002-Sacrificial Anodes Paper.pdf (586.61 kB)
Evaluation of galvanic technologies available for bridge structures
conference contribution
posted on 2012-11-22, 11:41 authored by Christian Christodoulou, Gareth K. Glass, John Webb, Vitalis Ngala, S. Beamish, P. GilbertThe use of sacrificial anode technologies to treat corrosion damaged concrete is an option that can be
considered in specific cases. This is a rapidly growing field with many new innovations appearing in the
market. The sacrificial anode technologies currently available are generally less powerful than impressed
current cathodic protection but they are much less complex to apply. The technology requires no installed
power supply and the installation of electrical cables is mainly limited to non-critical monitoring.
Uncontrolled anode-steel shorts present no problems to system function and stray current corrosion of
discontinuous steel is limited. In many cases the technology can be targeted to areas of need. In general,
the output of a sacrificial anode system cannot be adjusted to manage a corrosion risk. However, some
sacrificial anode systems have been used in both an impressed current and a sacrificial role and future
corrosion risk may be addressed by turning the system into an impressed current system, or by applying a
brief impressed current treatment to arrest the corrosion process.
History
School
- Architecture, Building and Civil Engineering
Research Unit
- Centre for Innovative and Collaborative Engineering (CICE)
Citation
CHRISTODOULOU, C. ... et al., 2008. Evaluation of galvanic technologies available for bridge structures. Presented at: Structural Faults and Repair, 12th International Conference, Edinburgh, UK, 10 -12 June 2008, 11pp.Publisher
Engineering Technics Press © The authorsVersion
- AM (Accepted Manuscript)
Publication date
2008Notes
This paper was presented at: Structural Faults and Repair, 12th International Conference, Edinburgh, UK, 10 -12 June 2008. The publisher's website is at: www.structuralfaultsandrepair.comLanguage
- en
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