Raquel Burlotos - A study on porous asphalt at the Morris Arboretum

The Morris Arboretum has one of the oldest porous asphalt sites in the country dating back to 1982. Today the asphalt is being replaced because it no longer infiltrates, and is wearing down. Because of this, the Villanova Urban Stormwater Partnership decided that it would be advantageous to perform a forensic study on the asphalt examining its current condition before replacement. The study focused on observing why the asphalt no longer infiltrates, quantifying the amount contaminants trapped in the asphalt, determining the asphalt's porosity and determining the asphalt's current infiltration rates. Results revealed high metal concentrations from the asphalt, low infiltration rates, and failure due to age and clogging.