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Towards arresting reinforced concrete corrosion-a review
conference contribution
posted on 2019-02-05, 10:37 authored by Christian Christodoulou, Chris GoodierChris Goodier, Gareth K. Glass© 2018 The Authors, published by EDP Sciences. This work reviews developments in the understanding of chloride induced corrosion of steel in concrete from both a kinetic and thermodynamic perspective. Corrosion damage is at least in part attributed to the production of acid at sites of corrosion initiation. Solid phase inhibitors provide a reservoir of hydroxyl ions to inhibit damage. Pit re-alkalisation is identified as an important protective effect in electrochemical treatments used to arrest corrosion. A process like pit re-alkalisation is achieved more easily by impressing current from sacrificial anodes using a power supply which may then be followed by low maintenance galvanic protection to prevent local acidification. Methods for monitoring the steel corrosion rate in electrochemically treated reinforced concrete have been developed and used to assess corrosion risk. Some of these concepts have been adopted in the recent international standard on cathodic protection, ISO 12696:2016, some of the amendments of which are considered in the work presented here.
History
School
- Architecture, Building and Civil Engineering
Published in
International Conference on Concrete Repair, Rehabilitation and Retrofitting (ICCRRR 2018) MATEC Web of ConferencesVolume
199Pages
? - ? (5)Citation
CHRISTODOULOU, C., GOODIER, C.I. and GLASS, G.K., 2018. Towards arresting reinforced concrete corrosion-a review. MATEC Web of Conferences, 199: 05001.Publisher
© The Authors. Published by EDP SciencesVersion
- VoR (Version of Record)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution 4.0 International (CC BY 4.0) licence. Full details of this licence are available at: http://creativecommons.org/licenses/ by/4.0/Acceptance date
2018-04-01Publication date
2018Notes
This paper was presented at the International Conference on Concrete Repair, Rehabilitation and Retrofitting (ICCRRR 2018), Cape Town, 19-21st Nov. This is an Open Access paper. It is published by EDP Sciences under the Creative Commons Attribution 4.0 Unported Licence (CC BY). Full details of this licence are available at: http://creativecommons.org/licenses/by/4.0/eISSN
2261-236XPublisher version
Language
- en