- Title
- Changing our understanding of reinforcement corrosion in marine concrete structures
- Creator
- Melchers, R. E.
- Relation
- 16th East Asian-Pacific Conference on Structural Engineering and Construction, EASEC16. Proceedings of the 16th East Asian-Pacific Conference on Structural Engineering and Construction (Brisbane, Qld. 13-16 November, 2019) p. 43-52
- Publisher Link
- http://dx.doi.org/10.1007/978-981-15-8079-6_4
- Publisher
- Springer Nature
- Resource Type
- conference paper
- Date
- 2021
- Description
- Existing theory and models do not well-predict the onset of chloride-induced reinforcement corrosion compared with observations and practical experience for actual concrete structures. Despite very high levels of chlorides early corrosion (initiation) may occur but this usually stops or becomes very slow. Serious corrosion does not commence until there is extensive loss of concrete calcium hydroxide through leaching to the environment. This is accelerated by the presence of chlorides. Evidence from actual concrete structures shows that this is a very slow process, with little loss even after 75-85 years. The reasons for this are described. The observations and inferences are considered to require a complete re-appraisal of the conventional ideas and concepts associated with 'chloride-induced' reinforcement corrosion.
- Subject
- reinforcement; corrosion; marine; long-term; initiation
- Identifier
- http://hdl.handle.net/1959.13/1451133
- Identifier
- uon:44098
- Identifier
- ISBN:9789811580789
- Language
- eng
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