Assessment of clogging of permeable pavements in Budapest using in-situ infiltration measurements
Abstract
Permeable pavements are increasingly being used as pavements for urban surfaces both in Hungary and around the world, as the replacement of impermeable surfaces contributes to mitigating the negative impacts of climate change. As a tool of blue-green infrastructure systems that support stormwater management, permeable pavements can help to retain and infiltrate urban storms, reducing runoff and improving the local microclimate.
One of the most important properties of permeable pavements is their surface permeability, which may decrease over time due to the impact of particulate (pollutant) matter they are exposed to. In this research, in-situ infiltration measurements were carried out at 18 sites in Budapest in 2020 and 2021 on resin bound gravel and crumb rubber pavements. A strong exponential relationship was found between the age of the pavements and their permeability, with the permeability of the pavements roughly halving per year. Since the type of measurement method can also affect the results of field measurements, we compared two types of infiltration tests, single and double ring. No clear difference was found between the permeability measured with the two methods, but for repeated tests with the same methods, several phenomena and effects affecting the reliability of the measurement were investigated, such as clogging, leaching, lateral leakage, spatial heterogeneity.
Copyright (c) 2023 Tímea Sztrausz, Tamás Ács, Bence Decsi, LAURA VARGA

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