What Is The Cause Of Water Marks On The Surface Of Granite Slabs?

After investigation and consultation with relevant professionals, Xiaobian found that there are always water marks on the surface of granite slabs. The main reason for this situation is the influence of cement mortar in the wet construction method. Because the composition of cement contains 1% to 2% sodium hydroxide. Due to its strong adsorption to moisture, when the ambient temperature is higher than 35 degrees in a humid atmosphere, a corrosive sodium carbonate solution is formed immediately. Crystal water often changes due to changes in temperature, but it is never scarce, which creates a phenomenon of wet marks.

The prevention method is mainly to strengthen the protection of granite slabs, so that the stone is waterproof, so as to block the contact between the moisture in the air and the internal materials of the stone or cement, and reduce the chemical reaction conditions; secondly, the cement construction should be avoided as much as possible. Attributes; it is also necessary to do a good job of joint filling and drainage works.

However, there is no effective way to deal with the existing wet marks. The main remedy is to use a resin injection method to deepen the color of the part where no wet marks appear, thereby adjusting the chromatic aberration between the two. Prevention and treatment of wet slab phenomenon of granite slabs.