Relationship Between Asphalt Compatibility, Flow Properties, and Oxidative Aging
Studies involving nine SHRP asphalts, RTFO/PAV aged at 80°C for 144 hours, 240 hours, and 480 hours, were conducted to investigate changes in asphalt composition as they relate to flow properties of asphalt binders after oxidative aging according to a colloidal suspension model of asphalt and a phenomenological rate law of oxidation. Unaged and aged asphalt samples were subjected to both chemical/compositional and rheological analysis. The unaged and aged samples were separated into four fractions according to Corbett separation (ASTM D4124-09) to investigate changes in asphalt composition resulting from the aging process. To investigate changes in rheological properties due to laboratory aging the Christensen-Anderson-Marasteanu (CAM) model was modified to generate aging master curves. The parameters generated from aging master curves were found to correlate with material compatibility as measured by asphaltene content in accordance with the colloidal suspension model and phenomenological rate law of oxidation.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/19966814
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Supplemental Notes:
- Abstract used by permission of publisher.
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Authors:
- Pauli, Adam Troy
- Huang, Shin-Che
- Publication Date: 2013-1
Language
- English
Media Info
- Media Type: Print
- Features: Figures; References; Tables;
- Pagination: pp 1-7
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Serial:
- International Journal of Pavement Research and Technology
- Volume: 6
- Issue Number: 1
- Publisher: Chinese Society of Pavement Engineering
- ISSN: 1996-6814
- EISSN: 1997-1400
- Serial URL: http://www.ijprt.org.tw/index.php
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Publication flags:
Open Access (libre)
Subject/Index Terms
- TRT Terms: Aging (Materials); Asphalt pavements; Asphaltene; Bituminous binders; Embrittlement; Flow; Oxidation; Rheological properties
- Subject Areas: Highways; Materials; Pavements; I31: Bituminous Binders and Materials;
Filing Info
- Accession Number: 01480965
- Record Type: Publication
- Files: TRIS
- Created Date: May 8 2013 11:08AM