#xa0;MPa and 5.44&#xa0;MPa, indicating optimal overall performance. Under different slope conditions, the maximum permeability coefficient reached 28.913&#xa0;mm/s. Clogging tests showed that particles of 0.16–0.315&#xa0;mm accounted for only 3.9% of the total clogging mass. In contrast, conventional permeable concrete exhibited clogging particles mainly in the range of 0.315–1.25&#xa0;mm, with a clogging mass of 81.74%. The proposed structure provides an effective approach to improve mechanical performance and clogging resistance.</p>

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Design of Honeycomb Permeable Surface Layer and Study on Its Mechanical and Anti-Clogging Performance

  • 期刊论文

  • 发表日期：

    2026年8月4日

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  • Qidan Xiao,
  • He Yu,
  • Kun Niu,
  • Hao Chang

摘要

Permeable paving provides excellent water permeability and helps alleviate urban flooding. However, conventional systems suffer from low mechanical strength and are prone to clogging, which limits their service life. In this study, a honeycomb-structured permeable pavement was developed using self-compacting concrete. An orthogonal experimental design was adopted to evaluate the effects of water–cement ratio, fly ash content, superplasticizer dosage, and polyvinyl alcohol fibers on the mechanical properties of self-compacting concrete. ANSYS Workbench was employed to simulate the mechanical behavior of the specimens. The simulation results showed deviations of less than 3% from the experimental data, confirming the reliability of the numerical model. The optimal structural parameters were then determined. When the cell spacing and diameter were 40 mm and 4 mm, respectively, the compressive strength reached 53.37 MPa, while the splitting tensile strength reached 8.23 MPa. When the wedge slope was 4°, the corresponding strengths were 47.63 MPa and 5.44 MPa, indicating optimal overall performance. Under different slope conditions, the maximum permeability coefficient reached 28.913 mm/s. Clogging tests showed that particles of 0.16–0.315 mm accounted for only 3.9% of the total clogging mass. In contrast, conventional permeable concrete exhibited clogging particles mainly in the range of 0.315–1.25 mm, with a clogging mass of 81.74%. The proposed structure provides an effective approach to improve mechanical performance and clogging resistance.