Micromechanical finite element modeling of moisture damage in bituminous composite materials

Ziad G. Ghauch, Hasan Ozer, Imad L. Al-Qadi

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

This study numerically investigates the effect of moisture presence on the microscale and macroscale responses of bituminous composite materials such as Asphalt Concrete (AC). A micromechanical modeling framework based on the Finite Element (FE) method was developed. The microstructure of the material was characterized using the non-destructive X-ray Computed Tomography (CT) technique. Images obtained from X-ray CT scans were used to generate FE-based micromechanical models. A computationally efficient hydro-micromechanical framework that bridges the microscale features of AC materials to the corresponding macroscale linear viscoelastic properties was presented. The micromechanical model provides a micromechanical based approach for quantifying the contribution of cohesive and adhesive damage to the overall material response of particulate composite in the presence of moisture.

Original languageEnglish (US)
Pages (from-to)9-17
Number of pages9
JournalConstruction and Building Materials
Volume80
DOIs
StatePublished - Apr 1 2015
Externally publishedYes

Keywords

  • Asphalt concrete
  • Finite element method
  • Micromechanical modeling
  • Moisture damage

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

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