engleski

MULTIDEPTH CORROSION MONITORING SYSTEM EVALUATION AND APPLICATION

Deterioration of reinforced concrete structures due to aggressive influences is serious problem worldwide. It is recognized that corrosion of steel reinforcement in concrete is the major reason for serious damages and degradation of RC structures. Proactive maintenance before significant damage occurs to the structure optimizes cost and impact on the structure. To be able to perform proactive maintenance of corroding structures, continuous corrosion monitoring which is able to predict future deterioration is essential. The work presented was focused on the analysis of measurement techniques for corrosion monitoring. Based on the review of the existing test methods and criteria that methods must be non-expensive, relative simple and capable to detect corrosion at early stage three techniques were selected for additional analysis through experiments. Selected techniques are implementation of multidepth sensors for macrocell currents, corrosion potential and electrical resistivity measurements. A series of laboratory measurements and data evaluations, as well as calibration of selected techniques and sensors were carried out.

Corrosion; Monitoring; Modelling

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