Progress in Sensors for Monitoring Reinforcement Corrosion in Reinforced Concrete Structures—A Review

Abstract

Non-destructive monitoring methods and continuous monitoring systems based on them are crucial elements of modern systems for the management and maintenance of assets which include reinforced concrete structures. The purpose of our study was to summarise the data on the most common sensors and systems for the non-destructive monitoring of reinforced concrete structures developed over the past 20 years. We considered systems based on electrochemical (potentiometry, methods related to polarisation) and physical (electromagnetic and ultrasonic waves, piezoelectric effect, thermography) examination methods. Special focus is devoted to the existing sensors and the results obtained using these sensors, as well as the advantages and disadvantages of their setups or other equipment used. The review considers earlier approaches and available commercial products, as well as relatively new sensors which are currently being tested.

Electrochemical Sensors for Controlling Oxygen Content and Corrosion Processes in Lead-Bismuth Eutectic Coolant—State of the Art

“…At the moment, the Electrochemical Impedance Spectroscopy method is widely used to monitor the corrosion processes in various environments [ 68 , 69 , 70 , 71 , 72 ]. This method is used to study the structure of corrosion deposits and the mechanism of their formation [ 73 ], the resistance of coatings on the surface of materials [ 74 ] and the effectiveness of corrosion inhibitors [ 75 ].…”

Corrosion in structural elements of the satellite unit of a reference hospital in Ceará, Brazil

“…However, there have been several incidences when such structures necessitate maintenance far before the end of the design lifetime. Shevtsov et al (2022) highlights that reinforced structures are susceptible to collapse when deprived to timely and proper maintenance. Most cases of premature deterioration of reinforced concrete structures are due to corrosion of reinforcements.…”

A Biomineralization, Mechanical and Durability Features of Bacteria-Based Self-Healing Concrete—A State of the Art Review

“…Numerous reviews are currently being written about sensors for determining the corrosion status of concrete reinforcement. Some of them, such as electrochemical ones, are focused on a detailed examination of certain methodologies [209], chloride content regulation [210], fiber-optic [211], piezoelectric [12], and others. In other investigations, which are often conducted in lab settings, types of techniques are covered in detail, along with certain specific applications of sensor designs [212].…”

“…Corrosion is a process that is significantly influenced by temperature, which enhances the pace of reaction [11]. The most prevalent cause of RC constructions failing early is rusting of the reinforcements [12]. Chlorides, which are created by chemical manufacturers and are present in seawater, antifreeze, and other goods, are primarily responsible for rusting [13].…”