$2024$ Spring CM $($C$)1112$ for Stephanie Heumann

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Question $11$

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Points out of $1\mathrm{.}00$

P Flag question

Efflorescence that appears on the surface of a wall of brick, stone, or concrete masonry can be caused by:

Select one:

a$.$ too little water used in the mortar mix.

b$.$ mortar joints that are too thick.

c$.$ failure to use masonry ties.

d$.$ water$-$soluble salts present in the mortar, brick, stone, or CMU.

e$.$ excessive quantities of iron in the CMU, stone, or brick.

Time left $0$:$13$:$30$