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The increasing extent of impervious urban surfaces has intensified challenges such as surface runoff and urban heat island phenomenon. Permeable concrete pavement (PCP) offers a sustainable solution by facilitating water infiltration. This study presents a large-scale evaluation of a laboratory-optimised mixture design (Opt. Mix), which was developed to make a balance between strength and permeability, in comparison with a commercial reference mixture design (Ref. Mix). A field trial was conducted at a car park in Melbourne, Australia, comprising two adjacent parking bays, one paved with Opt. Mix and the other with Ref. Mix. During paving bays with the mixture designs, samples were collected from fresh permeable concrete to conduct a comprehensive series of tests. Laboratory tests were performed on field samples to assess compressive strength, flexural strength, indirect tensile (IDT) strength, and permeability. In addition, in-situ double-ring infiltration rate (DRIR) test was carried out at planned time intervals to monitor the variation of infiltration rate over time. According to the experimental results, Opt. Mix exhibited up to 34% higher compressive strength, approximately double the IDT strength, and up to 65% higher flexural strength compared with Ref. Mix. In addition, Opt. Mix also demonstrated slightly higher permeability, 0.95 cm/s, than the Ref. Mix, 0.8 cm/s. The results of DRIR test indicated a gradual decline in infiltration rate over four months for both pavements, with a more pronounced reduction in Opt. Mix, likely due to larger aggregate size and higher clogging susceptibility. Overall, this study provides large-scale empirical evidence on the mechanical and hydrological performance of PCP constructed with Australian materials. The findings highlight the potential of optimising permeable concrete mixture design and show performance advantages over commercially used mixtures. Moreover, the infiltration monitoring results provide valuable insights into clogging of PCP under real field conditions and its influence on its service life.

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Large-Scale Performance Evaluation of Permeable Concrete Pavement

  • 会议论文

  • 发表日期：

    2026年

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  • Zohreh Fakhar Shakeri,
  • Rackel San Nicolas,
  • Mahdi Miri Disfani

摘要

The increasing extent of impervious urban surfaces has intensified challenges such as surface runoff and urban heat island phenomenon. Permeable concrete pavement (PCP) offers a sustainable solution by facilitating water infiltration. This study presents a large-scale evaluation of a laboratory-optimised mixture design (Opt. Mix), which was developed to make a balance between strength and permeability, in comparison with a commercial reference mixture design (Ref. Mix). A field trial was conducted at a car park in Melbourne, Australia, comprising two adjacent parking bays, one paved with Opt. Mix and the other with Ref. Mix. During paving bays with the mixture designs, samples were collected from fresh permeable concrete to conduct a comprehensive series of tests. Laboratory tests were performed on field samples to assess compressive strength, flexural strength, indirect tensile (IDT) strength, and permeability. In addition, in-situ double-ring infiltration rate (DRIR) test was carried out at planned time intervals to monitor the variation of infiltration rate over time. According to the experimental results, Opt. Mix exhibited up to 34% higher compressive strength, approximately double the IDT strength, and up to 65% higher flexural strength compared with Ref. Mix. In addition, Opt. Mix also demonstrated slightly higher permeability, 0.95 cm/s, than the Ref. Mix, 0.8 cm/s. The results of DRIR test indicated a gradual decline in infiltration rate over four months for both pavements, with a more pronounced reduction in Opt. Mix, likely due to larger aggregate size and higher clogging susceptibility. Overall, this study provides large-scale empirical evidence on the mechanical and hydrological performance of PCP constructed with Australian materials. The findings highlight the potential of optimising permeable concrete mixture design and show performance advantages over commercially used mixtures. Moreover, the infiltration monitoring results provide valuable insights into clogging of PCP under real field conditions and its influence on its service life.