How to inspect the hollow drum What to do with the hollow drum on the wall

The treatment method of wall hollowing: the base hollowing is treated as follows; 5% of the area of the tile hollow drum is unqualified, and it must be knocked off and repasted;

It depends on the size of the hollow drum area

1. The punctate hollow drum of the wall of the new house is more common, and the hollow drum can be removed until the shovel grasps the bottom surface and then treats it; Then the hollow drum gray surface depression depth is less than 30mm, you can use stucco plaster leveling, then glue bean wrapping cloth, strip bandage kraft paper and then scrape putty surface treatment; If the deeper area is larger, the whole ash should be covered;

2. The wall of the old house is hemp gray, sand gray wall or baked ash wall is more common: such as dense dot distribution, or the overall wall is hollow: it must be removed as a whole and then treated with full patches; Or directly seal a layer of gypsum board without eradicating it, and then scrape putty on the gypsum board; If it is not treated thoroughly, the whole drum may fall off in the future;

3. If the insulation wall of the new house is hollow, if you scrape putty to make latex paint, you basically don't need to deal with it, and the flower of tiling is best to remove the insulation layer, and then put the ash and then paste the brick, it will not be empty;

4. The bottom surface of the bricked wall is hollow, and there is also a barbed wire mesh brushing treatment; But this is only suitable for hollow drums that are deep and relatively solid;

Because the situation of hollowing is more complicated, what specific way to deal with it should be handled by professional construction personnel on site according to the situation;

Inspection method: 1. Check the floor tiles, tools Take a wooden stick on the spot, hold the wooden stick with two fingers, stand, and tap the middle and four sides of each floor tile one by one while walking, pay attention, be sure to check after 3 days of tiling, and the percussion sound is the same after heating and paving the floor tiles, empty.

2. Check the wall tiles, tools are made of small wooden sticks, oilers use knives (take the blade with a wooden handle), etc., tap on the middle and four sides of each wall brick, pay attention, be sure to check after 3 days of tiling, the load-bearing wall and the insulation wall, non-load-bearing wall, the sound of the riser is not the same.

3. Check whether the wall and floor tiles are hollow is mainly to check and confirm whether the drum is hollow by listening to the changes in its percussion sound.

The hollow drum on the wall is a more common quality problem when building decoration, and the hollow sound can be heard when gently knocked one by one with a small hammer, which is called the "hollow drum". Below I will give you a detailed introduction to how to inspect the hollow drum and what to do with the hollow drum on the wall, for your reference only. The hollow drum on the wall is a more common quality problem when building decoration, and the hollow sound can be heard when gently knocked one by one with a small hammer, which is called the "hollow drum".

How to inspect hollow drums

1. Look at the hand touch to check the paint hollowing.

When the home inspector checks the hollowing of the plastering wall, he observes at a distance of 8-10 meters from the wall, records the position of the hollow drum on the wall, and then touches it with his hand to determine the position and area of the hollow drum on the wall. The hollow drum must be re-plastered.

After the house inspection, it was found that there was no hollowing on the plastered wall of the house.

2. Knock to check the hollowing of the tile surface.

After observing the overall effect of the wall tile paving, the home inspector gently taps each tile on the wall with a small hammer to determine where there is a hollow drum by identifying the sound. Generally, the hollow area of the wall cannot exceed 14% of the surface bricks.

Striking the tile with a small hammer indicates that the tile makes a hollow sound, indicating that the tile is hollow. The house bathroom has a tile on the wall that is hollow.

What to do if the wall is hollow

The hollowing of the wall may be caused by the mortar not being full or not gently beating and squeezing the tiles when the tiles are paved. 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 tile is too poor, and I am afraid that the tile will be broken when tamping. 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 can inject high-strength adhesive into the hollow drum, and the empty position can be filled with full, and the adhesion and compressive resistance can meet the requirements of use. This kind of grouting repair hollow drum method time is fast, does not destroy the base, especially in the underground garage, plant and other sites, the construction process does not affect the owner use, is a more convenient way.

The above is the answer to the two questions of how to inspect the hollow drum and what to do about the hollow drum on the wall, I hope it can help you to repair the wall. In addition, the plastering of the base layer of the wall is not treated as required or the garbage of the base is not cleaned will also cause the wall to be hollow, so we should pay more attention before construction.

For a single-sided wall of less than 5 square meters, only 1 hollow drum is allowed, and the hollow drum area is not more than 5 square centimeters.

For a single wall larger than 5 square meters, a maximum of 2 hollow drums are allowed, and the area of each hollow drum is not more than 5 square centimeters.

Wall Inspection Standards:

1) The surface of the wall plastering is smooth, clean and smooth;

2) The drip line (groove) should be made for the parts with drainage requirements, and the drip line should be neat and straight, high inside and low outside;

3) The wall plastering layer and the reed base layer must be firmly bonded, the plastering layer should be free of delamination and hollowing, the surface layer should be free of ash blasting and cracks, and the external wall should not have water seepage;

4) Allowable deviation of wall plastering: the allowable deviation of the vertical bearing of the façade is 4mm, the allowable deviation of surface flatness is 4mm, the yin and yang angles should be square, and the allowable deviation is 4mm.

The phenomenon of hollow cherry blossom re-rise on the wall refers to the detachment between the surface of the wall and the base layer of the wall due to the weak adhesion of the material. The main reasons for the occurrence of hollow drum phenomenon are as follows:

1.Improper handling of the base layer: Improper treatment of the base layer is one of the main reasons for the appearance of hollow drums.

In the construction of the wall, if the base is not adequately treated, such as the surface of the base layer is loose, oil and other pollutants, resulting in the surface of the base layer can not be fully bonded with the wall engineering materials.

2.Inappropriate material selection: Inappropriate selection of wall engineering materials can also lead to hollowing phenomenon. For example, the use of low-quality glue or other materials does not bond well to the base layer, resulting in hollowing.

3.Non-standard construction: Non-standard construction is also one of the reasons for the appearance of hollow drums. In the construction process, if the operation is not done properly, such as not fully moistening the base layer before construction, using incorrect construction tools and other factors, it may lead to the phenomenon of hollowing.

4.Influence of environmental factors: In the construction process of wall engineering, the influence of environmental factors will also lead to hollowing. If the temperature or humidity of the construction environment is too high or too low, it will affect the bonding quality of the wall material.

After understanding the above reasons for the occurrence of hollowing on the wall, the following are several ways to check the hollowing phenomenon:

1.Tapping with your hands: Knock on the wall with your fingers or hard objects, if there is a hollow sound, it means that there is a hollow drum.

2.Visual inspection: You can carefully observe whether the surface of the wall is uneven, or whether there is any irregular damage on the surface.

3.Use the ridge old radar to inspect: Use the radar to inspect the wall. Although this method is more specialized, it is more complex and expensive, and is generally not commonly used.

4.Equipment testing: During the construction process, some equipment, such as power drills or hammers, can be used to check the hardness of the wall surface, so that you can judge whether the wall is hollow.

Through the above methods, the hollowing phenomenon of the wall can be checked, and the cause can be found, and then repaired immediately, which can effectively avoid more serious damage.

1. Look at the hand touch to check the paint hollowing.

When checking the hollowing of the plastering wall, observe at a distance of 8-10 meters from the wall, record the position of the hollow drum on the wall, and then touch it with your hand to determine the position and area of the hollow drum on the wall. The hollow drum must be re-plastered.

2. Knock to check the hollowing of the tile surface.

After observing the overall effect of the porcelain large grip tile paving on the wall, use a small hammer to gently tap each tile on the wall to determine which places have hollow drumming by identifying the sound. Generally, the hollow area of the wall cannot exceed 14% of the surface bricks.

Causes of wall hollowing and repairs - reasons.

Before we deal with the hollowing of the wall, we must first find the key to the problem in order to solve the problem in a targeted manner. There are several reasons why the wall is not hollow:

1. The reason is that the wall of the blank room is hollow.

During the construction process, due to the low structure and adhesion in the wall powder layer, the wall surface is hollowed out and cracked, which is often called "sand gray wall".

2. The grassroots treatment is not clean.

In the construction process, the brushing and maintenance are insufficient or not watered and moistened in advance, so that the plastering loses too much water, and the surface causes the base and the plastering layer to not stick firmly, resulting in hollowing.

3. Surface flatness of the base layer.

If the flatness does not meet the construction requirements, or the verticality exceeds the standard, it will cause the plastering layer to be uneven, resulting in the occurrence of surface hollowing.

4. Improper layered construction.

In order to be greedy for convenience, some construction teams improperly stratify the base, middle and surface layers in the plastering process, and the thickness is uneven, which causes hollowing after shrinkage.

5. Construction environment.

The plastering environment is well ventilated, but the negligent maintenance leads to excessive water loss of the mortar and causes hollowing.

8. The surface of the wall layer is smooth.

If the surface of the wall is too smooth, it will also lead to poor bonding, and when the bottom surface is laid in a large area, the separation joint is not designed, resulting in irregular shrinkage and other phenomena.

Causes and repairs of wall hollowing - restoration.

1. If a similar situation is found in the house inspection, you can ask the house inspector to mark the location of the hollow drum and cracking on the wall, and ask the developer to rectify it in time. In addition, then re-make a layer of white cement on the original wool damaged wall, the purpose is to enhance the overall structure of the wall, and the hollow part of the wall is treated with cloth, and when the environmental protection putty is draped, part of the glue is mixed to increase the structural force and adhesion of the wall.

2. Perfusion repair can also be used to solve the problem of hollow drum. For example, if the AB resin grouting repairs the crack and imitates the shooting, it is directly injected into the hollow drum with a high-strength adhesive, and then the hollow drum position is filled with full. The method of grouting to repair the hollow drum is fast, does not damage the base layer, and will not affect the owner's use much in the construction process, which is a more convenient way.

The construction of walls is a relatively important process in the process of house remodeling, and there are many aesthetic procedures. After a while, there will be hollowing when the money is given, which will greatly affect the decoration and aesthetics of the house. It also makes a lot of people feel very anxious.

Of course, if there are empty walls in the house, they must be dealt with in a timely manner. How to check for the cause of a hollow limb with a wall

First of all, there are many factors that go into how to verify the surface of an empty wall. Usually, when the undercoat is applied or the undercoat is not cleaned as needed to treat unusual walls. Therefore, it is essential to check the plaster substrate before placing the tiles.

If the pavement is applied when the pavement is applied, and if the back of the brick is used, and the hammer or soft hammer hits the cement mixture, then the back of the slab should be covered and firmly attached to the base layer of the wall.

Second,How to check for wall hollowsThis problem can be caused by the bricks being unsaturated or lacking enough water before they are laid. Usually, the tiles must be submerged for more than 2 hours before paving to allow the tiles to be absorbed, dry or completely cleaned. If the bricks are not saturated, then the mortar that absorbs water molecules will be too fast, which will make the mortar shrink and appear hollow, which will also affect the strength of the joints.

First, for some ordinary vacuum drums, it is advisable to remove the sand and then compensate with quick ash. After the dry matching bridge is dry, the dust putty is picked up again, but due to the location and other reasons, some hollow drums are difficult to excavate, and the stones of economic loss are large.

Secondly, for some wall drums that are difficult to recover, it is recommended to use the perfusion repair method. It has a fast operating time and does not damage the base, especially in underground garages, factories and other places.

Generally speaking, the area of the empty wall will cause cracks in the coating, just like the scars on the human face are very obvious, which will also affect the effect of use, and there is a certain amount of safety hidden hunger, thereforeHow to check for wall hollowsIt is to be noted.

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