Journal article
Effects of High Reclaimed Asphalt-Pavement Content on the Binder Grade, Fatigue Performance, Fractionation Process, and Mix Design
Journal of materials in civil engineering, Vol.29(2), p.4016218
02/01/2017
DOI: 10.1061/(ASCE)MT.1943-5533.0001694
Abstract
AbstractThe primary objective of this research is to examine the effects of reclaimed asphalt pavement (RAP) amounts and fractionation methods on the mix design of high-RAP content surface mixes. To determine the distribution of fine aggregates and binder in RAP stockpile, the sieve-by-sieve analysis of RAP materials was performed. A single virgin asphalt binder performance grade modification was effective in mitigating the negative effect of the aged RAP binder. On the basis of the beam fatigue test, there was no significant change in predicted fatigue life of asphalt mixtures with high-RAP contents. Nine mix designs were performed for mixtures with three different amounts of RAP contents and three different fractionation methods. When the RAP materials were fractionated, the film thickness increased and the dust-binder ratio decreased. Only the fractionated RAP mix with 30% RAP materials met all mix design criteria, including the Iowa Department of Transportation’s film thickness requirement.
Details
- Title: Subtitle
- Effects of High Reclaimed Asphalt-Pavement Content on the Binder Grade, Fatigue Performance, Fractionation Process, and Mix Design
- Creators
- Cory Shannon - University of IowaAli Mokhtari - University of IowaHosin “David” Lee - University of IowaSheng Tang - Iowa State UniversityChris Williams - Iowa State UniversityScott Schram
- Resource Type
- Journal article
- Publication Details
- Journal of materials in civil engineering, Vol.29(2), p.4016218
- Publisher
- American Society of Civil Engineers
- DOI
- 10.1061/(ASCE)MT.1943-5533.0001694
- ISSN
- 0899-1561
- eISSN
- 1943-5533
- Language
- English
- Date published
- 02/01/2017
- Academic Unit
- Iowa Technology Institute; Civil and Environmental Engineering; International Programs
- Record Identifier
- 9984197110402771
Metrics
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