How to solve the situation of hollow tiles when renovating an old house?

If there are hollow tiles during the renovation of the old house, knock off the hollow bricks, re-level the walls and then apply tiles.

First, the reason for the hollowing of tiles.

First of all, let's analyze the reasons for the hollowing of wall tiles. First of all, if the tile with a certain water absorption rate is not soaked before paving, after paving, in the process of cement mortar coagulation and strength rising, the tile will absorb its moisture, and the brick surface will be hollowed out due to the tensile force of the cement mortar. Or because the workers do not leave a joint when laying the wall tiles, the thermal expansion and contraction of the tile and the base layer are inconsistent, and the thermal expansion and contraction of the tile leads to hollowing and cracking.

The back of the tile or the base layer is not cleaned, and there are substances such as dust or release agents that affect the bond strength, resulting in hollowing of the wall tiles. Another reason for the hollowing of ceramic tiles is the delamination of the waterproof brushed layer of the wall, the paving of the pillars wrapped by the large core board, the simple paving of tiles outside the flue and other non-standard wall treatments will lead to the hygroscopic expansion of the tiles in the later stage, resulting in hollowing.

Second, the treatment of tile hollowing.

1.The tile corners are empty. If the corners of the wall are empty, remove the gaps around the tiles and pour them with thinner cement, patting the tiles as they go so that the grout can penetrate completely. This treatment saves time and effort and is not easy to damage the tiles.

2.The tile is hollow in the middle. In this case, it is necessary to pry this tile off and re-lay it.

Specifically, it is necessary to open the tile from the middle part, not directly from the middle. You can start by using a small rhinestone to make a hole, and then use a tool to slowly spread it around and pry open the tiles, so as to avoid damaging the surrounding tiles.

3.If there is a hollow drum in a large area with a paving area of more than 1 3, it is necessary to pry off all the tiles of the entire surface and re-pave. Usually this large-area hollowing drum is caused by improper construction, and the construction party has to bear the cost of tile damage and artificial auxiliary materials.

4.If the hollowing degree is severe, and the tile is completely loose or even falling off, it means that the cement mortar layer under the tile is loose and "delamination" occurs with the wall foundation (or ground base). At this time, you can use a shovel and other tools to clean the cement mortar layer, and then re-apply the cement mortar and lay the tiles.

5. The degree is relatively light and the location is biased. If the tiles on the wall and floor are slightly hollowed out, it does not affect the installation of cabinets, mirror cabinets, showers, water heaters, etc. , the location is also behind the cabinets, base cabinets and other furniture.

At this time, the hollow tile is not easy to fall off when it is pressed by the cabinet board, and it can also be considered not to be treated.

3. How long does it take for tiles to fall off when they are empty?

Knock on the wall tiles first to see if they are sticky. There are generally two cases of tile hollowing. One is that the cement connection layer between the original wall tiles and the wall surface has been separated.

If this cut-out is done by hand, the tiles will fall off. There are also cases where the wall tiles and cement are firmly connected, but the cement and the wall itself are hollowed out. As a result, large areas of the wall were hollowed out.

In this case, the wall tiles can fall down and hurt people at any time. It is recommended to ask a professional master to remove the original tiles and redo the priming immediately.

First of all, the original cement layer must be removed, and then the wall must be kept dry and smooth, and in the renovation and decoration, you can choose cement mortar to pour, so that the installed tiles will not appear hollow.

You can knock off the original tile, and you can choose the tile adhesive when laying the tile, which can solve the situation of tile hollowing.

First, the reason for the hollowing of the tile.

1. Not standard.

The plastering of the base layer of the wall is not disposed of as required or the garbage of the base layer is not cleaned up. Before tile paving, check whether the plastering of the wall base meets the requirements, and the wall base debris, dust and must be cleaned; When paving, the back of the tile is covered with cement mixed mortar or 107 cement slurry and taps the tile with a hammer handle or soft hammer to make the cement grout crowd the back of the tile, and then press hard to make the tile firmly combined with the wall base.

2. Not soaked in water.

Not soaked in water or not soaked enough before paving. Tiles (especially glazed tiles) should be soaked in water for more than 2 hours before paving, so that the tiles can fully absorb water, and then take out the shade to dry or wipe the clear water. If the brick is not saturated with water, it will absorb the water in the mortar prematurely, resulting in the mortar shrinkage and hollowing, and it will also affect the strength of the paste.

3. Not full.

When the tile is paved, the mortar is not full or the tile is not gently knocked and squeezed compact. It's a case of either cutting corners or cutting corners: to save cement mortar, or to save time.

There is another situation that mostly occurs when contracting labor and materials, that is, the quality of the tiles is too poor, and I am afraid that the tiles will be broken when tamping.

2. Processing. It can be solved using the method of perfusion repair. The AB resin grouting repair of some engineering crack treatment centers can inject high-strength adhesive into the hollow drum, and the empty position can be filled with full adhesion and compression resistance.

House world decoration.

Fulfill all your imagination of home!

The hollowing of tiles is a thing that we all encounter many times. In the case of hollow tiles, although there may be no problem in normal times, the tiles with hollow drums are not able to withstand the force. Therefore, when in use, there are still great limitations to the appearance of hollow tiles.

The situation of hollowing tiles can only be remedied. Generally speaking, there are two ways to remedy such a situation, so let's share it with you.

Method 1

First, check the floor tiles in the entire store or room to see if the tiles are arched individually or in large areas. When inspecting, you can use to tap the tile, if the sound is empty, it is already hollow, that is, the tile has been separated from the cement layer. Such tiles can easily crack if they are barely pressed down.

Therefore, it is necessary to pry up the arched tiles, re-pavement, and if there are a large number of hollow tiles, they should simply be re-paved in their entirety.

First, the joint between the arched tile and other tiles is sawed with a cutting machine (there will be a lot of dust when cutting, so you need to keep adding water to the cutting machine), you should be very careful to lift the tile, the action must be light, otherwise it is easy to cause the tile to crack.

2. Scrape off all the cement mortar that sticks to the edge of the tile. Treat the cement layer under the bricks, plane off 1-2 cm and clean it up.

3. Floor tiles: 1:2 - 3, the cement number of cement is cement.

In addition, if white cement is used, be sure to use 108 glue, which can make the cement and floor tiles tightly bonded.

Fourth, the cleaned tiles are re-paved, flattened, and then reinforced with a caulking machine after the cement is completely dry, so as to avoid the phenomenon of upturned and cracking of the floor tiles.

Method two

Grouting fills the void. Advantages: time-saving, labor-saving, no waste.

Disadvantages: It is only a remedy, which alleviates the hollowing phenomenon to a certain extent.

First, use a paper cutter to clean the grout. After removing the grout, it is obvious that you can find the hollow drum, and the paper cutter can go very deep. When using the paper cutter, you can pay attention to remind the workers not to scratch the tiles.

And good cement slurry, note, just cement slurry, no need for sand, sand particles are large, not conducive to grouting, to be thinner. Place the cement slurry in the brick joints. Use a small shovel to make gaps to facilitate the entry of the grout.

The cement slurry is very thin, mainly through the water carrying the mud into the tile underneath, the water penetrates into the sand base, and the cement stops on the surface of the sand base, thus repairing the hollow drum. Until the cement slurry no longer seeps, it will take about an hour to do it slowly. Cleaning of grout, caulk – fill with wet caulk by hand.

Caulk – Dry with dry caulk. After filling the void, it is protected with a cardboard box to ensure that the cement cannot be stepped on before drying.

Summary:In the above, we have introduced the remedy for the hollowing of tiles. Generally speaking, in the case of hollowing tiles, we can choose to warp the tiles in one piece, and then fill them with cement.

However, this method is very large, so it is generally not recommended. Another method is to fill through the brick joints, which is not only very simple, but also does not need to pry the whole tile directly and so troublesome and wasteful.

Reasons for hollow floor tiles:

1. The surface of the base is too smooth, the base layer is not watered or not watered enough before paving, and the moisture in the cement mortar is absorbed by the base layer and affects the cohesion;

2. The deviation of the flatness of the base layer is too large, and the different thickness of the plastering will lead to inconsistent shrinkage.

3. The tile is not soaked in water for enough time or the water film is not dried;

4. The pasting mortar is too thin and the paste is not compact;

5. Move the tile after the initial setting of the pasting mortar;

6. The mortar at the corners of the tile is not full, causing hollowing;

7. The door and window frame edge is not tightly sealed, which causes loosening during the opening process and produces hollow tiles;

The solution to tile hollowing:

If you find that a single floor tile is hollow and exceeds the standard, you can ask the decorator to pry the brick open and repavement. The method is to take out the hollow floor tiles, which can be lifted straight by using suction cups, and then paved according to the requirements of the specification.

If only a small part is loose, you can clean up the brick joints, fully moisten the ground with water, use cement slurry to glue, and gently hit with a glue hammer to make the cement slurry infiltrate, and press it dry with a heavy object after infiltration;

If it is more than half to re-process, the rubber hammer gently hits the floor tiles, so that the floor tiles are completely loose, clean the gaps, take out the floor tiles, chisel the ground and paste it again;

Suggestion: In general, this is the economic loss caused by the construction party, and the construction party should bear the damage cost of floor tiles and the cost of labor accessories.

There are many reasons for tile hollowing, such as the separation of ceramic tiles from the base layer due to the pasting of materials, which causes hollowing problems; When using ordinary cement mortar to paste wall tiles, the ratio in cement mortar is incorrect; The back of the tile was not treated cleanly.

People often tend to ignore the hazards of hollowing, and how to deal with hollow tiles is also very important. Let's focus on the dangers of hollow drums. 1. The tile at the hollow drum is not forced, and it will crack when it is subjected to greater external force in the future.

2. The hollow drum may cause the tile to gradually expand the scope of the hollow drum in the future, and finally the tile will be warped or fall off. 3. If the wall is hollow, it will be very difficult to drill holes in the wall in the future, and the tiles may be broken. 4. The hollow drum will cause water to accumulate and rot and stink in the bathroom floor, and some people can't find the reason after looking for a long time.

1. Choose a tile with a deep texture on the back.

Ceramic tiles will be designed on the back of the design into a grain shape, this is to make the tile and the wall can be better close contact, easy will not fall off, it is worth noting that the deeper texture can ensure that the tile and the cement mortar layer are partially detached but will not fall off, so you should pay attention to it when purchasing, try not to choose the back of the tile with too shallow texture.

2. Choose tiles with low water absorption.

If you want to avoid the hollowing of the tile, a good way is to avoid the purchase of tiles with too high water absorption, when the tile is purchased to understand its water absorption, the main detection method is to drop water on the back of the tile, to see the speed of infiltration after the water is dispersed to judge, the slower the water absorption, the greater the density of the tile, on the contrary, it means that the density of the tile is relatively sparse, the water absorption rate is relatively high, so the tile should try not to choose, because the water absorption rate is too high, it will be easy for the tile to absorb water and expand and the hollow drum falls off.

3. The effect of choosing Zhongsha is good.

Another way to avoid tile hollowing is to choose good sand, generally sand can be divided into extra-fine sand, fine sand, medium sand and coarse sand according to the thickness of the four kinds, the coarser the sand out of the cement mortar strength will be higher, but you know, not the higher the strength of the representative of the better, too fine sand is not a good choice, because the adsorption capacity is relatively poor and difficult to paste the tile, so it is recommended to choose the sand in the home decoration, because its particle thickness is more moderate and suitable for use in the cement mortar as an auxiliary material for pasting tiles.

4. The ratio of cement and sand should be moderate.

In home decoration, the general floor tiles are dry paved, and the cement and sand are mixed with a small amount of water in a ratio of 1:3. The general wall tiles are wet paving, and the ratio of cement and sand is according to 1:

The ratio of 2 is more suitable after mixing with water. Too high a cement mortar ratio will lead to excessive water loss after drying, which will lead to the hollowing of tiles.

At present, the more common cement on the market is divided into 225 and 525 four types, different types of cement will adapt to different concrete needs, in the home decoration generally use 325 cement will be better, because in the home decoration cement does not need much bearing capacity, so do not have to choose high-grade cement, and in addition, in the purchase of cement to pay special attention to its quality, to avoid the selection of inferior products as much as possible.

One of the reasons for the empty barrel caused by improper construction is the uneven skills of the tile masters. The most important improper construction is the application of the floor tiles around the mortar and the floor tiles in the middle of the coating mortar. This situation is generally not checked out after pasting, only when the mortar moisture is lost, the ground base is completely dry, there will be a large number of floor tiles in the center of the hollowing phenomenon, the main reason is that the brick laying master in order to save mortar and process.

<>In addition, there are some empty barrels in the surrounding corners, which are mostly technical problems of bricklayers or mortar leakage in the surrounding corners. Thermal expansion and cold contraction lead to the thermal expansion and cold contraction of the drum hollow is an inevitable natural phenomenon, and the hard floor tiles are squeezed too tightly, and the drum will be hollowed out or even arched and burst. The joints of floor tiles are generally about 2mm, and the joints of home decoration can be considered between 2mm and 3mm.

When tiling, try to choose the season with a small temperature difference, and avoid doing tile projects in autumn and winter. In autumn and winter, the temperature difference between morning and evening is large, and the cement mortar on the back of the floor tiles is not completely dry but suddenly cools down, and it is easy for part of the mortar to freeze. During the day, the temperature rises and the mortar freezes and melts, which can easily lead to the accumulation of some areas of the mortar and the hollowing of some areas, which in turn leads to the hollowing of the floor tiles.

The floor tiles have obvious hollowing during the percussion process, but the paste is firm and cannot be removed. There are two ways to do this.

If the hollow drum is in the corner of the wall, you can choose the "grouting" method for repair. Clean the gaps around the floor tiles, grout directly, and tap the floor tiles while grouting, until the sound is low and full. If the hollow drum is in the center of the floor tile, it can also be repaired by grouting in the early stage, if it is ineffective, the whole brick can only be carefully smashed down, and the spare brick can be repaired.

After the tile is removed, there is a large amount of solidified mortar on the back, in this case, it depends on whether the plaster on the back of the tile can be removed, and you can choose the method of soaking in water. After removal, add anti-mold sealant to the mortar and apply it again. If there is a large amount of plaster on the back of the tile that cannot be removed, it can only be discarded and used as a spare floor tile.

After the tile is removed, there is no mortar on the back, and the tile does not need to be treated specially, but the original mortar base layer needs to be shoveled off or part of the hole to remove hair, so as to re-grout or apply mortar. Normal tapping can be leveled.