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Permanent link (DOI): https://doi.org/10.7939/R3GF0N20F

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High-Float Emulsion Residue: A New Rheological Model Based on the Existence of a Yield Stress Open Access

Descriptions

Other title
Subject/Keyword
yield stress
asphalt
emulsion
rheology
float test
dynamic shear rheometer
high float
binder
viscoelastic
bitumen
road emulsion
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Suda, Justin P
Supervisor and department
Yeung, Anthony (Chemical and Materials Engineering)
Examining committee member and department
Afacan, Artin (Chemical and Materials Engineering)
Yeung, Anthony (Chemical and Materials Engineering)
Liu, Quingxia (Chemical and Materials Engineering)
Liu, Qi (Chemical and Materials Engineering)
Department
Department of Chemical and Materials Engineering
Specialization
Chemical Engineering
Date accepted
2016-09-12T11:56:02Z
Graduation date
2016-06:Fall 2016
Degree
Master of Science
Degree level
Master's
Abstract
“High-float” (HF) emulsions are dispersions of micron-sized bitumen droplets in water, with a special type of anionic surfactant functioning as stabilizer. By allowing the water to evaporate from an HF emulsion, what remains is called a “high-float emulsion residue.” Although indistinguishable in appearance from the original bitumen, the HF emulsion residue possesses rheological properties that are remarkably different from those of bitumen. In particular, the HF residue exhibits a yield stress which prevents it from draining under the influence of gravity even at elevated temperatures. In this study, a new rheological model is proposed for the HF emulsion residue. An experimental procedure is also introduced to measure the yield stress using dynamic shear rheometry.
Language
English
DOI
doi:10.7939/R3GF0N20F
Rights
This thesis is made available by the University of Alberta Libraries with permission of the copyright owner solely for the purpose of private, scholarly or scientific research. This thesis, or any portion thereof, may not otherwise be copied or reproduced without the written consent of the copyright owner, except to the extent permitted by Canadian copyright law.
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