Fatigue resistance of asphalt binders: Assessment of the analysis methods in strain-controlled tests

R. Micaelo, André Pereira, Luís Quaresma, M. T. Cidade

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

Fatigue testing of binders is an important subject in asphalt research and in recent decades several test procedures and analysis methods have been proposed. This paper discusses the application of several analysis methods to two different strain-controlled tests, implemented with the DSR. The fatigue laws obtained from the time sweep (TST) and the linear amplitude sweep (LAS) tests with the traditional failure limits, based on a fixed stiffness reduction value, are quite different. Using LAS, with maximum shear stress as failure criterion, gives rise to better results that can be further improved when changing the failure criterion to one based on the dissipated pseudo strain energy evolution.

Original languageEnglish
Pages (from-to)703-712
Number of pages10
JournalConstruction And Building Materials
Volume98
DOIs
Publication statusPublished - 15 Nov 2015

Keywords

  • Asphalt binder
  • Dynamic shear rheometer
  • Fatigue
  • Viscoelastic damage mechanics

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