Sources of Variations When Comparing Concrete Carbonation Results
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Volume 21, Issue 7
Abstract
Carbonation is one of the main concerns for concrete service life in tropical countries. The mechanism and materials that produce it have been widely studied as well as natural and accelerated methods to report and analyze it. In spite of reported investigations, there is a need for information that could allow an adequate interpretation of the results of the standardization process. This lack of information can produce variations not only in the interpretation but also in the predictions of service life. The purpose of this paper is to analyze and discuss variables that could be sources of error, especially when performing accelerated tests. As a result, a methodologies to minimize variations when interpreting and comparing results is proposed, such as specimen geometry and preconditioning, spacing, relative humidity, and concentration.
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Acknowledgments
The writers would like to thank the State of São Paulo Research Foundation for financial support.
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Information & Authors
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Published In
Journal of Materials in Civil Engineering
Volume 21 • Issue 7 • July 2009
Pages: 333 - 342
Copyright
© 2009 ASCE.
History
Received: Feb 5, 2008
Accepted: Jan 15, 2009
Published online: Jun 15, 2009
Published in print: Jul 2009
Notes
Note. Associate Editor: Clarissa F. Ferraris
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