Evaluation of fatigue performance of high RAP-WMA mixtures
The present work investigates the influence of asphalt modifiers at the beginning of the fatigue process through the mixture damage accumulation. In this sense, this paper uses the Simplified Viscoelastic Continuum Damage (S-VECD) methodology to compare the fatigue performance of a 50% reclaimed asphalt pavement (RAP) warm mix asphalt (WMA) to a 50% RAP hot mix asphalt (HMA), and five different asphalt mixtures with and without modifiers. Results show that combining WMA (foaming process) with 50% RAP mixture significantly improved the fatigue performance of the mixture, including in comparison with an HMA using 100% virgin materials. Therefore, considering the advantages presented by a 50% RAP WMA, e.g. lower environmental impact, lower cost and good fatigue performance, the warm mix recycling is a promising alternative for performance optimization.
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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:
- © Chinese Society of Pavement Engineering. Production and hosting by Springer Nature 2019.
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Authors:
- Padula, Flávio R G
- Nicodemos, Sidney
- Mendes, Júlia C
- Willis, Richard
- Taylor, Adam
- Publication Date: 2019-7
Language
- English
Media Info
- Media Type: Web
- Features: Figures; References; Tables;
- Pagination: pp 430-434
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Serial:
- International Journal of Pavement Research and Technology
- Volume: 12
- Issue Number: 4
- Publisher: Springer Publishing
- ISSN: 1996-6814
- EISSN: 1997-1400
- Serial URL: https://link.springer.com/journal/42947
Subject/Index Terms
- TRT Terms: Fatigue (Mechanics); Reclaimed asphalt pavements; Warm mix paving mixtures
- Identifier Terms: Viscoelastic Continuum Damage Model
- Uncontrolled Terms: Asphalt modifiers
- Subject Areas: Highways; Materials; Pavements;
Filing Info
- Accession Number: 01715924
- Record Type: Publication
- Files: TRIS
- Created Date: Sep 9 2019 3:06PM