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Publication
Monotoring of the degradation of concrete structures in environments containing chloride ions
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Advisor(s)
Abstract(s)
This study aims to develop a methodology for evaluating the degradation of concrete structures subjected
to aggressive environments containing chloride ions based on the use of monitoring systems with sensors
permanently installed within the structures.
Assays were performed on specimens subjected to controlled media in the laboratory. Measurements
of linear polarization resistance (LPR), ionic resistivity of the concrete and corrosion potential of embedded
rebars and of chloride content in the concrete probes were made.
Analysis of the results based on Evans diagrams, allowed the development of a model based on the
simultaneous monitoring over time of the corrosion potential of the steel reinforcement and its LPR could
the identification of the various phases of the degradation process of concrete structures, particularly in
the initiation phase.
Description
Keywords
monitoring concrete coated reinforcement chlorides