Why do floors crack in homes?

I don't know if you have ever encountered a cracked floor, my floor has not yet appeared a large crack, but the floor of my school dormitory has cracked several times, not only in our dormitory but also in other dormitories. I was a little confused as to why the floor was cracking, because we didn't hit it with anything but it still cracked, and some of the floors were warped and eventually cracked. I have searched for related problems, some say that the floor is warped and finally cracked due to thermal expansion and contraction, and some say that it is caused by poor workmanship.

I think that the cracking of the floor due to thermal expansion and contraction is one of the reasons, and of course, whether the floor is carefully made when laying the floor, it may also lead to whether the floor will not crack. If the floor is not properly laid during the renovation, the floor will also warp and eventually crack. Therefore, we should also pay attention to whether the project is meticulous when decorating.

So how should the broken floor tiles be repaired? I believe many friends want to know this answer. I think it can be repaired or resurfaced depending on the degree of cracking.

When we find that the floor is warped, if it does not affect it, then we can leave it alone, and wait for the floor to crack and repair according to the size of the cracks, and the small ones can be filled with cement, and the floor is normal after the cement is dry. Once the crack is relatively large, there is no room for repair, and I think this floor can be removed and resurfaced.

In short, I think that floor cracking is a very common thing, and if you want to prevent floor cracking, then I think you can lay the floor well during renovation, and clean up the air bubbles in the cement to place the floor to warp and crack. It is also possible to choose some *** floor tiles, which can also prevent floor cracking due to inferior flooring. When it breaks, don't panic, if you can't do it, you can find a professional repairer to repair it, and if you can, you can repair it yourself.

Of course, you can also buy some floor glue for prevention. Hopefully, my sharing can help you all solve the problem.

After a long time, the heat expands and contracts, and there is not enough space.

I think it has to do with weather reasons, human reasons, time reasons, environmental reasons and quality reasons. Therefore, when this situation occurs on the board, we must find a professional to help us solve it, because we can't solve this situation ourselves, so we must look at it rationally.

This is because after a long period of use, coupled with severe wear and tear, and possibly due to corrosion by rain, it will lead to cracking.

That's because the temperature of hot and cold is different, and secondly, there is a lot of pressure, and the flatness is also different.

First, the house with cracks will not collapse, if it will collapse, it is impossible to repair it, so many quality inspections have already been found out, so don't worry.

Second, the treatment of existing cracks.

Cracks caused by temperature changes are difficult to repair, but there is no danger of a house collapsing. In order to avoid the occurrence of such cracks, it is necessary to solve the problem by solving the difference between the line swelling of the two different materials of the roof and the brick wall. Generally, the common method is to do a good job of roof insulation.

Due to the cracks caused by the insufficient stiffness of the masonry, the brick wall will show flat bending, and at the midpoint of the bending length, there are often horizontal trending cracks. In this case, reinforcement measures should be taken. Pure cement slurry can be injected into the cracks by pressure grouting, and then methods such as adding pilasters or reinforcing the walls between windows can be adopted.

Walls with such cracks are in danger of collapsing due to cracks caused by insufficient masonry strength. Take reinforcement measures. Generally, it is reinforced by adding pilasters or using steel structure.

Due to the uneven settlement of the foundation, the cracks in the brick wall are located in different directions, and the positions and trends of the cracks caused by the lack of strength and stiffness of the wall columns are different. That is to say, the cracks caused by the uneven subsidence of the foundation do not cause the strength or stiffness of the wall columns, and are repaired with cement mortar after the settlement is stabilized.

If the stiffness and strength of the wall column components and the house structure are sufficient, then the wall cracks caused by the uneven subsidence of the foundation do not need to be reinforced and reinforced, as long as the cracks are repaired.

3. Crack repair method to improve the strength of the wall.

The crack repair method to improve the strength of the wall adopts the pressure grouting method. One is to use water glass mortar as the binder, and the other is to use 107 glue polymerization cement slurry as the binder. This is done by pouring adhesive into the cracks in the brick walls with an air compressor to reglue the cracked walls together.

Water glass mortar is made of alkaline sodium water glass, slag powder (water quenched blast furnace slag grinding), sand and sodium fluorosilicate in a certain proportion, divided into No. 1 slurry and No. 2 slurry. No. 1 mortar is used for brick wall cracks are very small, at this time the water glass mortar is not easy to fill tightly, you can make 25mm holes along the cracks, each hole is about 25mm apart, and the water glass mortar is poured into the holes to form a pin key to resist the shear force. No. 2 slurry is used for large cracks in the wall, and the water glass mortar can be directly pressed into the joint, and the cracks can be glued into a whole by relying on the water glass mortar.

107 glue polymerization cement slurry is prepared with No. 425 ordinary cement, sand and 107 glue (polyethylene alcohol formaldehyde) orchid material in a certain proportion. The purpose of adding 107 glue is to enhance the adhesion of cement mortar, improve the suspension of cement, and delay the cement settlement time, but the larger the amount of infusion, the strength will be reduced accordingly. Three slurries are formulated according to the width of the crack.

When the crack width is in the thin slurry, when the crack width is 1 5mm, the thick slurry is used; Crack width in 5 15 mm with mortar.

If you feel that the floor is cracked and the house is sinking significantly, then the house should be repaired immediately and you should not be a person anymore, if it is just some relatively small ones, this is normal and there will be no danger.

For wall structures, the floor slab and masonry play a role in mutual constraints. Therefore, when the outside temperature changes, deformation may occur between the ground and the masonry due to the temperature, and the masonry itself has a limit value of traction and shear force. When the strength of the perceived temperature exceeds this limit, cracks will occur in the masonry, which is called temperature cracking.

The foundation is not flat and firm, and the foundation is not deep. Rural houses basically have to build four layers of steel bars, two layers of foundation, three layers of mortar bricks, build two tendons on the doors and windows, take out three layers of bricks and two layers of mortar from the sand poured into the windows, and other walls are closed with mud, which can also ensure the liquefaction of the wall after completion and avoid cracks in the wall, so there are some things in life that we can only know through practice, as for this crack, ELA should not have an impact on life. If it is a house built with sand and cement, how can it last for decades?

Strengthen guardianship between them.

Finally, self-built houses should not be designed and built according to the experience of local craftsmen, they should be built according to specifications, or first observe the surrounding houses, understand the characteristics of the soil, build a house in one year, live in a few years, carelessness is not good, and the safety of the family is all at home. Some poor soil also needs to be stacked, generally 6 meters deep and 2 meters deep. The foundation is not strong, causing uneven settlement and cracks in the walls that cannot be repaired, and there are also problems with used bricks, such as cement bricks or other lime sand piles.

In the construction process, it is necessary to add steel bars to the bricks, which are generally not added by private individuals, but this situation is relatively rare on red bricks.

I have a friend from Guizhou who I met while working in Guangdong, and we have a good relationship with each other. One year, he came back early. After a period of contact, he learned that he had gone home to build a house.

There are mountains there. The house is built on the hillside, all the foundations are dug manually, and the infrastructure of the house is directly related to the quality of the eugenic home. The crack is straight, but not messy.

This situation is due to the fact that not enough mortar is used between the walls and the concrete columns.

In this case, it is likely that there is not enough space left when the floor is laid, or it is possible that the floor heating is turned on, or there is water under the floor, or it is often exposed to direct sunlight, which causes the floor to be heated.

Top 3 Causes of Tile Cracks1More often than not, cracks can be the result of weather changes and usually occur after a long period of time. This can be a general form of wear and tear, with a decrease in the adhesion of the tile to the substrate over time.

2.Improper installation of floor cracks can also be caused by poor workmanship. Especially if the installation is not too long, the appearance of cracks can be a sign of improper installation.

So, do your research with due diligence and make sure you're working with a reputable flooring company. In addition, the type of flooring chosen may not be suitable for use in certain rooms. It is advisable to check with your flooring contractor to see if the recommended flooring products are suitable for use in areas such as kitchens and balconies.

Ask the sixth floor of the old building.

Will it be caused by any change in the foundation of the building?

This one won't. Ask how to determine what is causing this.

Question: This is the first tile cracked.

And it's a large area.

You don't need to ask a professional to help you take a look.

It may be because the quality of the floor is not very good, or it may be because it is not paved when it is paved, or it is affected by external forces, so it will burst.

It may be because of the thermal expansion and contraction, so the floor suddenly bursts, it is possible that the floor is installed in winter, so it is easy to burst in the hottest time in summer.

It is likely that the quality of the floor is not particularly good, or because the temperature is too high, or it may be caused by the failure of the floor heating.

The floor will crack due to the internal moisture content of 30%, and the moisture will also cause the floor to dry and shrink, which will directly cause the gap between the floors to become larger. The choice of solid wood flooring is a very important link. When choosing a floor, it is best to go to some large specialty stores, with excellent quality and sufficient supply.

Many people think that the wider the hardwood floor, the better, but that's not the case. Generally, the wider the solid wood floor, the greater the probability of deformation, so the floor should be short but not long, narrow but not wide. The smaller the size, the greater the resistance to deformation.

The moisture content of the floor is important. The moisture content of the purchased flooring must be consistent with the local equilibrium moisture content. When you buy flooring, you have to measure the moisture content.

If you don't have a moisture meter, you won't buy a board for it. The method of measuring the equilibrium water content is simple. First, the moisture content of the purchased varieties is measured in the exhibition hall, and then the moisture content of the purchased varieties of wood floors is detected unpacked.

If the difference in moisture content between the two is only +1% 2%, it is a qualified product. If it is very serious, it is recommended to replace the cracked part, contact the buyer, and buy the same model for repair. But if it's a small part, and the owner doesn't want to make a big noise, then you can make a paste with sawdust, alum, toner, and fill in the cracks.

After drying, sandwork with water sandpaper and then apply varnish. The floor must be protected from moisture before laying to ensure that the room is ventilated frequently.

It does not affect the use function, and can stay for a long time, such as the moisture content of the wooden floor and the relative humidity balance in the air, and the reduction and resurfacing scheme is adopted according to the situation; Or completely disassemble and adjust the segmented joints and reserved length joints of adjacent plates. There is a small amount of crack in the paint film, which can be repaired by painting repair. If the cracked area is large, it can be sanded and repainted.

If the paint film of a single piece of wood floor has a long cracking time, a single piece can be used instead of a single piece of wood floor. When the wood floor is exposed to sunlight or long-term wind, the wood floor dries and shrinks, resulting in cracking of the paint film; Cracking of the paint film due to the expansion of the wooden floor, or cracking of the paint film due to the expansion of the wooden floor and squeezing each other.

We did not pay attention when installing, which caused the wooden floor to be pushed directly to the wall, resulting in the inability to release the expansion force of the wooden floor, and eventually causing the wooden floor to crack or even directly warp. The wooden floors did not take care of the stubble. Especially the wooden flooring installed in our room, it will come into contact with the rest of the interior floors as usual.

For example, the bedroom is covered with wooden floors, and the dining room is tiled, so that there are joints between the wooden floors and the dining room tiles. For this stubble part, also leave a gap. There is no indwelling gap, and there is no dilation.

It can be cut along the perimeter of the wooden floor. That is, to ensure that there is enough expansion gap between our walls and the wooden floor, which varies according to the material of the wooden floor. For wood floors, stone and ceramic tile joints, it can also be used to cut joints.

Answer: Hello, 1. Dry after absorbing water. Because the weather is too wet and cold, the floor has made its own measures to remove moisture, causing the moisture in the air to be absorbed by the floor, causing expansion, and the air will crack when it dries again. 2. Long-term exposure.

Since wood floors contain a certain amount of water, prolonged exposure to sunlight will lead to shrinkage, which will lead to cracking of the floor. 3. The pavement is unqualified. Before laying the floor, the base layer is not leveled, resulting in a reduction in the ability of the wood to hold nails, and the installation of the keel is loose, and walking on it for a long time will break the plank.