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Title: ACI PRC-364.6-22: Concrete Removal in Repairs Involving Corroded Reinforcing Steel—TechNote

Author(s): ACI Committee 364

Publication: Technical Documents

Volume:

Issue:

Appears on pages(s): 3

Keywords:

DOI:

Date: 7/1/2022

Abstract:
The long-term performance of concrete repair intended to address corrosion of embedded reinforcing steel is influenced by the depth of repair and the condition of the substrate concrete surrounding the repair area. The extent of concrete removal should be adjusted in accordance with the degree and nature of distress affecting the member or structure, while taking into account the concrete condition, the structural design, and the applied loads. Keywords: carbonation; chloride content; concrete removal; corrosion; reinforcing steel; repair; ring anode effect; surface preparation; undercutting.