Causes, solutions and preventive measures of sand formation on cement mortar wall

In recent years, retro industrial style has prevailed, and industrial style decoration has become a trend regardless of residence, office or shop. Under this trend, cement wall has become the core element of industrial wind. However, sand formation on cement mortar wall is a common problem. In this paper, the causes and solutions of sand formation on cement mortar walls will be discussed in depth to help everyone better understand this problem.

cause analysis

There are five main reasons for sand formation on cement mortar walls: excessive water-cement ratio, unreasonable gradation of crushed stones, excessive vibration during construction, insufficient maintenance and inadequate control of calendering time. Understanding these reasons will help us to prevent and solve problems better.

solution

We can adopt different solutions according to different situations. For a small area of sanding area, pure cement suspension material can be used to cover the surface; For large area but not serious sand, it is suggested to use professional wall treatment agent, which can solve the problem quickly and effectively; If the sanding area is large and serious, it may be necessary to remove the original surface layer and replace it with a new surface layer.

♂? preventive measure

In the construction process, preventive measures are equally important. Measures such as controlling water cement ratio, reasonably grading crushed stones, avoiding excessive vibration, timely curing and mastering calendering time can be taken. , to prevent the problem of sand on the cement mortar wall.