Evaluation of fiber-reinforced asphalt mixtures using advanced material characterization tests

Kamil Kaloush, Krishna Prapoorna Biligiri, Waleed Abdelaziz Zeiada, Maria Carolina Rodezno, Jordan Xavier Reed

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Abstract

The objective of this study was to evaluate the material properties of a conventional (control) and fiber-reinforced asphalt mixtures using advanced material characterization tests. The laboratory experimental program included triaxial shear strength, dynamic (complex) modulus, repeated load permanent deformation, fatigue, crack propagation, and indirect tensile strength tests. The data was used to compare the performance of the fiber-modified mixture to the control. The results showed that the fibers improved the mixture's performance in several unique ways against the anticipated major pavement distresses: Permanent deformation, fatigue cracking, and thermal cracking.

Original languageEnglish (US)
JournalJournal of Testing and Evaluation
Volume38
Issue number4
DOIs
Publication statusPublished - Jul 2010

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Keywords

  • Aramid fibers
  • Asphalt mixture
  • Crack propagation
  • Dynamic modulus
  • Fatigue cracking
  • Flow number
  • Permanent deformation
  • Polypropylene fibers
  • Thermal cracking

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Science(all)

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