Abstract
The present study focuses on the experimental investigation of the mechanical response of recycled asphalt mixtures (RAP) using a full-field measurement technique: the grid method. Four hot mixture asphalt (HMA) specimens containing 0, 20, 40, and 100 % of RAP were prepared. Aggregates of different colors were selected in order to distinguish RAP and virgin aggregates. Compression tests were then carried out during which the displacement and strain fields were measured. It was found that the 100 % RAP specimen exhibits highly concentrated strain distributions around the aggregates. Strain is more homogeneously distributed over the specimen surface of virgin mixes. The analysis of the local behavior of RAP showed a local stiffening of the binder along the border of the RAP aggregates. The obtained results highlight the difference in behavior between specimens both at the micro- and the macro-scales.
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Acknowledgment
The Auvergne Regional Council, is gratefully acknowledged for providing the financial support of this study.
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© 2017 The Society for Experimental Mechanics, Inc.
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Teguedi, MC., Toussaint, E., Blaysat, B., Grédiac, M., Moreira, S., Liandrat, S. (2017). Studying the Influence of the Reclaimed Asphalt Pavement (RAP) on Local Deformation Properties of Asphalt Mixtures. In: Zhu, Y., Zehnder, A. (eds) Experimental and Applied Mechanics, Volume 4. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-319-42028-8_19
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DOI: https://doi.org/10.1007/978-3-319-42028-8_19
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