Evaluation of pervious concrete pavement permeability renewal maintenance methods at field sites in Canada

Pervious concrete pavement offers sustainable solutions to urban growth challenges by providing a stormwater management alternative and benefits to the ecosystem and community. Maintenance may not always be required but is likely needed in general to maintain adequate performance of pervious concrete. A Canada wide study has been initiated to evaluate the performance of pervious concrete pavement in the Canadian freeze thaw climate. This paper presents the results to date related to the work that has been performed in evaluating maintenance methods at five field sites across Canada. In general, the results indicate that it is essential to agitate the debris in the voids to remove and clear as much material as possible. The maintenance methods that have been evaluated are the following: sweeping using a broom or street sweeper; rinsing the surface with a garden hose or large hose; vacuuming; and power washing.