Influence of Water on the Rheological Properties of Asphalt Mastics Fabricated with Fillers Having Different Mineralogical Compositions

This study assesses the influence of the type of aggregates on the mechanical response of asphalt mastics subjected to water conditioning. This topic is relevant because the durability of asphalt mixtures strongly depends on the asphalt-aggregate interaction and, particularly, on the mineralogical properties of the aggregate. Mastic samples were fabricated with a penetration 60−70 (1/10 mm) asphalt binder and two aggregates with different mineralogical compositions: (1) serpentinite, and (2) quartzite. The linear viscoelastic properties of the mastics were quantified after subjecting them to three conditioning processes (i.e., dry, after 10, and after 20 days submerged in water). The viscoelastic and chemical properties of the asphalt binder (i.e., no filler) were tested under the same moisture conditions and used as part of the analysis. The results show an increase in the dynamic modulus of the mastics with conditioning time and, although this increase is partially due to the hardening effect of water in the binder, it was found that it strongly depends on the type of filler.


  • English

Media Info

  • Media Type: Web
  • Pagination: pp 139-149
  • Monograph Title: Airfield and Highway Pavements 2023: Testing and Characterization of Pavement Materials

Subject/Index Terms

Filing Info

  • Accession Number: 01891674
  • Record Type: Publication
  • ISBN: 9780784484913
  • Files: TRIS, ASCE
  • Created Date: Aug 28 2023 9:34AM