Evaluation of online systems for monitoring the degradation of concrete structures in WWTPs, subject to sulfate environments, for inclusion in BIM-Maintenance

摘要

This work presents the results of the monitoring of reinforced concrete structures subject to attack by sulfates to provide information for BIM maintenance systems. Tests were performed on a laboratory scale and in real environment through the installation of sensors in the WWTP. The systems consist of probes placed inside the concrete and allow the determination of electrochemical measurements, such as ionic resistivity of the concrete and corrosion potential of the reinforcement and linear polarization resistance. In addition, the sulfate content of the concrete was measured throughout the test at various depths. The results allow us to verify that the adopted methodology is valid to fallow the degradation process of reinforced concrete structures subjected to aggressive environments, such as sulfates. The information collected is relevant for use in integrated maintenance management systems.