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|Title:||Influence 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.
Asphalt hot mixes
|Journal:||Road 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.|
|Appears in Collections:||CEC-VC - Artigos em Revistas Internacionais|
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