Q: I have noticed a white powder around the edges of my concrete walkway. Should I be concerned? A: The white powder is the result of efflorescence, which occurs when a soluble salt, such as earth, ...
Q. Efflorescence is mysterious to many. Does it ever stop forming? My brick three-family is about 120 years old and has an exposed brick wall in the back stairwell. I have lived in the house for 45 ...
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