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Permanent link (DOI): https://doi.org/10.7939/R3S17T187

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Development of a New Slump Test Method to Measure the Rheological Properties of Cement Paste Open Access

Descriptions

Other title
Subject/Keyword
Cement paste, Workability
Mini slump follow test
Rheology properties of cement paste
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Vafakhah,Hooman
Supervisor and department
Yaman, Boluk (Environmental Engineering)
Examining committee member and department
Vivek, Bindiganavile (Environmental Engineering)
Mustafa, Gul (Environmental Engineering)
Department
Department of Civil and Environmental Engineering
Specialization
Structural Engineering
Date accepted
2013-05-08T16:03:50Z
Graduation date
2013-11
Degree
Master of Science
Degree level
Master's
Abstract
A new and cost effective technique is developed to measure the rheological properties of cement paste and is validated through experiment and analytical analysis with the use of flow table. Instead of conventional methods, such as free flow test and modified mini slump test without drops, the technique of slump test (ASTM C1437) with impact force was utilized. To date there has been no study to measure viscosity from mini slump test with impact force. The yield stress and the plastic viscosity of cement pastes were determined using AR-G2 rheometer. Rheology tests were conducted on more than twenty cement paste specimens with different proportions of cellulose nano fibrillated and sucrose producing different yield stress and viscosity. The correlation between the rheological parameters and mini slump tests were investigated from the experimental graphs of shear stress and viscosity versus shear rate. Plots of viscosity versus drop data were acquired through both experiment and analytical calculations. Based on our experiment, the formulas have been found, indicating the effectiveness of mini slump test instead of rheological analysis for the specific cement paste case.
Language
English
DOI
doi:10.7939/R3S17T187
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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File title: part1
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