KR102583733B1 - Waterproofing device using Micro-cement of Crack repair material and Method for reinforcing concrete - Google Patents

Abstract

The water leakage waterproofing device using the micro cement crack repair material of the present invention is provided with a square frame and four pillars at the bottom, and the lower upper plate includes a lower support coupled to the four pillars; Four moving supports supporting the moving plate, two pistons installed on the lower upper plate, a first hydraulic power source that supplies hydraulic energy to move the pistons up and down, and hydraulic energy generated from the first hydraulic power source is transmitted. an upper support including a hydraulic hose and a hydraulic supply unit connected to the hydraulic hose; The lower support is fastened and fixed to the upper support; An upper plate including an inlet and an air cap is coupled to the upper part of the moving plate; An injection hose is connected to the injection port, and the injection hose is connected to a hydraulic injector; The repair material supplied to the injection port is characterized in that the repair material supplied by hydraulic energy is consolidated and injected by hydraulic energy that can be freely controlled according to the internal environment of the cracked concrete layer. According to the present invention, since the microcement repair material is compacted and injected, the waterproofing effect is maintained for a long period of time and construction work can be easily performed.

Description

Waterproofing device using Micro-cement of Crack repair material and Method for reinforcing concrete}

The present invention relates to a water leakage waterproofing device and a concrete reinforcement method using a microcement crack repair material. More specifically, when a water leak occurs in a slab or beam of a concrete structure, a water leakage waterproofing device using a microcement crack repair material that injects a crack repair material using microcement into the crack to seal the crack and prevent further water leakage; It is about concrete reinforcement methods.

In concrete structures, large or small cracks occur due to various reasons, such as drying shrinkage of concrete, floating settlement, bleeding, or excessive stress. These cracks may affect the structural safety of the structure depending on the location of the crack and the width and depth of the crack, and may also cause damage to the structure such as water leakage. In addition, in the case of an apartment's underground parking lot, cracks exposed to the outside spoil the aesthetics of the structure, cause anxiety in users, and have the risk of escalating into group complaints or tarnishing the public image of the construction company. Therefore, there is a need to repair cracks that occur in concrete structures such as apartment underground parking lots, and various repair methods are used depending on the width of the crack and the location where it occurs.

Figure 1 shows a structure for injecting repair material into a concrete structure according to the prior art. A plurality of support rods (3) and columns (6) are installed below the support plate (2) of the concrete structure (1) to be constructed. The support plate (2) is provided with a repair material injection port (5) and two air caps (4) to remove air. However, the prior art in FIG. 1 has the disadvantages that maintenance work is difficult due to irregular injection pressure and that it is difficult to support the support plate 2.

Crack repair methods include surface treatment method, injection method, filling method, forced anchor method, and shotcrete method. The surface treatment method is a method that forms a coating film on the surface of fine cracks of 0.2 mm or less to improve waterproofing and durability, but has the disadvantage of not being able to treat the inside of the crack. The injection method is a representative crack repair method that injects low-viscosity resin into the crack to fill the gap between the cracks and attach the base material. The filling method is a method of making a V or U cut on the surface of the base material and filling the area with a sealing material. The forced anchor method is a method of sealing the crack by installing anchors on the left and right sides of the crack, and the shotcrete method is a method of reinforcing it by spraying paint in a tunnel, etc. The most widely used method to repair fine cracks is to inject epoxy. Epoxy has high compressive and tensile strength, can be manufactured in various viscosities, develops strength early, and has excellent adhesion, so it is widely used as a crack repair material in structures. However, epoxy is somewhat complicated to handle and

Proper temperature management is required, and there are problems with fire resistance performance in the event of a fire, and additional stress or cracks may occur due to differences in drying shrinkage and strength between concrete and epoxy. In addition, the unit price is high and certain epoxies can cause burns to the human body, making handling very difficult.

As background technology for the present invention, Registered Patent Publication No. 10-0331399 (announcement date: August 8, 2002) “Microcement crack repair material and crack repair method using the same” has been disclosed.

The invention relates to a crack repair material and a crack repair method using the same, which seals the crack by injecting a crack repair material using microcement into the crack when a crack occurs in a slab or beam of a structure and prevents the crack from growing further. .

The construction sequence of the structural crack repair method using microcement of the invention is to first remove contaminants from the surface with a width of about 50 mm centered on the crack area, then mark the positions of the injection holes for injecting the crack repair material at regular intervals, and then mark the indicated Drill the injection hole with a concrete drill so that the injection hole is in the center of the crack.

The inside of the injection hole is cleaned with a brush, etc., and foreign substances inside the hole are removed with compressed air. After cleaning is completed, the injection pipe is installed by pushing it into the injection hole, and the crack between the injection pipe and the injection pipe is sealed with a sealant to prevent leakage of the crack repair material. When preparations for injecting the crack repair material are completed, mix the microcement with water and a fluidizing agent at a predetermined mixing ratio and inject it using a squeeze pump, chemical pump, etc.

The above invention has problems in that injection of crack repair material is inefficient and construction is difficult. The present invention was designed to solve the problems of the prior art.

Registered Patent Publication No. 10-0331399 Registered Patent Publication No. 10-0974675 Registered Patent Publication No. 10-0979180 Public Patent Publication No. 10-2022-0095958

The purpose of the present invention is to provide a water leakage waterproofing device using a microcement crack repair material that prevents further water leakage by injecting the crack repair material using microcement into the crack when water leakage occurs in a concrete structure.

Another object of the present invention is to provide a method of reinforcing concrete using a crack repair material that is easy to inject even into fine cracks using microcement.

Another object of the present invention is to provide a method of reinforcing concrete weakened by cracks and having excellent constructability by using a water leak prevention device.

Water leakage waterproofing device using the microcement crack repair material of the present invention
A square frame 11 and four pillars 12 are provided at the bottom, a horizontal support 14 is connected in the middle, and the lower upper plate 13 is coupled to the four pillars 12; Four wheels 16 for movement are installed at the bottom of the frame 11, a lower support 10 on both sides of which a plurality of fixtures 15 for fixing the lower support 10 to the ground are installed, and a moving plate Four moving supports (24) supporting (22) and two pistons (25) installed on the lower upper plate (13) and the pistons (25) are moved up and down to move the moving plate (22) up and down. A first hydraulic power source 23 that supplies hydraulic energy so as to supply hydraulic energy, a first hydraulic hose 26 and a second hydraulic hose 27 that transmit hydraulic energy of the first hydraulic power source 23, and a first hydraulic hose (26) and the second hydraulic hose (27), a first hydraulic supply unit (28) and a second hydraulic supply unit (29) installed in the middle of the upper support (20), respectively, and a plurality of hydraulic hoses on the lower upper plate (13). A fastener 17 is provided so that the lower support 10 is fastened to the upper support 20;
An upper plate 30 including an inlet 32 and air caps 33 and 34 is coupled to the upper part of the moving plate 22; An injection hose 35 is connected to the injection port 32, and the injection hose 35 is connected to the injection unit 40; In the water leak prevention device that consolidates and injects the repair material supplied to the injection port 32 into the cracked concrete layer using hydraulic energy,
It further includes a blender 50 for manufacturing the repair material, wherein the mixer 50 for manufacturing the repair material by diluting the contents contained in the blender 50 for 5 to 10 minutes so that there is no lumpy powder, and the top plate (30) It further includes a rubber ring (35) attached to the circumference, wherein the rubber ring (35) prevents the repair material from leaking out when the repair material supplied to the injection port (32) is compacted and injected into a crack in the concrete structure using hydraulic energy. Sealed to prevent;
A tensile reinforcing mesh (36, 37) is further included at the bottom of the top plate (30), and the tensile reinforcing mesh is attached to the concrete crack and applied as a repair material; The means for moving the piston 25 and the moving support 24 up and down is a remote controller.
In addition, the concrete reinforcement method using the micro cement crack repair stand of the present invention includes a square frame 11 and four pillars 12 at the bottom, a horizontal support 14 connected in the middle, and a lower top plate 13. It is coupled to these four pillars 12, and four wheels 16 for movement are installed at the bottom of the frame 11, and a plurality of fixtures 15 for fixing the lower support 10 to the ground are provided on both sides. The lower support 10 installed, the four movable supports 24 supporting the moving plate 22, the two pistons 25 installed on the lower upper plate 13, and the pistons 25 are moved up and down. A first hydraulic power source 23 that supplies hydraulic energy to move the moving plate 22 up and down, a first hydraulic hose 26 and a second hydraulic power source that transmits the hydraulic energy of the first hydraulic power source 23 A first hydraulic supply unit (28) and a second hydraulic supply unit (29) installed in the middle of the upper support (20) connected to the hydraulic hose (27), the first hydraulic hose (26), and the second hydraulic hose (27), respectively. And, a plurality of fasteners 17 are provided on the lower upper plate 13, so that the lower support 10 is fastened and fixed to the upper support 20, and an inlet 32 is provided at the upper part of the moving plate 22. and the upper plate 30 including the air caps 33 and 34 are combined, the injection hose 35 is connected to the injection port 32, the injection hose 35 is connected to the injection unit 40, and the injection hose 35 is connected to the injection port 32. The repair material supplied to the injection port 32 is compacted and injected into the cracked concrete layer using hydraulic energy, and includes a rubber ring 35 attached to the circumference of the upper plate 30, and the rubber ring 35 is connected to the injection port 32. When the repair material supplied to ) is compacted and injected into cracks in the concrete structure using hydraulic energy at a maximum injection pressure of 20 kg/cm2, the repair material is sealed to prevent leakage;
A tensile reinforcing mesh (36, 37) is further included at the bottom of the top plate (30), and the tensile reinforcing mesh is attached to the concrete crack and applied as a repair material;
Using a water leakage waterproofing device, the means for moving the piston 25 and the moving support 24 up and down is a remote controller,
(a) The first process of checking the crack condition after cleaning the leaking part of the concrete structure (b) The second process of mixing microcement and water at a weight ratio of 1:0.6 and manufacturing the repair material with a mixer (c) The cracked part Third process of stirring microcement to inject repair material into (d) Fourth process of injecting repair material into the injection port of the upper plate using a hydraulic injector whose pressure can be adjusted depending on the injection state
(E) The 5th process of compacting and injecting the repair material supplied into the injection port of the upper plate using hydraulic energy that can be freely controlled according to the internal environment of the cracked concrete layer.
(f) 6th process of attaching tensile reinforcement mesh to concrete cracks
(G) 7th process of applying repair material to the attached tensile reinforcement mesh part
(H) After the curing period of the applied repair material is over, the eighth process consists of painting the cracked area with paint. In the second process of (b) above, the contents in the mixer are diluted for 5 to 10 minutes to apply the repair material. It is characterized by manufacturing.

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According to the present invention, when a water leak occurs in a slab or beam of a structure, a crack repair material using microcement is injected into the crack to seal the crack, prevent corrosion of the rebar, and the crack repair material is easily consolidated to prevent further water leakage. By being injected, cracks in concrete structures can be reinforced more safely and water leaks can be completely blocked.

In addition, according to the concrete reinforcement method of the present invention, compared to the method using a chemical injection material, a repair material made of mineral microcement is compactly injected, so the waterproofing effect is maintained for a long period of time, and construction work can be performed easily, so it has the advantage of excellent constructability. there is.

Figure 1 is a structural diagram of injecting repair material into a concrete structure using conventional technology.
Figure 2 is a structural diagram of the lower support according to an embodiment of the present invention.
Figure 3 is a structural diagram combining the lower support and the upper support.
Figure 4 is a configuration diagram of an upper support according to an embodiment of the present invention
Figure 5 is a top plate configuration diagram according to an embodiment of the present invention
Figure 6 is a configuration diagram of a hydraulic injector according to an embodiment of the present invention.
Figure 7 is a configuration diagram of injecting repair material into a hydraulic injector
Figure 8 is a configuration diagram of a waterproofing construction device for injecting repair material into the top plate.
Figure 9 is a configuration diagram of a rubber ring coupled around the upper surface of the top plate.
Figure 10 is a configuration diagram of a tensile reinforcement mesh disposed on the upper surface of the top plate.
Figure 11 is a photo of a remote controller that adjusts the top plate to move up and down

Hereinafter, the present invention will be described in detail with reference to the drawings.

Figure 2 is a structural diagram of a lower support according to an embodiment of the present invention, Figure 3 is a structural diagram of a lower support and an upper support combined, and Figure 4 is a structural diagram of an upper support according to an embodiment of the present invention. Figure 5 is a configuration diagram of a top plate according to an embodiment of the present invention, and Figure 6 is a configuration diagram of a hydraulic injector according to an embodiment of the present invention. Figure 7 is a configuration diagram of injecting repair material into a hydraulic injector, and Figure 8 is a configuration diagram of a waterproofing construction device for injecting repair material into the upper plate. Figure 9 is a configuration diagram in which a rubber ring is coupled around the upper surface of the upper plate, and Figure 10 is a configuration diagram in which a tensile reinforcement mesh is disposed on the upper surface of the upper plate. Figure 11 is a photo of a remote controller that controls the top plate to move up and down.

<Crack repair material>

The present invention uses microcement as a crack repair material (hereinafter referred to as “repair material”). Microcement is a cement-based inorganic material that is non-polluting and does not cause soil or groundwater contamination. The physical and chemical properties of the material are not much different from those of ordinary Portland cement, but its fineness makes the hydration structure more dense, so its strength is comparable to that of ordinary Portland cement. It is characterized by being more than 1.5 times higher.

Currently, its main uses include improving soft ground, stabilizing cut areas and preventing the outflow of soil and rocks, stabilizing and strengthening the ground in sloped areas, preventing water leaks from dams and reservoirs, and preventing soil and sand outflow. Since Portland cement usually has a maximum particle size of about 0.1 mm, there is a limit to the cracks that can be repaired using Portland cement.

When repairing cracks in rock or concrete structures, the minimum crack width that can be repaired using Portland cement is usually about 0.3 mm.

Meanwhile, cracks that require repair are those that are 0.4 mm or more in terms of durability and 0.2 mm or more in terms of waterproofing. Normally, Portland cement can only be injected into cracks larger than 0.3 mm, so it is satisfactory in terms of durability, but it can be said to be an ineffective material in terms of waterproofing. The present invention uses microcement as a repair material.

The mixing ratio of microcement and water is usually 1:0.6 by weight, but it is desirable to adjust the dilution of the suspension according to the temperature difference.

After injection of braces, cure to avoid impact for more than 3 days.

In the case of microcement with a powder fineness of 6000㎠/g or more, the mixing ratio of the repair material is a weight ratio of microcement and water of 1:0.6. Mix and stir with a mixer to prepare a repair material. As a result of injecting the repair material and observing the concrete structure after curing, it was confirmed that the repair material was injected into the fine details of a wide range of cracks.

In the description of the present invention, “consolidation injection” is defined as a construction method in which repair material is strongly injected into the injection hole using hydraulic energy that can be freely controlled according to the internal environment of the cracked concrete layer.

Figure 2 is a structural diagram of the lower support according to an embodiment of the present invention.

As shown in Figure 2, the lower support 10 has a rectangular shape, a square frame 11 is coupled to the bottom, four pillars 12 are provided, and a horizontal support 14 is coupled in the middle. . At the top, the lower top plate (13) is coupled to four pillars (12). A plurality of fasteners 17 are provided on the lower upper plate 13 and serve to secure it when combined with the upper support 20.

Four wheels 16 for movement are installed at the bottom of the frame 11, and a plurality of fixtures 15 for fixing the lower support 10 to the ground are provided on both sides of the bottom.

Figure 3 is a structural diagram combining the lower support and the upper support.

In Figure 3, the lower support 10 and the upper support 20 are coupled by a fastener 17 provided on the lower upper plate 13. The upper support 20 is provided with four movable supports 24 that support the movable plate 22 and two pistons 25 installed in the middle. The first hydraulic power source 23 is connected to the first hydraulic hose 26 and the second hydraulic hose 27. The first hydraulic hose 26 and the second hydraulic hose 27 are respectively connected to the first hydraulic supply part 28 and the second hydraulic supply part 29 installed in the middle part of the upper support 20.

In one embodiment of the present invention, the first hydraulic supply unit 28 raises the upper support 20 when the manager pushes the control lever of the first hydraulic power source forward, and the second hydraulic supply unit 29 raises the first hydraulic power source when the manager pushes the control lever of the first hydraulic power source forward. When the control lever of the power source is pushed back, the upper support 20 is lowered.

Figure 11 is a photo of a remote controller that controls the top plate to move up and down.

In another embodiment of the present invention, when the manager presses the “up” button of the remote controller shown in FIG. 11, the piston 25 rises upward by hydraulic pressure, and at the same time, the moving support 24 rises and the moving plate 22 ) push up.

Meanwhile, when the manager presses the “down” button on the remote controller, the piston 25 moves down by hydraulic pressure, and the moving support 24 simultaneously moves down.

The reason why the piston 25 and the moving support 24 move up and down is because they are operated by hydraulic energy supplied to the first hydraulic supply unit 28 and the second hydraulic supply unit 29.

The remote controller shown in the photo of FIG. 11 is more convenient to use than the manual type, which has the effect of increasing work efficiency. The upper plate 30 shown in FIG. 4 is coupled to the upper part of the moving plate 22. The moving plate 22 raises the upper plate 30 as much as possible using hydraulic energy so that the upper plate 30 can come into close contact with the concrete structure that is the subject of crack repair.

Figure 4 is a configuration diagram of an upper support according to an embodiment of the present invention.

Shown in FIG. 4, the upper support 20 includes four movable supports 24 supporting the moving plate 22, two pistons 25 installed in the middle, and a first support 20 installed in the middle of the upper support 20. A first hydraulic hose (26) and a second hydraulic hose (27) connected to the first hydraulic supply unit (28) and the second hydraulic supply unit (29), respectively, and the first hydraulic supply unit (28) and the second hydraulic supply unit (29) It consists of a first hydraulic power source (23) each connected to.

The piston 25 and the moving support 24 move up and down by hydraulic energy. The upper plate 30 is coupled to the upper part of the moving plate 22. An injection hole 32 through which a repair material can be injected is provided in the center of the upper plate 30, and air caps 33 and 34 are provided on both sides.

An injection hose 35 is connected to the injection port 32, and the injection hose 35 is connected to the injection unit 40 shown in FIG. 6. It is possible to perform water leakage waterproofing work in which the repair material can be applied by strongly compressing it to the minute parts where cracks in the concrete structure have occurred through the injection hole 32 provided in the top plate 30.

Figure 5 is a configuration diagram of a top plate according to an embodiment of the present invention.

The top plate 30 shown in FIG. 5 is provided with a repair material injection port 32 and air caps 33 and 34, and an injection hose 35 is connected to the injection port 32. The injection hose 35 is coupled to an outlet provided at one end of the hydraulic injector 40 shown in FIG. 6. Reference numeral 31 denotes the frame of the upper plate.

Figure 6 is a configuration diagram of a hydraulic injector according to an embodiment of the present invention.

A repair material injection port 32 and air caps 33 and 34 are formed in the top frame 31 shown in FIG. 6, and the injection port 32 is connected to the injection hose 35. The injection hose 35 is coupled to an outlet provided at one end of the hydraulic injector 40. The second hydraulic hose 45 is connected to the other end of the hydraulic injector 40. Reference numeral 41 is a repair material injection port. Reference numeral 42 is an air cap.

Figure 7 is a configuration diagram of injecting a repair material into a hydraulic injector.

An injection hose 35 is connected to one end of the hydraulic injector 40 to the outlet, and the other end of the hydraulic injector 40 is connected to the second hydraulic hose 45. A repair material injection port 41 and an air cap 42 are formed in the body of the hydraulic injector 40.

Connect the funnel 43 to the injection port 41 and inject the manufactured repair material.

Reference numeral 42 is an air cap that discharges air within the hydraulic injector 40.

The mixer 50 is a manual type, and mixes cement and water at a weight ratio of 1:0.6 to prevent bubbles from forming. The contents contained in the blender 50 are diluted for 5 to 10 minutes to remove lumpy powder to prepare a repair material.

Figure 8 is a configuration diagram of a waterproofing construction device for injecting repair material into the upper plate.

In the structure shown on the left side of FIG. 8, the upper support 20 and the lower support 10 are coupled to the lower upper plate 13, and the upper plate 30 is coupled to the upper part of the moving plate 22.

The upper plate 30 is provided with an injection port 32 and air caps 33 and 34, an injection hose 35 is connected to the injection port 32, and the injection hose 35 is connected to the injection unit 40. connected. The upper support 20 includes four movable supports 24 supporting the movable plate 22 and two pistons 25 installed in the middle. The piston 25 and the moving support 24 move up and down with hydraulic energy.

The structure shown on the right side of FIG. 8 is equipped with a work table 60 and a second hydraulic power source 70. A hydraulic injector (40) is placed on the work table (60). An injection hose 35 is coupled to one end of the hydraulic injector 40, and the other end of the hydraulic injector 40 is connected to the second hydraulic hose 45. The second hydraulic hose 45 is connected to the second hydraulic power source 70.

A repair material injection port 41 and an air cap 42 are provided in the body of the hydraulic injector 40.

Hydraulic pressure generated from the second hydraulic power source 70 enters the hydraulic injector 40, and the repair material in the hydraulic injector 40 is supplied to the inlet 32 of the upper plate 30 through the hydraulic hose 35. . The repair material supplied to the injection port 32 can be strongly sprayed onto cracks in the concrete structure by hydraulic energy.

Concrete reinforcement work on cracks in a concrete structure can be performed using the waterproofing construction device of FIG. 8 according to an embodiment of the present invention.

Figure 9 is a configuration diagram of a rubber ring coupled around the upper surface of the top plate.

The upper plate 30 is provided with an injection port 32 and air caps 33 and 34, an injection hose 35 is connected to the injection port 32, and the injection hose 35 is connected to the injection unit 40. connected. A rubber ring (35) is coupled around the rectangular top plate (30). The rubber ring 35 serves to seal the repair material supplied to the injection port 32 so that it does not leak out when the repair material is strongly sprayed onto cracks in the concrete structure using hydraulic energy.

Figure 10 is a configuration diagram of a tensile reinforcement mesh disposed on the upper surface of the top plate.

The upper plate 30 is provided with an injection port 32 and air caps 33 and 34, an injection hose 35 is connected to the injection port 32, and the injection hose 35 is connected to the injection unit 40. connected. Mesh (36, 37) is provided at the bottom of the rectangular top plate (30). Attaching the tensile reinforcement mesh (36, 37) to the cracked part of the concrete structure to be repaired increases the tensile strength of the concrete cracked part, so the effect of waterproofing work can be maintained for a long period of time.

<Example>

As an embodiment of the present invention, a method of reinforcing concrete using a microcement crack repair material using the water leakage waterproofing construction device of FIG. 8 described above will be described.

The method of reinforcing concrete using a microcement crack repair material using the water leakage waterproofing device of the present invention consists of the following processes.

(A) The first process of checking the crack condition after cleaning the leaking area in the concrete structure.

(B) The second process of manufacturing repair material by mixing microcement and water at a weight ratio of 1:0.6.

(c) Third process of stirring microcement to inject repair material into the crack area

(d) The fourth process of injecting the repair material into the injection port of the upper plate using a hydraulic injector capable of adjusting the pressure depending on the injection condition.

(e) Apply the repair material supplied to the injection port of the top plate to the environment inside the cracked concrete layer.

The 5th process of compaction injection using hydraulic energy that can be freely controlled according to the injection.

(F) 6th process of attaching tensile reinforcement mesh to concrete cracks

(G) 7th process of applying repair material to the attached tensile reinforcement mesh part

(H) The 8th process of painting the cracked area with paint after the curing period of the applied repair material is over.

Although the preferred embodiments of the present invention have been described above, the scope of the present invention should be interpreted as extending to a range substantially equivalent to the embodiments of the present invention, and the technical field to which the invention belongs within the scope of the technical idea of the present invention Various modifications can be made by those skilled in the art.

The microcement crack repair material of the present invention is used as the main raw material, and the microcement repair material is consolidated and injected into the cracked area using an injector using a hydraulic machine to reinforce cracks in concrete structures. The water barrier effect is large, so it can be preserved for a long time, and the constructability is Because it is excellent, it has industrial applicability.

Claims (6)

A square frame 11 and four pillars 12 are provided at the bottom, a horizontal support 14 is connected in the middle, and the lower upper plate 13 is coupled to the four pillars 12;
Four wheels 16 for movement are installed at the bottom of the frame 11, a lower support 10 on both sides of which a plurality of fixtures 15 for fixing the lower support 10 to the ground are installed, and a moving plate Four movable supports (24) supporting (22),
Two pistons (25) installed on the lower upper plate (13) and a first hydraulic power source (23) that supplies hydraulic energy to move the pistons (25) up and down to move the moving plate (22) up and down, A first hydraulic hose (26) and a second hydraulic hose (27) that transmit hydraulic energy of the first hydraulic power source (23),
A first hydraulic supply unit (28) and a second hydraulic supply unit (29) installed in the middle of the upper support (20) connected to the first hydraulic hose (26) and the second hydraulic hose (27), respectively,
A plurality of fasteners 17 are provided on the lower upper plate 13, so that the lower support 10 is fastened and fixed to the upper support 20;
An upper plate 30 including an inlet 32 and air caps 33 and 34 is coupled to the upper part of the moving plate 22; An injection hose 35 is connected to the injection port 32, and the injection hose 35 is connected to the injection unit 40; In the water leak prevention device that consolidates and injects the repair material supplied to the injection port 32 into the cracked concrete layer using hydraulic energy,
It further includes a blender (50) for manufacturing the repair material, wherein the blender (50) is used to prepare the repair material by diluting the contents contained in the blender (50) for 5 to 10 minutes so that there is no lumpy powder,
It further includes a rubber ring (35) attached around the upper plate (30),
The rubber ring 35 seals the repair material supplied to the injection port 32 to prevent it from leaking out when the repair material is compacted and injected into cracks in the concrete structure using hydraulic energy;
A tensile reinforcing mesh (36, 37) is further included at the bottom of the top plate (30), and the tensile reinforcing mesh is attached to the concrete crack and applied as a repair material;
A water leakage waterproofing device using a microcement crack repair material, characterized in that the means for moving the piston (25) and the moving support (24) up and down is a remote controller.
delete delete delete A square frame 11 and four pillars 12 are provided at the bottom, a horizontal support 14 is connected in the middle, the lower upper plate 13 is coupled to the four pillars 12, and the frame 11 ) Four wheels 16 for movement are installed at the bottom, and a lower support 10 is installed on both sides with a plurality of fixtures 15 for fixing the lower support 10 to the ground, and a moving plate 22. Four moving supports 24, two pistons 25 installed on the lower upper plate 13, and hydraulic energy are used to move the pistons 25 up and down to move the moving plate 22 up and down. A first hydraulic power source 23 that supplies, a first hydraulic hose 26 and a second hydraulic hose 27 that transmit hydraulic energy of the first hydraulic power source 23, a first hydraulic hose 26, and A first hydraulic supply unit 28 and a second hydraulic supply unit 29 installed in the middle of the upper support 20 respectively connected to the second hydraulic hose 27, and a plurality of fasteners 17 on the lower upper plate 13. ) is provided, so that the lower support 10 is fastened and fixed to the upper support 20, and an upper plate 30 including an inlet 32 and air caps 33 and 34 is provided on the upper part of the moving plate 22. The injection hose 35 is connected to the injection port 32, the injection hose 35 is connected to the injection unit 40, and the repair material supplied to the injection port 32 is applied to the cracked concrete layer. Consolidation is injected using hydraulic energy,
It includes a rubber ring 35 attached to the circumference of the upper plate 30, and the rubber ring 35 injects the repair material supplied to the injection port 32 into a crack in the concrete structure by using hydraulic energy to apply an injection pressure of up to 20 kg/ When compacting and injecting into ㎠, the repair material is sealed to prevent it from leaking out;
A tensile reinforcing mesh (36, 37) is further included at the bottom of the top plate (30), and the tensile reinforcing mesh is attached to the concrete crack and applied as a repair material;
Using a water leakage waterproofing device, the means for moving the piston 25 and the moving support 24 up and down is a remote controller,
(A) The first process of checking the crack condition after cleaning the leaking area in the concrete structure.
(B) The second process of manufacturing repair material with a mixer by mixing microcement and water at a weight ratio of 1:0.6.
(c) Third process of stirring microcement to inject repair material into the crack area
(d) The fourth process of injecting the repair material into the injection port of the upper plate using a hydraulic injector capable of adjusting the pressure depending on the injection condition.
(E) The 5th process of compacting and injecting the repair material supplied into the injection port of the upper plate using hydraulic energy that can be freely controlled according to the internal environment of the cracked concrete layer.
(F) 6th process of attaching tensile reinforcement mesh to concrete cracks
(G) 7th process of applying repair material to the attached tensile reinforcement mesh part
(H) After the curing period of the applied repair material is over, the eighth process consists of painting the cracked area with paint. In the second process of (b) above, the contents in the mixer are diluted for 5 to 10 minutes to apply the repair material. A method of reinforcing concrete using a microcement crack repair material, characterized in that it is manufactured.





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