concrete corrosion Topic

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

Pedestrian Bridge as Clarifying Example of FRP-RC/PC Design

Publication: Special Publication
Date: 10/1/2019

Concrete Beams with Fully Corroded Steel Repaired with CFRP Laminates

Publication: Special Publication
Date: 10/1/2019

Doha New Orbital Highway Contract 3

Publication: Concrete International
Date: 7/1/2019

From Cradle to Maturity

Publication: Concrete International
Date: 4/1/2019

Assessing Corrosion of Reinforcing Steel

Publication: Concrete International
Date: 2/1/2019

Long-Term Durability of GFRP Internal Reinforcement in Concrete Structures

Publication: Special Publication
Date: 2/1/2019

Advantages of Prepreg FRP Systems for Extending Service Life of Concrete Members in Wet Environments

Publication: Special Publication
Date: 11/1/2018

Novel Composites Jacket for Repair of Concrete Columns

Publication: Special Publication
Date: 11/1/2018

Influence of the positioning of CFRP laminates for improving punching shear capacity of column-to-slab connections

Publication: Special Publication
Date: 11/1/2018

Durability of GFRP Reinforcement in Seawater Concrete

Publication: Special Publication
Date: 11/1/2018

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