Moisture susceptibility of asphalt mixtures, Part 2: Characterisation and modelling

S. Caro*, E. Masad, A. Bhasin, D. N. Little

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

89 Citations (Scopus)

Abstract

Moisture damage in asphalt pavements is the degradation of the mechanical properties of the asphalt composite due to the action of water. In a companion paper the mechanisms of moisture damage were discussed. It was established that in order to characterise moisture damage in asphalt mixtures, it is important to comprehensively describe and model the effect of thermodynamic, chemical, physical, and mechanical processes. This paper discusses existing tests and analytical methods that can be used to assess and quantify moisture damage potential in asphalt mixtures. These methods range from visual qualification of asphalt binder stripped from the aggregate, to analytical-based models that include multiple material properties derived using fracture mechanics, continuum mechanics, thermodynamics, and/or micromechanics. In addition, this paper presents a new approach for classifying moisture damage, which emphasises recent analytical developments. Finally, advances in the mathematical modelling of moisture damage are summarised and future research efforts in this area are identified.

Original languageEnglish
Pages (from-to)99-114
Number of pages16
JournalInternational Journal of Pavement Engineering
Volume9
Issue number2
DOIs
Publication statusPublished - Apr 2008
Externally publishedYes

Keywords

  • Asphalt mixtures
  • Damage
  • Moisture damage
  • Stripping

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