Embedded galvanic anodes reduce the corrosion activity of the reinforcing steel in the vicinity of the installed anode. Anodes are installed in areas of the concrete where there is a high likelihood of corrosion occurring or recurring. Type 1 anodes are installed to provide improved protection of uncoated reinforcing steel in the repair area and in adjacent chloride-contaminated or carbonated concrete surrounding the repair area. Type 2 anodes are used in sound chloride-contaminated or carbonated concrete to mitigate corrosion of the reinforcing steel and delay the onset of delamination or spalling of the concrete.
Author: ACI Committee E706
Publication Year: 2023
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