Journal
CONSTRUCTION AND BUILDING MATERIALS
Volume 53, Issue -, Pages 561-567Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2013.12.015
Keywords
Asphalt mixture; Polyester fiber; Permanent strain; Rutting depth; Strain rate
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Funding
- National Natural Science Foundation of China (NSFC) [51378264]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
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The laboratory tests were conducted to evaluate the effects of polyester fiber on permanent deformation of asphalt mixtures. The results indicate the fibers improve the deformation resistance of mixtures. The confinements in the partial triaxial test (PTT) have significant effects on the permanent strain of mixtures. The varying confinement in the PTT better simulates the actual confinements in pavements. A stronger correlation of test results from the PTT and the wheel tracking test was found. It is concluded that the addition of polyester fibers improves the mechanical performance of mixtures, and the PIT method is a reliable new test method. (C) 2013 Elsevier Ltd. All rights reserved.
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