The wall covers the largest area in the whole home decoration. If the method used in the decoration process is improper, it is likely that the wall will be hollow in the later period. The hollow wall is not only visually uncomfortable, but from a deeper perspective, it will also bring hidden dangers to the living environment. So, what causes the walls to bulge? What should we do if we encounter a hollow wall? The following editor will lead you to understand the reasons for the hollow wall and the related knowledge of repair .
Causes and repairs of hollow walls -causes
Before we deal with the hollow wall, we can find the key to the problem and solve the problem in a targeted way. There are several reasons for not being hollow on the wall:
1. Reasons for the empty wall of the rough room
During the construction process, due to the low structural and adhesion of the wall's stucco layer, the wall appears hollow and cracked, which is often referred to as "sand wall".
2. The primary treatment is not clean
During the construction process, the shaving maintenance is insufficient or the water is not wetted in advance, so that the plaster loses too much water, which causes the base layer and the plaster layer to not stick together, resulting in emptying.
3. The flatness of the base surface
The flatness does not meet the construction requirements, or the verticality exceeds the standard, which will cause uneven plastering layer, resulting in surface hollowing phenomenon.
4. Improper layered construction
For the sake of convenience, some construction teams have improper delamination of the base layer, middle layer and surface layer during the plastering process, the thickness is uneven, and the hollowing phenomenon occurs after shrinking.
5. Construction environment
The plastering environment is well ventilated, but negligence of maintenance leads to excessive mortar water loss and hollowing.
8. The surface of the wall layer is smooth
If the wall surface is too smooth, it will also lead to poor bonding, and when a large area is hit on the bottom surface, no separation joint is designed, resulting in irregular shrinkage and other phenomena
The reason and repair of hollow wall-repair
1. If a similar situation is found during the inspection, the inspector can be asked to mark the location of the hollow drum and cracks on the wall. In addition, then re-make a layer of white cement on the original damaged wall, the purpose is to enhance the overall structure of the wall, and apply patch treatment to the hollow part of the wall. When putting environmental protection putty, add some glue to facilitate the increase Structural force and adhesion of the wall.
2. You can also use perfusion repair to solve the empty drum problem. For example, if the AB resin grouting is used to repair the cracks, it is directly injected into the hollow drum with high-strength adhesive, and then the hollow drum is filled with full position. The method of grouting to repair the hollow drum is fast, does not damage the base layer, and will not affect the owner's use during the construction process, which is a more convenient way.
Conclusion of the article: The above has analyzed the reasons for wall hollowing and repair techniques for everyone. I believe you have more understanding of it. There are many reasons for hollowing, and you must take the correct method to ensure more protection. Finally, remind friends, as far as possible, please ask a professional construction team to carry out maintenance.
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The reason and repair of hollow wall
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