Wooden houses have always been considered inexpensive private construction. After all, wood in Russia is the cheapest building material. But even under such light structures, the foundation sometimes collapses. There are several reasons for this, where even simple human carelessness occurs, which primarily leads to large financial costs. The foundation can be repaired if the defects are not serious. Therefore, let’s look at how you can repair the foundation of a wooden house.

Causes of destruction

Which usually causes deformation of the foundation structure. It is necessary to highlight two main factors.

1. The bearing capacity of the soil has become less.
2. The material from which the base was assembled has lost its strength.

In the first case, there are several positions, which are often ignored by the developer when constructing a wooden building.

1. The type of soil and its bearing capacity were not taken into account. For example, the soil on the site is weak and soft, but the building turned out to be large and heavy. It puts pressure on the foundation, which in turn puts pressure on the soil, which is pressed under the total weight of the structure.
2. Stormwater and drainage sewerage were not organized. Precipitation washes away the base and it begins to sag. Groundwater has risen, and the soil and foundation structure are also weakening.
3. If another heavy structure is being erected next to the house, which puts pressure on the soil layer in its own way. He, in turn, begins to move, rising under lighter buildings.

In general, the situation with the loss of strength of the foundation material is not simple. Therefore, when there is a conversation about its construction, you need to contact a specialist. And the reasons for the appearance of defects in this regard are as follows:

• The type of foundation structure is incorrectly selected;
• The concrete solution was mixed incorrectly in violation of technological rules;
• The wrong grade of concrete was chosen;
• The level of soil freezing was incorrectly determined;
• Violations were made during the process of pouring concrete into the formwork of the foundation structure.

Therefore, the reconstruction of the foundation of a wooden house begins with identifying the exact causes of damage.

What are the types of foundation destruction?

You can’t just say that the foundation is destroyed or damaged. In construction, there are certain standards that are regulated by the degree of damage to the old foundation. Based on them, the restoration technology is selected. Therefore, before redoing the foundation, you need to determine the type of damage.

Minimal destruction

These are damages that do not change the load-bearing capacity of the foundation of the house. This includes peeling trim, cracks, gaps and crevices that are small in size: neither deep nor wide. Moreover, such defects are clearly visible to the naked eye, which means that you can calmly approach the repair of the foundation of an old wooden house with your own hands, because fixing all this is not a problem.

Moderate injuries

These include cracks, but you need to understand that there are different types of cracks. The most important thing is the direction of formation of the defect. If it is horizontal, then it does not affect the bearing capacity of the old foundation. If it does, it is insignificant. But if the crack is vertical or zigzag, then the problem is big.

Therefore, you need to immediately decide whether the defect is growing, that is, progressing, or whether it is a temporary disorder. This can be defined as follows:

• apply putty solution to the crack;
• mark the crack line on it with a marker;
• as soon as the layer of putty cracks, the crack is progressing

In this case, you can immediately determine how quickly a concrete defect is growing.

Attention! The thickness of the putty layer should not exceed 5 mm, and the layer should only be applied to a dry and clean surface.

If the putty layer is not damaged, it means that the soil simply shifted and stopped. There will be no further destruction. It remains only to repair the crack itself with a repair mortar. This is done simply:

• defects are embroidered - increase in size in width;
• cleaned of dust and weak areas;
• primed;
• filled with cement mortar.

Repairing the foundation of a wooden house with your own hands with such defects is a small investment in money and time.

catastrophic damage

Unfortunately, when the moment comes that determines this type of damage, then we can only talk about repair as reconstruction. That is, this process is costly and requires large capital investments. The foundation of an old wooden house with such defects is restored, taking into account the type of foundation structure. The tape type and columnar type can be repaired. Unfortunately, if catastrophic damage has affected the slab base, then the moment can be considered lost.

Unremovable deformations

Neither restoration, nor major repairs, nor other attempts to repair the foundation of a private house with your own hands will help here. It is easier to demolish the building itself, destroy the foundation and in its place build a modern house or cottage that will meet the requirements of the construction technology. Therefore, you should not even try to do or change something. A waste of time and money.

How to repair the foundation of a wooden house

Since the strip structure is most often installed under wooden houses, we will use its example to look at how to restore a foundation of this type. There are many technologies available, from amplification to complete replacement. And, as mentioned above, much will depend on the extent of the damage.

Here is the sequence of operations:

1. To do this, you will have to dig a trench along the length of the foundation with a depth equal to the depth of the foundation strip and width so that work can be carried out inside.
2. Now reinforcing pins with a length equal to the width of the reinforcing layer are driven into the old structure. This parameter can be from 5 to 20 cm. The location of the pins is cells with a side of 0.5-1 m.
3. A reinforcing grid is made on the ground from reinforcement with a diameter of 6-12 mm with cells of 20 x 20 or 30 x 30 cm. The rods are tied together with wire. The size of the grid should be equal to the size of the foundation strip under the house.
4. The grating is installed in a prepared trench, where it is welded to pins driven into the old foundation.
5. The formwork is being assembled.
6. A concrete solution is prepared and poured into the formwork.
7. The formwork is removed after 7 days.
8. Waterproofing measures for the new layer are being carried out.
9. Backfilling with soil.

Carrying out such repairs to the foundation of a country house with your own hands does not require special skills, knowledge and experience. The entire process is simple.

Complete replacement

Renewing a complete foundation is not so easy. But it will have to be carried out if the structure has sagged greatly and cracks are tearing it into small pieces. This is an emergency situation. How is this process carried out?

1. Everything must be removed from the house, even the stove, if it is installed on the floor and not on a separate foundation. The floors are being dismantled and the doors are being removed. That is, it is necessary to make the structure of the building as light as possible.
2. Now, separately under each corner of the building, a beam of at least 100 x 100 mm in size must be inserted horizontally. Stands are installed under it. They must be strong and reliable, because subsequently it is on them that the entire weight of the wooden house will be transferred. Typically, timber or logs are used as stands, sawn to the required length and installed vertically.
3. Next, the lower crown of the house is attached to the upper ones with metal profiles or boards 50 mm thick. This is so that the crown does not sag when the house rises.
4. Wooden wedges are being prepared. They will need to be driven under the walls of the house when lifting. This is an additional support to reduce the load on the jacks.
5. Four jacks are selected based on the weight of the building. This can be easily determined if you know the specific gravity of the materials from which the house is built. For example, one cubic meter of pine logs is equal to 750 kg.
6. It is better to install lifting mechanisms at the corners of the building. It must be lifted at the same time; wedges are immediately driven under each wall every 20 - 30 cm.

Attention! When lifting a wooden house, distortion may occur. It is acceptable, but no more than 8 cm on one side.

When the house is raised to a sufficient height, you can proceed to dismantling the foundation itself. This must be done quickly and carefully. If a recessed version was laid under a wooden building, then you will first have to dig a trench at least 1 m wide around the perimeter.

And one moment. Before carrying out all the operations described above, it is recommended to make one hole on each side of the walls of the house to determine at what depth the groundwater lies. It may turn out that they were the reason for the destruction of the foundation.

So, everything is ready to build a new foundation.

1. A sand and gravel cushion is made.
2. The formwork is being constructed.
3. A reinforcing frame is installed in it. This is usually done like this: install the inner wall of the formwork, lay the reinforcing belt, and mount the outer wall.
4. Concrete is prepared and poured into the formwork.
5. After 7 - 10 days, the formwork is dismantled.
6. Carry out waterproofing measures.
7. After 28 days, the house is slowly lowered onto the new structure.
8. The base is filled with soil and finished.

How to add a foundation to an old wooden house

Sometimes there are situations when a wooden house seems to be built with the bottom crown on the ground. So, 50 - 100 years ago, they were built on hills where water did not accumulate in the ground. That is, they did without a foundation. Such buildings could not stand for a long time, because the lower crown of the wooden house gradually rotted.

You need to approach the renovation of an old house from the perspective of pouring a new foundation. And this will have to be done almost exactly the same as in the case of dismantling the foundation structure. That is, it will be necessary to raise the building and pour a strip foundation under an old wooden house with the installation of formwork and a reinforcing frame. Of course, we need to make sure that maybe there is some kind of foundation under the structure after all.

To do this, you need to dig holes in several places near the walls of the house. The easiest way to do this is with a garden drill. If the foundation is found, then it is necessary to examine it for integrity and identification of defects. This means you will have to dig a trench along its entire perimeter.

If no major damage is found, then concrete mortar can be poured along the upper plane of the structure with the installation of shortened formwork and a reinforcing grid or mesh. Such repairs to the strip foundation of a wooden house must be approached from the position of raising the entire structure so that the lower crown does not touch the ground. And this is within 30 - 40 cm.

If the foundation of a wooden house is significantly damaged, that is, it requires a complete replacement, then you will have to not only raise the house, but also dismantle the old foundation structure and pour a new one in its place.

There is another option for repairing such a foundation. To do this, holes are made along the entire perimeter of the house, close to the old foundation, every 1 - 1.5 m. Essentially, these are columnar structures that will support the ribbon structure. In them, as in the construction of conventional pillars, sand and gravel bedding is made, steel reinforcement is inserted in the form of a frame and concrete mortar is poured.

After that, a beam or metal profiles (channel or I-beam) are mounted on every two oppositely installed supports. The wooden structure will mainly rest on them.

Conclusion

To lay a foundation for an old house built of wood, you must first determine how damaged the structure is. It may be necessary not only to carry out repairs, but to completely reconstruct the foundation.

Repairing the foundation of a wooden house with your own hands

To repair the foundation of a wooden house, you must first determine the cause of the destruction, and then choose a method of elimination.

During the operation of the building, over time, not only the walls of the house begin to collapse, but also the foundation on which it stands. To maximize the life of the building, it is necessary to carry out major repairs and eliminate all damage. Repairing the foundation of a house with your own hands allows you to carry out the work with the highest quality and save money. The types of repair work and the causes of damage to the structure of the house depend on various factors. Let's look at them in more detail.

Signs of foundation failure

To assess the severity of the required repairs to the building, you need to examine its damage. There are numerous reasons for renovating the facade of a house:

1. The appearance of distortions in the doorway or windows, which lead to inconvenience in closing/opening the door and window sashes, indicates that part of the foundation has sunk into the ground.
2. An increase in previously formed cracks and the appearance of new cracks on the walls of a building.
3. Annual flooding of the basement floor (basements) with melt water in the spring.
4. Formation of destruction on the surface of walls.
5. A sharp change in the position of the walls of the house and stairs.

However, the listed items may not always indicate the need for thorough repairs. In some cases, cracks appear due to shifting of the foundation, which may occur due to the construction of a structure near the house.

Before you panic and start repairing the foundation of a country house, it is recommended to observe the cracks: how strongly and how often they diverge. To help with observation, you can use tissue paper or a regular napkin, on which you need to write down the date the “beacon” was placed and stick it on the crack. If the formation increases, the paper will tear and the faster this happens, the faster it will need to be repaired.

Reasons for repair

What can cause the foundation of a house to collapse? We list the following reasons:

Types of repair work

Currently, there are various ways to reconstruct the base or strengthen it. Since various materials are used to build houses: wood, brick, reinforced concrete, etc., repairing the foundation of a house with your own hands will be carried out according to a certain method.

Most often, during the construction of buildings, strip foundations are laid. If we look at it in more detail, it looks like an integral structure, in some areas of which it is unacceptable to exceed construction loads. Heaving soil can deform the base of such a structure, so before laying the foundation of a house, you need to carefully study the soil and the depth of its freezing.

To repair the foundation of a wooden house, the house will need to be completely raised and only after lifting the foundation of the building will be laid. However, this reconstruction method is only suitable for wooden buildings.

If the structure has tilted due to subsidence of the soil, then as a result of the repair it is necessary to balance the impact force by increasing the area of ​​the structure. The start of repairs should be carried out where the highest level of roll is detected. Instructions for repair work:

• It is necessary to mark a two-meter section of the structure and dig a trench near it. Its depth (one meter) must exceed the lowest point of the damaged part;
• The part of the base that is exposed to the ground must be cleaned of adhering dirt, plaster and other deposits;
• The cleaned wall surface must be treated with a primer designed for deep penetration;
• Holes are prepared on the damaged wall into which anchors are screwed. The minimum number of vertical rows is 3, the horizontal space between the elements should be 60-120 cm;
• A reinforcing mesh welded from metal rods is welded to the anchors. Their diameter should not exceed 10-14 mm;
• A liquid solution of concrete mixture is poured into all formations that appear as a result of destruction;
• If the resulting damage has a wide area, in this case it is necessary to install formwork that is filled with concrete;
• Some time after the solution has dried, a layer of waterproofing is attached to it;
• The trench is compacted with layers of soil, and each layer must be compacted.

When repairing the structure of a wooden building, the buildings are supposed to be raised; in all other cases, concrete is poured or the area of ​​the structure is increased. It all depends on the degree of damage and the cause of its formation. It is recommended to periodically check the condition of the structure for integrity, which will avoid severe damage to the surface of the walls.

Surgical intervention in reconstruction

If urgent repairs to the columnar foundation of a country house are required, then you must resort to the following actions:

• Remove soil from the damaged area of ​​the wall;
• Dig a hole to the very base (the angle should not be less than 35 degrees) and use a pipe (made of metal or asbestos) to pump in the liquid concrete mixture. It is poured until the canvas stops absorbing it. After 1-2 hours, the procedure must be repeated and this must be done several more times after 1-2 days;
• Paper beacons are installed on the crack (they were described at the very beginning of the article); if the paper breaks, it means that the building’s subsidence continues further and in this situation, circular concreting of the base will be required;
• If the beacon remains unchanged, then the structure can be covered with soil and compacted.

Repairing the foundation of a brick house is impossible without the initial installation of paper beacons, which will help determine the rate of increase in the cracks formed.

In general, foundation repairs should be carried out once every few years and repair work should be carried out according to a planned procedure. You will have to repair a country or private (dacha) house yourself or seek help from a team of builders who will carry out all the necessary repairs for a fee. Unfortunately, in this case it is impossible to talk about the high quality of the work performed and a good result. As they say, "time will tell".

Nevertheless, it is very difficult to repair the base of the building with your own hands. This procedure requires certain knowledge and skills. Moreover, it does not matter what kind of base is subject to repair: strip, columnar, reinforced concrete slabs, reinforced, wooden, etc.

Waterproofing restoration

The easiest way to waterproofing is to introduce an injection solution. It is poured through certain holes that are prepared in advance in the concrete surface of the wall. In this way, moisture from the soil can be prevented.

Waterproofing walls is necessary both at the construction stage of a building and in the case of structural repairs. The fact is that it is designed to protect the facade and structure from damage by groundwater, which will subsequently lead to a reduction in the service life of the structure and destruction of the building.

In some cases, in order to prevent the structure from settling, it is necessary to lay out a new part of it. Thus, part of the load will be transferred to the added area using metal or reinforced concrete beams. They will pass through the basement of the building. The laid foundation must be anchored, as a result of which through fastenings will be made.

When carrying out repair work, you need to calculate every action you want to take. The fact is that often the result of the procedures remains unchanged or, on the contrary, worsens the situation. In such a situation, it may be necessary to change the structure itself, which in turn may lead to the reconstruction of walls, ceilings and other building structures.

If you cannot independently determine the required list of works, contact a specialist. A professional person can at one glance determine the entire range of work that is necessary to completely restore the foundation and extend the life of a particular building. After receiving a full consultation, you can carry out further repairs yourself. Accordingly, responsibility for the work and its consequences will be assigned to you.

After long-term use of a building, its supporting system wears out somewhat and becomes covered with cracks and chips. Major repairs to the foundation of an old private or country house of a strip, columnar or other type can be done with your own hands, but this work will require some skills and special equipment.

Diagnostics

Before starting construction work, you need to assess the task and its level of complexity. The most difficult task is to carry out both independent and professional repairs, as well as restoration of the foundation of a concrete and stone house. The main reason lies in the fact that the cracks cannot be completely repaired - most of them are located under the building. But in other situations everything is completely fixable.

Photo - old foundation

In what cases does the foundation of a country house, bathhouse, garage and other buildings require repairs:

Experts say there is no such thing as a cracked foundation that cannot be repaired. It all depends on the abilities and financial capabilities of the owner of a country or city cottage.

Photo - repair of the foundation of an old wooden house

Reconstruction methods

The technology for repairing the foundation of a stone and brick house is quite complex. First of all, you need to check at what rate the destruction of the support occurs. To do this, you need to apply a relatively thin strip of gypsum mortar over the cracks. After it hardens, you will be able to assess the scale of the destruction. Wait a few days and evaluate the condition of the lining. If it is cracked, then reconstruction should begin urgently, but if not, then you just need to carry out cosmetic repairs.

Photo - rise

The simplest option available at home is to simply pour dense cement mortar into the resulting cracks. But this is more appropriate when strengthening the facade, since over time, in any case, the support will have to be changed.

If the foundation of a brick residential or country house is destroyed along the entire perimeter, then more serious repairs are required. Step-by-step instructions on how to strengthen and strengthen the old supporting system:

Similarly, you can repair a foundation built with screw piles, which is often used to build a rustic frame house, fence or utility room from a log frame. Then it is necessary to dig up each pile separately and strengthen it according to the described method.

This type of construction has many positive qualities:

1. The supporting system receives the properties of a reinforced concrete foundation, which is used to construct an apartment building;
2. The owners have the opportunity to build a two-story house on an old support (provided that the second floor is made of wood, timber, foam concrete or other lightweight materials);
3. In addition, the material placed on top of the reinforcement helps increase the protective properties of the building. The sample is insulated and protected from the destructive effects of groundwater and wastewater.

Photo - principle of strapping arrangement

But this option is quite complicated, and besides, repairing the old foundation of a panel or wooden house requires a different approach. The following methods are used for their reconstruction:

1. Raising the existing base and installing it on a new sole;
2. Complete replacement.

Depending on what the house is installed on (on a sand bed or using screw piles), its repair may vary. How to reconstruct a building on stilts:

Sometimes a pile or columnar structure is strengthened using so-called crowns. The reinforcing mesh (crowns) is installed around the perimeter of the foundation and welded.

Video: repairing an old foundation

Price overview

To raise a veranda, garage or carry out major repairs to the foundation of a residential building, it is best to contact a professional organization. Companies providing such services provide full technical support.

How much does it cost to raise the foundation and repair the walls in a stone house (turnkey price):

An estimate, if necessary, is drawn up before the start of work so that you can calculate your budget.

Installation of fittings

Restoring the foundation is not a difficult task, but it is labor-intensive.

You can strengthen a collapsing concrete strip in the following way - pour an additional layer of concrete with good reinforcement around its entire perimeter, that is, make a kind of sarcophagus.

In this case, the new fill should take on the main load and prevent further destruction of the old foundation. To do this, it is necessary to ensure strong adhesion between the new and old structures. The excavated foundation must be thoroughly washed, otherwise the new fill will not adhere to the dirty concrete. It is also important to ensure reliable reinforcement. For this purpose, I decided to tighten the reinforcement cage on both sides of the tape with jumpers - studs passing through the old foundation, for which I made through holes in the tape in increments of 50-70 cm, using a hammer drill with a long drill.

The prepared reinforcement bars were first bent at a right angle at one end. Then he inserted the rod into the hole and bent the other end. The bent ends on both sides of the tape were connected to the reinforcement cage.

Thus, the frames on both sides of the tape were connected by S- or U-shaped jumpers. Each bend of the lintel should be 40-50 mm from the surface of the foundation. In my case, the reinforcement frame is made of metal mesh (4 mm thick) with a cell size of 100 * 100 mm, connected at the top with 0 8 mm reinforcement bars and tightened with jumpers.

Installation of formwork

The height of the excavated part of the foundation is about 70 cm. If the formwork is installed entirely at once, then it is unrealistic to properly lay concrete in such a narrow and high form. Therefore, I decided to pour the concrete in two stages, with the formwork rearranged vertically.

I used flat slate linden to make the formwork. This material is ideally suited for this purpose: it is elastic and durable, and the surface of the finished pour is even and smooth. But the most important thing is that the slate easily moves away from the hardened concrete, and the formwork is easy to disassemble. There is no need to lay polyethylene or glassine, as is done in classic formwork made of boards or plywood.

Pouring concrete

The volume of concrete is small, so you can work without the use of mixers and concrete pumps. The concrete mixer stands next to the formwork; it is easy to transfer the mixture with a shovel.

To quickly assemble smooth slate formwork, I used a little trick. The two panels were temporarily but securely connected to each other by an ordinary clamp. The main thing is not to forget to remove it in time after pouring, before the concrete hardens.

For the second sushi, I removed the lower formwork and raised it higher. Since you have to make three strips in turn, you don’t have to wait for the concrete to harden: while the first pour is setting, I start the second, and so on. Three tapes on two floors: six days - and everything is ready.

Work is done. The result is a powerful (even too powerful) new strip foundation that will last uh... enough for our lifetime!

The result obtained has a small minus. In the classic version of a stone fence, the width of the foundation should not be greater than the thickness of the brickwork. If these proportions are not observed, the entire fence will look inharmonious. But in my case there was no alternative.

I will proceed as follows. Firstly, I will fill the foundation up to its upper edge, and trim the horizontal shelves with wild stone.

I tried to analyze why the foundation began to deteriorate so quickly and what my builders did wrong. Having carefully examined the structure, I came to the conclusion that, in addition to the banal non-compliance with the proportions of the concrete mixture and its poor mixing, there are two more reasons.

Firstly, workers used unsifted sand with a large amount of clay admixtures, which significantly reduces the grade of concrete. In addition, in early spring, during freeze-thaw cycles, poorly mixed concrete quickly breaks down. Secondly, the builders used too liquid concrete, believing that in this way they could fill all the voids in the formwork, and not suspecting that the strength of the structure was sharply reduced.

Well, as they say, if you want it done well, do it yourself!

Do-it-yourself strip foundation repair - progress of work

Having dug out all three foundation strips around the perimeter, they found an unsightly picture. Almost two-thirds of the volume of the tape simply disappeared, turning into a pile of small pieces.

1. To clean the old foundation, it is better to use a high-pressure washer. We not only clean the surface of dirt, but also knock out all the gravel, which is weakly held in the old concrete, which means it will not give good adhesion.

2. To tie the frames with reinforcement rods, I made through holes for them in the tape in increments of 50-70 cm. For this, I used a puncher with a long drill.

3. S- and U-shaped jumpers connected with a reinforcing bar with annealed wire. My wire is thicker than usual, and the standard tool for twisting it did not fit. I had to work with pliers.

4-5. Ready reinforcement frame.

6-7. The armored belt and mesh hug the entire foundation around the perimeter, forming a closed loop.

8. On this side, the formwork is fastened in the form of supports made of metal corners driven deep into the ground.

9. And here the short support pegs are simply pressed against the bricks used as spacers.

10. Until the concrete gains normal strength, it must be kept wet. I watered it 4-5 times a day and after removing the formwork.

11-12. In some places, the distance between the old foundation and the formwork is no more than 7-8 cm. If you do not vibrate the mixture, the concrete will not fill all the voids - and there will be many pores. For high-quality concrete laying, I used an internal vibrator.

How to repair a strip foundation with your own hands - photo

© Dmitry Tokarev, Odintsovo, Moscow region.

2019 professional makeup brushes thick foundation brush flat cream...

Repairing the foundation of a house is a task that not every non-professional builder can do. The thing is that the foundation is the foundation of the house, its safety and reliability make the entire building reliable.

The reasons why foundation repair may be required may be related to errors in its design, violation of the technology of its construction process, lack of waterproofing, use of low-quality materials, etc.

Ultimately, repairs may be necessary over time when the life of the foundation is long enough and there is a risk of it collapsing and collapsing the entire building. In this case, it requires major repairs and sometimes considerable costs.

The appearance of cracks on the walls and in the foundation itself signals the beginning of destruction. In addition, obvious signs of corrosion and a change in the level of one of the sides of the foundation also indicate that it needs urgent repairs.

The best thing to do in any such situation is to strengthen the foundation. It is quite possible to do this on your own.

Strengthening and repairing the foundation in stages

First you need to make sure that it is necessary to take actions to strengthen the foundation. To do this, a lengthy study is carried out, unless, of course, the condition of the foundation allows you to delay repairs.

During the year, the growth of cracks formed in the foundation of the house should be monitored. For this purpose, a gypsum solution is used to fill the cracks, and plain paper.

It should be glued to the plaster and monitored to see whether it breaks or remains in the same condition. In the first case, large-scale repairs will be required. This “old-fashioned” method is quite effective if the gypsum sticker is not exposed to precipitation and mechanical influences.

You can also call specialists to take electronic measurements that will determine the extent of damage to the foundation.

First you need to carry out excavation work: the foundation should be dug to the very foundation. This part of the work will probably be the most labor-intensive. Buildings play a big role here.

Then, the exposed surface of the foundation should be completely freed from heat-insulating material, adhering soil and plaster. Defective elements should also be removed.

• Before proceeding directly to measures to strengthen the foundation, it must be treated with a special deep penetration primer.
• This will allow you to protect the surface of the foundation base as much as possible from the negative effects of the environment and extend the life of the repaired foundation.

At the next stage, anchors are attached to the old foundation. The holes for them are prepared at a distance of approximately a meter from each other.

The fittings are attached to them. To strengthen the foundation, it is better to use a base 12-14 mm in diameter. The metal frame is complemented by a mesh with large cells.

The cement mortar is poured into the formwork, which is assembled at a distance of about 20 cm. from the damaged foundation of the house. The process of installing formwork is described in detail here: do-it-yourself formwork.

There is probably no need to talk further about how to prepare cement mortar. It is only important to mention that the quality of the finished mortar directly affects the quality of the repaired foundation. There shouldn't be any mistakes here.

In accordance with the technology, cement mortar is prepared and poured into the formwork. The characteristics of the foundation’s operation will also depend on the quality characteristics of the concrete itself, so in this case it is better not to skimp on building materials.

When the concrete is completely dry, work is carried out to waterproof the reinforced foundation. Drainage (ring) is installed. There are several ways to waterproof a foundation: from traditional ones, like hot bitumen, to modern ones.

After all the measures to strengthen the foundation have been carried out, it is covered with crushed stone and additionally compacted with sand on top.

This sequence of work is described to eliminate very severe damage to the foundation. For less significant defects, most often, simply additional plastering of the foundation surface over a metal mesh will be sufficient.

We will give you a little advice that will definitely help you in your work.

If you decide to strengthen the foundation on your own, this must be done in the warm season, when the soil is quite soft and loose. This is mainly due to the nature of weather conditions in our country, which do not allow this kind of work to be carried out in winter.

This is also important for preserving the quality characteristics of the concrete itself.

Article provided by the StroySovety website