Publication Type Journal Article
Title Multiprobe chloride sensor for in situ monitoring of reinforced concrete structures
Authors Maria F. Montemor JH Alves AMP Simoes JCS Fernandes Z Lourenco AJS Costa AJ Appleton MGS Ferreira
Groups
Journal CEMENT \& CONCRETE COMPOSITES
Year 2006
Month March
Volume 28
Number 3
Pages 233-236
Abstract in situ monitoring of the chloride content is one of the most important procedures in preventing and controlling chloride-induced corrosion in reinforced concrete structures. Thus, the development of chloride sensors is of paramount importance for the continuous monitoring of concrete structures. The sensors must present long lifetime and reliability and operate in a wide range of chloride concentrations. The present work aims at developing and testing a sensor based on Ag/AgCl electrodes for in situ monitoring of chloride ions in reinforced concrete structures. Although these electrodes are widely used in analytical experiments due to their sensitivity to the chloride ion, little is known on their behaviour during exposure to alkaline environments, such as those existing in concrete. The multiprobe sensor presented in this work was tested in mortar and concrete specimens, revealing good stability. The results reveal that the Ag/AgCl sensor presents good sensitivity in a wide range of chloride concentrations. (c) 2006 Elsevier Ltd. All rights reserved.
DOI http://dx.doi.org/10.1016/j.cemconcomp.2006.01.005
ISBN
Publisher
Book Title
ISSN 0958-9465
EISSN
Conference Name
Bibtex ID ISI:000236322400005
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