Empty drum repairing method

Abstract

The invention relates to a hollowing repairing method. The hollowing repairing method comprises the following steps: determining a hollowing position on a wall surface; determining a drilling position according to the hollowing position, and performing drilling treatment to form a grouting hole; injecting and filling grout into the grouting holes; and an anchoring rod is inserted into the grouting hole after grouting is completed. According to the hollowing repairing method, compared with a repairing mode that the face bricks are dismantled for inlaying, operation is simpler, the face bricks are not prone to being damaged, and the problem that the face bricks protrude in the grouting process can be well solved.

Description

Technical Field

[0001] The invention relates to the technical field of building repair, in particular to a hollowing repair method. Background Art

[0002] Hollowing is a common phenomenon in the construction industry. The cause of hollowing is generally due to the lack of bonding layer and leveling plaster layer between the wall tiles and the base layer. The current method of repairing hollowing generally includes removing the tiles and then re-adding the bonding layer and leveling plaster layer, that is, the patching repair method. This repair method is complicated to operate and easily causes damage to the tiles. There is also a method of drilling holes at the hollow position and then using grouting to repair it. The grouting often results in a certain bulge in the tiles. Summary of the invention

[0003] In view of this, the purpose of the present invention is to provide a hollow repair method, which is simpler to operate, less likely to cause damage to the tiles, and can effectively avoid the problem of bulging tiles during the grouting process compared to the repair method of removing the tiles and filling them.

[0004] The present invention provides a hollow drum repairing method, comprising the following steps:

[0005] Confirm the location of the hollow space on the wall;

[0006] Determine the drilling position according to the hollowing position, and perform drilling processing to form a grouting hole;

[0007] Inject filling slurry into the grouting hole;

[0008] Insert anchor rods into the grouting holes after grouting is completed.

[0009] In one embodiment, the step of confirming the hollow drum position further comprises:

[0010] Knock on the wall according to the preset knocking method;

[0011] Determine the location of the hollow drum based on the sound produced by striking it.

[0012] In one embodiment, the step of determining a drilling position according to the hollow position and performing a drilling process to form a grouting hole further comprises:

[0013] Determine the range of the hollow position, and determine the repair range on the wall surface according to the range of the hollow position, wherein the range of the hollow position is within the repair range, and the area of ​​the repair range is larger than the range of the hollow position;

[0014] Drilling operations are performed at the gaps and joints between tiles on the wall surface within the repair range to form the grouting holes, and the grouting holes are arranged crosswise.

[0015] In one embodiment, the drilling process further comprises:

[0016] An overflow hole is drilled above the range of the hollow position.

[0017] In one embodiment, the number of the grouting holes is 10 to 12 per square meter, and the height of the grouting inlet of the grouting hole is higher than the grouting outlet.

[0018] In one embodiment, injecting the filling slurry into the grouting hole further comprises:

[0019] Cleaning the grouting hole;

[0020] Fill the grouting hole with injection filling slurry.

[0021] In one embodiment, inserting an anchor rod into the grouting hole after grouting is completed further comprises:

[0022] Select anchor rods according to the size of the grouting hole and the thickness of the leveling plaster layer to the base layer;

[0023] Insert the anchor rod into the base through the grouting hole.

[0024] In one embodiment, the hollow drum repair method further comprises:

[0025] After the filling slurry solidifies, use mixed mortar that matches or matches the wall color to fill the grouting holes.

[0026] Compared with the repair method of removing tiles and patching them, the hollow repair method provided by the present invention is simpler to operate, less likely to cause damage to the tiles, and can well avoid the problem of bulging tiles during the grouting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 The present invention is a schematic flow chart of the hollow drum repairing method provided by the present invention.

[0029] Figure 2 A schematic diagram of the layout of grouting holes for the hollow drum repair method provided by the present invention.

[0030] Figure 3 This is a schematic diagram of the structure of a wall after hollowing repair provided by the present invention. DETAILED DESCRIPTION

[0031] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the description of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0033] The directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front”, “back”, “top”, “bottom”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0034] The terms "first", "second", "third", etc. are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order.

[0035] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of the elements listed and may also include additional elements not expressly listed.

[0036] See also Figure 1 The hollow drum repairing method provided by the present invention comprises the following steps:

[0037] S1, confirm the hollow position on the wall.

[0038] It is understandable that the above steps may further include:

[0039] S101, knocking on the wall according to a preset knocking method.

[0040] It can be understood that the preset knocking method can be to divide the wall into multiple areas, and knock on the divided areas on the wall one by one, and the knocking can be done by using a hollow drum hammer as a detection tool.

[0041] S102, determining the hollow drum position according to the sound produced by the knocking.

[0042] It can be understood that the density and internal voids of an object can be judged based on the sound frequency and sound characteristics produced by knocking on the object, so as to detect the possibility of hollowing and leakage in the exterior wall. The sound frequency produced by knocking can be collected by some sound collection equipment, and the judgment result can be output based on the frequency and sound characteristics of the collected sound. Of course, skilled workers can also make judgments based on the sound characteristics and work experience.

[0043] In addition to the above judgment methods, the hollowing state can also be detected by infrared detection. Infrared detection is based on the fact that the temperature of the hollowing is inconsistent with that of other locations on the wall. Therefore, the location of the hollowing can be well found on the thermal imaging image. Ultrasonic detection can also be used. It is a method that uses the characteristics of ultrasonic propagation in materials to detect internal defects (i.e. hollowing), cracks, deformation and other problems of the material. When ultrasonic waves pass through the wall, they will be affected by the internal structure and physical properties of the stone, resulting in propagation speed and attenuation. By measuring the propagation speed and attenuation characteristics of ultrasonic waves, mechanical parameters such as elastic modulus, Poisson's ratio, and compressive strength of the material can be inferred, and the condition of the wall can be judged based on the above mechanical parameters.

[0044] S2, determining the drilling position according to the hollowing position, and performing drilling processing to form a grouting hole.

[0045] It is understood that the above steps may include:

[0046] S201, determining the range of the hollow position, and determining the repair range on the wall surface according to the range of the hollow position, wherein the range of the hollow position is within the repair range, and the area of ​​the repair range is larger than the range of the hollow position.

[0047] It can be understood that the repair range is larger than the range of the hollow drum position, which can greatly improve the repair effect. The repair range can be 100 to 300 mm larger than the range of the drum position, that is, the length and width are both 100 to 300 mm. The range of the hollow drum position and the repair range can be marked on the wall.

[0048] S202, drilling operations are performed at the gaps and joints between the tiles on the wall surface within the repair range to form grouting holes, and the grouting holes are arranged crosswise.

[0049] For your information, please refer to Figure 2There will be a certain spacing between the facing bricks, and grouting will be performed between the spacings. Drilling holes at the grouting can reduce the difficulty of drilling on the one hand, and reduce the damage to the facing bricks on the other hand. The cross-setting between the grouting holes can be understood as follows: the width between the grouting holes on the first horizontal plane is at least the width of two facing bricks, and the height difference between the second horizontal plane and the first horizontal plane is the thickness of one facing brick. The grouting holes on the second horizontal plane are correspondingly located between the two grouting holes on the first level. The reason for the hollowing is only the lack of the bonding layer and the leveling plaster layer between the facing bricks and the base layer. The drilling can penetrate about 30mm into the base layer for the purpose of inserting the anchor rod. The number of grouting holes can be 10 to 12 per square meter, and the height of the grouting hole inlet is higher than the grouting outlet. In this case, the inclination angle of the grouting hole can be slightly downward at an angle of 15°. The purpose of the inclination can be to better realize grouting and avoid the problem of filling slurry outflow.

[0050] S203, drilling a grouting hole above the hollow position.

[0051] It can be understood that an overflow hole can be arranged at the top of the hollow position, and the overflow hole can also be located at the grouting position. Since the grouting method is air pressure grouting, in order to avoid the problem of tiles detaching due to high pressure at the hollow position, an overflow hole will be set, and excess filling slurry can flow out from the overflow hole.

[0052] S3, inject filling slurry into the grouting hole.

[0053] It is understandable that the above steps may further include:

[0054] S301, clean the grouting holes.

[0055] It is understandable that the cleaning method can be to blow away the dust with compressed air. The purpose of cleaning the grouting holes is to prevent the dust from affecting the bonding effect of the filling slurry.

[0056] S302, filling the grouting hole with injection slurry.

[0057] It is known that the filling slurry can be filled into the hollow drum with a glue injection gun to realize air pressure grouting. The filling slurry can be epoxy resin slurry (or ultra-fine repair mortar mixed with reinforced latex). The filling slurry needs to fully examine the material of the base layer, whether the base material is a soft base or a hard base. The strength of the bonding layer cannot be much greater than the strength of the base layer to prevent the bonding layer from splitting and peeling off from the base layer during the curing process. The strength of the grouting material should not be greater than the strength of the bonding layer material. The grouting order can be from bottom to top, that is, starting from the lowest grouting hole on the horizontal plane, and gradually rising to the highest grouting hole on the horizontal plane. During the grouting process, the epoxy resin slurry overflowing from the overflow hole needs to be wiped clean. When the overflow state occurs, it can be assumed that the grouting work has been completed and the grouting can be stopped.

[0058] S4, inserting anchor rods into the grouting holes after grouting is completed.

[0059] It is understandable that the above steps may further include:

[0060] S401, select anchor rods according to the size of the grouting hole and the thickness of the leveling plaster layer to the base layer.

[0061] See also Figure 3 It can be understood that the diameter of the anchor rod can be slightly smaller than the grouting hole, and the length of the anchor rod can be greater than the thickness of the leveling plaster layer, and not greater than the sum of the thickness of the leveling plaster layer and the base layer.

[0062] S402, inserting the anchor rod into the base layer through the grouting hole.

[0063] It can be understood that the anchor rod can be a Φ6 stainless steel anchor screw, which can be inserted into the base layer for a certain distance. The anchor rod can squeeze out the excess epoxy resin slurry in the epoxy resin slurry by extrusion, thereby avoiding the problem of bulging of the facing tiles. At the same time, the anchor rod can also improve the stability of the connection between the cured epoxy resin slurry and the base layer.

[0064] S5. After the filling slurry solidifies, use mixed mortar that matches or matches the wall color to fill the grouting holes.

[0065] It can be connected that color matching or color can always refer to the color that you want to match the original grouting position. The ratio of pigment to cement mortar can be 1:3, so as to obtain mixed mortar. After drying, the wall can be cleaned.

[0066] From the above description, it can be known that the hollow repair method provided by the present invention is simpler to operate, less likely to cause damage to the tiles, and can well avoid the problem of bulging tiles during the grouting process, relative to the repair method of removing the tiles and filling them.

[0067] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A hollow drum repair method, characterized in that: The steps include: Confirm the location of the hollow space on the wall; Determine the drilling position according to the hollowing position, and perform drilling processing to form a grouting hole; Inject filling slurry into the grouting hole; Insert anchor rods into the grouting holes after grouting is completed.

2. The hollow drum repairing method according to claim 1, characterized in that: The step of confirming the hollow drum position further comprises: Knock on the wall according to the preset knocking method; Determine the location of the hollow drum based on the sound produced by striking it.

3. The hollow drum repairing method according to claim 2, characterized in that: The method of determining the drilling position according to the hollowing position and performing drilling processing to form a grouting hole further includes: Determine the range of the hollow position, and determine the repair range on the wall surface according to the range of the hollow position, wherein the range of the hollow position is within the repair range, and the area of ​​the repair range is larger than the range of the hollow position; Drilling operations are performed at the gaps and joints between tiles on the wall surface within the repair range to form the grouting holes, and the grouting holes are arranged crosswise.

4. The hollow drum repairing method according to claim 3, characterized in that: The drilling process also includes: An overflow hole is drilled above the range of the hollow position.

5. The hollow drum repairing method according to claim 3, characterized in that: The number of the grouting holes is 10 to 12 per square meter, and the height of the grouting inlet of the grouting hole is higher than the grouting outlet.

6. The hollow drum repairing method according to claim 1, characterized in that: The step of injecting filling slurry into the grouting hole further comprises: Cleaning the grouting hole; Fill the grouting hole with injection filling slurry.

7. The hollow drum repairing method according to claim 1, characterized in that: The method of inserting an anchor rod into the grouting hole after the grouting is completed further comprises: Select anchor rods according to the size of the grouting hole and the thickness of the leveling plaster layer to the base layer; Insert the anchor rod into the base through the grouting hole.

8. The hollow drum repairing method according to claim 1, characterized in that: The hollow drum repair method also includes: After the filling slurry solidifies, use mixed mortar that matches or matches the wall color to fill the grouting holes.

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