ABSTRACT
James and Verspagen, Thompson and James, and Shahin have observed low runoff volumes from porous concrete paver laboratory test blocks used in their respective research. The purpose of this research is to test the hypothesis that, for a particular permeable paver hereinafter called Uni-ecostone, infiltration capacities decrease with age and certain land uses, and that infiltration capacities may be improved by simply street sweeping and/or vacuuming the surface. Borgwardt conducted experiments at two Uni-ecostone installations, in much the same manner as this study, in an attempt to determine the infiltration capacities of the sites and investigate the effects of age on these capacities. An understanding of spatial variability and scale effects is imperative when investigating hydrologic processes. Following the second event, observations of decline in head over time were recorded. In an attempt to provide for spatial variabilities and their effect on infiltration capacities, test plots at two plot types were targeted.
