What s the deal with the hollow bricks of the wall that are too loose? What should I do?

First of all, look at the loosening situation, and if you can remove it, replace it with a larger expansion screw.

If you can't take it out, just find one or two iron nails to knock it in, and use a wrench to tighten the nut again. In the past, the rural wall used white ash, the wall was too loose, just like the current air block bricks, it was very difficult to install and fix things with a drill hole on it, and it was often a small drill bit to drill a big hole. The inability to hit expansion screws on hollow walls is not necessarily a problem with expansion screws.

hollow bricks. Maybe the material is too soft, after punching, when installing the expansion screw, tighten the nut hard, and the expansion screw expands open, but the brick is broken. At this time it is not tightly fixed on this wall.

<>First of all, the flatness of the wall is not very easy to master, and the master needs rich craftsmanship and experience, which ordinary people can't do at all. Moreover, it is easy to damage the structure of the original wall during the construction of the half-wall, which may be fine in the short term, but what if it collapses in the later stage? Safety hazards.

If it's too big, you can go to the hardware store and buy some expansion screws, depending on what you want to fix, if it's heavy, you can buy some large expansion screws, remember that the drill bit is two sizes smaller than the expansion screw. At this time, if the fixation is not tight, it is not suitable to use expansion bolts on this kind of wall.

Target. You can use chemical anchors.

Make a hole in the wall, pour glue, and put the chemical anchor bolt in, and wait for the glue to solidify and then you can install it, and then the bolt will be integrated with the wall.

When smashing the expansion screw, the expansion screw should be tightened first, so that it will not hurt the fit between the thread and the nut, and after smashing in, remove the nut with a wrench, install the machine parts and then install the nut elastic pad flat gasket, and tighten it. If not a person who fits expansion screws regularly, the friction force is equal to the pressure multiplied by the coefficient of friction.

After the iron cylinder is opened, there is a taper.

The open part is like an open hand, and it is in close contact with the concrete (assuming that it is in a concrete wall) (only an abstract description), which can produce enough force points, and it can also be used on the hollow wall to play the expansion screw, which is not necessarily a problem for the expansion screw. The hollow brick may be too soft, and when installing the expansion screw after punching, tighten the nut hard, and the expansion screw will break the brick after the expansion screw.

It should be of not very good quality, and it is not a hollow brick, but also a load-bearing wall, and we should build a few holes in the wall, so that this situation will change.

It may be because the quality of the bricks is not good, coupled with the fact that the cement is relatively small and the viscosity is relatively poor, so this situation will occur. We should ask a professional master to re-do it, and use more cement, so that we can increase the viscosity.

This is when laying it did not become very tight, the workers were not very careful, there were gaps, so it was very loose. At this time, it should be processed on the outside of the wall, and a few more layers of cement will be added.

The reason why hollow bricks are too loose is that the degree of adhesion between the two bricks is not enough. At the same time, a certain knock on the wall was also carried out during the decoration. The correct way to deal with it is to contact the decorator in time to deal with it.

When the hollow brick is decorated, it can make the subsequent use of the wall safer, so how to decorate the hollow brick to be firm? Today, PCHOUSE will answer them for you one by one.

1. When using hollow bricks for decoration, pay attention to the moisture content of hollow bricks. Hollow bricks at room temperature masonry should be watered in advance, if watered temporarily, the bricks can not reach the specified humidity or the surface of the bricks has a water film and affect the strength of the masonry. The moisture content of bricks should be controlled in the range of 10%-15% during masonry (the moisture content is calculated as a percentage of the weight of dry bricks after wetting).

2. If the hollow brick wants to be decorated firmly, it is necessary to pay attention to the masonry method of the hollow brick, the hollow brick is generally built sideways, and the direction of the hole is parallel to the length of the wall. For special requirements, the holes can also be in a vertical orientation. The thickness of a hollow brick wall is equal to the thickness of a hollow brick.

Adopt Transit side masonry, and the upper and lower vertical joints are staggered with 1 2 bricks long.

3. The hollow brick decoration is firm, and attention should be paid to the use of mortar used for masonry. The mortar joints of hollow bricks should be full, the mortar fullness of horizontal ash joints should not be less than 80%, and the vertical ash joints should not appear transparent joints. When the hollow brick wall is constructed in winter, measures conducive to winter construction such as hot frying sand, water heating, steaming, and antifreeze should be taken as far as possible to ensure that the quality of winter construction is not affected.

First, the reason for the formation of tile hollowing:

1. The construction does not meet the standards.

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.

2. The tiles are not soaked in water or not soaked enough.

Tiles, especially glazed tiles, are not soaked in water or soaked enough before they are laid. It should be soaked in water for more than 2 hours, so that the tiles can fully absorb water, and then take out the shade to dry or wipe the clear water.

3. The paving mortar is not full.

In order to save cement mortar, or to save time, the mortar is not full or the tiles are not gently knocked and squeezed compactly.

Second, the tile hollow drum treatment method:

1. First take out the hollow drum tile, and then clean up the base layer and the back of the tile, it is recommended to use fast and good anti-mildew super sealing structural adhesive or use fast and good strong liquid nail 300ml to hit the back of the tile, and use multi-point distribution as well. Finally, level with a rubber hammer.

2. Construction method:

Base surface treatment: Remove oil, dust and loose objects from the work surface, clean tile crevices, and ensure that there is no debris and water accumulation.

Stirring: Pour the dry powder into a container containing 27%-29% water in a certain proportion, stir at low speed with an electric mixer, stir while pouring the powder until the thick slurry (like paste) with no granulation and precipitation is uniform and free of granulation and precipitation, and then stir for 1-2 minutes before use.

3. Caulking: Use a professional caulking tool to completely press the caulking material into the gap diagonally, and pay attention not to leave it blank. After 10 minutes, wipe off the caulk from the tile surface with a damp sponge or cloth.

4. Cleaning: After the caulking material is dry, use a wrung out wet sponge to clean the surface of the tile. Try to avoid strong direct sunlight for 3 days after construction, and it is recommended to sprinkle and maintain the construction of the caulking material every day for a week.

Question: Many wall tiles between my kitchen wall cabinet and the base cabinet have hollowed out, and some of the wall tiles have been about 2 mm away from the wall. Excuse me, experts, is it time for me to plane the wall tiles?

In addition, if the wall tiles behind the wall cabinet are also hollow, will it cause the cabinet to fall off? Answer: According to Mr. Xu's description, the hollow drum of the wall tiles has developed to the extent of loosening and peeling off the wall, and may fall off at any time.

As for the second question raised by Mr. Xu, it is difficult to determine whether the wall tiles behind the cabinet are hollow, and whether the hollow drum will cause the wall cabinet to fall, mainly depends on the installation and fixation strength of the wall cabinet. If the wall cabinet does not shake or loosen, considering the impact on life and economic expenses, the wall tiles behind can not be replaced temporarily. In addition, when installing wall cabinets, cabinet manufacturers will consider connecting wall cabinets to the wall base layer and bearing the weight of wall cabinets, so Mr. Xu does not need to worry too much.

Han Haitao, director of Kuoda Decoration Engineering Department.