1, pressure grouting method:
The air compressor pours the adhesive into the cracks in the brick wall and bonds the cracked walls together again.
2, external force repair method:
Open the original gap, repair it with elastic putty, or stick it together with dacron cloth.
3, linen reinforcement
Buy some linen for paint in the market, stick the linen on the wall with white glue, and then coat it with cement paint after drying. This can not only ensure that the wall does not appear cracks, but also play a role in strengthening the wall.
4. Remove the insulation board
Remove the insulation board from the wall, or remove the cement from the wall, put a layer of gypsum board outside and finally make latex paint on it. However, this method is expensive and difficult.
5. For large-area cracks, make the cracked wall foundation into a "U" shape, repair the base surface, and finally hang the steel mesh.
Extended data:
Causes of wall cracking:
1, temperature crack:
Generally speaking, the building structure will be deformed due to the change of environmental temperature, and it is easy to crack after thermal expansion and cold contraction. In this case, cracks are usually located at the junction of different materials, such as ring beams, lintels and walls.
2, settlement cracks:
The second cause of wall cracks is foundation settlement. If the foundation settlement is uneven, cracks are easy to appear.
3, the wall structure cracking:
Cracks in the structural layer of the wall itself will also lead to wrinkles on the wall, mostly because there are cracks in the original wall itself, and no corresponding measures have been taken in the later decoration process.
4, putty layer cracking:
If the putty layer cracks, it is easy to cause the surface layer to crack.
5, plaster layer cracking:
Cracking of plastering layer is generally caused by shrinkage of cement mortar or improper materials or construction technology.
6, paint layer cracking:
This situation is generally caused by material reasons or improper construction technology.