@inproceedings{262010cc75f34f218ca159a6b84d6bf4,
title = "Evaluating the Effect of Solar Radiations on the Performance of Asphalt Concrete Pavements",
abstract = "In recent years, severe weather events have impacted the performance of transportation infrastructures. The increase in temperature and heatwaves, lead to the early deterioration of pavement structures. The purpose of this paper is to study the effect of solar radiations on the behavior of flexible pavements. A project was implemented in Flagstaff, Arizona, to evaluate the impact of solar radiations on asphalt concrete pavements. The analysis was performed using similar road sections with shaded and unshaded areas. A three-dimensional model of the study area was built using MicroStation, to generate solar analysis study using specified time periods. To validate the numerical analysis, field visits were conducted to measure pavement surface temperatures, and evaluate distress types along pavement surfaces for areas with solar exposure and areas without sun exposure. Bending Beam Rheometer (BBR) tests were performed to determine the stiffness of the asphalt mixtures. ANSYS, a finite element analysis software, was used to analyze the critical tensile and compressive strains exerted on the pavement. According to the results, pavement sections exposed to solar radiations, experience a significantly higher level of critical tensile and compressive strains compared to shaded pavement areas. Based on test findings and analysis results, the paper concluded that solar radiations lead to the early deterioration of asphalt pavements by increasing fatigue distress and rutting.",
keywords = "Asphalt, Critical strains, Fatigue, Pavement, Rutting, Solar radiation",
author = "Amal Abdelaziz and Ho, \{Chun Hsing\}",
note = "Publisher Copyright: {\textcopyright} 2019, Springer International Publishing AG, part of Springer Nature.; 5th GeoChina International Conference on Civil Infrastructures Confronting Severe Weathers and Climate Changes: From Failure to Sustainability, 2018 ; Conference date: 23-07-2018 Through 25-07-2018",
year = "2019",
doi = "10.1007/978-3-319-95789-0\_9",
language = "English (US)",
isbn = "9783319957883",
series = "Sustainable Civil Infrastructures",
publisher = "Springer Science and Business Media B.V.",
pages = "90--103",
editor = "Kun Zhang and Rongqiao Xu and Shih-Huang Chen",
booktitle = "Testing and Characterization of Asphalt Materials and Pavement Structures - Proceedings of the 5th GeoChina International Conference 2018 – Civil Infrastructures Confronting Severe Weathers and Climate Changes",
}