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TitleInfluence of crumb rubber and digestion time on the asphalt rubber binders
Author(s)Neto, Silvrano Adonias Dantas
Farias, Márcio Muniz de
Pais, Jorge C.
Pereira, Paulo A. A.
Sousa, Jorge B.
Crumb rubber
Asphalt hot mixes
Asphalt binders
Recycled rubber
Issue date2006
JournalRoad Materials and Pavement Design
Citation"Road Materials and Pavement Design". ISSN 1468-0629. 7:2 2006) 131-148.
Abstract(s)This paper shows the results of a study about the mechanical behavior of dense graded asphalt-rubber hot mixes prepared with two different types of asphalt-rubber binders. These asphalt-rubber binders were obtained with penetration grade asphalt (AC 50/70) mixed with 21% and 25% of crumb rubber in weight. The rubber was recycled from unserviceable tires using the ambient grinding process. Hot mixes made with the conventional binder AC 50/70 were also studied for comparison. The mechanical behavior of hot mixes was evaluated through laboratory tests for fatigue life, permanent deformation and indirect tensile strength. The results showed that asphalt-rubber hot mixes presented better mechanical behavior for fatigue life and permanent deformation than those obtained with the straight binder.
AccessOpen access
Appears in Collections:CEC-VC - Artigos em Revistas Internacionais

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