Each year, the American Association of State Highway and Transportation Officials (AASHTO) honors the best transportation research projects from each of its four regions with a prestigious High Value Research award.
As members of Region 3, Iowa and eight other states – Illinois, Indiana, Kansas, Michigan, Minnesota, Missouri, Ohio, and Wisconsin – will face off for 2022 awards. The projects Iowa has submitted for consideration this year are:
Self-Heating Electrically Conductive Concrete Demonstration Project (E-Con). This project represents the largest-to-date field study of electrically conductive heated concrete, using electrodes embedded in the concrete to melt snow and ice on the surface. The results could one day be used to target ice-prone areas like bridge decks without repeated salting.
Bio-Based Polymers for Use in Asphalt - Phase II. In phase I of this study, researchers developed renewable materials from vegetable and soybean oil that can replace the dangerous binding material traditionally used in asphalt paving mixtures. In phase II, researchers built a pilot facility capable of producing enough biopolymers to support field demonstration projects that showcase the materials’ performance and cost-effectiveness.
After reviewing all of the Region 3 submissions, AASHTO’s Research Advisory Committee will choose the winning projects to be recognized at the committee’s summer meeting in July. Winners will also participate in a poster session dedicated to high-value research projects at the annual meeting of the Transportation Research Board in Washington, DC in January 2023.
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