Overview of Environmental Considerations in AASHTO Pavement Design Guides
Publication: Journal of Cold Regions Engineering
Volume 31, Issue 3
Abstract
This paper presents an overview of the effects of environmental factors, namely moisture and temperature, on the material properties of flexible pavement road structure considered in the design guides of AASHTO. It considers the historical development of AASHTO design guides with new design guides. The study showed the shift in emphasis from total reliance on an empirical method to a combination of mechanistic and empirical methods in the new design guide. Further, moisture and temperature were indirectly considered in the current guide, whereas these parameters are accounted for in the new design guide through the resilient modulus and the complex modulus. The sensitivity analyses of environmental consideration using the new design guide software are presented in this paper.
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Information & Authors
Information
Published In
Journal of Cold Regions Engineering
Volume 31 • Issue 3 • September 2017
Copyright
©2017 American Society of Civil Engineers.
History
Received: Mar 9, 2015
Accepted: Apr 15, 2016
Published ahead of print: Mar 2, 2017
Published online: Mar 3, 2017
Discussion open until: Aug 3, 2017
Published in print: Sep 1, 2017
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