Using Drainage Slots in Permeable Paving Blocks to Delay the Effects of Clogging: Proof of Concept Study

Terry Lucke

doi:10.3390/w6092660

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Using Drainage Slots in Permeable Paving Blocks to Delay the Effects of Clogging: Proof of Concept Study

Journal article

Open access

Peer reviewed

Using Drainage Slots in Permeable Paving Blocks to Delay the Effects of Clogging: Proof of Concept Study

Terry Lucke

Water, Vol.6(9), pp.2660-2670

2014

DOI: https://doi.org/10.3390/w6092660

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Abstract

permeable pavements

clogging

drainage slots

bedding aggregate

geofabric

Permeable interlocking concrete pavements (PICP) are specifically designed to remove sediment and other pollutants from stormwater runoff. Over time, this can lead to clogging of the PICP system. Previous research has shown that much of the clogging occurs on the bedding aggregate directly below the paving joints, while the remainder of the aggregate is unaffected. This paper describes a proof of concept study to delay the effects of clogging by making more efficient use of the bedding aggregate used in PICP systems. Lateral drainage slots were cut into the underside of PICP blocks to allow sediment-laden stormwater to access, and be filtered by, a greater surface area of bedding aggregate. Eight different slot designs were trialed in the study to determine which of the slot designs made the most efficient use of the bedding aggregate to filter the sediment from the stormwater. The study results demonstrated that the eight drainage slot designs deposited between 25% and 366% more sediment (by weight) beneath the pavers than the control pavement. The results of the study suggest that PICP systems with drainage slots cast into their bases would take much longer to clog than unmodified pavers, thereby proving the concept of this study.

Details

Title: Using Drainage Slots in Permeable Paving Blocks to Delay the Effects of Clogging: Proof of Concept Study
Authors: Terry Lucke (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
Publication details: Water, Vol.6(9), pp.2660-2670
Publisher: MDPI AG
Date published: 2014
DOI: 10.3390/w6092660
ISSN: 2073-4441
Copyright note: Copyright © 2014 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
Organisation Unit: School of Science and Engineering - Legacy; University of the Sunshine Coast, Queensland
Language: English
Record Identifier: 99449013202621
Output Type: Journal article