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Revista Ingenierías Universidad de Medellín

versão impressa ISSN 1692-3324


RONDON, Hugo Alexánder  e  REYES, Fredy. Permanent strain of granular materials in flexible pavements: state of the art. Rev. ing. univ. Medellin [online]. 2009, vol.8, n.14, pp.71-94. ISSN 1692-3324.

Several studies have been conducted in pavement field for trying to understand the elastoplastic behavior experienced by granular materials under a cyclic load. This is the second out of two articles which show state-of-the-art of researches conducted in this field. Based on a wide literature review, this article accounts for the way how permanent strain phenomenon has been studied in granular materials used for creating base and sub-base layers of flexible pavement structures. Besides, this article displays and discusses factors which affect resistance to permanent strain and evolution of mathematical equations developed for predicting that strain experienced by these materials under a cyclic load. A state-of-the-art about resilient behavior of these materials has been presented in the first article (Rondón and Reyes, 2007).

Palavras-chave : Permanent strain; state-of-the-art; granular materials; flexible pavements.

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