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The effect of cyclic wetting and drying on the corrosion rate of steel in reinforced concrete
Preventing chloride-induced reinforcement corrosion in marine concrete structures remains a concern for structural engineers. Marine structures are typically exposed to high chloride concentrations through direct exposure to sea water, which provides the primary conditions required for reinforcement...
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| Format: | Thesis |
| Language: | English |
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Department of Civil Engineering
2015
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| _version_ | 1867613284357636096 |
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| access_status_str | Open Access |
| author | Golden, Gavin |
| author2 | Alexander, Mark Gavin |
| author_browse | Alexander, Mark Gavin Golden, Gavin |
| author_facet | Alexander, Mark Gavin Golden, Gavin |
| author_sort | Golden, Gavin |
| collection | Thesis |
| description | Preventing chloride-induced reinforcement corrosion in marine concrete structures remains a concern for structural engineers. Marine structures are typically exposed to high chloride concentrations through direct exposure to sea water, which provides the primary conditions required for reinforcement corrosion. The progress of corrosion can be controlled through anodic, cathodic or resistivity processes. However, high chloride concentrations tend to prevent anodic control from governing the corrosion rate, while direct exposure to moisture generally prevents resistivity control. Consequently, cathodic control remains an important process in the marine environment to restrict the progress of corrosion. The primary cathodic reaction in reinforcement corrosion is the reduction of oxygen, and as a result the availability of oxygen is a key factor when considering reinforcement corrosion in the marine tidal zone. The corrosion rate may be effectively reduced if the drying time of the concrete during tidal cycles is sufficiently short, thereby reducing the oxygen supply at the level of the embedded steel. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/13654 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:33:41.762Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2015 |
| publishDateRange | 2015 |
| publishDateSort | 2015 |
| publisher | Department of Civil Engineering |
| publisherStr | Department of Civil Engineering |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/13654 The effect of cyclic wetting and drying on the corrosion rate of steel in reinforced concrete Golden, Gavin Alexander, Mark Gavin Beushausen, Hans-Dieter Civil Engineering Preventing chloride-induced reinforcement corrosion in marine concrete structures remains a concern for structural engineers. Marine structures are typically exposed to high chloride concentrations through direct exposure to sea water, which provides the primary conditions required for reinforcement corrosion. The progress of corrosion can be controlled through anodic, cathodic or resistivity processes. However, high chloride concentrations tend to prevent anodic control from governing the corrosion rate, while direct exposure to moisture generally prevents resistivity control. Consequently, cathodic control remains an important process in the marine environment to restrict the progress of corrosion. The primary cathodic reaction in reinforcement corrosion is the reduction of oxygen, and as a result the availability of oxygen is a key factor when considering reinforcement corrosion in the marine tidal zone. The corrosion rate may be effectively reduced if the drying time of the concrete during tidal cycles is sufficiently short, thereby reducing the oxygen supply at the level of the embedded steel. 2015-08-10T06:14:27Z 2015-08-10T06:14:27Z 2015 Master Thesis Masters MSc (Eng) http://hdl.handle.net/11427/13654 eng application/pdf Department of Civil Engineering Faculty of Engineering and the Built Environment University of Cape Town |
| spellingShingle | Civil Engineering Golden, Gavin The effect of cyclic wetting and drying on the corrosion rate of steel in reinforced concrete |
| thesis_degree_str | Master's |
| title | The effect of cyclic wetting and drying on the corrosion rate of steel in reinforced concrete |
| title_full | The effect of cyclic wetting and drying on the corrosion rate of steel in reinforced concrete |
| title_fullStr | The effect of cyclic wetting and drying on the corrosion rate of steel in reinforced concrete |
| title_full_unstemmed | The effect of cyclic wetting and drying on the corrosion rate of steel in reinforced concrete |
| title_short | The effect of cyclic wetting and drying on the corrosion rate of steel in reinforced concrete |
| title_sort | effect of cyclic wetting and drying on the corrosion rate of steel in reinforced concrete |
| topic | Civil Engineering |
| url | http://hdl.handle.net/11427/13654 |
| work_keys_str_mv | AT goldengavin theeffectofcyclicwettinganddryingonthecorrosionrateofsteelinreinforcedconcrete AT goldengavin effectofcyclicwettinganddryingonthecorrosionrateofsteelinreinforcedconcrete |