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Refining the maintenance techniques for Interlocking Concrete Paver GIs
Citation:
Ehsaei, A., S. Abdollahian, Mike Borst, R. Brown, J. Gray, AND L. Kurtz. Refining the maintenance techniques for Interlocking Concrete Paver GIs. Presented at 2013 INTERNATIONAL LOW IMPACT DEVELOPMENT SYMPOSIUM, Saint Paul, MN, August 18 - 21, 2013.
Impact/Purpose:
Surface clogging adversely affects the performance of Interlocking Concrete Pavements (ICP) by reducing their ability to infiltrate stormwater runoff. The clogging rate is a function of pavement type, traffic loading, surrounding physical environment and maintenance treatments. Determining the correct methods for remedial maintenances is crucial to recovering and maintaining efficient ICP performance
Description:
Surface clogging adversely affects the performance of Interlocking Concrete Pavements (ICP) by reducing their ability to infiltrate stormwater runoff. The clogging rate is a function of pavement type, traffic loading, surrounding physical environment and maintenance treatments. Determining the correct methods for remedial maintenances is crucial to recovering and maintaining efficient ICP performance. This study examines empirical evidence of two maintenance techniques; one conducted using a regenerative vacuum sweeping truck and the other with air pressure blasting the pavers’ gaps, employed on two ICP green infrastructures (GI) controls in an urban neighborhood in Louisville, KY. The progress of the surface clogging is quantified through embedded instrumentation and surface infiltration tests. All material removed from the controls during each maintenance was recovered and analyzed for particle size distribution, and organic content. Through the analysis of recovered sediment samples, and comparison of pre- and post-maintenance infiltration rates against the rainfall data, the effectiveness of each technique and their frequency are determined. Characteristics of the surrounding physical environment and the results gained by the study are used to refine the maintenance frequency. At the end using air pressure blasting the pavers’ gaps is proved to be more effective in recovery of the surface infiltration rates.
URLs/Downloads:
http://www.cce.umn.edu/2013-International-Low-Impact-Development-Symposium/index.html