How to inject grouting material into the hollow drum ground, and what materials are used for the gro

Construction steps of hollow drum microporous grouting treatment technology:

1. Statistics of hollow drum parts:

Before construction, a comprehensive and detailed statistics were made on the ground and wall hollow drums on the site, and the hollow drums were clearly marked on the drawings by striking with a small hammer.

2. Drilling positioning:

The laying of the hole position is very critical, the selection of the hole position has a great impact on the grouting effect, and the drilling position of each hollow drum should be designed and positioned by the personnel with rich construction experience.

3. Permeability test:

Before using a high-pressure pump for grouting, the permeability test of the borehole should be carried out to ensure the permeability of the borehole and lay the foundation for smooth grouting.

4. Crack sealing

In order to ensure that the grout does not flow out when the grouting is pressurized, the plate joint should be closed before grouting.

5. Pressurized grouting:

With a special grouting nozzle and the selected low-pressure or high-pressure grouting equipment, Zhengxiang AB-1 grouting resin is evenly pressed into the grouting hole.

6. Check the fullness:

Tap with a small hammer while pouring grout to check and judge the flow direction and fullness of the slurry.

1. First of all, you need to determine the area of the hollow drum, you can use a small hammer to knock on the ground, and then mark it clearly on the drawing to facilitate the subsequent construction.

2. Take the method of drilling and positioning, and drill holes at the position of each hollow drum, which requires experienced personnel to operate, because the position of the hole will have a great impact on the grouting.

3. Then it is necessary to test the air permeability of the drilled holes to ensure the air permeability of each hole, and to ensure that the grout does not flow out when the grouting is pressurized, and the plate joints need to be closed.

4. Use a special grouting nozzle for grouting, and then cooperate with low-pressure or high-pressure grouting equipment to inject cement slurry into each hole, and it is necessary to use a small hammer to knock on the grouting to observe the flow direction and fullness.

Cement glue. Punch holes in the hollow drum position of the concrete floor, insert the grouting nozzle, pour the grouting material into the hollow drum area four to six times, and after the construction is completed, check whether the hollow drum area is full of pouring. This patching method is simple and fast, and does not affect people's normal use.

Cement should be preferentially selected high early strength, high heat of hydration and small dry shrinkage value in the process of coagulation and hardening of ordinary Portland cement, cement strength grade should not be lower than the grade, good stability of the national unified cement. It is strictly forbidden to mix cement of different varieties and different strength grades, and it is strictly forbidden to use expired, damp and agglomerated cement, or cement with poor stability. The sand should be medium coarse sand, because the total surface area of medium coarse sand is moderate, and the particle gradation is good, which is conducive to ensuring the strength of the mortar, but the mud content of the sand should not be greater than 3%.

Precautions for floor laying.

When laying floor tiles, we should pay attention to their specifications, and choose the appropriate floor tile specifications according to the area of the laying area. If you choose small floor tiles in a large area, it will make the whole space look more crowded. On the contrary, if you use large floor tiles in a small space, then it will give people a sense of incongruity.

If it is used for floor tiles in the living room, then it is best to choose vitrified tiles. Because they are hard-wearing and bright, and most importantly, they are easy to clean. Some people like to decorate the living room with antique bricks, although the decoration effect of this antique brick is good, but it will be more difficult to clean.

The above content refers to Encyclopedia - Hollow Drum.

Encyclopedia - Chemical grouting repair.

Hello, glad to answer for you. About the ground stone hollow drum why can't be poured into the pulp phase return hall information: if it is a hollow drum in the middle, and the edge is tight, it can't be poured in.

In addition, if the area of the hollow drum is large, then even if it is poured in, it is difficult to achieve the effect, and there must be a certain gap as a guarantee, and the gap is too small to be poured in. This kind of "method" is generally a way to fool people, and if you want to solve the problem fundamentally, then you must replace the hollow floor tiles. Additional Information:

Floor tile grout does not solve all hollowing problems. After the floor tiles are laid, we can use a small hammer to gently tap on the surface of the bricks, and Zheng Ye listens to its sound. If you hear the sound of clattering, it means that the floor tiles in this position are hollow, which may cause them to fall off in the future, and there are certain safety hazards.

Summary. The ground hollow drum grouting repair scheme is drilled at the position of the concrete ground hollow drum, the grouting nozzle is inserted, and the grouting material is poured into the hollow drum area in four to six times. This patching method is simple and fast, and does not affect people's normal use.

The ground hollow drum grouting repair scheme is drilled at the hollow drum position of the concrete floor, the grouting nozzle is inserted, and the grouting material is poured into the hollow drum area in four to six times. This repair method is simple and quick, and it does not affect the normal use of orange trillions by the people of the sails.

Expansion: What are the reasons for the formation of hollow drums 1. The key point of non-standard treatment of the grassroots is that the plastering of the grassroots is not carried out according to the requirements, or the grassroots debris is not cleaned up. Before tile paving, check whether the base plastering meets the requirements, and the wall base garbage and dust must be swept clean; When paving, the back of the tile is smeared with cement mortar, and the professional industrial and silver friend debater is used to tap the tile, so that the tile and the wall base are closely combined 2, the tile is not soaked in water before paving, and the soaking time is insufficient.

The tiles should not be soaked for less than 2 hours before they are laid, and after the tiles are filled with water, they should be taken to a cool place to dry. If the water content of the brick body is insufficient, it will absorb the moisture in the mortar in advance, causing the mortar to shrink and hollow, and it will also weaken the adhesion 3, the cement mortar is not full when the tile is paved and the mortar is not enough or not squeezed firmly, this phenomenon is not perfunctory or shoddy. In addition, it appears in the all-inclusive process, the quality of the tiles is inferior, and the tiles are afraid of breaking when they are tamped.

Summary. In this case, it is easier to deal with, first of all, it is necessary to break the hollow drum area with something, and then it is necessary to polish this part of the area flat, and then clean up the debris, and then pour it with the adjusted cement, the best area should be larger, so that there will be no uneven places. Now if the cement floor is leveled, in fact, many people choose to use self-leveling to do, this kind of ground is relatively flat, and then it is not easy to damage, and the current ** is not very high.

How to deal with floor hollow drum grouting construction steps.

In this case, it is easier to deal with, first of all, it is necessary to break the hollow drum area with something, and then it is necessary to polish this part of the area flat, and then clean up the debris, and then pour it with the adjusted cement, the best area should be larger, so that there will be no uneven places. Now if the cement floor is leveled, in fact, many people choose to use self-leveling to do, this kind of ground is relatively flat, and then it is not easy to damage, and the current ** is not very high.

But I'm a staircase, and the steps are hollow, so how to deal with it. Hold on.

How to deal with floor hollow drum grouting construction steps.

First, the concept of concrete floor hollowing: concrete floor hollowing is the delamination phenomenon between the floor leveling layer and the base layer due to the pasting and poor combination, commonly known as "two layers of skin". Second, the cause of the hollow drum analysis:

1. Concrete shrinkage: The traditional screed construction process is to clean the base concrete first, and then pour the 8-10cm concrete screed layer with fine stone concrete. This construction method is due to the large shrinkage and deformation of cement slurry, and the adhesion is insufficient, so that the leveling layer and the structural layer are easy to disengage, and concrete hollowing or cracks appear.

The shrinkage of base concrete and surface concrete is different, and it is also prone to hollowing. 2. Interface cleaning is not: the base concrete will be cleaned before the construction of the leveling layer, but the dust can not be cleaned up in the actual operation process, and there will be floating slurry on the surface of the base concrete, which cannot be cleaned and cleaned, and it is generally recommended to polish, otherwise the floating slurry and dust will play an isolation role, resulting in hollowing.

3. Reinforcing bar: If the rebar is added during the construction of the screed, the rebar itself will produce a certain amount of stress, and the role of isolation is also one of the reasons for the hollowing. 4. Expansion joints:

The hollow drum often appears on both sides of the expansion joint, the general theory is that it is caused by the vibration in the cutting process, according to the investigation of the concrete for many years, this belongs to the shrinkage of the concrete itself, the cutting of the expansion joint is carried out after the concrete is poured, and the four sides of the concrete will naturally warp upwards and shrink after cutting, so there will be a hollow drum on both sides of the expansion joint of most projects. 3. Floor hollow drum grouting construction steps: (1) Preparation before construction 1. Confirm the hollow drum parts that need to be treated.

2. Drill holes in the hollow drum position, clean the surface, and bury the grouting nozzle. (2) Chemical grouting 1, grouting after the grouting nozzle is arranged: determine the grouting pressure and grouting amount according to the specific conditions of the hollow drum part.

2. After the engineer AB grouting resin is prepared, it is poured into the grouting machine container. 3. Use a high-pressure grouting machine to pour Zhengxiang AB-1 grouting resin into the hollow drum position, prove that the filling is full, and then close the valve. When grouting, it is necessary to prevent the grouting liquid from overflowing from other holes, resulting in waste.

Confirm that the grouting is completed, and the resin is initially set after the removal of the machine for hours; It can be used normally after 7 days of dry curing. Fourth, grouting quality assurance:

The grouting resin used on site meets the technical performance indicators. The hollow drum part that has been grouting will no longer appear hollow to ensure the integrity and durability of the concrete.