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Efflorescence in bricks
Short answer
Efflorescence is a whitish deposit of soluble salts on brick surfaces due to water evaporation, spoiling appearance and potentially causing spalling.
What is efflorescence in brick?
Efflorescence is the whitish crystalline deposit of soluble salts (sulphates of sodium, calcium, magnesium) that appears on the surface of bricks and brick walls when water evaporates. It spoils the appearance and can cause spalling.
✓ Answer checked by Claude Opus 5.5 (high effort)
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