Why is it easier and easier for traditional cement mortar tiles to fall bricks? Why?

The reason why the traditional cement mortar tiles are more and more easy to drop the bricks: because the cement mortar behind the bricks of the tiles is unevenly wiped and then produces the hollowing of the wall, the second is that the cement mortar batch putty wall is excessively dry, and when the cement mortar is pasted with tiles, the bottom layer of the dry wall is not sprinkled with water, resulting in the wall being too quickly adsorbed to absorb the moisture in the cement mortar, thereby reducing the normal coagulation cycle time of the cement mortar, resulting in the reduction of the legal effect of the bonding. Among them, the first situation is often the occurrence of part of the wall hollow falling, and the second is very easy to cause large-scale tiles to fall, the characteristics of the traditional cement mortar and the current cement mortar have not changed.

The chemical composition of traditional cement mortar is made of concrete sand, followed by adding a certain amount of cold water, and finally mixed or mixed. At present, the cement mortar is the same or mixed with concrete, sand and water according to a certain ratio. Therefore, cement mortar in essence did not make all the changes, but it will not harm the paste of tiles, the situation of falling bricks, we should use cement mortar to paste tiles, we must ensure that the cement we choose is reasonable and qualified.

No matter what kind of raw material you use to paste tiles on the wall, the first thing to do is to solve the bottom layer, in other words, the compressive strength and flatness of the bottom layer must meet the requirements before you can paste the tiles. The water absorption of ceramic tiles decreases sharply. Because of the improvement of the technology and methods of ceramic tiles produced today, the relative density of ceramic tiles is getting higher and higher.

At the same time, the density of the tiles pasted on the wall is getting higher and higher. In this way, the porosity of the back of the ceramic tile with high density is very small, and the cement mortar can often paste the tile, most of which is maintained with the help of the equipment lock generated in the middle of the porosity of the back of the tile.

Therefore, the reduction of porosity also causes the cement mortar to be unable to stick out, and more and more bricks are dropped. floor tiles on the wall. The floor tile on the wall is to paste the tiles that should actually be used for the pavement to the wall.

Pavement tiles have a correlation that they all belong to tiles with low moisture content or even very low water absorption. The relative density of this thunder tile itself is higher, and the porosity of the back is less.

Because many materials are becoming more and more informal, the aging of the wall is more serious, the wall tiles are directly used as floor tiles, and the floor tiles are relatively thick; Directly lay wall tiles with floor tiles, the floor tiles are thicker and heavier, and the size is relatively large, the cement mortar can not bear the weight, and the current workers are becoming less and less serious, so it is easy to drop bricks.

That's because when doing it, the pores are getting smaller and smaller, which also leads to the lack of adhesion of the cement slurry, and more and more hoisting occurs.

Mainly because the construction is cheap now, so choosing poor quality cement will naturally be easier to fall off.

<>1. The base layer of the wall is not cleaned

The base layer of the wall must be cleaned to remove all kinds of dirt from the wall. If it is not cleaned up, the moisture of the tile adhesive will be absorbed by the dust and build-up deposits of the base layer when the tile is pasted, and hollowing will occur.

Even if the tile bonds well to the tile adhesive, it will come off!

2. The wall tiles are not soaked before paving

Generally speaking, the water absorption rate of ceramic tiles is greater than 10%, in order not to be absorbed by the tiles when pasting tiles, resulting in a decrease in mortar adhesion. Therefore, before pasting the tiles, the tiles will be soaked. If you stick it directly without soaking, it is likely that the tile will fall off.

3. The water absorption rate of ceramic tiles is unqualified

The water absorption rate of ceramic tiles is too high and too low, which is easy to cause the tiles to fall off. The water absorption rate is too high, the density of the tile blank is loose, it is easy to absorb water, and the tile is expanded and contracted by heat.

After that, it will lead to cracking of the surface and even peeling off of the whole tile. The wall tiles with too low water absorption rate are difficult to absorb the moisture in the tile binder, and the adhesion between the tile and the cement cannot be formed, and the chance of falling off will be greatly increased.

5. The wall foundation is not watered

In the same way that tiles need to be wetted, the walls are also wetted when tiles are pasted. If it is not wetted, the moisture of the binder will be absorbed in large quantities, which will change the properties of the tile binder and leave a hidden danger for the future.

6. The tile seam is not enough

All kinds of wall tiles will expand and contract with the change of temperature, if you do not reserve a certain gap when laying tiles, it is possible that when the temperature around the tiles changes, there is a phenomenon of mutual extrusion and cracking. Therefore, when pasting tiles, there will be a gap of 1 2 mm between the tiles and the tiles.

7. Secondary percussion

Many people find that the tiles are uneven after paving, and they will be knocked flat twice, which will cause the mortar that has lost part of its moisture to loosen, thus causing the tiles to fall off.

8. The tile adhesive is not evenly applied

When the tile is pasted, the tile adhesive on the back of the tile should be applied evenly. Some of the irregularities are to apply only the middle of the tile, or only the corners or periphery. If the application is uneven, there will be a hollowing phenomenon, and after a long time, it is easy to fall off the tile.

9. Be sure to choose high-quality tile adhesive

The tile adhesives on the market are uneven, so be sure to choose high-quality tile adhesives. Unqualified tile adhesive has poor adhesion, or poor sag resistance, or poor aging resistance, which can easily cause the tile to fall off.

There are so many doorways for seemingly simple tile pasting, and pasting tiles is not only to find a good craftsmanship but also a sense of responsibility.

The master is done, and the choice of tiles and tile adhesives is also very important!

It may be that the quality of the choice is relatively poor, and it is caused by choosing the right cement, and you can choose tile adhesive to avoid the problem.

There is a problem with the ratio, there is a problem with the selection of materials, and if you want to solve this problem, you need to pay attention to the selection of materials.

It may be that there is a problem with the ratio of cement, and some other special materials are not added to it, so you must choose the right material.

In fact, in life, the use of traditional cement mortar to pave tiles will not fall phenomenon, unless it is paved with low water absorption of tiles, or the master's craftsmanship is not good, this kind of tile will not fall off for more than ten years, if your home tiles are easy to fall, it is because of these two reasons.

It depends on whether the bricks you buy are soaked bricks or porcelain tiles, whether the cement is up to standard, and whether the master's construction is sloppy. Normally, there will be no falling off phenomenon, and it is rare to encounter tiles that have been made for more than ten years.

First, the porcelain tiles are soaked in water and the normal cement mortar stickers will not fall.

Second, the whole body bricks, floor tiles on the wall, etc. must be brushed behind the tiles produced by regular manufacturers, and then pasted with cement mortar.

3. Leave a good gap and make a beautiful seam, which can reduce the negative effect of air pressure on the mortar layer under the tile, enhance the overall strength and durability of the tile, and avoid falling off.

1. The main raw material of cement floor tiles is cement, so it can be clearly stated that the floor tiles do not contain formaldehyde. This conclusion is not groundless, the necessary condition for the existence of formaldehyde is that there are chemicals involved in chemical synthesis, and only under chemical synthesis can it be converted from gaseous state to liquid state or from liquid state to gaseous state.

2. However, in the production process of ceramic tiles, there is no need to mix chemicals, and physical means and physical materials are used to make them alone, and the conditions for formaldehyde production are not provided in this process, so the tiles do not contain formaldehyde. Compared with the floor, the hardness of the floor tiles is high and easy to take care of, but the constant temperature ability is poor, and the cooling is faster, especially before the heating and after the heating is stopped. In addition, the anti-dust of ceramic tiles is obvious, and the tiles with higher finish are easy to cause light pollution, and even some tiles will have radiation, which affects human health.

The wall of the floor tile can not only be pasted with simple cement mortar, which is not reliable, mainly because the floor tile has low water absorption, if you do not add other adhesive materials to assist, the later tile will be hollow, or even fall off.

The floor tile on the wall is generally made of 800 * 800 specifications of floor tiles, to process into 400 * 800 specifications of wall tiles to paste the wall, even if it is processed into 400 * 800 specifications of wall tiles, its weight is much heavier than ordinary wall tiles, only relying on simple cement mortar paste, is not to ensure that the tiles do not fall.

So what material should be used to stick the wall on the floor tile more firmly? The following three auxiliary materials; Water-based tile adhesives, tile adhesives, dry hanging

In the past, cement mortar tiles did not fall bricks, why do cement mortar tiles fall a lot now? What are the similarities between the use of mixed mortar to stick the floor tiles and the previous mixed mortar to stick the floor tiles; The application of mixed mortar to paste the floor tiles and the previous application of mixed mortar to paste the floor tiles, their similarities I personally think have two points: one is the characteristics of the mixed mortar itself, and the other is the characteristics of the wall base.

Regardless of which of us are, the essence of these two aspects is actually the same. It is mainly manifested in the following two conditions.

The characteristics of the traditional hybrid mortar have not changed from the current hybrid mortar. The chemical composition of the traditional mixed mortar is mainly cement sand, followed by adding a certain amount of cold water, and finally mixed or stirred. At present, the mixed mortar is the same or mixed with cement, sand and water according to a certain ratio.

Therefore, the mixed mortar does not do all the changes in nature, and naturally it will not harm the adhesion of the floor tiles and the situation of falling bricks.

The bottom layer of the wall has not been transformed. Traditionally, mixed mortar is used to stick to the wall tiles, and most of the bottom layer of the wall is dominated by the overall surface layer of mixed mortar. At present, mixed mortar is used to stick to the wall tiles, and the bottom layer of the wall is the same or dominated by cement grout.

Whether it is the overall surface layer of some special structures, there has been no other transformation before and now. Therefore, from this point of view, it will not jeopardize the sturdiness of the mixed mortar adhesive floor tiles.

The needs of the floor tile back have not changed. In other words, whether we have used mixed mortar to stick the floor tiles before, or we are currently using mixed mortar to stick the floor tiles, we must rinse the back of the floor tiles with tap water before pasting. If there is a release agent on the back of the floor tile, the release agent should be polished and polished before it is allowed to be pasted.

Therefore, from this point of view, it is not the cause of the bricks falling after the mixed mortar sticks to the auspicious paste.

Summary of the situation: through the above three points for the introduction of cement mortar, wall base and tile back treatment, in fact, you can also understand that the reason why we use cement mortar to paste the wall tiles at this stage is not related to the cement mortar and the base of the wall, and it also has little to do with the back treatment of the tile. Therefore, at this stage, after the cement mortar is pasted, the wall bricks fall off, we must first rule out the cause of the cement mortar itself, as well as the reason for the wall base layer, as well as the factors of the back of the tile.

It is because the current climate is not particularly good, and it is particularly easy to cause certain damage to the tiles, so it is easier to drop frames.

Now in the process of decoration, the hail bureau, do Shen has gradually replaced the cement mortar with tile adhesive. Just decorated, it will not fall bricks, but it is not durable, and it is easy to be pure and wanton after a long time.

This liquid is sold because some of the cement and mortar materials used now are not particularly good, and the decoration effect is not particularly good.

Yes, the operating specifications will not be dropped.

Tips for tiling.

Construction skills for floor tiling.

1. If the ceramic floor tiles are used for tiling, promise to soak the ceramic floor tiles in the shade first.

2. When pasting tiles, the cement mortar should be fully smeared on the back of the ceramic floor tiles, and then compacted with a rubber after paving. At the same time, check and correct with a level to wipe the cement mortar on the surface.

3. After 2 to 3 hours after the tile is pasted, wipe the joints with white cement, and use cement mortar with cement and sand = 1:1 (volume ratio), and the joints should be filled densely, flat and smooth. Then wipe the surface with cotton silk.

Construction techniques for wall tile pasting.

1. When the base layer is treated, all kinds of dirt on the wall should be cleaned up, and watered and moistened one day in advance. If the base layer is a new wall, when the cement mortar is dry, it should be arranged with bricks, elastic lines, and pasted surface bricks.

2. Before the formal paste, the standard point must be pasted to control the flatness of the pasting surface, and the flatness should be checked with a ruler at any time during operation.

3. Before pasting the tiles, they must be soaked in clean water for more than two hours, and the bricks should be taken out to dry for later use. When pasting, paste from bottom to top, require the mortar to be full, when the ash is lost, it must be removed and re-glued, and it is not allowed to plug the ash from the brick joints and mouths.

4. When laying and sticking, when encountering pipelines, lamp switches, and supporting parts of toilet equipment, etc., they must be cut and matched with a whole brick sleeve, and it is forbidden to use non-whole bricks to patchwork and paste. The whole or independent parts should be pasted at one time, and when it cannot be completed at one time, the stubble should be left at the construction joint or the dark corner.