A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Response of protective current to environmental conditions during sacrificial anode concrete repair treatments
This work examines the current response of installed "hybrid" (combined impressed current and sacrificial) anodes to changes in environmental conditions and investigates the effect of this "responsive behavior" on anode life span. The behavior reported is also discussed in terms of its correlation with the two reported models regarding the criteria for steel protection in concrete. The study showed that current passed by the installed anode was responsive to changes in concrete temperature, moisture, and chloride content during both the impressed current and galvanic phases of the hybrid treatment. This meant that anode life was conserved in benign conditions and shortened when the concrete environment was aggressive. It was also seen that a high current density impressed current treatment "activated" the installed anode, allowing it to pass a much higher current during the galvanic phase of the treatment The data collectedfits better with the acidification/pit realkalization modelfor corrosion monitoring of steel in atmospheric concrete, rather than the pitting potential/repassivation potential model usedfrequently in the industry.
Response of protective current to environmental conditions during sacrificial anode concrete repair treatments
This work examines the current response of installed "hybrid" (combined impressed current and sacrificial) anodes to changes in environmental conditions and investigates the effect of this "responsive behavior" on anode life span. The behavior reported is also discussed in terms of its correlation with the two reported models regarding the criteria for steel protection in concrete. The study showed that current passed by the installed anode was responsive to changes in concrete temperature, moisture, and chloride content during both the impressed current and galvanic phases of the hybrid treatment. This meant that anode life was conserved in benign conditions and shortened when the concrete environment was aggressive. It was also seen that a high current density impressed current treatment "activated" the installed anode, allowing it to pass a much higher current during the galvanic phase of the treatment The data collectedfits better with the acidification/pit realkalization modelfor corrosion monitoring of steel in atmospheric concrete, rather than the pitting potential/repassivation potential model usedfrequently in the industry.
Response of protective current to environmental conditions during sacrificial anode concrete repair treatments
Die Reaktion des Schutzstromes auf die Umgebungsbedingungen während der Reparatur des durch eine Opferanode geschützten Betons
Holmes, S. (author) / Roberts, A. (author) / Glass, G. (author) / Robins, P. (author) / Wilcox, G. (author)
Corrosion, Houston ; 67 ; 105005/1-105005/8
2011
8 Seiten, 12 Bilder, 1 Tabelle, 12 Quellen
Article (Journal)
English
| British Library Online Contents | 2011
Concrete embedded sacrificial anode structure and protective shell and preparation method thereof
| European Patent Office | 2023
| British Library Online Contents | 2018