Accelerated Aging of Asphalt by UV-Oxidation
The aging of asphalt binder due to ultraviolet (UV)-oxidation is a phenomenon that affects the durability and performance of asphalt pavements. This report documents results of accelerated laboratory UV-oxidation tests that have been conducted. Thin-film asphalt binder samples have been oxidized using fluorescent UVA and UVB lamps, and the degree of oxidation was determined by measuring the rotational viscosity of the aged binder. The results show that the viscosity increases with the UV-exposure time. This indicates that rotational viscosity is a suitable method to track the UV-oxidative aging of asphalt and validates its use in further studies of this phenomenon. Additionally two UV-aging models were fitted to the experimental results.
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Supplemental Notes:
- This document was sponsored by the U.S. Department of Transportation, University Transportation Centers Program.
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Corporate Authors:
Manhattan College
4513 Manhattan College Pkwy
Riverdale, NY United States 10471University Transportation Research Center
City College of New York
Marshak Hall, Suite 910, 160 Convent Avenue
New York, NY United States 10031Office of the Assistant Secretary for Research and Technology
University Transportation Centers Program
Department of Transportation
Washington, DC United States 20590 -
Authors:
- Hochstein, Daniel
- Publication Date: 2018-6
Language
- English
Media Info
- Media Type: Digital/other
- Edition: Final Report
- Features: Figures; Photos; References; Tables;
- Pagination: 40p
Subject/Index Terms
- TRT Terms: Aging (Materials); Asphalt; Asphalt pavements; Bituminous binders; Laboratory tests; Oxidation; Ultraviolet light; Viscosity
- Subject Areas: Highways; Maintenance and Preservation; Pavements;
Filing Info
- Accession Number: 01692525
- Record Type: Publication
- Contract Numbers: 49198-18-28
- Files: UTC, TRIS, ATRI, USDOT
- Created Date: Feb 11 2019 4:57PM