Development of an embeddable sensor to monitor the corrosion process of new and existing reinforced concrete structures

An integrated and cost-effective sensor system to monitor the state of reinforced concrete structures from the corrosion point of view was developed. The sensor provides measurements of the open circuit potential of rebars, the corrosion current density of rebars, the electrical resistivity of concr...

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Bibliographic Details
Published inConstruction & building materials Vol. 23; no. 8; pp. 2746 - 2751
Main Authors Duffó, Gustavo S., Farina, Silvia B.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.08.2009
Elsevier B.V
Subjects
Concrete structures
Corrosion
Electric properties
Monitoring
Reinforcement corrosion
Sensors
Steel
Concrete structures
Sensors
Monitoring
Reinforcement corrosion
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Summary:An integrated and cost-effective sensor system to monitor the state of reinforced concrete structures from the corrosion point of view was developed. The sensor provides measurements of the open circuit potential of rebars, the corrosion current density of rebars, the electrical resistivity of concrete, the availability of oxygen, the chloride ions concentration in concrete, and the temperature inside the structure. The integrated system consists of different electrodes embedded in concrete and a software system that acquires and analyses the data. The results obtained so far show the capabilities of this type of sensor to determine the corrosion state of existing as well as new concrete structures.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0950-0618
1879-0526
DOI:10.1016/j.conbuildmat.2009.04.001