Title: Evaluation of the impact of temperature distribution on the degradation process of bituminous pavements: thermal non-destructive approach

Authors: Bannour Abdelilah; El Omari Mohamed; Lakhal El Khadir

Addresses: Department of Science and Industrial and Civil Technologies, Abdelmalek Essaadi University, National School of Applied Sciences, BP: 2222 M'hannech, Tetouan, Morocco ' Laboratory of Environment and Transfer Processes, Faculty of Science Semlalia, Department of Physics, Cadi Ayyad University, B.P 2390, 40000 Marrakech, Morocco ' Laboratory of Environment and Transfer Processes, Faculty of Science Semlalia, Department of Physics, Cadi Ayyad University, B.P 2390, 40000 Marrakech, Morocco

Abstract: The originality of this study resides in taking into account the effect of the heat flux, the surface layer thickness and the rate of voids in the interface on temperature distribution within surface course. In this work, a numerical simulation was performed, which aim at studying the amplitude of the temperature distribution differs under the effect of the variation of the heat flux, the variation of the thickness of the surface layer and the rate of voids in the interface. The numerical simulation carried out to determine the effect of each of these factors, showed that the distribution of the temperature remains very sensitive to the increase of the flux but the influence of the other two factors less significant. The contribution of this work proposes a means of helping pavement engineers to design structures with excellent performance that are much more resistant to temperature fluctuations throughout the pavement life span.

Keywords: thermal non-destructive testing; temperature; road deterioration; road deterioration; numerical simulation; finite elements; flexible pavement.

DOI: 10.1504/IJMMP.2018.096137

International Journal of Microstructure and Materials Properties, 2018 Vol.13 No.3/4, pp.147 - 160

Received: 23 Sep 2017
Accepted: 15 May 2018
Published online: 13 Nov 2018 *

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