If you are building something with the expectation that the building will last for many years, then it is imperative for it to build a foundation. It does not matter whether it is a residential house, bath, garage, fence or greenhouse.
Articles in the category dedicated to foundations for a house will allow you to independently begin building your own house or any other structure that requires a reliable foundation. Even if you are not a fan of doing your own hands or you simply have no time, the information provided will allow you to monitor the progress of construction work carried out by hired workers.
Types of foundations for the house: which one to choose?
The construction of the foundation must be approached with all the responsibility, because otherwise you will not only constantly wait for various kinds of trouble during the operation of housing, but it may well happen that all this will end with the dismantling of the building, and subsequently the construction of a new foundation. What types of foundations exist and which one to choose in one way or another? We will talk about this today.
Choose a type of foundation for building a house
Depending on the method of support on the ground and the shape of the foundations are divided into:
The most common types of foundations are tape and columnar. The choice of foundation design depends on the type of soil and the material of the walls of the house.
In the individual construction strip foundations are used most often.
The material for the manufacture of strip foundations are:
Strip foundations are erected mainly in houses that have a basement, as well as under buildings with heavy walls. A strip foundation is installed around the perimeter of the house, as well as under the internal load-bearing walls. Obviously, for the installation of strip foundations, it will be necessary to expend a lot of materials, as well as forces, to carry out earthworks. But, despite the complexity, such foundations for the technology of their construction is quite simple. In the event that under the house warm undergrounds, basement, garage or ground floor, strip foundation are planned – exactly what you need.
Strip foundations are prefabricated and monolithic
During the construction of strip monolithic foundations, the trench necessary for laying the foundation is usually dug out by hand or with an excavator (as a rule, foundations are 40–80 cm wide). The width of the trench should exceed the width of the foundation on each side by about 10 cm, which is necessary for the device formwork. The formwork is made reinforcing strapping, into which the concrete mix is then laid.
The main advantages of monolithic strip foundations are that they are able to withstand heavy loads and are used in the construction of buildings of various shapes.
Prefabricated strip foundations are concrete or reinforced concrete blocks laid on the mortar and strapped with solid steel wire. This foundation is very strong and is being built very quickly. The service life of the precast strip foundation may be about 150 years.
Prefabricated strip foundations are used, as a rule, for the construction of buildings of simple shapes, since blocks of standard sizes need to be trimmed to implement any complex architectural tasks.
For buildings with a basement, it is not advisable to erect precast strip foundations, since the presence of horizontal and vertical seams on them reduces water resistance, and additional costs are required for additional waterproofing. The construction of strip foundations is also not economically justified on deep-frozen heaving soils due to a significant increase in the volume of earthworks.
The construction of strip foundations is justified in the construction of houses on several floors (except for houses whose walls are built with piece materials – reinforced concrete panels, bricks, etc.), as well as houses with a deep basement intended. for example, for a sauna, swimming pool or parking.
The main structural elements of the column foundations. as their name implies, are the pillars. The construction of column foundations consumes almost 2 times less material (as well as labor costs) than the construction of strip foundations. Pillar foundation is an ideal option for the construction of cottages, where there is no basement, and the walls – light frame, cobbled, panel or chopped.
Materials for the construction of the column foundation are:
• ceramic corpulent brick-iron, etc.
The pillars during the erection of the columnar foundations are installed at the corners of the external walls of the structure, and also under the intersections of the external walls with internal and internal walls – between themselves. The poles are placed with a certain step size (1.2–2.5 m – depending on the load on the foundation) along the entire perimeter of the building, and laying beams are placed on top. With a distance of more than 2.5–3 m between standing columnar foundations, it is imperative to lay on top either massive metal or reinforced concrete beams.
Depending on the material from which the pillars are made, the size of their minimum cross section is determined. For example, poles of slab-limestone, concrete or concrete, have a cross section of 40 cm; pillars of brick, installed above the ground, have a cross section of up to 38 cm; Natural stone masonry has a cross section of 60 cm.
Pillar foundations are prefabricated and monolithic
It is recommended to use monolithic columnar foundations in the absence of groundwater at a depth of more than 1 meter from the soil surface.
For the device of a monolithic columnar foundation, pits or holes are dug manually in the ground with the help of a special hole technique. The foundation pillars must have a reinforcement strapping (see photo). Reinforcement strapping is necessarily necessary so that during seasonal ground movements the pole does not break. Also required formwork, the shape of which can be both round and square. A gap of at least 10 cm is required between the walls of the pit and the formwork, in which, to avoid exposing the foundation column to ground movements, fine gravel or sand is poured after removing the formwork.
Prefabricated column foundations are intended for installation in wet, wetland areas where the erection of both stone and wooden structures is impossible. Such foundations are reinforced concrete pillars connected to the base plate. The role of reinforcement is performed by metal rods or wire.
Pillar foundations do not apply to houses with a basement or basement. They are not used in areas with uneven relief surface in order to avoid their tilting side pressure of the soil.
The cheapest option of the basement is currently columnar. The columnar foundation on heaving soils with their deep freezing is especially effective. At the same time on movable soils, the columnar foundations proved to be bad: they are not sufficiently resistant to tipping. To prevent the destruction of the foundation and the house as a whole, the installation of columnar foundations on moving soils is not recommended.
In addition, during the construction of the column foundations, difficulties with the installation of the basement are inevitable, whereas during the construction of strip foundations, the basement is obtained by itself and serves as a continuation of them. When building a columnar foundation, a concrete lintel must be arranged between the pillars of the foundation. To do this, you need to level the surface of the ground between the pillars (the width of the pillars), put a formwork not less than 40 cm high from the surface, make a reinforcing band, then fill the space in the formwork with concrete, which is a very laborious process.
Professional builders know that if the construction of the foundation was done in violation of the rules and regulations, then the house built on it will not meet modern security measures, because the walls of such a building can become covered with cracks and mow, and this already threatens the inevitable destruction of the whole house. Therefore, materials such as rubble stone, concrete and reinforced concrete are used for the construction of the foundation today. These materials are most in demand for the construction of foundations of houses, because they have such important characteristics as:
• resistance to temperature extremes;
• resistance to interseasonal ground movement.
The construction of rubble foundations is carried out by laying of rubble stone on cement mortar. Due to the fact that the stones are adjacent to each other quite tightly, rubble foundation has high strength. The life of the rubble foundation is about 80 years. It should be noted that such a foundation is one of the most expensive. This is understandable: after all, you need to accurately select each stone and customize them in size. The construction of the rubble foundation is fully justified on wet soils, because the rubble is moisture resistant (compared to brick foundations).
Unlike rubble, butobetonnye foundations are built in a special formwork of concrete, in the thickness of which pieces of rubble stone are added. The laying of the concrete basement consists of alternating layers of rubble stones, the space between which is filled with concrete with the addition of fine gravel, sand or rubble.
It is best to use concrete prepared on the basis of cement brand 300-400. It is recommended to use crushed granite or clean coarse sand as aggregate. The composition of the concrete should be the following: 1 part of cement, 3 parts of sand and 3-4 parts of rubble. At the same time, there should be enough water so that the concrete remains plastic, and it was possible to lay it in the formwork (and not pour it).
It is especially important when laying the foundations to take into account that storage of cement for a long time even in a dry place for 6 months reduces its mark by 25%, in one year by 35-40%, and in 2 years approximately two times.
Construction of quarry and butobeton basements is very labor intensive, therefore such foundations are most widespread in those areas where the local building material is rubble stone.
The construction of the brick foundation is carried out by laying from an ordinary well-burnt full-bodied brick using cement or cement-lime mortar. The thickness of the basement should be a multiple of the size of the brick and may be 38, 51 or 64 cm. Building a brick foundation in normal conditions of the construction work is considered impractical. The lifetime of the brick itself is relatively low and averages 40 years. In addition, the brick is not resistant to aggressive wet environments. Therefore, the construction of the foundation of brick will be the best solution in the case of construction of a house on the ground with the groundwater level above 1 m.
Advantages of the column foundations:
• less labor intensiveness in construction than other foundations;
The disadvantages of the column foundations:
• the need for the device base;
• the need to limit the use of columnar foundations in the construction of buildings with heavy walls on clay-sandy soils;
• very low stability in horizontally mobile grounds.
Another frequently used type of foundations in our time is slab foundations. They are a lattice or solid slab of monolithic reinforced concrete or special cross precast reinforced concrete beams that have a major seal of butt joints. A slab foundation is usually built on the entire area of the building. The construction of such a foundation is optimal on strongly and unevenly compressible, subsiding and heaving soils. In this regard, slab foundation is often called “floating.”
The construction of a slab foundation on clay-sand soils with a groundwater level less than 1 m from the surface, as well as in the construction of multi-storey buildings on clay-sand soil is fully justified. Plate foundations can withstand both vertical and horizontal movement of the soil.
Advantages of slab foundations:
• possibility of construction in heavy heaving, subsiding and mobile soils.
Disadvantages of slab foundations:
Another type of foundation is pile foundations. which consist of individual piles, covered with a concrete / reinforced concrete slab or grillage (beam) on top. The construction of pile foundations is a rather labor-intensive process, therefore, they are rarely used in individual construction.
Pile foundations are used in the construction of houses on weak soils, when you need to transfer a large load: they transfer the load from the structure to the more dense soils that lie at a depth.
Currently, piles are made of wood, steel, concrete and reinforced concrete. In addition, they can be combined. Piles are lowered into the ground either in a completely finished form ( driven ), or made in channels drilled in the ground ( packed ).
According to the type of behavior in the ground, the piles are different. having a strong ground beneath and transmitting pressure to it, and trailing piles. used in the deep bedding of solid ground.
The most economical are wooden piles, but when installed in damp soil they quickly rot. The service life of wooden piles is no more than 10 years. For comparison: the life of reinforced concrete piles is up to 150 years. Reinforced concrete piles are intended for the construction of multi-storey buildings.
Advantages of pile foundations:
• profitability in comparison with other types by reducing the consumption of materials;
• the possibility of using on soils with sufficiently low bearing capacity.
Disadvantages of pile foundations:
• the need to use special equipment during construction.
How screw piles work and how they help to keep the house level on difficult soils – watch the video.
We also recommend watching the video “Pros and cons of screw piles.”
How to determine the depth of the foundation?
When building a foundation, it is very important to correctly determine its depth. First of all, the depth of the foundation depends on the specifics of the relief. If the basement building is not provided in the building, then the depth of installation depends on the proposed underground utilities, as well as on the nature and size of the loads. Based on the foregoing, the bases divided into melkozaglublennye (weakly deepened) and recessed (profile).
Profile foundations are set below the level of soil freezing, determined by experts. Shallow concrete foundations are installed at a depth of about 50 cm. Thus, the recessed foundations are used for the construction of heavy buildings of brick or wood, lined with brick. Accordingly, the cost of the core foundation can be comparable to the cost of building the house itself. Shallow foundations are optimally set for the construction of light panel and frame wooden houses, garages, as well as various types of outbuildings.
One way to determine the optimal depth of the foundations you can see in the visual video below.
Factors affecting the choice of foundation type
The choice of the type of foundation is determined by many factors:
۩ What should be considered first of all is the type of soil prevailing on the site, which the geotechnical specialist can determine. The whole mass of soil under the structure serves as its foundation. Thus, the bearing capacity of the base is determined by the magnitude of the load, under the action of which the sediment occurs. At the same time, the soil is deformed not only from the load itself, but also under the action of temperature drops. And the water in the pores of the soil, in the case of freezing, expands, pushing the base up. Since each type of soil is characterized by a different sediment, it is possible to consider any particular type of foundation in more detail only after the necessary geological procedures have been carried out.
۩ It is very important to determine the depth of soil freezing. At the same time, it is also necessary to take into account the fact that for unheated premises the freezing depth should be taken 10% higher than the average. The depth of frost penetration from the ground is measured, and if a basement or semi-basement is provided in an unheated building, then from the level of their floor. For heated rooms, the value of the depth of frost penetration will be less by about 20–30%.
۩ However, the foundation built below the freezing depth cannot yet fully guarantee one hundred percent protection from the effects of frost heaving (especially for light structures). It can be reduced in several ways, for example: by reducing the lateral surface of the foundation;giving the base the shape of a trapezoid with a narrowing up; falling asleep in his sinuses with a non-rocky primer; and the creation of the side surface of the sliding layer with the use of a material having a low coefficient of friction.
Among other things, the level of groundwater also affects the depth of the foundation. It can be determined by conducting special engineering and geological studies by drilling wells in the area of wells, sampling soil and conducting chemical analysis of water. If construction of a wooden house is planned on the site, then the depth of these wells can be up to 5 m, and if it is brick or stone, it is about 7–10 m. At the same time, at least 4 wells are drilled at the corners of the future house.
۩ When choosing the type of foundation, the main factors are the purpose and design of the house.
If you, for example, decided to build a brick cottage, then you need to first determine the thickness of the walls and the height of the house, whether a garage, a basement or some other utility room will be equipped. For such a cottage, you should lay out a strip foundation with such a deepening that would most closely correspond to the type of soil in this area. The walls of reinforced concrete panels and blocks erect it on the strip foundation. The construction of the slab foundation is possible under the condition of erection of buildings on the slopes of hills, clay and sandy soils, marshy soils, etc.
If the walls of the house are planned to be made of wood or they will have a frame-shield construction, then there is an opportunity to save some money on the foundation without detriment to the future structure. For such a house would be enough and shallow foundation. To do this, it will be necessary to remove the top layer of soil 50 cm thick, then lay rubble and compact it. Further along the entire perimeter, a drainage pipe is installed. On top of the rubble layer, the road film-membrane is lined, on which a layer of compacted wet sand is laid, insulation, reinforcement is reinforced and waterproofing is performed. And finally, concrete is poured in, forming a solid monolith as a result.
In conclusion, I note that the foundation of your future home, as well as the strength and quality of the materials from which it is made, will depend largely on the service life and the house itself. After all, the main supporting part of any building that takes the entire load of the building upon itself is the foundation.
Of course, the price of a solid, reliable and durable foundation is usually between 15-20% of the value of the house itself. But despite this, one of the most widely used types of foundations in construction today is a tape monolithic foundation of concrete.
And my advice to you: for the construction of the foundation for all questions, please contact the experts who will make the foundation of the future house solid and reliable and provide a guarantee for all the work performed.
8 comments on the types of foundations for the house: what to choose?
As always capacious material. For my part, I would like to add that in the autumn, when the weather is still moderately warm, but when it starts to get cold, I try to use quick-hardening cement when doing small concrete works. Now they are in demand on the market because they save time quality. As an example of such cement can be called Master Universal, you can find others with the letter “B” in the designation, but I know only this one. For large volumes of work, I order concrete with an antifrosty additive.
I bought Trimble 9-5-6s in Trimer. The foundation turned out to be durable and the installation took not much.
The foundation for a brick house do it yourself
The foundation of any home is its foundation. When you create this element of construction is required to perform work with great care. After all, the strength of the brick house built on it directly depends on the correctly chosen type of foundation and on how well it is created. Of course, you can create a solid foundation for a brick house with your own hands, and this requires very little. It is enough to understand the different types of foundations, to know about their strengths and weaknesses, as well as be able to handle the tool.
Selection of foundation type
When planning to create a foundation for a brick house, you should take into account its large mass. Otherwise, the construction of the foundation, not designed for heavy loads, will lead to the appearance of cracks on the walls of the house and its partial destruction. To do this, and make a technical survey of buildings. The load created by the brick house, can withstand several types of foundations, namely: tape, pile, slab.
Important! For brick houses it is not customary to use shallow and columnar foundations. But this is true only for shallow-tape strip foundations and columnar foundations of metal pipes, since they cannot withstand the heavy load of a brick house.
Regardless of which foundation you personally prefer, there are a number of specific requirements and standards for each of them. And the correct foundation for a brick house can be created only if these norms are observed. When choosing a particular type of foundation, you must consider the following:
- physical and mechanical characteristics of the soil;
- depth of soil freezing;
- ground water level.
Video: Foundation Types
For detailed information, it is best to invite a specialist who, after careful verification, will give detailed data on soil characteristics. Only after that you can proceed to the selection and arrangement of the foundation. If you already know about the properties of the soil in your area, then the tables below show the dependencies of the various types of foundation on the characteristics of the soil.
Table 1 – Dependence of the choice of the type of foundation on the type of soil
Table 2 – Dependence of the choice of the type of foundation on the future structure
Table 3 – Depth of the basement for a brick house on the type of soil and groundwater occurrence
Strip foundation for a brick house
The popularity of strip footing is enormous. Construct a strip foundation for a brick house, for a house of concrete or stone, in cases where massive concrete floors are used in the construction. It is able to withstand heavy loads and stands out for its simplicity. The basement tape is placed around the perimeter of the building and under the inner walls. Another indisputable advantage of the strip foundation is the ability to create a basement or basement, where the foundation tape will serve as walls.
The tape base is divided by type of construction into prefabricated and monolithic. Monolithic are a one-piece, reinforced concrete structure. This foundation has high strength characteristics, and work on its construction can be performed independently. Unfortunately, the main disadvantage of the monolithic foundation is a long time of hardening and curing. The prefabricated foundation consists of stone or concrete blocks. It is built a little faster, but to perform all the work will require additional labor and special equipment. In contrast to the monolithic precast foundation has lower strength characteristics.
Also, the separation is depending on the load on the ground – shallow and deep. Foundations with a depth of 50 – 70 cm are considered to be shallow deeper. Such foundations are suitable for lightweight structures. A shallow foundation for a brick house will not be able to withstand its weight, therefore, for houses made of brick, concrete and stone, a recessed foundation is being constructed. This foundation is laid 30 cm below the level of soil freezing and in cases where the project provides for a basement or basement. On a tape foundation for a brick house the price starts from 180 USD per m3. In addition, the cost of the foundation for a brick house is also affected by the distance from a large city, where all the necessary materials are available.
To create a strip foundation, you must do the following:
- clearing the plot, removing the turf layer and marking the place for the future foundation. Make sure the corners are strictly straight;
- with the help of an excavator or manually dig a trench or pit of the desired depth under the foundation. What exactly will have to dig depends on the project at home. If it is with a basement or basement, then dig a pit, and if not, then a trench. The dimensions of the pit or trench do 1.5 – 2 more. This is necessary for the convenience of arranging the formwork and pouring concrete. The bottom is carefully aligned with the horizon and with the help of a theodolite we check the depth mark in the corners;
- for a monolithic strip foundation, the bottom of the trench is watered with water and sprinkled with a layer of a mixture of fine gravel and sand with a thickness of 200 mm. After that, the entire surface is thoroughly rammed with a vibrating plate. Finally, the cushion is covered with waterproofing and is poured over with a thin layer of lean concrete. For the precast foundation, the same operations are performed with the only difference that the tamping and cushioning is carried out only in the place where the concrete blocks will be installed;
- to create a precast foundation, you will need to use special equipment, as concrete blocks have a large mass. We install the blocks into place and fasten them with cement-sand mortar. The method of laying blocks is the same as when laying bricks. The only difference is in size;
- To create a monolithic foundation, we first install a formwork of wooden planks 40–50 mm thick, which are rigidly fixed with struts. But it is most convenient to use a frame-shield folding formwork. During the installation of formwork it is necessary to check the verticality of the walls. The height of the foundation above the ground should be at least 40 cm, and for wet soils and more. According to this, the height of the formwork is also made;
Important! For good insulation of the basement sole, ruberoid is laid on the bottom, the edges of which are brought up.
- Next, create a reinforcement cage for strip foundations. For it we use bars of reinforcement with thickness from 6 mm to 10 mm. Cutting the required number of twigs of the right size, we weld them together. The finished frame is lowered into the trench on the previously laid out supports made of brick or stone;
- it now remains to prepare the concrete and pour it inside the formwork. The process of pouring itself is carried out in layers of 15–20 cm, in several approaches. After each approach, the concrete is settled down with a vibrating hammer or other improvised tool, such as a shovel. This is done to eliminate voids and create a solid foundation;
Important! To the foundation was strong, the consistency of concrete must be of medium fat content. Such concrete does not flow around obstacles, and some effort must be made to move it.
- freshly cast foundation leave until completely dry. This may take about a month. At the same time, at first it is necessary to water the surface with water so that the concrete does not dry out or crack;
- after the concrete has set, the formwork is removed and the foundation is waterproofed. For these purposes, you can use a variety of roll, coating and other waterproofing materials;
- Finally, we fill the foundation. We do this with extreme care not to damage the waterproofing layer.
Pile foundation for a brick house
This type of foundation is settled in cases where construction is carried out on crumbling soils that cannot withstand a large load of a brick house. When using the pile foundation, the load is transferred to more dense layers of soil that are at a great depth. Its construction consists of separate piles, interconnected along the top by a concrete or reinforced concrete grillage, on which the walls of the house rest. The pile foundation for a brick house can be equipped on more solid ground, thereby reducing the amount of materials used and the volume of earthworks. Of the disadvantages of this type of foundation, it is necessary to note the use of special tools and equipment for drilling wells or driving them into the ground.
There are many types of pile foundations made of various materials. Of these, a bored reinforced concrete foundation with wide soles of piles is most suitable for a brick house. It is possible to arrange such a foundation both independently and with the use of special equipment. The price for a pile foundation is somewhat lower, but still very much depends on the distance from the city. The further, the more expensive. To create a pile foundation, do the following:
- clearing the plot, removing the turf layer and marking the place for the future foundation. Make sure the corners are strictly straight;
- mark the place under the pile. To do this, starting from the corners, with a step specified in the project, we make a small excavation for each of the piles for further drilling;
- now with the help of a special drill or ordered special equipment we drill wells for piles;
- while drilling is in progress, it is possible to prepare the bars of the reinforcement and weld them together for a reinforcing framework. The length of the frame should be 20-30 cm above ground level. This is necessary for further binding to it the framework for the grillage;
Important! If it became necessary to move the piles above ground level, metal pipes of the desired diameter can be used as a formwork for them.
- upon completion of drilling, we pour a small layer of gravel mixed with sand to the bottom. Further we lower the reinforcing framework and we fill it with concrete. Do not forget to shake the concrete to remove voids and create a monolithic structure. The concrete itself can be prepared directly on the site;
- while the concrete in the piles hardens, we make the reinforcement frame for the grillage and tie it to the pile frame. Then we make a formwork, which is placed around the reinforcing frame of the grillage;
Important! As a formwork for the grillage, the most suitable option would be a panel board. It is easier to mount and strengthen, and the ready grillage will turn out better.
- after the installation of the formwork, pour concrete inside. Just as in the case of the tape foundation, we perform all the work in several approaches, tightening and tamping the concrete;
- it remains to allow the concrete to dry and build fortresses, after which the grillage can be waterproofed and proceeded to the construction of walls.
Slab foundation for a brick house
The most simple in its design and arrangement is a slab foundation. In essence, it is one solid reinforced concrete slab, on which the whole house rests. Another important difference from the pile and strip foundations is its ability to perceive loads without damage for the whole house during uneven horizontal and vertical movement of the soil. This type of foundation is settled mainly on heaving and subsiding soils, as well as on soils with a high moisture content.
Slab foundations are divided into non-buried. shallow and deep foundation. The non-buried version of the slab foundation is settled directly on the ground. The depth of occurrence for a shallow slab basement is within 50 cm. Such foundations are also called floating. The deep-laid slab foundation is located just below the ground freezing point.
It is possible to create a slab foundation from a lattice or solid slab, which is molded from high-quality concrete, from precast I / B beams laid in a cross way with a rigid connection, and also from precast I / B slabs with the obligatory creation of a monolithic coating.
From slab foundations the most accessible and simple to create your own hands is a low-buried monolithic slab foundation. Such a foundation will significantly save on concrete and labor costs. The cost of the foundation for a brick house depends on the area of the house and the distance from the city. The price starts from 90 USD To create a monolithic slab foundation, do the following:
- clearing the plot, removing the turf layer and marking the place for the future foundation. Make sure the corners are strictly straight;
- we make a small excavation to a depth slightly greater than the thickness of the future foundation;
- level the surface and fill the layer with rubble over the whole area. Crushed stone is carefully leveled and tamped. Pour a small layer of lean concrete over it;
- Unlike pile and strip foundations, slab requires better hydro and thermal insulation. Therefore, vinyl film, roofing material, geotextiles are laid over lean concrete, and thermal insulation made of foam plastic, polystyrene foam, polyurethane foam is laid on top;
- around the perimeter of the foundation we make formwork. Here you can safely use boards with a thickness of 40 – 50 mm. The main thing is to make for them powerful and reliable struts;
- Now we are making reinforcement cage. Cut rebar and weld it together like a grid. All work is performed directly on the site of the future foundation;
- the final stage will be pouring concrete. It is best to do this in one run, so it will be rational to order a ready-made mixer with concrete, instead of making small portions in an ordinary concrete mixer. Bay concrete, it is necessary to shake it carefully and leave to harden. During the first few days the surface will have to be wetted with water.
Strengthening the foundation of a brick house
Sometimes after acquiring an already built home after a while you will notice cracks in the walls. This suggests a poor quality or weak foundation, not able to withstand the weight of the house. There is a way out of this difficult situation – this is strengthening the foundation of the house. Of all the ways to strengthen the foundation of a brick house, the most simple and affordable will be to increase the basement area. But there are other methods of amplification.
To do this, you need to choose the soil around the foundation and with the help of a special cement gun under high pressure to make a spray of the solution on the foundation wall.
Pile way to strengthen
Near the walls of the foundation, wells are drilled, into which the reinforcing frame is lowered and filled with concrete.
Arrangement of reinforced cage
A formwork is made around the foundation throughout its area, into which the reinforcing frame is placed and poured with concrete.
Arrangement of protective walls
From the outer side of the foundation, a part of the soil is selected, the formwork flush with the foundation slice and then poured with concrete.
The broadening is performed in the same way as in the case of protective walls, with the only difference that the width of the foundation can grow by 50 – 100 cm.
Foundation strengthening: video demonstration
Sources: http://cdelayremont.ru/fundament-svoimi-rukami, http://muzhik-v-dome.ru/stroitelstvo/vidyi-fundamentov/, http://strport.ru/stroitelstvo-domov/fundament-dlya -kirpichnogo-doma-svoimi-rukami