Determination of Crumb Rubber Content of Asphalt Rubber Binders
Publication: Journal of Materials in Civil Engineering
Volume 30, Issue 4
Abstract
The study focused on two new laboratory procedures developed for the determination of crumb rubber content of asphalt rubber binders. The first methodology was on the basis of the comparative analysis of cobalt and antimony content of base bitumen, crumb rubber, and asphalt rubber. The second was on the basis of the analysis of combustion products of asphalt rubber binders and of their components. Investigations were performed on binders prepared in the laboratory or sampled at production plants during pavement rehabilitation works. Obtained results were encouraging because it was found that both procedures were characterized by satisfactory levels of accuracy and precision.
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Acknowledgments
The investigation described in this paper was carried out as part of the POLIPNEUS and TyRec4LIFE research projects, respectively funded by Ecopneus S.c.p.A. and by the European Commission.
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Published In
Journal of Materials in Civil Engineering
Volume 30 • Issue 4 • April 2018
Copyright
©2018 American Society of Civil Engineers.
History
Received: Mar 30, 2017
Accepted: Sep 21, 2017
Published online: Jan 29, 2018
Published in print: Apr 1, 2018
Discussion open until: Jun 29, 2018
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