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In chemistry, efflorescence (which roughly means "the flowering" in French) is the migration of a salt to the surface of a porous material, where it forms a coating. The essential process involves the dissolving of an internally held salt in water or occasionally, in another solvent.
It is the result of oils or other liquids penetrating deeply into the capillary channels and depositing material that is effectively impossible to remove without destroying the stone. Salt Attack occurs when salts dissolved in water are carried into the stone. The two commonest effects are efflorescence and spalling.
An affected gastropod shell (a juvenile Agathistoma) from a museum collection. Byne's disease, more accurately known as Bynesian decay, is a peculiar and permanently damaging condition resulting from an ongoing chemical reaction which often attacks mollusk shells and other calcareous specimens that are in storage or on display for long periods of time.
Efflorescence: White, powdery residue found on basement walls near the floor. Mold : Fungi that usually grow in damp, dark areas and can cause respiratory problems after prolonged exposure. Foundation crack injections
He also suggests using an air purifier with HEPA filter “to remove allergens and irritants,” and keep your bedroom as dust-free as possible. Control your cough.
Example of secondary efflorescence in parking garage exposed to diluted road salt from vehicles entering the garage during winter. When water flows through cracks present in concrete, water may dissolve various minerals present in the hardened cement paste or in the aggregates, if the solution is unsaturated with respect to them.
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