The service life of the foundation of the house is from 50 to 100 years, and in principle is comparable with the operation life of the building. However, there are situations that the new walls of the house built on the old foundation, which loses strength over time. To protect the house from possible damage, should undertake a number of activities aimed at the reconstruction of the foundation. On the methods of the present process and discussed later.
- 1 Table of contents:
- 2 Reasons to carry out the reconstruction of the house foundation
- 3 Reconstruction of the house basement price, the analysis and characterization of damage
- 4 Technology reconstruction of the house with his own hands the foundation
- 5 How to repair the foundation of a building by means of piles
Table of contents:
- Reasons to carry out the reconstruction of the house foundation
- Reconstruction of the house basement price, the analysis and characterization of damage
- Technology reconstruction of the house with his own hands the foundation
- How to repair the foundation of a building by means of piles
Reasons to carry out the reconstruction of the house foundation
There are two main reasons why the foundation needs further repairs. First of them is the loss of soil, which is near the foundation strength. This process is a result of flooding, soil oversaturated with moisture and is its loss of bearing capacity. Since some soils under the influence of moisture to lose strength and integrity of the foundation, in such a case, broken.
There are situations where soil remains as strong, but washed out of the vicinity of the basics of the foundation. It turns out some degree of voids, this process is typical for sandy or loamy soil.
If in the ground there is limestone or marl, in large numbers, the foundation, in their locations, begins to sag. The first cause subsidence of the building is the presence of inclusions in the ground data, its destruction under the influence of natural acids, so voids that are formed due to the process, under the load of a building are filled with soil, and the house while sags.
The second reason, which leads to the necessity of the foundation reconstruction, is the mechanical destruction of the foundation, due to external factors such as humidity, temperature and a large load, etc. This usually occurs after more than fifty years since the foundation of everything.
Underground water, coming into contact with the iron structure used as a reinforcement foundation corrode. The main reason that the foundation already after a few years after its construction, in need of renovation, is the failure of the technology of its construction. The first mistake in the construction of foundations - improper conduct calculation of its depth. The second mistake is the desire of builders or owners of the house, save a little on building materials and build the foundation at a lesser depth than the calculations were made.
In addition, some materials that are not valid for the arrangement of the bases, often used in their construction. These include building materials in the form of sand-lime brick or cinder block.
To determine the cause of the destruction of the foundation and activities of its reconstruction, should undertake a number of preparatory works aimed at its renewal.
Reconstruction of the house basement price, the analysis and characterization of damage
For the independent exercise of the process should develop special equipment with which the work will be carried out. However, there is another option - an appeal to a specialized organization for the study of the processes of destruction of the foundation, through the analysis of the soil and the building itself. The price for such services, often exceeds the cost of the building itself, therefore cheaper - to carry out all the work yourself.
First of all it is necessary to conduct a visual inspection of the building, if it is attended by a crack, the more often this process is evidence of soil freezing in cold winter too, and then thawing it in the spring. In this situation, there should be only cosmetic repairs.
However, if the fracture is not only on the surface of the building, but also in the foundation, it will take a more serious repair. To clarify this fact, should examine the crack from beginning to end. Therefore, the appearance of cracks, set her mark by which you want to trace the nature of its development. If the crack is no longer increases, no maintenance, except for cosmetic, do not need to spend. Otherwise, you should look for another cause which leads to cracking of the walls of the house.
For the manufacture of simple beacon, which can mark the fracture, take a plaster solution was add thereto bit them cement and seal the crack. Note that after drying the composition it should hold fast on the surface. The recommended thickness of applying a plaster solution 0.3-0.6 cm. Each of the markers must be placed in both the upper and lower parts of the fracture. Each fracture should be two or more markers.
For the application of the marker using a small spatula, after setting the solution, there should be a small line on the surface and enumerate each of the markers. Date of application, stored in a special notebook. If the crack expands, there is a beacon or cracking. Determine the date of cracking, it is possible to observe the speed of the crack and its development. Depending on the type of displacement, it is determined portion, which is produced under the influence of the load on the crack.
For proper reconstruction of the basement of a private house, you should use all methods of analysis. The second method, except for beacons is digging pits. This method is more informative, but it requires considerable physical performers and temporary investments.
It is digging a foundation near the pits, the minimum number of which is two. Pits usually called pit depth which is comparable with the foundation. In addition, the hole sees a certain bias, so it goes directly to the foundation.
To determine where digging the pit should examine the walls and building for deformation, in places its highest expression, the digging occurs. Thus, after carrying out such a process, it is possible to know about the depth of laying the foundation, the amount of groundwater, the materials from which it is carried out, as well as measures aimed at its waterproofing is still under construction.
To determine the amount of groundwater, it is necessary to wait a few days, after digging the pit. If available, or excess, they will fill the pit. Furthermore, using test purchased able to determine the level of water in the acids and alkalis. After determining the cause of destruction of the foundation, made up a plan of action to repair the foundation.
Technology reconstruction of the house with his own hands the foundation
There are situations that causes the destruction of the foundation requires hiring an entire team of specialists. For example, extensive landslides need professional handling of special machinery and equipment. However, if the foundation is in the initial stage of destruction, it is quite possible to cope with repair their own hands.
It happens that the foundation needs to be repaired at its flooding. In this case, it is necessary to adopt a number of measures aimed at the execution of works on arrangement of drainage or drainage.
One of the causes of flooding - contact and moisture from excessive rain or snow thawing. In this situation, it is necessary to equip a pneumatic barrier in the form of a half-meter blind area.
If under the influence of certain factors, the groundwater level has been raised, it is necessary to equip the drainage system. In such a case, the drainage system is a closed loop to form a trench which is dug by the foundation perimeter. Inside the trench should be laid pipe with perforations which are subsequently poured through the gravel.
Another popular reason reconstruction bases summer homes - formation of cracks due to the fact that the foundation was laid higher than the level at which the ground is frozen. Under the influence of heaving soil, building deformation occurs. In this situation, we must first carry out a number of activities aimed at providing additional thermal insulation of the foundation.
For this, the foundation perimeter, reaching only to his soles, must dig a trench, which is necessary to fill with sand or gravel, these materials are not able to expand under the influence of frost or moisture and have excellent insulating properties.
On top of the sand or gravel is necessary to lay the insulation, and then equip the blind area. The variant arrangement of filling only a layer of insulation, however, such action would cost the homeowner is not cheap.
Tip: If you do not on the surface of the waterproofing of the foundation, take care of its arrangement, prior to filling. Moreover, one should not forget the side of the foundation, which also needs additional insulation.
The most difficult and time-consuming in the embodiments is the reconstruction of the basement of a brick house or any other building, the presence of strong destruction. First the reasons leading to the consequences of failure and their presence in the moment. Further, a number of activities to address them: the installation of the waterproofing acid-resistant, moisture removal with the help of drainage, etc.
At wrong strengthening foundation also produced its gradual degradation, as a consequence, the foundation is not able to efficiently distribute the load from the building.
Some experts recommend strengthening the foundation with the help of a trench dug around the perimeter, filled with concrete and connected to the foundation with anchors. The effect of such measures hardly noticeable.
Production of the new foundation for the already existing building - there are times when without such radical measures will not do. To reinforce the foundation brick house, the foundation should be broken in certain areas most prone to deformation. The length of each of the portions should not exceed one meter. It is recommended to undermine the foundation of both the inside and the outside, if possible.
Reconstruction of the wooden house of the foundation requires a more careful attitude to it. However, these works are easier than the renovation of the building foundation made of concrete or stone. To restore the foundation in a wooden house, additional reinforcement is made lower timber rim, thus, the load on the foundation surface is reduced.
How to repair the foundation of a building by means of piles
For the reconstruction of the classical foundation of concrete, often used piles. These elements are perfectly resists high loads and can be easily installed under the building. In addition, when compared to the cost of the reconstruction of the foundation of a concrete method is to install piles - much cheaper and more practical.
The service life of the screw pile is more than 80 years. Also, do not need to hire a special equipment to install it. Screw piles allow to repair a wooden building, however, for major repairs, you should hire a special technique by which the house will gradually be understood.
To determine the quantity and size of each pile should take into account the overall weight of the building, and also to investigate the presence of primer additional inclusions therein and groundwater. After raising the house, made the work of dismantling the previously installed base. Note that the load-bearing walls should be located directly under the piles. For screwing piles to a depth, a special lever. Preliminary work should be carried out by the exact layout, the location of each pile. pile installation depth should be such that it necessarily exceed the level of soil freezing. For the control of the same height of the piles, using a water level. For connection between the piles is recommended to use a steel channel. In order to determine its size, consider the amount of load on the building. Finalizing a building foundation repair installation process to set the pile.
Piles are relevant in the event that the ground area is weak and often sags. In addition, to increase the service life of the wooden houses, the foundation on which they are installed should be well waterproofed.
To conduct additional waterproofing of the foundation, after the construction of a wooden house should be equipped with a trench on the perimeter of the foundation and clean the surface of the walls of the house from the dirt. Further, the wall of the building is treated with hot bitumen, which is installed on polystyrene in sheet form. Thus, the foundation is made from moisture protection and insulation. When the presence of moisture in the basement, there should be not only external but also internal basement waterproofing.
Reconstruction of the basement home video: