Details

Autor(en) / Beteiligte

• A Jiménez del Barco-Carrión
• Pérez-Martínez, M
• Themeli, A
• D Lo Presti
• Marsac, P
• Pouget, S
• Hammoum, F
• Chailleux, E
• Airey, G D

Titel

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

Ist Teil von

• Materiales de construcción (Madrid), 2017-07, Vol.67 (327), p.e130

Ort / Verlag

Madrid: Consejo Superior de Investigaciones Científicas

Erscheinungsjahr

2017

Quelle

Electronic Journals Library

Beschreibungen/Notizen

• 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.