AI Overview The white staining visible on the concrete is

来源: 于 2025-12-02 02:45:08 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次
 
 
The white staining visible on the concrete is a common occurrence known as efflorescence. 
 
  • Efflorescence is a crystalline deposit of salts that forms on the surface of concrete. 
  • It occurs when water moves through the concrete and brings dissolved salts to the surface, where the water evaporates and leaves the salt behind. 
  • The process involves a chemical reaction between the water, acid, inorganic salts, and minerals already present in the concrete, such as calcium hydroxide. 
  • It is a cosmetic issue and generally does not affect the structural integrity of the concrete.