What are the causes of cracks in the newly renovated wall?

After the wall of most new houses is rebuilt, cracks will appear in the wall, which will affect the overall beauty. Then I'll tell you the reasons why the newly renovated walls are all cracks and the treatment methods for the newly renovated walls are all cracks.

1, cracks caused by foundation

When the temperature of the surface soil drops below 0℃, the top begins to freeze, and the bottom of water rises due to capillary action. Ice crystals formed and expanded in volume, which led to the upward uplift of soil.

2. Cracks caused by materials

Due to the measures taken to protect the country's cultivated land, clay solid bricks and clay hollow bricks are generally prohibited and restricted, and various blocks have been widely used. However, cracks and leakage are common in cement block walls. On the external wall, the expansion and contraction of blocks are particularly obvious. When the shrinkage caused by drying is large, the wall is easy to crack.

3. Cracks caused by construction reasons

Building quality is just another important aspect of wall cracks. In the process of construction, masonry workers have low technical level and low quality consciousness, and the contractor secretly reduces materials, which will also cause cracks in the wall.

4. Cracks caused by design reasons

The main manifestations are: unreasonable foundation design or insufficient drilling, resulting in uneven settlement and cracking; Due to financial problems, there is no design insulation layer on the roof, which leads to the temperature difference between the roof structure layer and the wall and the temperature stress.

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? 1. If it is because of the temperature, the renovated wall will crack, which will seriously affect the overall aesthetic effect. At this time, non-woven fabrics and PVC mesh cloth can be attached to the cracks. Next, repair the brush with paint.

? 2. If the paint film on the wall is damaged, you can use sandpaper to polish the paint film. After the latex paint is polished, you can brush it again.

? 3. The reason why cracks appear on the wall is because if cracks appear in the internal structure of the wall, the cracks will appear on the wall after extension. At this time, the handling will be more problematic and should be handled by professionals.

? 4. If there are cracks in the cement mortar layer, only the surface of the putty layer can be removed. When the cracks in cement mortar layer are mentioned, carbon fiber scratch-proof cloth can be directly placed at the cracks.