Often the occurrence of cracks in the foundation of the house is an inevitable event. But you do not need to panic. It should be carefully understood that it caused this process, and quickly solve this problem. On how to close the crack in the foundation, and it will be discussed in this article.
Content
Causes of cracks and their main types
The most common causes of crack appearance include:
- poor-quality preparation of soil under the foundation;
- savings on the acquisition of materials for construction;
- natural soil shifts;
- non-compliance with the technology of building a house;
- construction of a new object.
There are two main types of cracks on the surface of the foundation:
- horizontal;
- vertical.
Horizontal cracks do not represent such a danger. They may arise for various reasons. The main ones are:
- exposure to low temperatures (a drying of concrete occurs);
- increased pressure from a wet soil.
Long cracks and horizontal faults with bulges that are available on the outer wall of the house indicate a possible displacement of the foundation or a pressure rendered on the bearing walls. To determine the specifics of faults, it is necessary to use the level. In the presence of bulge more than 1 cm or the formation of the crest on the edge of the wall, it is necessary to carry out serious repairs of the base.
What to do when the crack in the foundation is vertical? Such faults in the walls do not alienate anything good. If only one crack at the bottom of the building, you need to determine its parameters. If there is a break with smooth edges and a small thickness (approximately in the hair), the crack repair in the foundation will not be much difficult.
A more complex work is to have the vertical edges of the fault - uneven, and the slit is expanding in any direction. It should also be taken into account that the crack can be located underground. In this case, you need to dig a plot near it.
Fault Clipping Technology
Depending on the complexity of work for sealing cracks in the foundation, various materials will be required. When the faults are small, their closeing occurs with the help of a conventional repair mixture or sealant. More complex areas are processed by special materials. These include epoxy resin and fast-hardening cement.
In most cases, climbing faults in the foundation provides for the choice of one of two options:
- pouring into it concrete solution;
- cracker treatment with epoxy resin.
Using concrete when eliminating slots
Elimination of cracks in the foundation begins with its preparation. Using chisel, old concrete crumbs are removed from the break. If there is a small crack, it should be expanded at the bottom. With the help of the construction workshop, the result is filled with a solution. After that, the entire processed surface is smoothed and levels.
This method is used in the case when we are too large damage in concrete structures. The work begins with clenching the chisel of the crack surface in the foundation. Clearing the spill, it is carefully washing with water under pressure. While the gap dries, you should cook the solution.
Cement material is sold in the finished form. It needs to be easy to dilute with water and mix the mixture before the formation of pasta. It should not be prepared a large amount of solution, because it quickly solidifies. The preparation of the solution can occur from an ordinary portland cement with the addition of sand and water.
Filling faults in the foundation is carried out in such a way that the concrete mixture performed above the surface. When concrete becomes collapsed, with the help of a trowel, it is thoroughly smoothed. After filling cracks in the foundation, the entire surface is covered with a dense cloth and left for several days. Moreover, it is necessary to maintain a wet state of the decoration. To do this, lighter wetting fabric.
Elimination of epoxy resin defects
The second method of climbing cracks in the foundation of the house involves the use of epoxy resin. The maximum efficiency of its use is achieved to close the small slots (up to 5 mm) in the monolithic concrete.
The seal process itself consists of such main stages:
- removal of old concrete crumbs;
- drying of the surface;
- application of epoxy resin.
Using the metal brush, the entire area with defects and the surface near it is preparing. For complete cleaning from concrete crumb, the crack is blown away. The inner part of the fault is dried with a construction hairdryer.
The components of the design elements with epoxy resin are nozzle and liquid resin, which is placed in the tube. Installation of nozzles in a spill occurs with an interval of 30 cm. The first nozzle is inserted into 30 cm from the surface of the Earth. Epoxy resin is mixed with hardener. The prepared solution is applied to the lower part of all the nozzles. They are glued to the base of the gap. Resin must harden.
After that, it is close to the epoxy resin of the entire damaged area. The mixture is rubbed and around fault. After setting the solution, the liquid resin is injected into all nozzles, starting at the bottom. If there are cracks with a width of more than 3 mm, each nozzle is equipped with several tubes. After 5 days, when the epoxy resin fell completely, the nozzles can be cut down.
It is possible to reduce the likelihood of cracks in the foundation by conducting preventive measures. As you know, the main problem for the foundation is an excess of moisture. Therefore, it is necessary to constantly monitor the water accumulation near the house.
Clothing video in the foundation:
