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Water 2015, 7(6), 2542-2554; doi:10.3390/w7062542

A Simple Field Test to Evaluate the Maintenance Requirements of Permeable Interlocking Concrete Pavements

1,†,* , 1,†
,
1,†
and
2,†
1
Stormwater Research Group, University of the Sunshine Coast, Sippy Downs, Queensland 4558, Australia
2
BWB Norderstedt, Kattendorf 24568, Germany
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Academic Editor: Y. Jun Xu
Received: 28 February 2015 / Revised: 4 May 2015 / Accepted: 20 May 2015 / Published: 26 May 2015
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Abstract

Adequate infiltration through Permeable Interlocking Concrete Pavements (PICPs) is critical to their hydraulic and stormwater treatment performance. Infiltration is affected by clogging caused by the trapping of fines in the PICP surface, which, over time, reduces treatment performance. Clogging can be reduced by periodic maintenance such as vacuum sweeping and/or pressure washing. Maintenance requirements can be indicated by measuring reduced infiltration rates. This paper compared infiltration results using the standard test (C1781M-14a) with the results of a new stormwater infiltration field test (SWIFT) developed in Australia to evaluate the maintenance requirements of PICPs. A strong correlation (Pearson’s r = −0.714) was found between results using the two methods. This study found that the SWIFT was a reliable method for estimating the degree of clogging of PICPs while successfully overcoming some of the problems with the more technical existing test methodology such as horizontal water leakage (use of sealant), unrealistic pressure heads, speed of test, and portability. The SWIFT test is a simple, fast and inexpensive way for asset managers and local government employees to quickly assess the maintenance requirements of PICP installations in the field. View Full-Text
Keywords: permeable interlocking concrete pavements (PICP); stormwater pollution; clogging; infiltration testing permeable interlocking concrete pavements (PICP); stormwater pollution; clogging; infiltration testing
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Lucke, T.; White, R.; Nichols, P.; Borgwardt, S. A Simple Field Test to Evaluate the Maintenance Requirements of Permeable Interlocking Concrete Pavements. Water 2015, 7, 2542-2554.

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