Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.21/576
Título: Asphalt rubber mixtures in Portugal: fatigue resistance
Autor: Miranda, Henrique
Batista, Fátima
Neves, José
Antunes, Maria de Lurdes
Fonseca, Paulo
Palavras-chave: Engenharia civil
Mistura betuminosa
Borracha
Data: Mai-2009
Editora: Instituto Politécnico de Lisboa
Citação: Miranda H, Batista F, Neves J, Antunes ML, Fonseca P. Asphalt rubber mixtures in Portugal: fatigue resistance. Alicerces. 2009;II(2):97-106.
Resumo: This paper presents a study concerning the fatigue behaviour of asphalt mixtures with bitumen modified with high content of crumb rubber used in Portugal. For assessing the fatigue behaviour of this type of mixtures, four asphalt mixtures with high content of crumb rubber were used: two field bituminous mixtures – an open-graded and a gap-graded – both with granite aggregates; and two laboratory manufactured bituminous mixtures – an open-graded mixture with granite aggregates and a gap-graded mixture with crushed gravel aggregates. Since this type of mixtures are mainly applied in wearing courses, the effect of ageing in the fatigue behaviour of one of the studied asphalt rubber mixtures was also assessed through laboratory testing. The paper presents the main results achieved so far concerning the fatigue resistance and it could be concluded that all the materials have exhibited a good behaviour, in agreement with others previous studies. In the case of the aged gap-graded material, it was observed a slight reduction on the fatigue life comparatively to the un-aged one.
Peer review: yes
URI: http://hdl.handle.net/10400.21/576
ISSN: 1645-7943
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