Wall construction | how to repair the cracks on the wall? Different reasons and different methods

Core tip: how to repair the cracks on the wall? The cracks on the wall of the new house have become a common problem There are many reasons The key is to find out the symptoms so as to cure them The first reason is that for masonry structure, the temperature cracks between the floor and the masonry are mutual constraints If the external temperature changes, the temperature deformation between the floor and the masonry is not coordinated, the masonry will produce temperature stress Masonry itself has a limit value of tensile and shear strength When the temperature stress exceeds this limit, the masonry will produce temperature cracks Solution: This is the most common house crack, which mainly affects the outside of the house Which is the price of Dajin diatom mud Recommended brief introduction: which is the price of Dajin diatom mud? How to buy genuine diatom mud? Guangdong diatom mud agent suggests placing a basin of cold water in the air conditioning room, so that the diatom mud wall can breathe effectively The feature of the breathing wall is obvious When the indoor air is dry, the diatom mud wall will release the absorbed water quickly Put it out to help regulate the indoor dry humidity It is suggested to place a basin of cold water in the air conditioning room, so that the wall of diatom mud can breathe effectively The feature of the wall that can breathe is obvious When the indoor air is relatively dry, the wall of diatom mud will absorb the water Paint Home News: how to repair the cracks on the wall? The cracks on the wall of new houses have become a common problem There are many reasons The key is to find out the symptoms so as to cure them The first reason is that for masonry structure, the temperature cracks between the floor and the masonry are mutual constraints If the external temperature changes, the temperature deformation between the floor and the masonry is not coordinated, the masonry will produce temperature stress Masonry itself has a limit value of tensile and shear strength When the temperature stress exceeds this limit, the masonry will produce temperature cracks Solution: This is the most common crack in the house, which mainly affects the appearance of the house Some remedial measures can be taken properly: stick non-woven fabric and PVC mesh cloth at the crack, and then paint to repair Reason 2 if the cracks of emulsion paint are cracks on the surface of the paint film, the cracks can be polished off with fine sandpaper, and then re coated with emulsion paint The third reason is that the expansion joint between the structural wall and the brick wall will extend to the wall surface, and this kind of crack will also show as the crack formed by emulsion paint In case of this kind of crack, we should find professional building structural personnel and take corresponding measures according to the actual situation Solution: this kind of crack is the most complex and difficult to repair Generally, when repairing, it is necessary to remove all the base layer, clean the crack, and then fill the crack with epoxy resin injection until the crack is filled The surface of the gap is pasted with carbon fiber anti crack cloth for reinforcement After all this is done, the putty can be applied for emulsion paint repair The reason for the crack in the fourth cement coating is that the proportion of cement and yellow sand is not right when the wall is powdered Many hydraulic enterprises reduce the amount of cement, resulting in the crack in the cement mortar coating and the crack in the emulsion paint Solution: to repair the cracks, just remove the putty layer, expose the cracks of the cement paint layer, and then directly use the carbon fiber anti crack cloth to post If there is a large area of hollowing in the plastering layer, the original plastering layer shall be knocked out, and the plastering layer of cement mortar shall be made again After leveling, paint or paste wallpaper according to the normal process However, after such treatment, the cost will be relatively increased, and the owner can choose the repair method according to his own economic ability If there is only a large area of cracking, no sanding, hollowing or falling off, you can paste dacron cloth on the wall, and then paint or paste wallpaper according to the normal process The relatively low cost way is to nail a layer of gypsum board directly on the original wall surface, which requires the use of environmental protection milky white glue and steel nails at the same time The reason for the cracking of the putty layer is that the cracking is the slightest, which is often caused by too thick or too thin putty layer Solution: when repairing, directly paste the bandage made of anti cracking fiberglass mesh or log pulp, and then apply putty How to repair the cracks on the wall? The above is the owner's experience for you to sort out, hoping to help you Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,