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Permanent link (DOI): https://doi.org/10.7939/R3Z992

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Recalibration of the Unit Strength Method for Determining the Compressive Strength of Grouted Concrete Masonry Open Access

Descriptions

Other title
Subject/Keyword
masonry
unit strength method
grouted masonry
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Ross, Michael D
Supervisor and department
Korany, Yasser (Civil and Environmental Engineering)
Examining committee member and department
Gul, Mustafa (Civil and Environmental Engineering)
Jar, Ben (Mechanical Engineering)
Department
Department of Civil and Environmental Engineering
Specialization
Structural Engineering
Date accepted
2013-03-28T16:06:20Z
Graduation date
2013-06
Degree
Master of Science
Degree level
Master's
Abstract
Using research that is now several decades old, the current Canadian masonry design standard, CSA S304.1-04, prescribes values for masonry design compressive strength based on the compressive strength of the concrete masonry unit and the type of mortar used in construction. The quality of unit production, masonry construction methods, and the theoretical understanding of masonry behaviour have improved significantly since these values were developed. As a consequence, current CSA S304.1-04 correlations between unit and masonry compressive strength values no longer reflect modern masonry construction and have been shown to be too conservative. In this investigation, 140 concrete masonry prisms were constructed for compression testing to recalibrate the tabulated unit strength values. An update to CSA S304.1-04 is proposed which includes strength increases of 33-40% for prisms with type N mortar, 10-30% strength increases for prisms with type S mortar and low unit strength, and 0-12% decreases with high unit strength.
Language
English
DOI
doi:10.7939/R3Z992
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: Microsoft Word - Thesis Revision PostRevisions 2
File author: Michael Ross
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