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Q: White deposits which sometimes gather on the surface of the brick masonry is known as _______
  • A. deliquescence
  • B. efflorescence
  • C. scaling
  • D. brick corrosion
Correct Answer: Option B - These causes efflorescence– When bricks come in contact with moisture, water is absorbed and alkaline crystalline on during the moisture evaporates, leaving behind grey or white deposits on the brick surface which spoil the appearance. This phenomenon is called as efflorescence.
B. These causes efflorescence– When bricks come in contact with moisture, water is absorbed and alkaline crystalline on during the moisture evaporates, leaving behind grey or white deposits on the brick surface which spoil the appearance. This phenomenon is called as efflorescence.

Explanations:

These causes efflorescence– When bricks come in contact with moisture, water is absorbed and alkaline crystalline on during the moisture evaporates, leaving behind grey or white deposits on the brick surface which spoil the appearance. This phenomenon is called as efflorescence.