Effect of Rejuvenator Sealer Materials on the Properties of Aged Asphalt Binder
Publication: Journal of Materials in Civil Engineering
Volume 25, Issue 7
Abstract
The maintenance of asphalt pavement has become recognized as a critical issue in China. The objective of this study is to investigate the influence of using rejuvenator sealer materials on aged asphalt by means of laboratory analysis. First, asphalt binder first aged by rolling thin-film oven test and ultraviolet light. This aged asphalt was treated by two kinds of rejuvenator sealer materials. The performances of both aged binder and rejuvenator treated binder were evaluated by means of viscosity, temperature sweep, creep recovery, fatigue, and component analysis tests. The results indicated that both rejuvenator sealer materials can significantly decrease the viscosity and complex modulus of aged asphalt. Moreover, applying rejuvenator sealer materials can balance the asphaltene–maltene ratio of aged asphalt to some degree. Aged asphalt can be efficiently softened with the rejuvenator materials, which proves that rejuvenator sealer materials can be used for maintenance to improve the performance of existing pavements.
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Acknowledgments
This paper is supported by the Project of International Science & Technology Cooperation Program of China (2010DFA82490) and Hubei Provincial Natural Science Foundation of China (2009CDA053).
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Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 25 • Issue 7 • July 2013
Pages: 829 - 835
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Mar 16, 2012
Accepted: Sep 27, 2012
Published online: Oct 1, 2012
Published in print: Jul 1, 2013
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