Does the small hollow drum need to be dealt with, and the solution to the hollow drum

Small area hollow drums, which do not need to be treated under normal circumstances.

"The wall hollow drum area is less than 400cm can not be repaired, usually, the allowable range of wall hollow drum is: single-sided wall area within 5 square meters, 1 hollow drum is allowed; If a single wall is more than 5 square meters, a maximum of 2 hollows are allowed. Check the hollow drum on the wall can be used to knock on each tile with a small iron rod, if the knock makes a crisp sound of "dong dong", it means that the wall has a hollow drum.

Does it matter how empty the rough room is?

1. First of all, it affects the appearance. Generally, the hollow place of the wall will cause cracks in the stucco layer, like a scar on the face, which is very dazzling.

2. Then it affects the use effect, loses the role of enclosure and decoration, and there are potential safety hazards. In places with large hollow drum areas, after a long time, they will fall off due to gravity, and the small loss is to smash the floor tiles and floor furniture, if there are people below, it will be serious.

3. Hollow drums will also have an impact on the later decoration. The harm of hollowing generally goes through two processes, the first is that the surface of the hollow drum of the wall is cracked, and after a period of time, once the hollow drum is stressed, the cracked stucco layer will fall off. If hollowing and cracks occur in places where the window sill and balcony are in direct contact with the external interface, the cracking will inevitably cause water seepage, which will not only reduce the protective effect of the wall, but also affect the decorative effect.

4. If the wall hollow drum is not dealt with in time before or during the decoration, it will cause a large area of cracking on the wall after decoration.

What are the reasons for the hollowing of the wall?

1. The ratio of plastering mortar is not suitable, and the amount of cement is too large, resulting in large hydration heat.

2. The mortar is still used on the wall after the initial setting time.

3. The treatment of the base layer is not clean, improper treatment (insufficient brushing maintenance, brushing layer powder) or not watering and wetting in advance, resulting in the water loss of the plastering mortar from the surface too fast, and the surface causes the adhesion between the base and the plastering layer to be low or not sticky, resulting in hollowing.

4. The surface flatness of the base layer does not meet the requirements, especially the verticality exceeds the standard, resulting in uneven thickness of the plastering layer or too thick plastering layer, resulting in surface hollowing.

5. Medium and senior plastering should be layered construction, sometimes for the progress of construction or for the convenience of saving construction drawings, so that the plastering base, middle layer, surface layer is not properly layered, the thickness of the layer is improper, and even there is no layered construction.

6. Related to the construction environment, the plastering environment is well ventilated and dry, and usually negligent maintenance leads to the loss of water in the mortar, resulting in hollowing.

7. The surface of the wall layer is too smooth, the combination is poor, and there is no separation joint for the base layer of the large area, resulting in irregular shrinkage.

If the construction master is not properly constructed or the owner is not used properly, it is easy to lead to the hollowing of the tile, when the group book encounters this situation, the owner hesitates whether to repair, so how large is the area of the hollow drum can not be repaired? Let's find out together.

1. Under normal circumstances, when paving wall tiles, the wall tiles should be firmly attached to the wall, and there should be no hollowing or cracks. However, because it is artificially constructed, it is inevitable that the wall tiles will be hollowed, so our country has formulated relevant rectification standards for different hollow drum positions and hollow drum areas.

2. Under normal circumstances, if the hollow drum area is greater than 400 square centimeters, then the hollow drum position needs to be rectified. If the hollow drum area is less than 400 square centimeters, then there is no need to rectify the hollow drum position. In addition, there should not be more than two empty drum positions in the same space.

3. If there is a large area of hollow drum in the tile, and the hollow drum area is greater than 1 3 tile paving area, then the whole tile needs to be warped off, and then re-paved. Generally, this situation is caused by improper construction by the construction personnel, so the construction personnel should bear the relevant repair costs.

4. When the tile appears hollow, it is not necessary to replace the tile, we can decide whether the hollow drum needs to be repaired according to the size of the hollow drum area of the tile. If there is a hollowing in the center of a single wall tile, or if a single wall tile has a large area of hollowing, then the wall tile needs to be re-paved.

5. In the same space, if the corner of a single wall tile has a local hollowing phenomenon, and the number of hollow bricks is greater than 5% of the total amount of tile paving, then it is necessary to rectify the hollow drum position, if the number of hollow drum bricks is less than 5% of the total amount of tile paving, it is generally not necessary to rectify the hollow drum position.

6. If you want to check whether the wall tiles have a hollow drum phenomenon, or if you want to check the hollow drum position and hollow drum area of the wall tiles, then we can use a drum hammer weighing 25 grams to knock on the wall tiles.

The above is a detailed introduction to how much of the empty drum can not be repaired, and friends in need can learn more about a spring or a file. When the tile is hollow, it is not necessary to replace the tile, we can decide whether the hollow drum needs to be repaired according to the size of the hollow drum area of the tile.

The common way to repair the hollow drum is to shovel the sand ash, refill it with quick ash, and re-batch the putty after drying.

However, some hollow drums, due to the location and other reasons, it is difficult to chisel out, such as the hollow drum between the concrete protective layer and the base layer is more difficult, some more expensive stones, the hollow drum between the ceramic tile and the base layer, and the stone damage economic loss is greater after chiseling. This type of hollowing can be solved by 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.

This kind of grouting repair hollow drum method is fast, does not damage the base, especially in the underground garage, plant and other sites, the construction process does not affect the use of the owner, is a more convenient way.

"Hollow drum" generally refers to the phenomenon that occurs between the ground, wall, ceiling decoration layer (plastering or pasting surface bricks) and the structural layer (concrete or brick wall) of the house due to the unstable combination and combination, and is named because it will make a drum-like knocking sound when striking. In particular, more attention needs to be paid to the decoration of second-hand houses and old houses. The hollow drum is extremely harmful, not only easy to loosen and crack the tiles, but also easy to appear water and smell, which is not very troublesome.

Let the Guangzhou Mud Commune teach you how to avoid this situation.

Six points to choose a good tile.

There are six precautions when choosing tiles: 1. Look at the glaze for spots, pinholes and color differences; 2. Measure whether the diagonal of the tile is equal to determine whether the tile is deformed; 3. Test the water absorption rate on the ceramic tile with water droplets, the smaller the diffusion area, the smaller the water absorption rate, and the better the quality; 4. Listen to the sound and hit the tile with your fingers, the crisper the sound, the better; 5. Weigh the weight, the heavier the weight of the same size, the greater the density, the better the quality; 6. Look at the color difference, pull out a piece of tiling of the products in different boxes, and require no color difference. No Sakura.

Be cautious when buying ** tiles.

In the market research of Guangzhou Mud Commune, many people often encounter the situation that the store sells ** ceramic tiles when buying ceramic tiles. This is generally because of two situations: one is that the merchant does the **activity because of **need to attract customers; The other reason is that the batch of products is not in stock and needs to be cleared.

When encountering this kind of tail goods tile, you should pay great attention to it, because it is tail goods, so it is generally not possible to return. If the dosage is not calculated and the bricks need to be repaired, there will be color differences due to different batches, and it is difficult to find suitable substitutes if there are quality problems.

Soak in water before tiling.

Before tiling, be sure to ensure that the tiles are soaked in water, which is done to prevent the tiles from grabbing water with the cement mortar after pasting, so as to prevent hollowing. The quality inspector of Guangzhou Mud Commune reminded that the tiles are generally soaked in water for about 2 hours before tiling, so that the tiles can fully absorb water and effectively prevent the occurrence of hollowing.

Tile acceptance to look at three times.

The construction acceptance of ceramic tile file mainly looks at three aspects, the first is to see the plane levelness, which can be directly detected with a level, and the error within 2mm is generally acceptable. The second is to look at the flatness between the tiles, and the allowable error is within the limit. The third and most important thing is to check whether there is a hollow drum phenomenon, you can use a small hammer and other hard objects to knock on the corners and middle parts of the tile, if there is a knocking sound, it is best to cut out the tile and re-paste it.

Hollow drum is a common decoration problem, it seems difficult to avoid, than to find the problem and then brainstorm to solve the blockage, it is better to pay attention to it when decorating. In fact, as long as you can do the above precautions and strictly control the quality, you can avoid this situation very well.

The above was released on 2017-01-22, the current relevant housing purchase policy is subject to the actual situation).