The Influence of different mixture design variables on thermal fatigue cracking of asphalt concrete pavements /

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2014
Arabzadeh, Ali
In this study, in order to investigate the thermal fatigue resistance of naturally-aged asphalt concrete specimens, an experimental setup is developed. Mixture design variables, selected according the superpave method of design, include asphalt content, asphalt type, aggregate type, gradation and modification. In the course of this study, using the developed setup, thermal coefficients and thermal fatigue life of the asphalt concrete specimens are measured. Then, using the analysis of variance tests the significant mixture design variables affecting the two types of tests are identified. According to the statistical analyses, aggregate type, gradation, asphalt type and asphalt content significantly affect the thermal coefficient of asphalt concrete. The thermal fatigue resistance is significantly affected by aggregate type, asphalt content and the asphalt type. The results of this study provide a solution to minimize the thermal fatigue cracking in asphalt concrete pavements.

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Citation Formats
A. Arabzadeh, “The Influence of different mixture design variables on thermal fatigue cracking of asphalt concrete pavements /,” M.S. - Master of Science, Middle East Technical University, 2014.