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Evaluation of bio-materials’ rejuvenating effect on binders for high-reclaimed asphalt content mixtures

Jiménez del Barco Carrión, Ana; Perez-Martinez, M.; Themeli, A.; Lo Presti, Davide; Marsac, P.; Pouget, Simon; Hammoum, F.; Chailleux, Emmanuel; Airey, Gordon

Authors

Ana Jiménez del Barco Carrión

M. Perez-Martinez

A. Themeli

Davide Lo Presti

P. Marsac

Simon Pouget

F. Hammoum

Emmanuel Chailleux

Gordon Airey



Abstract

The interest in using bio-materials in pavement engineering has grown significantly over the last decades due to environmental concerns about the use of non-recoverable natural resources. In this paper, bio-materials are used together with Reclaimed Asphalt (RA) to restore some of the properties of the aged bitumen present in mixtures with high RA content. For this purpose, two bio-materials are studied and compared to conventional and polymer modified bitumens. Blends of these materials with RA bitumen were produced and studied to simulate a 50% RA mixture. The rejuvenating effect of the two bio-materials on RA has been assessed and compared with the effect of the conventional binders. Apparent Molecular Weight Distribution of the samples (obtained by the ?-method) and different rheological parameters were used for this purpose. Results revealed the power of bio-materials to rejuvenate RA bitumen, showing their capability to be used as fresh binders in high-RA content mixtures.

Journal Article Type Article
Journal Materiales de Construcción
Print ISSN 0465-2746
Electronic ISSN 1988-3226
Publisher Consejo Superior de Investigaciones Científicas
Peer Reviewed Peer Reviewed
Volume 67
Issue 327
APA6 Citation Jiménez del Barco Carrión, A., Perez-Martinez, M., Themeli, A., Lo Presti, D., Marsac, P., Pouget, S., …Airey, G. (in press). Evaluation of bio-materials’ rejuvenating effect on binders for high-reclaimed asphalt content mixtures. Materiales de Construcción, 67(327), https://doi.org/10.3989/mc.2017.04516
DOI https://doi.org/10.3989/mc.2017.04516
Keywords Bio-material; Reclaimed asphalt; High content; Rejuvenation; Rheology
Publisher URL http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/2184
Copyright Statement Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0
Additional Information Published in July-September 2017 issue.

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0



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