期刊
CONSTRUCTION AND BUILDING MATERIALS
卷 98, 期 -, 页码 703-712出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2015.08.070
关键词
Asphalt binder; Fatigue; Dynamic shear rheometer; Viscoelastic damage mechanics
Fatigue testing of binders is an important subject in asphalt research and in recent decades several test procedures and analysis methods have been proposed. This paper discusses the application of several analysis methods to two different strain-controlled tests, implemented with the DSR. The fatigue laws obtained from the time sweep (TST) and the linear amplitude sweep (LAS) tests with the traditional failure limits, based on a fixed stiffness reduction value, are quite different. Using LAS, with maximum shear stress as failure criterion, gives rise to better results that can be further improved when changing the failure criterion to one based on the dissipated pseudo strain energy evolution. (C) 2015 Elsevier Ltd. All rights reserved.
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