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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.

Practice oriented papers and articles ON CONCRETE CORROSION

The Heart of Innovation in SPARK, Saudi Arabia

Publication: Concrete International
Date: 6/1/2023

Selecting Exposure Classes and Requirements for Durability

Publication: Concrete International
Date: 5/1/2023

Concrete Q & A: Using Portland-Limestone Cement in Concrete Repair

Publication: Concrete International
Date: 4/1/2023

Long-Term and Corrosion Effects on the Punching Shear Resistance of RC Flat Slabs Subjected to Sudden Column Loss

Publication: Special Publication
Date: 4/1/2023

Tech Spotlight: An Economical Solution for Strengthening Concrete Columns

Publication: Concrete International
Date: 2/1/2023

GFRP-RC Seawalls as a Means of Coastal Fortification and Extended Service Life

Publication: Concrete International
Date: 11/1/2022

Assessment of Shear Strength Design Models for Fiber-Reinforced Concrete Deep Beams Reinforced with Steel or FRP Bars

Publication: Special Publication
Date: 10/1/2022

Literature Review on External Carbon Fiber-Reinforced Polymers (CFRP) Reinforcements for Concrete Bridges

Publication: Special Publication
Date: 10/1/2022

Bond Study of Corrosion-Free Reinforcement Embedded in Eco-Friendly Concrete

Publication: Special Publication
Date: 10/1/2022

Preliminary Experimental Results of the Bond between GFRP Bars and Concrete

Publication: Special Publication
Date: 10/1/2022

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