| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 6718942 | Construction and Building Materials | 2016 | 7 Pages |
Abstract
The extended shift model is presented as a convenient and effective mechanistic-empirical approach to simulating the densification induced permanent deformation of asphalt concrete under repeated loading. The model is composed of an incremental function that provides a reference deformation curve, and a shift factor function expressed in terms of three variables: reduced pulse time, confining pressure, and vertical stress. The model can be characterized by four triaxial stress sweep tests, and it fits in the state-of-practice frameworks to predict pavement rutting with improved reliability.
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Authors
Wei Cao, Y. Richard Kim,