Evaluación del efecto rejuvenecedor de bio-materiales sobre ligantes para mezclas con alto contenido de asfalto recuperado

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

doi:10.3989/mc.2017.04516

Autores/as

A. Jiménez del Barco-Carrión Nottingham Transportation Engineering Centre (NTEC), University of Nottingham https://orcid.org/0000-0002-2135-5455
M. Pérez-Martínez L’UNAM Université, Institut Française des Sciences, et Technologies des Transports, de l’Aménagement et des Réseaux (IFSTTAR) https://orcid.org/0000-0002-8194-768X
A. Themeli L’UNAM Université, Institut Française des Sciences, et Technologies des Transports, de l’Aménagement et des Réseaux (IFSTTAR) https://orcid.org/0000-0003-0191-0228
D. Lo Presti Nottingham Transportation Engineering Centre (NTEC), University of Nottingham https://orcid.org/0000-0002-5125-8074
P. Marsac L’UNAM Université, Institut Française des Sciences, et Technologies des Transports, de l’Aménagement et des Réseaux (IFSTTAR) https://orcid.org/0000-0002-9021-7419
S. Pouget Eiffage Infrastructures, Direction de Recherche et Innovation https://orcid.org/0000-0003-3857-6569
F. Hammoum L’UNAM Université, Institut Française des Sciences, et Technologies des Transports, de l’Aménagement et des Réseaux (IFSTTAR) https://orcid.org/0000-0001-8449-9707
E. Chailleux L’UNAM Université, Institut Française des Sciences, et Technologies des Transports, de l’Aménagement et des Réseaux (IFSTTAR) https://orcid.org/0000-0001-8425-577X
G. D. Airey Nottingham Transportation Engineering Centre (NTEC), University of Nottingham https://orcid.org/0000-0002-2891-2517

DOI:

https://doi.org/10.3989/mc.2017.04516

Palabras clave:

Bio-material, Betún, Envejecimiento, Reciclado, Reología

Resumen

El interés en la utilización de bio-materiales en ingeniería de pavimentos ha crecido significantemente en las últimas décadas debido a la conciencia ambiental sobre el uso de recursos naturales no renovables. En este artículo, se utilizan bio-materiales para recuperar las propiedades iniciales del betún envejecido presente en mezclas con alto contenido de asfalto reciclado (RA). Para ello, se ha estudiado y comparado el comportamiento de dos bio-materiales con betunes convencionales y betunes modificados con polímeros. Con este objetivo, se fabricaron mezclas de bio-materiales y betún reciclado simulando mezclas asfálticas con 50% de contenido de reciclado. El efecto rejuvenecedor de los bio-materiales se ha evaluado y comparado con el efecto rejuvenecedor de ligantes convencionales mediante el cálculo de las distribuciones de peso molecular aparente y diferentes parámetro reológicos. Los resultados muestran el poder rejuvenecedor de los bio-materiales, poniendo de manifiesto su potencial para usarse como ligantes vírgenes en mezclas asfálticas con alto contenido de reciclado.

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