This book provides a comprehensive introduction to the numerical methods for the exterior problems in partial differential equations frequently encountered in science and engineering computing. The coverage includes both traditional and novel methods. A concise introduction to the well-posedness of the problems is given, establishing a solid foundation for the methods.
Using reference electrodes to monitor the electrochemical potential of steel reinforcement in concrete is a well established technique for assessing the severity of corrosion and for controlling cathodic protection systems. This report gives a state-of-the-art overview of the electrochemical and physical characteristics and performance of embeddable reference electrodes for concrete, and the method used for installing them. The report first reviews electrochemical potential and reference electrodes in general. It then assesses the different types of reference electrodes for concrete. Finally, it considers key issues such as location and quality control which need to be considered when installing reference electrodes in steel-reinforced concrete structures.
Reference electrodes in general: Basic concepts; Types of reference
electrodes; Potential scales and potential conversion; Reference electrode
design; Potential measurement; Ideal reference electrode properties;
Phenomena disturbing reference electrode potentials. Reference electrodes for
concrete: Types; Installation of reference electrodes in concrete structures;
Field experiences. References.
Dr Roar Myrdal works for Rescon Mapei AS, Norway. He is a member of Task Group 5 of the European Federation of Corrosion Working Party 11 (Corrosion of Steel in Concrete).
