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Title: Analysis of the variation in the fatigue life through four-point bending tests
Author: Pais, Jorge
Pereira, Paulo
Minhoto, Manuel
Fontes, Liseane
Kumar, D.S.N.V.A.
Silva, B.T.A.
Keywords: Asphalt mixtures
Assess the fatigue resistance
Four Point Bending tests
Flexible pavements
Issue Date: 2009
Publisher: Universidade do Minho
Citation: Pais, Jorge C.; Pereira, Paulo; Minhoto, Manuel; Fontes, Liseane; Kumar, D.S.N.V.A.; Silva, B.T.A. (2009) - Analysis of the variation in the fatigue life through four-point bending tests. In Proceedings of the 2nd Workshop on Four-point Bending. University of Minho. p. 287-297. Pais (ed.). ISBN 978-972-8692-42-1
Series/Report no.: 2nd Workshop on Four Point Bending;
Abstract: The fatigue resistance of asphalt mixtures is calculated through laboratory tests which require some time depending on the strain level applied to the specimen. For very low strain levels, identical to the one installed in the pavement of this study, one test may last more than one week depending on the testing frequency. The time needed for the development of the fatigue law may last longer. The number of specimens used to calculate the fatigue resistance of an asphalt mixture plays an important role in the precision of pavement design. Thus, this paper presents a study to evaluate the number of tests to assess the fatigue resistance of asphalt mixtures through the four-point bending technique. The results obtained from the analysis of three different asphalt mixtures tested by applying 3 strain levels and 6 specimens for each strain level were used to evaluate the fatigue resistance dispersion to identify the number of tests to define a fatigue law.
ISBN: 978-972-8692-42-1
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Appears in Collections:DCCP - Artigos em Proceedings Não Indexados ao ISI/Scopus

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