2019 CSCE Annual Conference - Laval (Greater Montreal)

2019 CSCE Annual Conference - Laval (Greater Montreal) Conference


Title
Crack Analysis of Electrically Conductive Heated Pavement Systems through Finite Element Modeling

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Author(s)
Mr. Sajed Sadati, Iowa State University
Mr. Adel Rezaei-Tarahomi, Iowa State University
Dr. Kristen Cetin, Iowa State University (Presenter)
Dr. Halil Ceylan, Iowa State University
Dr. Sunghwan Kim, Iowa State University
Abstract

The construction of electrically conductive heated pavement systems includes embedding electrodes in the conductive layer of the concrete. These electrodes are necessary for developing electric current in the conductive layer of the pavement system and ultimately for heat generation. However, the impact of the location and properties of the electrodes should be studied to evaluate the structural performance of the pavement under the expected loading, as well as methods to help to prevent the occurrence of cracks. In this study, two finite element models of electrically conductive heated pavement system are developed, including a model of the pavement system i) with electrodes, and ii) without electrodes, each simulating cracking in the same location. The structural response of these two systems under specific sets of realistic loading conditions which simulate traffic loads are then compared. The difference between the results of the two models shows the impact of the electrodes on the structural performance of the system. The outcomes of this study provides guidance regarding the construction process of the electrically conductive heated pavement systems, and recommendations to help minimize the potential for cracking due to the existence of electrodes.