Evaluation of Mechanical Properties and Structural Integrity for Pervious Concrete Pavement Systems
Publication: Journal of Materials in Civil Engineering
Volume 26, Issue 6
Abstract
Pervious concrete pavements (PCP) are increasingly recognized and used as a best management practice to control stormwater runoff and for low-volume traffic. However, there are limited studies on the structural integrity of the PCP section on performance under vehicular loads. This study investigated the mechanical properties of field samples and the structural integrity of PCP when subjected to traffic loads using the falling weight deflectometer (FWD). The compressive strength for cored samples from the field installation was about 11.5 MPa with an average unit weight of . The deflection of the PCP sections at the load application point was about 1.7 to 4 times of the impervious concrete section, dependent on the subbase characterization. The composition of the PCP subbase materials and the compaction effort of the layers significantly affected the deflection. Back-calculation analysis showed that the loosely compacted subbase layers had lower elastic moduli and exhibited higher deflection responses, which compromised the structural integrity of the PCP systems to traffic loadings.
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Acknowledgments
The authors are sincerely grateful to the Florida Department of Transportation (FDOT) for funding the research reported in this paper. The findings presented in this paper are purely scientific opinions of the authors. They are not the official standpoints of the Florida Department of Transportation (FDOT), or the University of Central Florida. It should be noted that the use of manufacturers’ products in this report does not constitute an endorsement of said products by either the State or the authors. In addition, the authors would like to thank the students and staff of the Stormwater Management Academy for their assistance with this work.
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Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 26 • Issue 6 • June 2014
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Feb 12, 2013
Accepted: Aug 6, 2013
Published online: Aug 8, 2013
Published in print: Jun 1, 2014
Discussion open until: Aug 17, 2014
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