Protecting Asphalt Pavements against Frost Action with an Electrical Heating System: Numerical Investigation

Quentin Félix Adam*, Eyal Levenberg*, Thomas Ingeman-Nielsen*

*Corresponding author for this work

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Abstract

This paper is concerned with electrically heated asphalt pavements; it numerically explores the possibility of such technology to actively suppress frost penetration under seasonal cold-weather conditions. A thermal model is outlined for the investigation based on the one-dimensional heat equation including latent heat effects. This model is applied to a multilayer medium containing a buried heat source representing the heating system. Utilizing cold-climate weather data from northern Finland, calculations were performed to track the evolution of the frost front depth in an idealized pavement structure with no heating. Then the model calculations were repeated with the heating activated. A parametric study was performed with different heat production intensities and several embedment depths for the heating system. It is numerically demonstrated that embedded electrical heating can suppress frost penetration depth and duration in asphalt pavements, rendering the explored application practically feasible.
Original languageEnglish
Article number04022013
JournalJournal of Cold Regions Engineering
Volume36
Issue number4
ISSN0887-381X
DOIs
Publication statusPublished - 2022

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