KR20170048273A - Waterproofing method of outer wall of building to prevent cracking of building exterior wall and corrosion of steel structure - Google Patents

Abstract

The present invention relates to a waterproofing construction method for an outer wall of a building capable of preventing, in advance, a corrosion of a steel structure caused by leakage of water from an outer wall of an aged building and a consequent detachment of concrete around the steel structure; and capable of preventing cracks of an outer wall of the building. The present invention comprises: (S100) a step of forming an upper buried groove; (S200) a step of forming a lower buried groove; (S300) a taping step; (S400) a step of attaching a forming sheet; (S500) a step of processing a lower channel; (S600) a first drying step; (S700) an intermediate processing step; (S800) a second natural drying step; (S900) an upper channel processing step; (S1000) a third natural drying step; and (S1100) a finishing processing step.

Description

Technical Field [0001] The present invention relates to a waterproofing method for an outer wall of a building,

[0001] The present invention relates to a waterproofing method for building exterior walls capable of preventing cracks in building walls and corrosion of steel structures, and more particularly, The present invention relates to a waterproofing method for building exterior walls capable of preventing cracks in building outer walls and corrosion of steel structures that can prevent detachment of concrete in advance.

Generally, a building constructed using concrete such as a house, a multi-family house, a villa, an apartment, an office building, etc., can be seen that concrete is detached from most walls when about 20 to 30 years have elapsed.

Specifically, as shown in FIGS. 1 and 2, as the steel structure is corroded, the adhesive force between the concrete and the steel structure is weakened, so that the concrete is partially detached.

These concrete desorption sites are partially repaired because they are enlarged as time goes on, but they can not be a fundamental solution.

As described above, the phenomenon that the steel structure is corroded and the concrete is detached is caused by the leakage, so that the phenomenon as shown in FIGS. 1 and 2 occurs. Partial maintenance is not a fundamental solution but a post-repair.

Of course, in the case of a single-family house with a roof, the possibility of leakage may be low, but a building such as an apartment, an officetel, or a school without a roof has a phenomenon like Fig.

In order to solve these problems, various measures have been proposed in the related industry. For example, Japanese Patent Application No. 10-2015-0152897 filed on Nov. 2, 2015 (entitled " A construction method of a leaking portion formed on an upper end portion and an edge side of a building, and a construction method using the construction panel) and a patent application No. 10-2013-0002725 (entitled " .

The above-mentioned Patent Application No. 10-2015-0152897 and Patent Application No. 10-2013-0002725 disclose that a roof panel of a building is covered with a wide panel to block the leakage of water. However, the above- It is pointed out that the cost burden and the appearance image are not clean.

Accordingly, in order to solve the above-mentioned problems, the present invention proposes that at least one waterproof band is installed on the outer wall of the building to minimize leakage of rainwater into the outer wall of the building, thereby preventing water leakage, The present invention provides a waterproofing method for a building exterior wall which can prevent corrosion of concrete and detachment of concrete as well as preventing corrosion of a building exterior wall and corrosion of a steel structure which can further enhance the exterior wall image of the building. .

According to another aspect of the present invention, there is provided a method for preventing cracking of an outer wall of a building and corrosion of a steel structure,

Forming an upper buried groove (S100) for forming an upper buried groove (20) by cutting the entire outer wall to a depth of 1 to 3 cm in the lateral direction of the surface of the building outer wall (10) (S200) for forming a lower embedding groove (30) by cutting the entire outer wall to a depth of 1 to 3 cm in the horizontal direction at a lower end of 5 to 10 cm; A taping step S300 of attaching the tape 40 to prevent the elastic coat applied by the middle and upper processes from spreading; and a step S300 of applying the tape 40 to the lower end line of the lower buried groove 30 by a lower, middle, Attaching the molding sheet 60 having the adhesive property so that the rainwater guiding protrusion 50 is formed while preventing the elastic coat from spreading while preventing the elastic coat from spreading, In operation S400, (S500) of performing undercoating using an elastic coat between the lower buried groove 20 and the lower buried groove 30 and between the buried grooves 20 and 30, (S600) for forming a rainwater guiding protrusion (50) by subjecting the surface of the primer to an intermediate coating with an elastic coat diluted with a base and a hardener (S700) A second natural drying step (S800) in which natural drying is performed for 40 to 60 hours after the intermediate processing, a top processing step (S900) in which the intermediate coating is topcoated with an elastic coat diluted with a base and a hardener, A third natural drying step S1000 for performing natural drying for 1 to 2 hours after the topping process and a finishing process step for removing the tape 40 and the forming sheet 60 after the third natural drying, S1100), and after completion, it is completed on the outer wall of the building in the horizontal direction So that the shape of the band 100 having a waterproof function is formed.

In addition, a mesh belt 80 made of a mesh structure may be applied to reinforce the cohesive force between the undercoat, intermediate and upper elastic coats and to increase the adhesive force between any two selected processes of the undercoat, middle, The mesh belt 80 is inserted into the upper embedded grooves 20 and inserted into the lower embedded grooves 30 while being interposed therebetween.

Further, the elastic coat is characterized by being selected from urethane, silicone, and bioceramic resin.

In addition, the band 100 may be installed on the outer wall of the building in layers or two or three layers at a time.

According to the present invention having the above-described features, cracking of the outer wall of the building and prevention of corrosion of the steel structure can be minimized by minimizing penetration of rainwater flowing into the building through the outer wall of the building, , It is possible to prevent detachment of concrete caused thereby, thereby prolonging the life of the building and drastically reducing the maintenance cost.

Figs. 1 and 2 are photographs depicting the state of corrosion of reinforcing steel due to leaking water and partial detachment of concrete
FIG. 3 is a block diagram showing a construction process of a preferred embodiment of the present invention
4 is a cross-sectional view of a construction state showing a preferred embodiment of the present invention
FIG. 5 is a cross-sectional view showing a preferred embodiment of the present invention
6 is a cross-sectional view of a construction state according to another embodiment of the present invention
FIG. 7 is a diagram illustrating an example of a usage state of a preferred embodiment of the present invention

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and a preferred embodiment.

As shown in FIGS. 3 and 4, a method of waterproofing a building exterior wall, which can prevent cracks on the exterior wall of the building and corrosion of the iron structure, The entire outer wall is cut to form an upper buried groove 20 (S100).

In addition, the entire outer wall is cut to a depth of 1 to 3 cm in the lateral direction at a lower end of 5 to 10 cm with respect to the upper buried groove 20 to form a lower buried groove 30 (S200).

The upper buried groove and the lower buried groove perform a supporting force strengthening function so as to maintain the state that the elastic coat applied for the lower, middle, and upper portions is attached to the wall surface. When the known concrete cutting apparatus is applied, Can be formed.

When the buried groove is formed as described above, the tape 40 is attached to the upper end line of the upper buried groove 20 as shown in FIG. 4 (S300).

The tape 40 can prevent stains and smears caused by the elastic coat even when the elastic coat is applied to the outer wall of the building.

4, a molding sheet 60 having an adhesive property is attached to the lower end line of the lower embedded groove 30 (S400).

The forming sheet 60 is for forming a rainwater guiding projection 50 having a shape as shown in FIG. 5, and it is preferable to use a thicker material than the tape 40 attached to the upper end of the upper buried groove.

In addition to an end portion 70 that allows the rainwater guiding protrusion 50 to be formed.

The forming sheet 60 is also involved in forming the rainwater guiding protrusions 50, but also functions to prevent the elastic coat applied by the lower, middle, and upper processes from spreading.

When the process of attaching the tape 40 and the forming sheet 60 is completed as described above, an elastic coat is used between the upper and lower buried grooves 20 and 30 and the buried grooves 20 and 30 (S500).

Not only the undercoating but also the intermediate coat described below also applies the elastic coat between the respective buried grooves 20 and 30 and between them.

Herein, the elasticity coat refers to an elastic resin (coating material) commonly used in the art, and examples thereof include urethane, silicone, and a bioceramics resin. Of course, the present invention can be applied to any one selected, Also, since it is various, it is formed in the shape of a band 100 when it is installed on the outer wall of the building, so that the appearance image of the building can be further improved.

After the undercoating, the first natural drying is performed for 2 to 3 hours (S600), and when the natural drying is completed, the top surface of the undercoated surface is coated with an elastic coat diluted with a base and a hardener Thereby forming a rainwater guiding protrusion 50 (S700).

In addition, after the intermediate step is performed for the second natural drying (S800) for 40 to 60 hours, the surface of the intermediate coating is subjected to topcoating with an elastic coat diluted with a base and a hardener (S900).

The above-mentioned top-down process proceeds in the meaning of simple coating, and the rainwater guiding protrusion 50 is completely formed while proceeding with the actual middle process.

After performing the third natural drying (S1000) for 1 to 2 hours after the top-finishing process, the tape 40 and the formed sheet 60 are removed and the finishing process (S1100) is performed.

As shown in FIG. 7, when the construction is completed as described above, a band 100 having a waterproof function in the lateral direction is formed on the outer wall of the building. The rainwater guiding protrusion 50 prevents the rainwater from permeating the wall surface And induce them to fall to the ground.

Of course, the rainwater inducing protrusions 50 do not completely block the penetration of the rainwater into the wall surface, but the waterproof function is provided because the amount of rainwater penetration is minimized.

These strips 100 can be layered on the outer wall of the building or can be built one by two or three layers apart.

In order to reinforce the cohesive force and to increase the adhesion between the elastic coats for undergarment, middle and upper application, as shown in FIGS. 5 and 6, a mesh belt (80) can be constructed.

Since the mesh belt 80 is inserted into the upper embedded grooves 20 and inserted into the lower embedded grooves 30 while being interposed therebetween, the cohesive force of the elastic coats and the adhesion to the existing outer walls Can be improved.

10: building outer wall 20: upper buried groove
30: lower buried groove 40: tape
50: rainwater guiding projection 60: molded sheet
70: end portion 80: mesh belt
90: Reinforced Corrosion and Concrete Desorption Part
100: band
S100: Upper buried groove forming step
S200: Lower buried groove forming step
S300: taping step
S400: Step of attaching a molded sheet
S500: Substrate processing step
S600: Primary drying step
S700: Moderate process steps
S800: Secondary drying step
S900: Top phase process step
S1000: Third drying step
S1100: Finishing step

Claims (4)

An upper buried groove forming step (S100) for forming an upper buried groove (20) by cutting the entire outer wall to a depth of 1 to 3 cm in the lateral direction on the surface of the building outer wall (10)
A lower buried groove forming step (S200) of forming a lower buried groove (30) by cutting the entire outer wall to a depth of 1 to 3 cm in a lateral direction at a lower end of 5 to 10 cm from the upper buried groove (20)
A taping step (S300) of attaching a tape (40) to an upper end line of the upper buried groove (20) in order to prevent an elastic coat applied by a lower, middle,
The molding sheet 60 having adhesive property is attached so that the rainwater guiding protrusion 50 is formed while preventing the elastic coat applied by the lower, middle, and upper processes from spreading on the lower end line of the lower embedded groove 30, A molding sheet attaching step (S400) of attaching the mold sheet in two layers at regular intervals so as to form the end portion (70)
(S500) of performing undercoating between the upper buried groove 20, the lower buried groove 30 and the buried grooves 20, 30 using an elastic coat;
A primary drying step (S600) for naturally drying for 2 to 3 hours after the priming step;
An intermediate process step (S700) of forming a rainwater guiding protrusion (50) by applying an intermediate coat with an elastic coat diluted with a base and a hardener on the surface to be primed,
A second natural drying step (S800) in which the natural drying is performed for 40 to 60 hours after the intermediate processing,
(S900) of applying a top coat to the surface of the intermediate coat with an elastic coat diluted with a base and a curing agent;
A third natural drying step (S1000) in which natural drying is performed for 1 to 2 hours after the above-mentioned top-
A finishing treatment step (S1100) of performing the finishing treatment by removing the tape (40) and the formed sheet (60) after the third natural drying;
And after the completion of the building, a shape of a band 100 having a waterproof function in a lateral direction is formed on the outer wall of the building. The building is capable of preventing cracks on the outer wall of the building and corrosion of the steel structure External wall waterproofing method.
The method according to claim 1,
A mesh belt 80 made of a mesh structure may be applied to reinforce the cohesive force between the elastic coatings for the lower, middle, and upper application and to increase the adhesion between any two of the above-mentioned lower, middle and upper steps, The belt 80 is inserted into the lower buried groove 30 while being inserted into the upper buried groove 20, so that the belt 80 can be inserted into the lower buried groove 30, Waterproof construction method of building exterior wall that can prevent. The method according to claim 1,
Wherein the elastic coat is one selected from urethane, silicone, and bioceramic resin, and is capable of preventing cracks on the outer wall of the building and corrosion of the steel structure.
The method according to claim 1,
The method according to any one of claims 1 to 3, wherein the belt (100) can be installed on the outer wall of the building one by one or two or three layers apart.

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