ISSN: 1945-7553
CODEN: JTEVAB
Published Online: 25 March 2010
Page Count: 12

Evaluation of Fiber-Reinforced Asphalt Mixtures Using Advanced Material Characterization Tests

Kaloush, Kamil Elias
Associate Professor, Dept. of Civil, Environmental and Sustainable Engineering, Arizona State Univ., Tempe, AZ

Biligiri, Krishna Prapoorna
Research Scientist, Dept. of Civil, Environmental and Sustainable Engineering, Arizona State Univ., Tempe, AZ

Zeiada, Waleed Abdelaziz
Graduate Research Associate, Dept. of Civil, Environmental and Sustainable Engineering, Arizona State Univ., Tempe, AZ

Rodezno, Maria Carolina
Graduate Research Associate, Dept. of Civil, Environmental and Sustainable Engineering, Arizona State Univ., Tempe, AZ

Reed, Jordan Xavier
Graduate Research Associate, Dept. of Civil, Environmental and Sustainable Engineering, Arizona State Univ., Tempe, AZ

(Received 27 March 2009; accepted 28 January 2010)

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.

Keywords:
asphalt mixture, polypropylene fibers, aramid fibers, dynamic modulus, permanent deformation, flow number, fatigue cracking, thermal cracking, crack propagation

Paper ID: JTE102442
DOI: 10.1520/JTE102442
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