Thesis
Quantification of cohesive healing of asphalt binder based on dissipated energy analysis
Washington State University
Master of Science (MS), Washington State University
2010
Handle:
https://hdl.handle.net/2376/100968
Abstract
The effect of healing on asphalt material fatigue performance has been considered as an important property which is, at least partially, responsible for the significant difference between the laboratory and the field fatigue behavior. Although many studies have been conducted to characterize the asphalt healing and its mechanisms, very few researchers have clearly identified how different loading conditions can influence the effect of healing in a quantitative way. In addition, few suggestions have been provided on how to integrate the effect of healing to pavement design. This study develops fundamental dissipated energy analysis to quantify cohesive healing in asphalt binder. The key impact factors on healing are evaluated in to a systematic way under different loading and temperature conditions. Healing rate prediction model, modified fatigue life prediction model taking into account the effect of healing, and plateau value prediction model based on relative simple binder dynamic shear rheometer testing are developed, which can be used for a more accurate prediction of asphalt binder fatigue life. The methodology used in this study may also be applied to investigate and quantify adhesive healing at the aggregate-asphalt interface when aggregates are introduced into experimental testing.
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Details
- Title
- Quantification of cohesive healing of asphalt binder based on dissipated energy analysis
- Creators
- Thiyagarajah Sutharsan
- Contributors
- Shihui Shen (Degree Supervisor)
- Awarding Institution
- Washington State University
- Academic Unit
- Civil and Environmental Engineering, Department of
- Theses and Dissertations
- Master of Science (MS), Washington State University
- Publisher
- Washington State University; Pullman, Wash. :
- Identifiers
- 99900525394001842
- Language
- English
- Resource Type
- Thesis