Accelerated Life Test of Concrete in Chloride Environment
Publication: Journal of Materials in Civil Engineering
Volume 23, Issue 3
Abstract
The accelerated life test of concrete in a chloride environment was carried out with chloride ion migration equipment. The time that elapsed before critical chloride concentration led to reinforcement corrosion was defined in this paper as the service life of concrete. The negative logarithm of chloride ion concentration was linear with the electrochemical potential. The chloride concentration in the anode chamber was an approximate linear relationship and increased with the testing time after a different stage. The service life of concrete in a natural diffusion test could be predicted by the accelerated curve. The results show that the service life of 10 mm concrete cover in the chloride environment is between 11.89 and 12.45 years. The experimental value is in good agreement with the Life-365 prediction.
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Acknowledgments
This research was supported through a research grant from the National Natural Science Foundation of China (No. NNSFC50808045) and an open foundation of State Key Laboratory of coastal and offshore engineering, Dalian University of Technology (No. UNSPECIFIEDLP1013).
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Information
Published In
Journal of Materials in Civil Engineering
Volume 23 • Issue 3 • March 2011
Pages: 330 - 334
Copyright
© 2011 American Society of Civil Engineers.
History
Received: Jun 23, 2009
Accepted: Sep 23, 2010
Published online: Sep 27, 2010
Published in print: Mar 1, 2011
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