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|Title: ||Site performance of galvanic anodes in concrete repairs|
|Authors: ||Christodoulou, Christian|
Goodier, Chris I.
Austin, Simon A.
|Issue Date: ||2014|
|Publisher: ||© Taylor and Francis (CRC Press)|
|Citation: ||CHRISTODOULOU, C., GOODIER, C.I. and AUSTIN, S.A., 2014. Site performance of galvanic anodes in concrete repairs. IN: Grantham, M, et al (eds). Concrete Solutions 2014. Proceedings of Concrete Solutions, the 5th International Conference on Concrete Repair, 1st-3rd September 2014, Belfast. Boca Raton, Fl: CRC Press, pp. 167-172.|
|Abstract: ||Galvanic anodes can be used to limit the extent of concrete replacement and extend the service
life of patch repairs to reinforced concrete (RC) structures. They respond to changes in environmental conditions
and this attribute has been employed to extend their use.
Traditionally, galvanic anodes are installed within the repair area itself. Although simple to install, this has
certain limitations however, due primarily to the resistivity of the repair material. A recent alternative has
been to install galvanic anodes in pre-drilled cavities in the parent concrete around the perimeter of the patch
This paper reviews and compares the performance of discrete galvanic anodes installed both within the repair
area and parent concrete in full-scale RC structures. Results indicate that galvanic anodes installed within
the parent concrete had a more profound effect on the polarisation of the steel around the perimeter of the
patch repair. This provides the empirical basis for alternative designs incorporating galvanic anodes that will
enable increased corrosion protection to the steel reinforcement around the patch repair, which is generally
considered to be at the highest risk.|
|Description: ||This is a conference paper and it is available here with the kind permission of the publisher.|
|Publisher Link: ||http://www.crcpress.com/|
|Appears in Collections:||Conference Papers and Presentations (Architecture, Building and Civil Engineering)|
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