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Article Dans Une Revue Materiales de construccion Année : 2017

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

Résumé

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 δ-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.
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Dates et versions

hal-01609000 , version 1 (03-10-2017)

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Ana Jimenez del Barco-Carrion, Miguel Perez Martinez, Andréa Themeli, Davide Lo Presti, Paul Marsac, et al.. Evaluation of bio-materials' rejuvenating effect on binders for high-reclaimed asphalt content mixtures. Materiales de construccion, 2017, 67 (327), ⟨10.3989/mc.2017.04516⟩. ⟨hal-01609000⟩
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