Effect of filler on performance of porous asphalt pavement using multiscale finite element method

Cong Du, Guoyang Lu, Haopeng Wang, Yiren Sun, Pengfei Liu, Dawei Wang, Sabine Leischner, Markus Oeser

Research output: Journal article publicationJournal articleAcademic researchpeer-review

2 Citations (Scopus)


Porous asphalt (PA) pavements are widely employed in areas with wet climates. As particle enhancement inclusions in asphalt mastic, mineral fillers play essential roles in improving the performance of PA pavements. This study developed a coupled multiscale finite element (FE) model, involving the mesostructure of PA mixture and PA pavement. Four types of mastic properties were employed with four mineral fillers (Granodiorite, Limestone, Dolomite, and Rhyolite) in the mesoscale portion of the pavement model to analyse the effects of filler types on the performance of pavements. The performances (load-bearing capacity, rutting resistance, and ravelling resistance) of pavements with different fillers were identified and ranked, and their correlations with the chemical components of the four fillers were analysed. The computational results showed that pavements with Rhyolite and Granodiorite fillers have higher load-bearing capacities and rutting resistance, while the Limestone and Dolomite fillers can improve the ravelling resistance of the PA pavements. In the correlation analysis, the chemical components Al2O3 and SiO2 play dominant roles in improving the load-bearing capacities and rutting resistance of the PA pavements, and the fillers with high percentages of CaO can improve the ravelling resistance of the PA pavements.

Original languageEnglish
JournalInternational Journal of Pavement Engineering
Publication statusAccepted/In press - 2021


  • chemical components
  • correlation analysis
  • mineral filler
  • multiscale finite element model
  • Porous asphalt pavement

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Mechanics of Materials

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