corrosion Topic

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 CORROSION

The Challenges of Achieving Compatibility in Concrete Repair

Publication: Concrete International
Date: 12/1/2017

Corrosion Resistance of Concrete Incorporating Supplementary Cementing Materials in a Marine Environment

Publication: Special Publication
Date: 8/1/2017

Environmental Benefits of Using Glass Powder in Manhole Production

Publication: Special Publication
Date: 8/1/2017

Factors controlling carbonation resistance of alkali-activated materials

Publication: Special Publication
Date: 8/1/2017

Towards a Service Life Prediction System of Concrete Structures Based on a Neural-Computing Approach

Publication: Special Publication
Date: 8/1/2017

GGBS Cements Activated by Chloride:Hydration and Corrosion Potential

Publication: Special Publication
Date: 8/1/2017

The Franklin Avenue Bridge

Publication: Concrete International
Date: 8/1/2017

CRC 94: Evaluation of Chloride Limits for Reinforced Concrete Phase A

Publication: CRC
Date: 7/1/2017

The Franklin Avenue Bridge

Publication: Concrete International
Date: 6/1/2017

Reduction of Water Inflow by Controlling Cracks in FRC Tunnel Segments

Publication: Special Publication
Date: 6/1/2017

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