, Professor, Civil, Environmental and Geo-Engineering
This research explored the construction and design of composite pavements as a viable design strategy using an asphalt concrete (AC) wearing course as the insulating material and a Portland cement concrete (PCC) structural layer as the load-carrying material. These pavements are intended for areas with heavy trucks and problem soils to increase the service life and minimize maintenance. The project focused specifically on thermally insulated concrete pavements (TICPs) (that is, thin composite AC overlays of new or structurally sound existing PCC pavements) and developed design and construction guidelines for TICPs. Specific research objectives included
determining the behavior of the TICP system layers, understanding life-cycle costs and the feasibility of TICPs, and incorporating the results into design and construction guidelines. Both construction and design guidelines were considered in relation to the construction and performance of TICP test sections at the Minnesota Road Research project (MnROAD).