Synopses & Reviews
- Provides a state-of-the-art overview of the electrochemical and physical characteristics and performance of embeddable reference electrodes for concrete - Considers key issues such as location and quality control
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.
Synopsis
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.
- Provides a state-of-the-art overview of the electrochemical and physical characteristics and performance of embeddable reference electrodes for concrete
- Considers key issues such as location and quality control
About the Author
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).
Table of Contents
Introduction
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: Liquid junction potentials, Temperature, Chemical environment, pH and oxygen sensitive electrodes, Time stability requirements
Reference electrodes for concrete
Types: Silver/silver chloride (Ag/AgC1/KC1), Manganese dioxide (MnO2), Copper/copper sulphate (Cu/CuSO4) and zinc/zinc (Zn/ZnSO4), Lead (Pb) and zinc (Zn), Graphite (C), Mixed metal oxide (MMO), Metal-metal oxide
Installation of reference electrodes in concrete structures: Quality control of embeddable reference electrodes, Location of reference electrodes, Installation procedures
Field experiences
References