How to Construct an Asphalt Binder Master Curve and Assess the Degree of Blending between RAP and Virgin Binders
Publication: Journal of Materials in Civil Engineering
Volume 25, Issue 12
Abstract
The master curve of an asphalt binder provides a relationship between the binder stiffness and reduced frequency over a range of temperatures and frequencies. Accordingly, the master curve makes it possible to predict viscoelastic properties over a wide frequency range and also to predict viscoelastic properties at any temperature. To construct a master curve, the stiffness of an asphalt binder at multiple temperatures and frequencies is measured. The data are then fitted into a viscoelastic model applied to asphalt binders. Recently, a methodology has been developed that utilizes the measured dynamic modulus of a hot-mix asphalt (HMA) mixture and the master curves for the as-recovered binders to determine the degree of blending between aged and virgin binders in asphalt mixtures that incorporates recycled materials. This study presents the methodology for constructing asphalt binder master curves in a step-by-step format. The study also describes in a step-by-step format the methodology for evaluating the degree of blending between aged and virgin binder. Furthermore, to clarify the method and elaborate on the analysis of experimental results, plant-produced mixtures containing different percentages of recycled asphalt pavement (RAP) were obtained and tested. The test results were used to develop the master curves and examine the degree of blending by the aid of the methodology explained in the paper.
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Acknowledgments
The authors would like to acknowledge Callanan Industries in New York, who produced and supplied the mixtures for this project, also, Pike Industries, Inc. who performed all of the binder extractions and recoveries for this study.
References
AASHTO. (2011). “Grading or verifying the performance grade of an asphalt binder.” R29, Washington, DC.
AASHTO. (2011). “Standard specification for performance-graded asphalt binder.” M320, Washington, DC.
AASHTO. (2011a). “Determining the rehological properties of asphalt binder using dynamic shear rheometer.” T315, Washington, DC.
AASHTO. (2011b). “Determining the flexural creep stiffness of asphalt binder using the bending beam rheometer.” 313, Washington, DC.
AASHTO. (2011c). “Developing dynamic modulus master curves for hot mix asphalt (HMA) using the asphalt mixture performance tester (AMPT).” PP61, Washington, DC.
AASHTO. (2011d). “Standard method of test for determining the dynamic modulus and flow number for hot mix asphalt (HMA) using the asphalt mixture performance tester (AMPT).” TP79, Washington, DC.
AASHTO. (2011e). “Standard method of test for quantitative extraction of asphalt binder from hot mix asphalt (HMA).” T164, Washington, DC.
AASHTO. (2011f). “Standard method of test for recovery of asphalt binder from solution by Abson method.” T170, Washington, DC.
Anderson, D., Christensen, D., and Bahia, H. (1991). “Physical properties of asphalt cement and the development of performance related specifications.” J. Assoc. Asphalt Pav. Technol., 60, 437–475.
Bonaquist, R. (2005). “New approach for the design of high RAP HMA.” 2005 Northeast Asphalt User’s Producer’s Group Meeting.
Bonaquist, R. (2007). “Can I run more RAP?” Hot Mix Asphalt Technol., 10(5), 11–13.
Christensen, D., and Anderson, D. (1992). “Interpretation of dynamic mechanical test data for paving grade asphalt.” J. Assoc. Asphalt Pav. Technol., 61, 67–116.
Christensen, D., Pellinen, T., and Bonaquist, R. (2003). “Hirsch model for estimating the modulus of asphalt concrete.” J. Assoc. Asphalt Pav. Technol., 72, 97–121.
Copeland, A. (2011). “Reclaimed asphalt pavement in asphalt mixtures: State of the practice.”, Turner-Fairbank Highway Research Center, Federal Highway Administration, McLean, VA.
Rowe, G., and Sharrock, M. (2011). “Alternate shift factor relationship for describing the temperature dependency of the visco-elastic behavior of asphalt materials.” Transportation Research Board 90th Annual Meeting Compendium of Papers DVD, Transportation Research Board, Washington, DC.
Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 25 • Issue 12 • December 2013
Pages: 1813 - 1821
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Jan 9, 2012
Accepted: Oct 30, 2012
Published online: Nov 3, 2012
Discussion open until: Apr 3, 2013
Published in print: Dec 1, 2013
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