KR100610698B1 - Device for mending crevice of concrete structure and mending method thereof - Google Patents

Abstract

The present invention relates to a void filling repair device and a construction method of the concrete structure, repairing the cracked portion of the concrete structure, the void filling repair device consisting of a repair liquid injection pipe, repair liquid supply hose, pump and repair liquid storage tank, A repair surface check hole which is drilled with a wide core drill at a position to check the degree of corrosion, moisture distribution and crack state of the metal; A concrete stopper that is tightly fitted into the repair surface confirmation hole and fixedly coupled; It is installed to penetrate in the vertical direction in the center of the stopper, characterized in that it comprises a connection pipe is formed in the pipe connection hole is formed so as to connect the repair liquid injection pipe.

According to the present invention, it is easy to visually check the cracking portion generated by the internal deformation of the structure, and the leak is repaired after grasping the immersion state clearly, thereby improving the accuracy and efficiency of the work.

Concrete structures, void filling, cracks, leaks, repair

Description

Device for mending crevice of concrete structure and mending method

1 is a state diagram showing the air gap filling repair apparatus of a conventional concrete structure.

Figure 2 is a perspective view showing a void filling repair apparatus of a concrete structure according to the present invention.

Figure 3 is a use state showing the void filling repair apparatus of a concrete structure according to the present invention.

Figure 4 is a state diagram showing another embodiment of the air gap filling repair apparatus of the present invention.

Explanation of symbols on the main parts of the drawings

10; Construction surface 10a; Crack

20; Repair surface check hole 30; Stopper

31; Bonding portion 35; Connector

36; Pipe connection 37; Support plate

40; Repair liquid inlet 41; Coupling

42; Fitting pipe 43; lever

80; Supply hose 90; Pump

95; Storage tank 100; rebar

110; Micropore Maintenance Means

The present invention relates to a void filling repair device for a concrete structure and its construction method, and more specifically, in repairing voids or fine cracks generated inside a concrete structure, a position to be identified using a wide core drill or the like. Easily observe the degree of submersion by easily observing the degree of corrosion of steel, moisture distribution, and cracks of the site by drilling a hole, and then effectively filling and hardening the cracks even with a small gap under the accurate diagnosis by using a filler. It relates to a void filling repair device and a construction method of the concrete structure to be filled and prevented leakage.

In general, after a long time after the construction of concrete structures, cracks such as cracks and voids are generated inside the building due to various factors such as external force and water expansion.

Such cracks in the structure cause water leakage, and as the water leakage phenomenon persists for a long time such as infiltration of rainwater, there is a problem in that the crack area is further enlarged by capillary phenomenon, which corrodes the internal steel bars and the durability of the structure In order to reduce the overall lifespan of the building and to shorten the life of the building as well as the collapse of the building in severe cases, it can have a very dangerous result in terms of safety.

In particular, in the case of new buildings, if such a leak is confirmed after the waterproof construction, there is a problem in that the economic cost is greatly increased, such as overall reconstruction work is performed.

Therefore, some repair devices for introducing fillers into cracks have been released to block internal cracks and leaks.

Figure 1 shows a void filling repair device of such a conventional concrete structure, as shown, the conventional void filling repair device detects the cracked portion (1a) of the concrete structure (1) and the hole (2) Perforations), and the hole (2) is fitted with a filler (4) for the injection of the filler 4 is fixed, the pipe (4) is connected to the pipe (5), the joint pipe (5) is a storage tank (3) And a supply hose 8 coupled to the pump to mix the water-soluble waterproofing material, the water repellent material, cement, water, and the like, and a repair liquid is pumped from the storage tank 3 by the pump 9 to supply the supply hose 8. After supplying to the joint pipe (5) through, and then operating the lever (7) provided in the joint pipe (5) stored water is stored in the cracking portion (1a) of the structure through the pipe (4) It is made of a structure that prevents leakage of the structure by pressure solidification .

The above method is to insert a pipe into the structure to supplement the insertion site, and then proceed with the order to put the mixed repair solution, there was an advantage that can be carried out to some extent without removing the leaking site. However, in this method, the size of the hole drilled in the crack of the structure is so small that it is impossible for the operator to check the exact degree of flooding, such as the submerged state of the cracks and the rusty state of the reinforcing bars, and thus the degree of cracking is not accurately understood As the maintenance work is carried out depending on the rough feeling, the workability and accuracy are notably degraded, and in some cases, reconstruction is caused.

Therefore, the present invention has been devised to solve the above problems, by making the worker clearly grasp the degree of submerged state, such as the moisture distribution state of the site suspected of cracking and the rusty state of the reinforcing bars, work to repair Its main purpose is to provide a high-efficiency concrete structure-filled repairing device and its construction method to achieve the effect of reducing construction cost by preventing leaks and preventing reconstruction by increasing the accuracy and stability of the system.

In the void filling repair apparatus of the concrete structure of the present invention for achieving the above object, in the void filling repair device consisting of a repair liquid injection pipe, a repair liquid supply hose, a pump and a repair liquid storage tank to repair cracks of the concrete structure. A repair surface check hole which is drilled with a wide core drill at a position to check the corrosion degree of the steel, the distribution of moisture and the state of cracking; A concrete stopper that is tightly fitted into the repair surface confirmation hole and fixedly coupled; It is installed to penetrate in the vertical direction in the center of the stopper, characterized in that it comprises a connection pipe is formed in the pipe connection hole is formed so as to connect the repair liquid injection pipe.

In addition, the plug is characterized in that the adhesive portion is formed on the circumferential surface is sealed to the maintenance surface confirmation hole.

In addition, between the construction surface of the repair surface confirmation hole and the bottom surface of the stopper is characterized in that the fine pores holding means made of granules of small particles are thinly applied.

Waterproof construction method using a void filling repair device of the concrete structure of the present invention, the step of drilling a repair surface confirmation hole having a diameter of 50 ~ 100mm to the crack position to check; Removing foreign matter in the repair surface identification hole and reading a state of a crack; Sealing the repair surface confirmation hole after installing a stopper in which a connection pipe penetrates in the vertical direction to the maintenance surface confirmation hole; And a step of filling and hardening the repair solution to the crack by combining the repair solution injection tube, which is a backflow prevention device, to the connection pipe installed in the repair surface check hole.

In addition, in the first embodiment, the plug installation step is characterized in that the plug is fixed to the plug body to the maintenance surface confirmation hole after applying the adhesive on the peripheral surface of the plug molded in one piece.

In addition, in the second embodiment, the plug installation step, inserting the connection pipe extending from the bottom left and right to the maintenance surface confirmation hole, and filling the concrete on the support plate to the maintenance surface confirmation hole It is characterized by sealing.

In addition, the maintenance surface check hole is characterized in that it further comprises the step of laying a thin micro-pore holding means made of granules of the particles before the plug installation.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a perspective view showing a void filling repair apparatus of a concrete structure according to the present invention, Figure 3 is a state diagram showing a void filling repair apparatus of a concrete structure according to the present invention.

As shown in Figure 2 and 3, the void filling repair apparatus of the concrete structure according to the present embodiment, the repair liquid injection pipe 40, the repair fluid supply hose 80, the pump to repair the cracked portion of the concrete structure In the air gap filling repair device consisting of 90 and the repair liquid storage tank (95), a wide core in the construction surface 10 of the concrete structure to check the corrosion degree, moisture distribution and crack state of the reinforcing steel 100 Using a drill or the like, the worker drills the repair surface check hole 20 to a predetermined depth and width (preferably 50 to 100 mm) so that the worker can easily observe the submerged state of the corresponding part 10a. The surface check hole 20 is fitted with a concrete stopper 30 is tightly coupled to each other, the center of the stopper 30 has a structure in which the connecting pipe 35 is installed through the vertical direction.

At this time, the stopper 30 is preferably formed to be bonded to the maintenance surface confirmation hole 20 by forming an adhesive part 31 made of concrete mortar adhesive or the like on the peripheral surface thereof.

The connection pipe 35 has a pipe connection hole 36 formed with a screw thread to connect the repair liquid injection pipe 4 therein, and is connected at the bottom when the plug 30 of the connection pipe 35 is installed. The support plate 37 of a predetermined width is installed to prevent the pipe 35 from tilting left and right.

In addition, the repair liquid injection pipe 40 is formed with a coupling portion 41 having a screw thread to be screwed to the connecting hole 36 at one end, the other end is connected to the supply hose 80 for supplying the repair liquid It is coupled to (42), the outer side of the fitting pipe 42 is provided with a lever 43 to open and close the pipe 40 and the supply hose 80 during injection into the injection pipe 40.

One side of the supply hose 80 is connected to the pump 90 and the maintenance liquid storage tank 95 so that the pump hose 90 is pumped from the storage tank 95 when the lever 43 is operated. It is configured to be supplied to the repair liquid supplied to the cracks 10a of the connection pipe 35 and the structure 10 through the repair liquid injection pipe 40.

In addition, the maintenance surface confirmation hole 20 has a range of input of the repair liquid in order to more effectively inject the repair liquid discharged through the connection hole 36 of the connector 35 into the crack portion 10a of the structure 10. In order to expand, the micropore holding means 110 made of small grains such as gravel or sand may be thinly laid on the lower portion of the stopper 30. At this time, the disposed micro-pore holding means 110 is hardened without voids in the repair liquid filled after the maintenance work is completed, while improving the working speed does not have any effect on the work results.

The repair solution is composed of a mixture of water-based epoxy and cement in an appropriate ratio, preferably, as disclosed in the Patent Application No. 10-2002-60049 filed by the applicant, the epoxy resin polymerized epichlorohydrin and bisphenol A It is prepared by mixing cement with an epoxy waterproofing agent consisting of a methyl cellulose emulsifier, an antifoaming agent, and a curing agent prepared by reacting cellulose with an aqueous alkali solution and diethyl sulfate. At this time, the water-retaining liquid has excellent adhesion, corrosion resistance, water tightness, and freeze-thawing resistance by the properties of the water-based epoxy waterproofing agent.

When explaining the waterproof construction method using the air gap filling repair device of the present invention configured as described above in detail.

First of all, whether a reinforcing bar, an electric pipe, or a gas pipe is buried at a position to check the crack state of the concrete structure 10 before the operation through a metal detector or the like, and avoids the location of the buried pipe, allowing a wide core. After drilling a repair surface check hole 20 having a diameter of about 50-100 mm with a drill, the foreign material in the repair surface check hole 20 is removed and the structure cracks 10a of the structure are repaired through the repair surface check hole 20. Visually read the submerged state.

Subsequently, the stopper body 30 is installed in the repair surface check hole 20 through the connection pipe 35 in the vertical direction according to the read result, and the stopper 30 is connected to the repair surface check hole ( 20) After sealing by sealing, screw the water-retaining liquid injection pipe 40, which is a backflow prevention device to the connecting pipe 35, and then rotate the lever 43 installed on one side of the water-retaining liquid injection pipe 40 to store The repair liquid contained in the tank 95 is uniformly diffused and filled in the crack portion 10a of the structure 10 through the supply hose 80 and the repair liquid injection tube 40 by pumping the pump 90. It is hardened.

Thereafter, the repair solution injection pipe 40 is separated from the connecting pipe 35 and the pipe coupling hole 36 inside the connecting pipe 35 is sealed by mortar or the like, and the repair work is completed.

On the other hand, the stopper 30 is to be produced by pouring concrete around the connection pipe 35, directly produced in the factory, or directly after installing the connection pipe 35 in the repair surface confirmation hole 20 The concrete is poured and manufactured on site.

According to the first embodiment using the stopper surface confirmation hole 20 installation method of such a stopper 30, as shown in FIG. After applying an adhesive made of concrete mortar or the like on the peripheral surface of the shaped plug 30, the stopper 30 is inserted into the repair surface check hole 20, and the stopper 30 is the repair surface check hole 20. ) To be sealed.

In addition, according to the second embodiment, as shown in Figure 4, inserting the connecting pipe 35 'is formed in the support surface 37' extending from the left and right to the maintenance surface confirmation hole 20, the support plate 37 ') Pour the concrete on the top to fill the repair surface confirmation hole 20 is to ensure that the repair surface confirmation hole 20 is sealed.

In addition, before the installation of the stopper 30, the maintenance surface confirmation hole 20 may be installed by thinly laying the micro-pore holding means 110 made of small particles such as gravel or sand.

As described above, the air gap filling repair device and waterproof construction method of the concrete structure of the present invention, it is easy to visually check the cracks caused by the internal deformation of the structure to clearly identify the state of the water leakage repair work after By doing so, it is a useful invention that can improve the accuracy and efficiency of the work.

Claims (7)

In the air gap filling repair device for repairing the cracked portion (10a) of the concrete structure 10, consisting of a repair liquid injection pipe 40, a repair liquid supply hose 80, a pump 90 and a repair liquid storage tank (95), A repair surface confirmation hole 20 which is drilled with a wide core drill at a position to check the corrosion degree of the rebar, the distribution state of moisture and the crack state; A concrete stopper 30 that is tightly fitted into the repair surface checking hole 20 and fixedly coupled thereto; It is installed through the stopper 30 in the vertical direction in the center, characterized in that it comprises a connecting pipe 35 is formed in the pipe connection hole 36 to connect the repair liquid injection pipe 40 therein Pore filling repair device for concrete structures. The method of claim 1, wherein the plug 30 is Adhesive part 31 is formed on the circumferential surface of the air gap filling repair device, characterized in that coupled to the sealing surface check hole 20 is sealed. According to claim 1, Concrete between the construction surface of the maintenance surface confirmation hole 20 and the bottom surface of the stopper 30, the micro-pore retention means 110 of the granules of small particles is applied thinly Pore filling repair device of structure. Drilling a repair surface confirmation hole 20 having a diameter of 50 to 100 mm at a crack position to be checked; Removing foreign matter in the repair surface check hole (20) and reading a state of the crack (10a); Sealing the repair surface confirmation hole (20) after installing a stopper (30) in which a connection pipe penetrates in the vertical direction to the maintenance surface confirmation hole (20); And It is characterized in that it comprises a step of filling and hardening the repair liquid in the cracking portion (10a) by coupling the repair liquid injection pipe 40 is a backflow prevention device to the connection pipe 35 installed in the repair surface check hole (20) Waterproof construction method using air gap filling repair device. The method of claim 4, wherein the plug 30 is installed, Waterproof construction using the pore filling repair device of the concrete structure, characterized in that the adhesive body is applied to the peripheral surface of the plug body 30 formed in one piece, and then fixed to the plug body 30 inserted into the repair surface check hole 20. Way. The method of claim 4, wherein the plug 30 is installed, Insert the connecting pipe 35 'having the support plate 37' extending from the bottom left and right to the repair surface check hole 20, and fill the concrete with the support plate 37 ', and the repair surface check hole 20 Waterproof construction method using the air gap filling repair device, characterized in that the sealing). The method according to any one of claims 4 to 6, Filling the air gap of the concrete structure, characterized in that the repair surface check hole 20 further comprises the step of installing a thin micro-pore maintaining means 110 of the granules before the installation of the stopper (30). Waterproof construction method using repair device.

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