| efflorescence |
A white crystalline deposit of salts on the concrete surface.
출처: www.stencilsystems.com/glossary.html
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| efflorescence |
deposition of salts on surface of concrete resulting from chemical impurities in sand, aggregate or other contaminants in concrete mix. May also result from water-borne minerals or impurities deposited if water leeches through concrete pores then dries on surface.
출처: www.floorepoxy.com/application_guide/concrete_epox...
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