Designing Sustainable Porous Pavements for Northern Communities

This project focuses on the mechanical and hydraulic properties of porous concrete in association with the Randolph pervious concrete Park and Ride. The first specific objective of this research is to evaluate in the laboratory the mechanical and hydraulic behavior of porous concrete mixes using local constituents. Next, to quantify effects of environmental conditions (e.g. freeze-thaw, wear and tear, winter sanding) on the mechanical and hydraulic behavior of porous concrete in the laboratory. Thirdly, to develop a mix design methodology for an optimal porous concrete pavement design suitable for northern climate. The last objective will be verifying findings from the above items using field data from the Randolph Park and Ride Project. Since January 2008, additional concrete mixes were prepared to investigate the effects of the water-cement ratio on both the permeability and compressive strength on laboratory samples. Mixes were also created to determine the effects of HRWR on these parameters. Additionally, cores from the field were tested for hydraulic conductivity. Preliminary freeze-thaw data investigated the effects of water-cement ratio on f-t durability. Field inspection of surface inundation of the porous concrete in Randolph began.