Study of the effect of filler on the fatigue behaviour of bitumen-filler mastics under DSR testing

R. Micaelo, A. Guerra, L. Quaresma, M. T. Cidade

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

This study discusses the effect of the filler on the fatigue behaviour of bitumen-filler mastics by means of strain controlled fatigue tests, with constant and variable load amplitude, implemented in the DSR. Diluted and concentrated mastics were fabricated with two fillers and two bitumens. The results showed that though the generic behaviour is highly dependent on the bitumen, the effect of the filler is not only related to the increase of stiffness but, more importantly, it is seen in the response to repeated loading. Hence, the fatigue performance was significantly more affected by the increase in content of hydraulic lime than of limestone filler.

Original languageEnglish
Pages (from-to)228-238
Number of pages11
JournalConstruction and Building Materials
Volume155
DOIs
Publication statusPublished - 30 Nov 2017

Keywords

  • Bituminous mastic
  • Dynamic shear rheometer
  • Mineral filler
  • Rheological properties
  • Viscoelastic damage mechanics

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