【Waterproofing FAQs】#9 What is Efflorescence? In upscale residences, it's common to discover efflorescence on surfaces like wall exteriors, courtyard steps, and flower beds after occupancy. Not only does this affect aesthetics, but it also diminishes the overall value of the building. What's the cause behind its formation? Is it related to waterproofing?
Answer: (1) The main cause of efflorescence formation is the "incomplete hydration" of the cement mortar layer within the primary surface material. When water infiltrates into the material, the incomplete hydration of the cement mortar results in the transport of free calcium ions by water vapor.
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