Application of Thixotropy to Analyze Fatigue and Healing Characteristics of Asphalt Binder

Liyan Shan; Yiqiu Tan; Shane Underwood; Y. Richard Kim

doi:10.3141/2179-10

journal article Jan 01, 2010

Application of Thixotropy to Analyze Fatigue and Healing Characteristics of Asphalt Binder

Liyan Shan

Yiqiu Tan Shane Underwood Y. Richard Kim

Transportation Research Record: Journal of the Transportation Research Board Vol. 2179 No. 1 pp. 85-92 · SAGE Publications

View at Publisher Save 10.3141/2179-10

Abstract

The fatigue performance of asphalt binder is critical to understanding the fatigue performance of asphalt mixtures, especially the effects of healing. Although research into the fatigue and healing characteristics of asphalt binder is found in numerous references, an efficient technique to evaluate these characteristics still does not exist. Thixotropy is a concept that may help explain the material behavior and provide an efficient evaluation technique. This property is related to the breakdown and buildup of microstructure that may cause the changes observed during fatigue and healing tests. Thus, tracking the thixotropy of asphalt binders may be a good method to study fatigue and healing. For this study, experiments were performed to characterize the fatigue and healing characteristics of three typical asphalt binders. Then a common thixotropic model was characterized with a relatively simple stepped-flow test and oscillation experiment. The resulting model shows good correlation with the measured fatigue and healing tests. This finding, though based on a limited number of binders, suggests that thixotropy may play a role in the fatigue and healing characteristics of asphalt binder.

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Metrics

77

Citations

28

References

Details

Published: Jan 01, 2010
Vol/Issue: 2179(1)
Pages: 85-92
License: View

Authors

L

Liyan Shan

202 Haihe Road, School of Transportation Science and Engineering, Harbin Institute of Technology, Nangang District, Harbin 150090, China.

Y

Yiqiu Tan

73 Huanghe Road, School of Transportation Science and Engineering, Harbin Institute of Technology, Nangang District, Harbin 150090, China.

S

Shane Underwood

216C Mann Hall, Department of Civil, Construction, and Environmental Engineering, North Carolina State University, 2501 Stinson Drive, Raleigh, NC 27695-7908.

Y

Y. Richard Kim

210 Mann Hall, Department of Civil, Construction, and Environmental Engineering, North Carolina State University, 2501 Stinson Drive, Raleigh, NC 27695-7908.

Cite This Article

Liyan Shan, Yiqiu Tan, Shane Underwood, et al. (2010). Application of Thixotropy to Analyze Fatigue and Healing Characteristics of Asphalt Binder. Transportation Research Record: Journal of the Transportation Research Board, 2179(1), 85-92. https://doi.org/10.3141/2179-10

Application of Thixotropy to Analyze Fatigue and Healing Characteristics of Asphalt Binder

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