Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/17179

TitleBehavior of asphalt-rubber hot mixes obtained with high crumb rubber contents
Author(s)Dantas Neto, Silvrano A.
Farias, Márcio Muniz de
Pais, Jorge C.
Pereira, Paulo A. A.
Santos, Luís Picado
KeywordsAsphalt-rubber
Crumb rubber
Asphalt hot mixes
Issue date2003
Abstract(s)This paper shows the results of a study about the mechanical behavior of dense graded asphalt-rubber hot mixes (grading envelope C of DNER-ES 313/97) 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.
TypeConference paper
URIhttp://hdl.handle.net/1822/17179
Peer-Reviewedyes
AccessOpen access
Appears in Collections:C-TAC - Comunicações a Conferências Internacionais

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