Chapter
May 15, 2014
Comparative Study on Performance of Recycled Asphalt Mixtures with Ordinary and High-Viscosity Rejuvenating Agent
Authors: Chenxi Li [email protected] and Songlin MaAuthor Affiliations
Publication: Challenges and Advances in Sustainable Transportation Systems
Abstract
This paper presents a research study to evaluate performance of recycled asphalt pavement (RAP) mixtures with ordinary and high-viscosity rejuvenating agent.Asphalt content in RAP, properties of recycled asphalt, and aggregate gradation curve were determined through centrifugal extraction test. Rutting test, freeze-thaw splitting and bending test were utilized to compare the impact on the percentage of RAP and rejuvenating content. The results indicated that with the increase of the RAP content, high temperature stability will increase, whereas the low-temperature deformation capacity and water stability of recycled mixture will decrease at a certain degree. Compared to RA-1 with higher viscosity, RA-75 can also help improving the recycled mixture in high temperature performance. But the improvement is not significant in recycled mixture with low percentage of RAP content.
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Information
Published In
Challenges and Advances in Sustainable Transportation Systems
Pages: 303 - 310
Copyright
© 2014 American Society of Civil Engineers.
History
Published online: May 15, 2014
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ASCE Technical Topics:
- Aggregates
- Asphalt pavements
- Comparative studies
- Engineering fundamentals
- Engineering materials (by type)
- Impact tests
- Infrastructure
- Laboratory tests
- Material mechanics
- Material properties
- Materials characterization
- Materials engineering
- Measurement (by type)
- Methodology (by type)
- Mixtures
- Pavements
- Recycling
- Research methods (by type)
- Temperature effects
- Temperature measurement
- Tests (by type)
- Transportation engineering
Authors
Affiliations
Postgraduate, Department of Highway and Rail Transit Engineering, Harbin Institute of Technology, Harbin 150006, China. E-mail: [email protected]
Songlin Ma
Professor, Department of Highway and Rail Transit Engineering, Harbin Institute of Technology, Harbin 150006, China
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