RESULTS FOR CONCRETE CORROSION

Definition: deterioration of a material, usually a metal, that results from a chemical reaction with its environment.- ACI Concrete Terminology

Corrosion occurs when the protective layer in concrete steel reinforcement is destroyed. Steel in concrete is usually protected against corrosion by the high pH of the surrounding portland-cement paste. Cement paste has a minimum pH of 12.5, and steel will not corrode at that pH. If the pH is lowered (for example, to pH 10 or less), corrosion may occur if moisture, oxygen, and chloride ions are present. Chloride ions destroy the protective layer on the steel reinforcement, making it prone to corrosion. The corrosion product (rust) occupies a greater volume than the steel and exerts destructive stresses on the surrounding concrete.

Informational Resources News, Events & Engagements ACI Web Pages

Informational Resources on Concrete corrosion

STANDARDS, PRACTICES and MANUALS ON CONCRETE CORROSION

ACI CODE-562-21: Assessment, Repair, and Rehabilitation of Existing Concrete Structures - Code and Commentary

MNL-3(16) Guide to the Code for Assessment, Repair, and Rehabilitation of Existing Concrete Buildings

ACI PRC-222-19: Guide to Protection of Metals in Concrete Against Corrosion

ACI PRC-201.2-23: Durable Concrete—Guide

ACI CODE-365-24: Service Life Evaluation—Design Specification

ACI PRC-440.2-23: Design and Construction of Externally Bonded Fiber-Reinforced Polymer (FRP) Systems for Strengthening Concrete Structures—Guide

ACI PRC-362.3-26: Surface Treatments in Parking Structures: Elastomeric Waterproofing Membranes—TechNote

ACI PRC-423.8-21: Corrosion and Repair of Grouted Post-Tensioning Tendon Systems - Report

ACI PRC-225-25: Selection and Use of Hydraulic Cements—Guide

ACI PRC-439.4-25: Steel Reinforcement—Material Properties and U.S. Availability—Report

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JOURNAL Articles ON CONCRETE CORROSION

Bond Performance of Thermo-Mechanically Treated Steel Reinforcing Bar in Normal Strength Concrete Under Accelerated Corrosion (Prepublished)

Publication: Structural Journal
Date: 9/16/2026

Experimental Study of Corrosion-Induced Cracking in Reinforced Concrete Under Chloride Exposure (Prepublished)

Publication: Materials Journal
Date: 9/16/2026

Synergistic Inhibition of Polyethoxylated Sorbitan Monooleate and Benzoate on Chloride-Accelerated Deterioration of Reinforcing Bars Embedded in Mortars

Publication: Materials Journal
Date: 9/1/2026

Impact Resistance of Flexible Shed Tunnel with Corrosion Damage

Publication: Structural Journal
Date: 9/1/2026

Physics-Guided Bayesian Framework for Bond Strength Modeling with Explicit Aleatoric-Epistemic Uncertainty Quantification

Publication: Structural Journal
Date: 9/1/2026

Flexural Behavior of Concrete Beams Reinforced with Glass Fiber-Reinforced Polymer Bars Preconditioned in Marine Environments

Publication: Structural Journal
Date: 9/1/2026

Residual Flexural and Shear Capacity of Corroded Reinforced Concrete Beams

Publication: Structural Journal
Date: 9/1/2026

Alkalinity Dependence Analysis of Degradation of Glass Fiber-Reinforced Polymer Bars

Publication: Materials Journal
Date: 9/1/2026

Shear Strength of Non-Prestressed Slender Beams with Reinforcement Corrosion Damage (Prepublished)

Publication: Structural Journal
Date: 8/21/2026

Structural Behavior of Reinforced Concrete Beams under Coupled Effects of Loads and Corrosion

Publication: Structural Journal
Date: 7/1/2026

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Practice oriented papers and articles ON CONCRETE CORROSION

Saline Water Concrete: Corrosion Protection Strategy for Production Plants

Publication: Concrete International
Date: 10/1/2026

Tech Spotlight: Concrete Renewal in Motion

Publication: Concrete International
Date: 4/1/2026

Concrete Q&A: Practical Application of a “Critical Chloride Threshold” for Evaluating Corrosion in Existing Structures

Publication: Concrete International
Date: 4/1/2026

How concrete corrosion macrocells affect assessment and forecasting