Active protection of fiber-reinforced polymer-wrapped reinforced concrete structures against corrosion
Large numbers of reinforced concrete (RC) structures that have been damaged from corrosion of steel reinforcements are rehabilitated with fiber-reinforced polymer (FRP) composites. This paper investigates active protection of the steel embedded in concrete that is treated with surface-bonded carbon...
| Main Authors: | , , |
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| Format: | Journal Article |
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NACE International
2011
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| Online Access: | http://hdl.handle.net/20.500.11937/45772 |
| _version_ | 1848757378016608256 |
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| author | Gadve, S. Mukherjee, Abhijit Malhotra, S. |
| author_facet | Gadve, S. Mukherjee, Abhijit Malhotra, S. |
| author_sort | Gadve, S. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Large numbers of reinforced concrete (RC) structures that have been damaged from corrosion of steel reinforcements are rehabilitated with fiber-reinforced polymer (FRP) composites. This paper investigates active protection of the steel embedded in concrete that is treated with surface-bonded carbon FRP. The electrically conductive carbon fiber is used as an anode while the reinforcing bar is used as a cathode. Concrete cylinder specimens with embedded steel bars are immersed in salt water, and anodic current is passed through the reinforcement to initiate cracking in concrete as a result of accelerated corrosion of steel. Carbon FRP sheets have been bonded adhesively to the cylinders. The adhesive has been modified to impart electrical conductivity. Specimens were exposed to a highly corrosive environment for a specified time. Pullout strength, mass loss, potentiodynamic scans, and the half-cell potential of steel are reported as metrics of performance of the samples. The proposed technique has been very effective in retarding the corrosion of steel. |
| first_indexed | 2025-11-14T09:27:08Z |
| format | Journal Article |
| id | curtin-20.500.11937-45772 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:27:08Z |
| publishDate | 2011 |
| publisher | NACE International |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-457722017-09-13T15:59:40Z Active protection of fiber-reinforced polymer-wrapped reinforced concrete structures against corrosion Gadve, S. Mukherjee, Abhijit Malhotra, S. corrosion anodic current reinforced concrete fiberreinforcedpolymer active protection pullout strength Large numbers of reinforced concrete (RC) structures that have been damaged from corrosion of steel reinforcements are rehabilitated with fiber-reinforced polymer (FRP) composites. This paper investigates active protection of the steel embedded in concrete that is treated with surface-bonded carbon FRP. The electrically conductive carbon fiber is used as an anode while the reinforcing bar is used as a cathode. Concrete cylinder specimens with embedded steel bars are immersed in salt water, and anodic current is passed through the reinforcement to initiate cracking in concrete as a result of accelerated corrosion of steel. Carbon FRP sheets have been bonded adhesively to the cylinders. The adhesive has been modified to impart electrical conductivity. Specimens were exposed to a highly corrosive environment for a specified time. Pullout strength, mass loss, potentiodynamic scans, and the half-cell potential of steel are reported as metrics of performance of the samples. The proposed technique has been very effective in retarding the corrosion of steel. 2011 Journal Article http://hdl.handle.net/20.500.11937/45772 10.5006/1.3549564 NACE International restricted |
| spellingShingle | corrosion anodic current reinforced concrete fiberreinforcedpolymer active protection pullout strength Gadve, S. Mukherjee, Abhijit Malhotra, S. Active protection of fiber-reinforced polymer-wrapped reinforced concrete structures against corrosion |
| title | Active protection of fiber-reinforced polymer-wrapped reinforced concrete structures against corrosion |
| title_full | Active protection of fiber-reinforced polymer-wrapped reinforced concrete structures against corrosion |
| title_fullStr | Active protection of fiber-reinforced polymer-wrapped reinforced concrete structures against corrosion |
| title_full_unstemmed | Active protection of fiber-reinforced polymer-wrapped reinforced concrete structures against corrosion |
| title_short | Active protection of fiber-reinforced polymer-wrapped reinforced concrete structures against corrosion |
| title_sort | active protection of fiber-reinforced polymer-wrapped reinforced concrete structures against corrosion |
| topic | corrosion anodic current reinforced concrete fiberreinforcedpolymer active protection pullout strength |
| url | http://hdl.handle.net/20.500.11937/45772 |