Details

Autor(en) / Beteiligte

• Jiménez del Barco-Carrión, A.
• García-Travé, G.
• Moreno-Navarro, F.
• Martínez-Montes, G.
• Rubio-Gámez, M. C.

Titel

Comparison of the effect of recycled crumb rubber and polymer concentration on the performance of binders for asphalt mixtures

Ist Teil von

• Materiales de construcción (Madrid), 2016-07, Vol.66 (323), p.e090-e090

Ort / Verlag

Madrid: Consejo Superior de Investigaciones Científicas

Erscheinungsjahr

2016

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• Crumb rubber modified binders are environmental-friendly alternatives to polymer modified bitumens in asphalt mixtures. This paper compares the performance of both types of binders with different modifier contents. Six binders were characterised by conventional tests and analysed using the UCL method. This method evaluates different properties of binders regarding their role in asphalt mixtures (cohesion, water and thermal sensitivity and resistance to ageing). Results showed that i) crumb rubber concentration has to be higher than that of SBS-polymers in order to obtain a similar performance to that of SBS-polymer modified bitumen; ii) crumb rubber modified binders are more stable than SBS-polymer modified binders in terms of modifier concentration; iii) crumb rubber modified binders exhibited less water sensitivity and similar thermal and ageing susceptibility to SBS-polymer modified binders; iv) linear relationships have been found between modifier concentration and the properties studied for both kind of binders.