Guide To Learn
What is Carbonation-induced Corrosion? Briefly, when calcium hydroxide in concrete combines with carbon dioxide from the air to generate calcium carbonate and lower the pH of the concrete, this process is known as carbonation-induced corrosion. Because of the compromised protective oxide layer on the embedded steel reinforcement caused by this lower pH, the structure may become weaker and […]
Concrete Repair Before getting into concrete repair, you should assess thoroughly the condition of concrete by visual inspection supplemented with other tests if necessary. A visual inspection of the structure, an assessment of corrosion activity, destructive and nondestructive testing, a review of laboratory results from chemical and petrographic analysis of concrete samples, a review of available test data, a review of […]
As the name implies, chloride-induced corrosion is a type of corrosion that occurs due to the existence of chloride ions so you can find it a lot in marine environments and structures where authorities apply de-icing salts to get rid of ice. Chloride-induced corrosion can hit parking structures, bridges, piers, and roads and so on. Authorities […]
When an area of steel is corroding under the influence of chloride contamination, steel is dissolving causing the formation of iron ‘ions’, tiny charged particles of iron. Simultaneously, electrons are released which flow along the bar and react at some point remote from the corrosion with both air and oxygen. Cathodic protection, which is discussed […]