Answer:
Currently, the emergency grout sold by building materials stores is mainly used for basement leak detection projects. If it is used to fill large gaps in door and window frames, the following side effects will occur:
(1) The main component of this material is calcium chloride; when mixed with cement mortar, the high concentration of chloride ions will severely corrode the metal of the window frame, and will cause a “rust explosion,” resulting in the cracking of the cement mortar joints and loss of waterproofing effect.
(2) A thin layer of black or golden paint is applied on the window frame. The sulfuric copper contained within will react with calcium chloride to form a crystalline fluid of calcium sulfate. Therefore, a whitish limestone liquid will often flow from the walls near the window frame, which not only seriously affects the appearance of the interior decoration but also leads to residents mistaking it for a leak, causing considerable inconvenience.