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

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 e...

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Bibliographic Details
Published in:Journal of cold regions engineering 2022-12, Vol.36 (4)
Main Authors: Félix Adam, Quentin, Levenberg, Eyal, Ingeman-Nielsen, Thomas
Format: Article
Language:English
Subjects:
Asphalt
Asphalt pavements
Frost
Heat
Heating
High temperature effects
Latent heat
Mathematical models
Meteorological data
Multilayers
Penetration depth
Technical Papers
Thermal analysis
Thermodynamics
Weather
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Summary: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.
ISSN:0887-381X
1943-5495
DOI:10.1061/(ASCE)CR.1943-5495.0000289