KR101186104B1 - Method for repairing expansion joint part between concrete structures using inducing conduct pipe - Google Patents

Abstract

PURPOSE: A method for repairing an expansion joint of a concrete structure using a drainpipe is provided to prevent safety accidents by preventing falling stones caused by deterioration. CONSTITUTION: A method for repairing an expansion joint of a concrete structure using a drainpipe is as follows. One surface or both surfaces of the joint of two concrete blocks are cut and grinded(S11). A perforated tube is fixed to the joint of the concrete blocks(S13). The spaces of the joint located at the top and bottom of the perforated tube are filled with water stopping mortar(S14). A hydrophilic sealing material is spread on the top of the water stopping mortar filled on the top of the perforated tube(S16). A high elastic wet caulking material is spread on the top of the hydrophilic sealing material, and the surface of the spread high elastic wet caulking material is parallel to the concrete blocks(S17). Glass fibers are embedded in the top of the concrete blocks and the high elastic wet caulking material using underwater hardening type epoxy resins(S19). A butyl elastic rubber is spread on the top of the underwater hardening type epoxy resins(S20). [Reference numerals] (AA) Start; (BB) Finish; (S11) Cutting and grinding; (S12) Installing a backup material; (S13) Installing a perforated tube; (S14) Filling water-stopping mortar; (S15) Spreading an underwater hardening type epoxy resin; (S16) Spreading a hydrophilic sealing material; (S17) Spreading a high-elastic wet epoxy caulking material; (S18) Spreading wet epoxy primer; (S19) Embedding glass fibers using underwater hardening type epoxy resins; (S20) Spreading a butyl elastic rubber sheet; (S21) Installing a stainless steel sheet

Description

Method for repairing expansion joint part between concrete structures using inducing conduct pipe}

The present invention relates to a method for repairing expansion joints of concrete structures using induction drainage pipes, and more particularly, to prevent a phenomenon in which joint parts of existing concrete structures are leaked due to deterioration and aging of joints between concrete blocks. The expansion joint repair method of a concrete structure using an induction drainage pipe for.

In general, concrete structures made by connecting U-pipe-shaped concrete blocks are installed in subways, water treatment plants, sewage treatment facilities and waterways or aqueducts, and underpasses of roads.

However, such concrete structures leak due to deterioration and aging due to the lapse of time and due to the temperature difference between the four seasons and corrosion by harmful sediment, or the loss of the function of joints between concrete blocks due to surrounding vibration. This causes water to fall off the joints from the joints and the subway or vehicles passing through it, which causes the appearance of dirty, and in winter, icicles or ice due to the ice caused by water leakage falls Large accidents are caused, and the lumps of concrete are peeled and peeled off under the leaks, which can cause hitting the vehicle and cause a big accident.In severe cases, the steel in the concrete structure can be corroded and permanently damaged. Adversely affect There was a problem that occurs.

Accordingly, in order to prevent water leakage from the joint of the concrete structure, as shown in FIG. 1, the fastener which is water-resistant to the joint 30 between the concrete blocks 10 and 20 which are the structures, as shown in FIG. The mortar 40 is filled, and silicon 50, which is a waterproofing material, is applied to the surface of the periphery of which the quick mortar 40 is filled.

However, when coupling the joint 30 between the concrete blocks 10 and 20 using the rapid mortar 40 and the silicon 50 as described above, the silicon 50 may be in a very humid area. This is to fall off, which causes a problem that the water leaks from the joint portion 30 occurs.

In addition, when looking at the repair method of the conventional concrete structure moving part as shown in Figure 2, filling the fastening mortar 40 of the exponent made in the joint 30 between the concrete blocks (10, 20), the rapid mortar 40 The caulking agent 33 is filled in the upper part of the c) to coincide with the surfaces of the concrete blocks 10 and 20, and then a stainless steel plate 55 or sealant is installed thereon.

However, when the stainless steel plate 55 and the caulking agent 33 is installed as described above, water leakage through the joint part 30 can be prevented for a predetermined time, but the stainless steel plate 55 and The caulking agent 33 is deteriorated and water leaks through the joint part 30, and an induction pipe for guiding water out is not installed so that induction of water is impossible and corrodes the steel reinforcing in the concrete structure. In some cases, there was a problem that the life of the concrete structure is shortened.

An object of the present invention for solving the problems as described above, due to the shrinkage expansion action of the concrete structure and even after a long time does not deteriorate and no water leakage occurs at the joint, the concrete structure mass due to deterioration The purpose of the present invention is to provide a method for repairing expansion joints for concrete structures using induction drainage pipes that can prevent falling accidents.

The expansion joint repair method of the concrete structure using the induction drainage pipe for preventing leakage occurring in the concrete structure joint according to an embodiment of the present invention for achieving the above object, in the joint of the two concrete blocks Cutting and grinding the corresponding one or both sides, and then washing the grind; Fixing the perforated tube to a joint between two concrete blocks spaced at a predetermined interval; Filling an exponential mortar, which is an initial payment, in the space between the upper and lower joints of the perforated pipe; Applying a water-expandable sealing agent to the upper portion of the index mortar filled in the upper portion of the hole tube; Applying a highly elastic wet caulking material at a thickness of 3 to 5 mm on the water-expandable sealing agent so that the coated surface is made flat with the concrete blocks; Impregnating glass fibers with epoxy resin for curing water on top of the concrete blocks and the high elastic wet caulking material; And applying a butyl elastic rubber sheet on the epoxy resin for curing in water.

According to an embodiment of the present invention, an epoxy resin for hardening in water between the cutting and grinder processing step and the step of installing the perforated pipe between the step of installing the backing material, the step of filling the index mortar and applying the water-expandable sealing agent The step of applying, the step of applying the high elastic wet caulking material and impregnating the glass fiber using the epoxy resin for curing in water or the step of applying a wet epoxide primer and attaching with the butyl elastic rubber sheet Next, the step of installing the stainless steel sheet is further configured.

According to an embodiment of the present invention, the water-expandable sealing agent is characterized in that the wet elastic silicone.

According to an embodiment of the present invention, the perforated tube is characterized in that it is made of a mesh form.

According to an embodiment of the present invention, the middle portion of the glass fiber is characterized in that the wrinkles are provided.

When the joints between the concrete blocks are joined using the expansion joint repair method of the concrete structure using the induction drainage pipe according to the embodiment of the present invention, the joints are not deteriorated due to the shrinkage expansion action of the concrete structure and even after a long time. By not leaking water at all, the concrete structure can be used while maintaining a beautiful state for a long time, and it provides an effect of preventing safety accidents by preventing falling of the mass of concrete structures due to deterioration.

1 and 2 is a schematic view showing the expansion joint repair method of a concrete structure using a conventional induction drain pipe.
Figure 3 is a flow chart showing the expansion joint repair method of the concrete structure using the induction drainage pipe according to an embodiment of the present invention.
4 to 10 is a schematic view showing a process of repairing the joints according to each step of the expansion joint repair method of the concrete structure using the induction drainage pipe according to an embodiment of the present invention.
Figure 11 is a schematic view showing a state in which the backup material and the epoxy resin for curing in water further installed in the expansion joint repair method of the concrete structure using the induction drainage pipe according to an embodiment of the present invention.
Figure 12 is a schematic diagram showing another form of glass fiber and additionally installed stainless steel plate in the expansion joint repair method of the concrete structure using the induction drainage pipe according to an embodiment of the present invention.
Figure 13 is a photograph showing a net-shaped hole in the expansion joint repair method of the concrete structure using the induction drainage pipe according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the embodiment of the expansion joint repair method of the concrete structure using the induction drainage pipe according to the present invention will be described in detail.

Figure 3 is a flow chart showing the expansion joint repair method of the concrete structure using the induction drainage pipe according to an embodiment of the present invention, Figures 4 to 10 is an expansion joint of the concrete structure using the induction drainage pipe according to an embodiment of the present invention Fig. 11 is a schematic view showing the process of repairing the joint according to each step of the repair method, Figure 11 is an epoxy resin for curing the backing material and curing in the expansion joint repair method of the concrete structure using the induction drainage pipe according to an embodiment of the present invention 12 is a schematic diagram showing a state in which the stainless steel sheet is additionally installed in the expansion joint repair method of the concrete structure using the induction drainage pipe according to an embodiment of the present invention, and is a schematic view showing another form of glass fiber, FIG. Expansion of the concrete structure using the induction drainage pipe according to an embodiment of the present invention Is a photograph showing a mesh shape of yugonggwan in STE repair method.

First, in the drawings, it is noted that the same components or parts are denoted by the same reference numerals as possible. In addition, in describing the present invention, a detailed description of related known functions or configurations will be omitted in order not to obscure the subject matter of the present invention.

In the expansion joint repair method of the concrete structure using the induction drainage pipe for preventing leakage occurring in the joints between the blocks of the concrete structure according to an embodiment of the present invention, as shown in the drawings, the perforated pipe 100, Concrete blocks composed of index mortar 200, water-expandable sealing agent 300, high elastic wet caulking material 400, epoxy resin for curing in water 500, butyl elastic rubber sheet 600 and glass fiber 800 It is also possible to combine the joint portion 30 between the (10, 20), to further use a backing material 150, a wet epoxy primer 700 and a stainless steel plate (900).

As shown in FIG. 4, the hole tube 100 is fixedly installed at the joint 30 between the concrete blocks 10 and 20 to discharge water from the joint 30 outside the concrete structure. , As shown in FIG. 13.

In addition, the hole tube 100 may be made of a plurality of hoses 101 are bundled in a bundle, as shown in FIG.

Therefore, the hole pipe 100 serves to discharge the water from the joint portion 30 without distilling it out, thereby preventing ice or icicles from falling off when water leaks through the joint portion 30 in winter. .

The exponential mortar 200 is installed in the upper and lower portions of the flow pipe 100 as shown in Figure 5 to prevent the leakage of water from the joint portion 30, using a super-freeze index agent.

The index mortar 200, which is a super-freeze index agent used in the present invention, is a super-freeze index material used in places where water, such as subways, drain boxes, tunnels, dams, basements, and swimming pools are subjected to high water pressure. By expressing the quickness index performance, the leak index from the seam 30 between the concrete blocks 10 and 20 is quickly indexed.

In addition, the super-freeze index material can be used easily by adding only water without special equipment, expressing a fast strength and provides a hardening and permanent effect.

As shown in FIG. 6, the water-expandable sealing agent 300 is applied to the joint 30 between the concrete blocks 10 and 20 at the top of the exponential mortar 200 and thus through the joint 30. It serves to prevent water from leaking out, which has excellent applicability to the water expansion process of the concrete structure, and when water leaks from the joint part 30, it may expand up to several times its own volume when it comes into contact with water. It has good adhesion with both the concrete blocks 10 and 20 and the index mortar 200.

In the present invention, the water-expandable sealing agent 300 was used as wet elastic silicone.

The high elastic wet caulking material 400 used a polyurethane resin having good fluidity, adhesion and water resistance, and is bonded to the upper portion of the water-expandable sealing agent 300 as shown in Figure 7 concrete blocks (10, 20) It is bonded in a flat state with the surface of the.

As shown in FIGS. 8 to 12, the glass fiber 800 is applied to the surface of the concrete blocks 10 and 20 and the upper portion of the high elastic wet caulking material 400 so as to be impregnated with the joint 30. It is to secure watertightness and airtightness to prevent water leakage from occurring, and it has a property that the curing proceeds rapidly even when it is in contact with water while maintaining a soft state.

In the middle portion of the glass fiber 800, as shown in Figure 12 is provided with a wrinkle portion 850 to be able to cope with elasticity during the stretching action of the concrete.

The butyl elastic rubber sheet 600 used butyl compound as a main material, which is shown in Figure 9, it is applied to a predetermined thickness on the upper portion of the glass fiber 800 by removing the release paper without the need for a separate adhesive It is preferably manufactured in the form of a self-adhesive tape that can be applied by applying 2 to 2.5 mm.

The wet epoxy primer 700 is used to reinforce the prevention of leakage generated from the joint 30, and is applied between the highly elastic wet caulking material 400 and the epoxy resin 500 for curing in water.

In the present invention, a wet epoxy primer 700 was used.

In addition, the lower portion of the perforated pipe 100 is further provided with a backing material 150 having a thickness equal to the width of the gap of the joint portion 30 to strengthen the prevention of leakage generated through the joint portion 30 ( 10 and 11).

In addition, between the oil hole 100 and the water-expandable sealing agent 300 is further applied by curing the epoxy resin 500 for curing in water to prevent leakage by curing when the water leaks.

In addition, by further applying a wet epoxy primer 700 between the high elastic wet caulking material 400 and the glass fiber 800 to enhance the adhesion even in the wet state.

In addition, the stainless steel plate 900 is installed at both ends of the upper portion of the butyl elastic rubber sheet 600, thereby strengthening the joint repairability of the joint part 30.

The method of repairing through the repairing materials of the concrete structure joint portion 30 according to the embodiment of the present invention having the above configuration will be briefly described with reference to FIG. 3.

First, one side surface corresponding to the seam 30 of the two concrete blocks 10 and 20 is cut and ground and washed (step S11);

The perforated pipe 100 is fixed to a joint 30 between two concrete blocks 10 and 20 spaced at predetermined intervals using a predetermined fixture (not shown) (step S13, see FIG. 4). .

Next, the exponential mortar 200 is filled in the space of the upper and lower joints 30 of the perforated pipe 100 (step S14, see FIG. 5).

Thereafter, the water-expandable sealing agent 300 is applied to the upper portion of the index mortar 200 filled in the upper portion of the perforated tube 100 (S16, see FIG. 6).

Then, the high elastic wet caulking material 400 is applied to the water-expandable sealing agent 300 to 3 to 5 mm , but the coated surface is made flat with the concrete blocks 10 and 20 (S17 step, see FIG. 7). ).

The glass blocks 800 are coated on the concrete blocks 10 and 20 and the high elastic wet caulking material 400 (S15, see FIG. 8).

Finally, the elastic butyl elastic rubber sheet 600 is applied to the epoxy resin 500 for curing in water (S16, see FIG. 9).

On the other hand, in the above embodiment, between the step (S11) of the cutting and grinder processing and the installation step (S13) of the perforated pipe 100 is a step (S12) is installed,

Between the step (S14) of filling the exponential mortar 200 and the step of applying with a water-expandable sealing agent 300 (S16) is the step of applying an epoxy resin 500 for curing in water (S15),

Between the step of applying the high elastic wet caulking material (400) (S17) and the impregnating the glass fiber (800) (S19), a wet epoxy primer (700) on top of the high elastic wet caulking material (400) Step of applying (S18),

Applying the butyl-elastic rubber sheet 600 (S20) and then the stainless steel plate 900 is installed (S21) is further configured to strengthen the water retention of the joint for the joint portion 30 of the concrete structure I was.

As described above, although the present invention has been described by a limited embodiment, the present invention is not limited thereto, and the present invention will be described below by the person skilled in the art to which the present invention pertains. Various modifications and variations are possible within the scope of the claims.

10, 20: concrete block 30: seam
100: merit pipe 101: hose
102: netting
150: backup material
200: index mortar 300: water-expandable sealing agent
400: highly elastic wet caulking material 500: epoxy resin for curing in water
600: butyl elastic rubber sheet 700: wet epoxy primer
800: glass fiber 900: stainless steel sheet

Claims (5)

In the expansion joint repair method of the concrete structure using the induction drainage pipe for preventing leakage occurring in the joint of the concrete structure,
Cutting and grinding one side or both sides corresponding to the joints 30 of the two concrete blocks 10 and 20 and then washing them (S11);
Fixing the hole tube 100 to the joint part 30 between two concrete blocks 10 and 20 spaced at a predetermined interval (S13);
Filling the exponential mortar (200), which is the initial payment, in the space of the upper and lower joints (30) of the hole (100) (S14);
Applying to the expansive mortar (200) the upper portion of the perforated pipe (100) with a water expandable sealing agent (300) (S16);
Applying a high elastic wet caulking material (400) to the upper portion of the water-expandable sealing agent (300) with a thickness of 3 to 5 mm (S17) to make the coated surface flat with the concrete blocks (10, 20);
Impregnating glass fibers (800) with epoxy resin for curing the water on top of the concrete blocks (10, 20) and the highly elastic wet caulking material (S19); And
Applying the butyl elastic rubber sheet 600 to the epoxy resin 500 for curing in water (S20); expansion joint repair method of the concrete structure using the induction drainage pipe, characterized in that consisting of The method of claim 1, wherein the step (S12) and the backup material 150 is installed between the cutting and grinder processing step (S11) and the installation step (S13) of the hole pipe 100,
Between the step (S14) of filling the exponential mortar 200 and the step of applying with a water-expandable sealing agent 300 (S16) is the step of applying an epoxy resin 500 for curing in water (S15),
Between the step of applying the high elastic wet caulking material (400) (S17) and the impregnating the glass fiber (800) (S19), a wet epoxy primer (700) on top of the high elastic wet caulking material (400) Step of applying (S18),
Repairing the expansion joint of the concrete structure using the induction drainage pipe, characterized in that further comprising the step (S20) of applying the butyl-elastic rubber sheet 600 (S20) is then installed (S21), the stainless steel sheet 900 Method. The method of claim 1, wherein the water-expandable sealing agent 300 is expansion joint repair method of the concrete structure using the induction drainage pipe, characterized in that the wet elastic silicone. The method of claim 1, wherein the perforated pipe 100 is expansion joint repair method of a concrete structure using an induction drainage pipe, characterized in that formed in the form of a mesh (102). The expansion joint repair method for a concrete structure using an induction drainage pipe, characterized in that the corrugated portion 850 is provided in the middle portion of the glass fiber (800).

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