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Title: A rapid method to determine the chloride profile in cement-based materials by using electrical field
Authors: Chung-Chia Yang;Ku-Tao Lin
Contributors: NTOU:Institute of Materials Engineering
Keywords: charge passed;chloride profile;cement-based material
Date: 2011
Issue Date: 2012-06-15T07:16:29Z
Publisher: Journal of the Chinese Institute of Engineers
Abstract: abstract:In this study, the electrochemical technique is applied to accelerate chloride-ion migration in cement-based material to estimate its permeability. This article presents a simplified procedure to obtain the chloride profile in cement-based materials after the accelerated chloride migration test. The chloride profile can be obtained from the total amount of chloride and the surface chloride content. A good correlation is observed between the charge passed and the total amount of chloride during the non-steady-state condition, and the approximate surface chloride content can be obtained from the chloride content at the first slice (about 5 mm thickness). A simplified procedure using the charge passed and the near surface chloride content is developed to obtain the chloride profile. The chloride penetration depth is determined from the profile and the depth can be used to determine the non-steady-state chloride migration coefficient.
Relation: 34(6), pp.759-768
Appears in Collections:[Institute of Materials Engineering] Periodical Articles

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