Chapter
Apr 26, 2012
Effectiveness of Advera in Warm Mix Asphalt
Authors: Zahid Hossain [email protected], Musharraf Zaman [email protected], Edgar A. O'Rear [email protected], and Dar-Hao Chen [email protected]Author Affiliations
Publication: Emerging Technologies for Material, Design, Rehabilitation, and Inspection of Roadway Pavements
Abstract
Benefits of warm mix asphalt (WMA) technologies in terms of energy savings and air quality improvements are highly promising. However, further investigations are needed to validate their performance as rheological and viscoelastic data are significantly lacking for material conditions in Oklahoma. To this end, effects of dosage levels of a WMA additive, Advera®, on the performance grade (PG) of a local PG 64-22 binder were evaluated. The effectiveness of a liquid anti-stripping (AS) agent, AD-here® HP Plus, on the WMA-modified binder was also studied. Based on the binder test data, the optimum dosage of Advera® was found to be 6% (by the weight of the binder), which did not alter the PG grade of the base binder. The liquid AS agent was found to be effective in increasing the fatigue fracture resistance of the WMA-modified binder. The current study is expected to enhance the inventory of rheological database and help in implementing WMA mixes in Oklahoma.
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Published In
Emerging Technologies for Material, Design, Rehabilitation, and Inspection of Roadway Pavements
Pages: 9 - 16
Copyright
© 2011 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
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ASCE Technical Topics:
- Aging (material)
- Air pollution
- Air quality
- Asphalts
- Binders (material)
- Deterioration
- Energy efficiency
- Energy engineering
- Engineering fundamentals
- Engineering materials (by type)
- Environmental engineering
- Materials characterization
- Materials engineering
- Materials processing
- Methodology (by type)
- Pollution
- Research methods (by type)
- Rheology
- Validation
Authors
Affiliations
A.M.ASCE
Doctoral Candidate, School of Civil Engineering and Environmental Science, The University of Oklahoma, 202 West Boyd St. #334, Norman, OK 73019.E-mail: [email protected]
F.ASCE
Associate Dean, for Research and Graduate Education, College of Engineering, The University of Oklahoma, 202 West Boyd St. #107, Norman, OK 73019.E-mail: [email protected]
Professor, School of Chemical, Biological and Material Engineering, The University of Oklahoma, 100 East Boyd St, SEC#T-335, Norman, OK 73019.E-mail: [email protected]
M.ASCE
Pavement Engineering Manager IV, Texas Department of Transportation, 13208 Humphrey Drive, Austin, TX 78729.E-mail: [email protected]
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