Electrochemical Devices for Determination of Corrosion Related Values for Reinforced Concrete Structures

摘要

As in many other areas also the construction industry requests more and more methods of online-monitoring of corrosion related values. Monitoring the reinforcement corrosion, which is the main cause for damages or early rehabilitation measures, promises a subjectively higher safety feeling to unexpected lack of usefulness or sudden need for rehabilitation. In the paper a survey of methods and sensors for corrosion monitoring in reinforced concrete structures are presented. Basing on extensive tests as well as in the laboratory as on-site performed in many research projects during the last 10 years different devices and methodologies are described regarding their special features and application areas. Hereby techniques using portable equipments and permanently installed systems are shown. The permanent systems are divided into systems installed during construction of new structures and post-mounted devices for installation in existing structures.