Which of the following statements is true for efflorescence?
A) It is a deposit of acids on the surface of a masonry wall.
B) It can be prevented by using calcium chloride to accelerate the mortar setting time.
C) It appears as a white stain on brick walls.
D) It only occurs on walls that do not contain moisture or soluble salts.

Question

Quizplus · Accepted Answer

Efflorescence appears as a white stain on brick walls due to the deposition of salt crystals on the surface. It is caused by the movement of moisture through the porous brick and mortar, which dissolves and carries these salts to the surface.

Which of the Following Statements Is True for Efflorescence