Protective Coatings

Protective Coatings

Various external hostile environmental substances, such as, water, carbon dioxide, oxygen, chlorides and sulphides are transported from the atmosphere into the concrete and attack steel and concrete in different mechanisms causing premature deterioration of reinforced concrete, challenging its durability and resulting in premature failure of the structures. The entry of the harmful agents can be restricted or avoided by providing the barrier surface coatings on the concrete. Thus, conservation of structural integrity can be achieved during its service life.

Deterioration Mechanism:

There are various mechanisms of concrete deterioration. But the present discussion on the topic of protective coating focuses only on the factors influenced by the atmospheric exposure of reinforced concrete. Among them, the very common ones are carbonation, chloride attack and attack by sulphides.

Know your variables:

A great variety of concrete coatings are available but identifying the right coating for a situation requires detailed knowledge of the environmental conditions your structure will face and the chemical expertise that is available. Applying coatings so that they adhere well is better understood, but still requires careful and thorough surface preparation that may vary according to regional conditions.

Knowledge, experience and help from coating experts at Venus Star will help you in such decisions and will play a critical role in ensuring the success of protective coating for concrete structures.