WO2020054968A1 - Highly elastic inorganic filler for repairing and reinforcing cracked region to enable formation of waterproofing coating in painting of concrete building exterior wall, and a method for repairing and reinforcing cracked region by using same - Google Patents

Abstract

The present invention relates to a highly elastic inorganic filler for repairing and reinforcing a cracked region and a method for repairing and reinforcing a cracked region by using same, wherein the highly elastic inorganic filler can be efficiently used especially in a cracked region mainly generated on a building wall surface or a road surface, and can be used to form a waterproofing coating at the time of painting concrete building exterior walls to thereby make it possible to provide a clean appearance in cases of exterior painting and avoid as much as possible the inconvenience of frequent repairs. The reinforcement of the cracked region is attained by not only selectively employing a reinforcing unit provided in the present application but also applying, to the cracked region, a highly elastic inorganic filler formed by mixing: any one powder selected from a stone powder, a calcium carbonate powder, Portland cement, calcium sulfoaluminate-based cement, and blast furnace cement, which have a particle size of 100-200 mesh; a main material part resulting from the mixing of 45-55 wt% of ethylene vinyl acetate, 20-30 wt% of a diluent, 15-25 wt% of distilled water, 1-5 wt% of polyurethane, 1-5 wt% of rosin or rosin ester, and 0.05-0.3 wt% of a pH adjuster; and a setting accelerator, at a weight ratio of 1:0.4-0.6: 0.1-0.2.

Description

[Correction of 20.08.2019 under Article 26] Inorganic high elastic filler for repairing and repairing cracks that can form a waterproof coating film when painting exterior walls of concrete buildings

The present invention relates to an inorganic high-elasticity filler for repairing and repairing cracks that can form a waterproof coating film when painting an outer wall of a concrete building, and a method of repairing and repairing cracks using the same, and more specifically, to cracks that are mainly generated on the wall or road surface of a building. In particular, it can be used efficiently, and it provides a clean appearance when painting outside, and also prevents irrationality that requires frequent renovation. It is a mineral for reinforcing and repairing cracks that can form a waterproof coating when painting exterior walls of concrete buildings. It relates to a method for reinforcing and repairing cracks using a high elastic filler and the same.

In general, a newly constructed structure using concrete such as a house, a multi-family house, a villa, an apartment, and an officetel may occur on the roof of a building as shown in (a) of FIG. 1 and shown in (b) of FIG. 1. As shown in the figure, cracks 10 also occur on the wall surface of the building.

The cracks (10) generated as described above may be increasingly pointed out as a cause of leaks in buildings due to the gaps (20) becoming more and more over time. Moisture may occur or rain water may fall. When repairing this, it is completed by injecting a waterproof liquid or silicone into the crevice 20 of the crack or applying an elastic putty and then applying a waterproof liquid to the surface.

The putty is a paste-like bonding agent made of a colorant such as calcium carbonate powder, stone powder, zinc oxide, etc., with a colorant such as voile oil, oiliness, lacquer, and is used to fill a gap.

In addition, if the crevice with a large crack is formed, the liquid solution or silicone is forcibly injected using a packer, and then finished, but if the cracked part is a small gap leak of about 0.1 to 1 mm, in the same manner as above Since it is impossible to forcibly inject the waterproofing liquid or silicone, a hole is formed around the portion where the crack has occurred, and then the waterproofing liquid or silicone is forcibly injected through the hole to perform waterproof construction. After the incision was made using a waterproof solution or silicone was injected into the incision groove 30 to perform a waterproof construction.

As a result, when repairing a cracked portion, there is a common point that a crevice 20 or a hole in the crack is generally drilled to inject a waterproofing solution or silicone, for example, as a patent application No. 10-2012-0072812 (Name of invention: Method for waterproofing and repairing cracks in buildings).

In the patent application No. 10-2012-0072812, a plurality of diagonal holes are drilled around the crack to make urethane, silicone, foamed resin, or mortar into the hole, and a waterproofing agent mixed with a curing agent is injected. Next, a technique of repairing construction by sealing treatment using wood and cork is disclosed.

In addition, Korean Patent Application Publication No. 10-2015-0121836 describes a method for repairing a shortage of a reinforcing bar using an epoxy putty and an elastic epoxy and a section repairing the exposed portion. When reviewed schematically, the composition characterized by using the epoxy putty composition and the elastic epoxy composition together and mixing the subject and the curing agent of the epoxy putty composition is 1: 1,

Korean Patent Registration No. 10-0910322 describes a stone setting method of ornaments using epoxy putty, while Korean Patent Registration No. 10-1030281 describes a functional eco-friendly building putty, but when compared with the present invention It can be seen that only the term putty is similar, and the components and the like are completely different.

In particular, even if the cracked part is repaired using the putty as described above, since the cracked part is caused by subsidence or the influence of the surrounding environment, the cracked gap is gradually expanding. It is said that cracks are likely to occur in the future.

Accordingly, in the present invention, the above-mentioned problems were devised to eliminate the above problems, and while providing a strong adhesion to the existing concrete surface and simultaneously forming a waterproof coating film after application, by providing excellent adhesion and rigidity with the paint after repair and construction in the future. An object of the present invention is to provide an inorganic high-elasticity filler for repairing and repairing cracks that can form a waterproof coating film when painting the outer wall of a concrete building that can minimize rework by preventing recurrence, and to provide a method for repairing and repairing cracks using the same.

In order to achieve the above object, an inorganic high elastic filler for repair and reinforcement of cracks that can form a waterproof coating film when painting the outer wall of a concrete building of the present invention is stone powder having a particle size of 100 to 200 mesh, calcium carbonate powder, portland cement , Calcium sulfo aluminate-based cement, blast furnace cement, any one powder selected, ethylene vinyl acetate 45 to 55% by weight, diluent 20 to 30% by weight, distilled water 15 to 25% by weight, polyurethane 1 to 5% by weight, rosin Or 1 to 5% by weight of rosin ester, 0.05 to 0.3% by weight of the pH adjusting agent is characterized in that it is composed by mixing the main part and the quick-setting agent in a weight ratio of 1: 0.4 to 0.6: 0.1 to 0.2.

And when repairing the exterior wall of a concrete building, the method of repairing and repairing cracks using an inorganic high-elasticity filler for repairing cracks, which can form a waterproofing film, uses a concrete cutting machine in the cracks (20) where cracks (10) occurred in the direction of cracking. Reinforcing unit fixing space securing step (S100) to secure the incision groove 30 or / and the drilling groove 40 capable of inserting and fixing the reinforcing unit P, and the gap 20 in which the fixing unit fixing space is secured In the step of securing the space for fixing the reinforcing unit, the fine powder generated in the step of separating the fine powder generated by forcibly injecting water or air (S200), and the particle size of the gap (20) and the crack (10) from which the fine powder is removed 100 Stone powder, calcium carbonate powder, Portland cement, calcium sulfo aluminate-based cement, blast furnace cement having any of 200 to 200 mesh, and ethylene vinyl acetate Subject consisting of 45 to 55% by weight, 20 to 30% by weight of diluent, 15 to 25% by weight of distilled water, 1 to 5% by weight of polyurethane, 1 to 5% by weight of rosin or rosin ester, and 0.05 to 0.3% by weight of pH adjusting agent A primary inorganic high elastic filler coating step (S300) for coating an inorganic high elastic filler composed of a mixture of parts and rapid admixtures in a weight ratio of 1: 0.4 to 0.6: 0.1 to 0.2, and the incision groove after application of the primary inorganic high elastic filler ( 30) the mesh sheet fixing step (S400) for attaching and fixing the mesh sheet 60 to the inner floor of the inside, and the reinforcing unit in the incision groove 30 or / and the punching groove 40 formed in the securing space for the reinforcing unit 100) inserting and fixing the reinforcing unit fixing step (S500), and the curing step (S600) for curing the reinforcing unit so that the existing concrete surface 50 and the strong fixing state can be maintained, and the granularity after fixing the reinforcing unit 100 to 200 mesh Stone powder, calcium carbonate powder, Portland cement, calcium sulfo aluminate-based cement, blast furnace cement, and any one powder selected from 45 to 55% by weight of ethylene vinyl acetate, 20 to 30% by weight of diluent, and 15 to 25% by weight of distilled water %, 1 to 5% by weight of polyurethane, 1 to 5% by weight of rosin or rosin ester, and 0.05 to 0.3% by weight of a pH adjusting agent, in a weight ratio of 1: 0.4 to 0.6: 0.1 to 0.2 Secondary inorganic high elastic filler application step (S700) of applying the inorganic high elastic filler composed by mixing to the same height as the existing concrete surface 50, and finishing treatment to finish the surface of the construction part of the crack after applying the inorganic high elastic filler Characterized in that consisting of step (S800).

In addition, the reinforcing unit 110 for the incision groove inserted into the incision groove 30 of the reinforcing unit 100 is fastened and fixed to the fixing bolt 111 and the fixing bolt 111 which are fixed to be buried in the incision groove 30. It is composed of a plurality of fixing nuts 112 and the fixing block 113 fixed to the state in which the fixing bolt 111 passes between the fixing nut 112 and the wire 114 connecting the fixing block 113. ,

The fixing block 113 is formed of a plate of a flat plate while the wire connection groove 115 is formed so that the wire 114 can be a joint connection, and at the same time, when the fastening nut 112 is fastened, the wire 114 is a fixing bolt ( It characterized in that the insertion groove 116 into which the fixing bolt 111 is inserted is formed on one plate to be fixed integrally with 111).

In addition, the reinforcing unit 120 of the reinforcing unit 100, which is fixed to be inserted into the perforated groove 40 of the reinforcing unit 100, is bent in the shape of a 'c' shape, and is characterized in that it is inserted and fixed in the form of overlapping part in the longitudinal direction. Is done.

An inorganic high elastic filler for repairing and repairing cracks that can form a waterproof coating film when painting the outer wall of a concrete building of the present invention having the above characteristics and a method of repairing and repairing cracks using the same provide strong adhesion with existing concrete surfaces. Since a waterproof coating film is formed after application, it is possible to prevent leakage and at the same time to provide stiffness to minimize re-application due to recurrence, and to provide excellent adhesion with the paint for wall painting after repair and construction.

1 is an exemplary view showing a crack portion generated in a concrete structure

Figure 2 is a block diagram showing the repair process of one preferred embodiment of the present invention

Figure 3 is a front sectional view showing a state in which a cut groove of the preferred embodiment of the present invention is formed

Figure 4 is a cross-sectional view showing a state in which a perforated groove of the preferred embodiment of the present invention is formed

Figure 5 is a perspective view showing a reinforcement unit for the incision groove of the reinforcement unit of a preferred embodiment of the present invention

Figure 6 is a perspective view showing another embodiment of Figure 5

7 is a construction example showing a state in which the reinforcing unit for the incision groove according to the preferred embodiment of the present invention is installed

Figure 8 is a construction example showing a state in which the mesh sheet construction of a preferred embodiment of the present invention

9 is a construction example showing a state in which a reinforcing unit for a perforated groove is constructed among the reinforcing units of a preferred embodiment of the present invention.

Hereinafter, an inorganic high elastic filler for repairing and repairing cracks that can form a waterproof coating film when painting the outer wall of a concrete building of the present invention according to the accompanying drawings and preferred embodiments, and a method for repairing and repairing cracks using the same will be described in detail.

First, the inorganic high-elasticity filler for reinforcing cracks that can form a waterproof coating film when painting the outer wall of a concrete building provided by the present invention is stone powder, calcium carbonate powder, portland cement, calcium sulfo aluminum having a particle size of 100 to 200 mesh. Powder of any one selected from nate cement and blast furnace cement, 45 to 55% by weight of ethylene vinyl acetate, 20 to 30% by weight of diluent, 15 to 25% by weight of distilled water, 1 to 5% by weight of polyurethane, rosin or rosin ester 1 It consists of mixing 5 to 5% by weight of the pH adjusting agent and 0.05 to 0.3% by weight of the main part and the quick-setting agent in a weight ratio of 1: 0.4 to 0.6: 0.1 to 0.2.

The powder is a particle having a particle size of 100 to 200 mesh, that is, in the form of a powder, and is selected from any one selected from stone powder, calcium carbonate powder, portland cement, calcium sulfo aluminate cement, blast furnace cement, or two or more of them. It can be configured by.

Generally, when calcium carbonate is heated at a high temperature, calcium oxide (CaO) is generated and carbon dioxide is generated. Calcium oxide, the main component of concrete required to build various buildings such as apartments, is high in kilns by applying the properties of calcium carbonate. Obtained by heating to temperature. Calcium oxide contained in cement is converted to calcium hydroxide (Ca (OH) 2) by reacting with water, and after chemical reaction with aluminum and silicon salts, which are other components of cement, it hardens into a very hard material. Calcium oxide, the main raw material of cement, which is often used in construction, is obtained by heating calcium carbonate.

The blast furnace cement is a representative mixed cement made by mixing and crushing Portland cement and gypsum. First, the heat generated during the curing process of cement is low, the heat is high, the durability is high, the chemical resistance is high, and the water permeability is low. Because it has a characteristic, it is also used for mass concrete construction such as dams, lakes, drains, tunnels, and subway constructions, and is utilized in the present invention.

The calcium sulfo aluminate-based cement is used as an admixture of cement used for the purpose of preventing shrinkage due to hydration or drying of concrete or for introducing a chemical press stress.

And the main part of the inorganic high elastic filler is as follows.

<Ethylene vinyl acetate>

The ethylene vinyl acetate (EVA resin) included in the main part of the inorganic high elastic filler according to the present invention has an adhesive component, so that it is good for compatibility with existing concrete surfaces when applied to incision grooves and perforation grooves of cracks. At the same time, a coating layer is formed on the surface, so that a waterproof function can be provided, and 45 to 55% by weight of the total weight is added based on the main part of the filler.

<Diluent>

*

* The diluent included in the main part of the inorganic high elastic filler according to the present invention is used for stable emulsification of distilled water, polyurethane, and ethylene vinyl acetate, and the diluent according to the present invention is based on the main part of the entire inorganic high elastic filler 20 To 30% by weight is added, the diluent may be used any one or a mixture of alkyl polyglucoside (Alkyl Polyglucoside, APG), ethyl alcohol (ethyl alcohol).

<Distilled water>

The distilled water contained in the main part of the inorganic high-elasticity filler according to the present invention is used to ensure good mixing between the compositions introduced in the heating step, and it is preferable to use distilled water in a warm state at least above room temperature. The distilled water according to the invention is added 15 to 25% by weight based on the main part of the total inorganic high elastic filler.

<Polyurethane>

The polyurethane contained in the main part of the inorganic high-elasticity filler according to the present invention has an adhesive component as in ethylene vinyl acetate, so that evenly applied to the cracks, a coating film adhesive layer is formed on the surface of the incision groove in the cracks to provide a waterproof function. It is possible to perform 1 to 5% by weight of the total weight of the inorganic high elastic filler based on the main part.

<Rosin or rosin ester>

The rosin or rosin ester contained in the main part of the inorganic high-elasticity filler according to the present invention is a natural resin obtained by distilling rosin, with abietic acid as a main component, neoabietic acid, lepopymaric acid, hydroabietic acid, and pimaric acid・ Contains resin acids such as dextonic acid. When the filler of the present invention is applied to a crack portion, a coating film adhesive layer is formed on the crack portion, so that a waterproof effect can be expected, and an adhesive strength strengthening effect can also be expected. Based on the subject portion of the inorganic high elastic filler of the present invention, the total weight is 1 to 5% by weight is added.

<pH adjuster>

The pH adjusting agent included in the main part of the inorganic high elastic filler according to the present invention is used to maintain the neutrality of the composition, and 0.05 to 0.3% by weight based on the main part of the entire inorganic high elastic filler is added, and as the pH adjusting agent Triethanolamine (TEA) can be used.

In addition, the inorganic high-elasticity filler is 10 to 20% by weight relative to 100% by weight of the feeder, and is mixed with cement to promote condensation of concrete as a kind of admixture. Sodium carbonate, potassium carbonate, water glass, calcium chloride, and silicate What has sodium or the like as a main component can be used.

[Example 1]

First, 49.8 kg of ethylene vinyl acetate, 2.5 kg of polyurethane, and 20 kg of distilled water are added to a stirring vessel and heated at 50 to 60 ° C. for 100 to 150 minutes. After maintaining the heating temperature of 50 to 60 ° C, after 30 minutes, the rosin or rosin ester is added and stirred, and after 30 minutes, 25 kg of the diluent is added and stirred, and the pH adjuster is added after 30 minutes have elapsed. 200 g was added and stirred at the same time as heating at a temperature of 50 to 60 ° C. for 30 minutes, and cooled to room temperature to obtain a main portion of an inorganic high elastic filler.

50 kg of the main part of the inorganic high elastic filler prepared as described above, and 100 kg of blast furnace cement were prepared with a founder, and then 15 kg of the rapid setting agent was mixed to complete the inorganic high elastic filler of the present invention.

The inorganic high elastic filler of the present invention manufactured as described above is easy to package by weight unit, and the repair and reinforcement method for cracks using the same is as follows.

When the exterior wall of a concrete building is painted, a method of repairing and repairing cracks using an inorganic high-elastic filler for repairing and repairing cracks that can form a waterproofing film is applied to a concrete cutting machine in a gap (20) where cracks (10) have occurred as shown in FIG. By utilizing the formation of the incision groove 30 or / and the perforation groove 40 capable of inserting and fixing the reinforcement unit P in the crack generation direction, a space for fixing the reinforcement unit is secured (S100).

The incision groove and the perforation groove may utilize a known mechanical device.

In the gap 20 in which the space for fixing the reinforcing unit is secured, the fine powder generated in the step of securing the space for fixing the reinforcing unit is forcedly injected with water or air to remove it (S200).

If the fine powder remains unremoved, when the inorganic high elastic filler of the present invention is applied, there may be room for the adhesive strength to fall, so it must be completely removed.

When the fine powder is removed, any powder selected from stone powder, calcium carbonate powder, portland cement, calcium sulfo aluminate cement, and blast furnace cement having a particle size of 100 to 200 mesh in the gap 20 and crack 10 Wow, 45 to 55% by weight of ethylene vinyl acetate, 20 to 30% by weight of diluent, 15 to 25% by weight of distilled water, 1 to 5% by weight of polyurethane, 1 to 5% by weight of rosin or rosin ester, 0.05 to 0.3% by weight of pH adjusting agent The primary part and the quick-setting agent formed by mixing are first applied to the inorganic high elastic filler composed by mixing in a weight ratio of 1: 0.4 to 0.6: 0.1 to 0.2 (S300).

In the first application process, an inorganic high elastic filler is applied to the bottom of the incision groove and to the inside of the perforation groove.

After the primary inorganic high elastic filler is applied, the mesh sheet 60 is attached and fixed to the inner bottom of the incision groove 30 (S400), wherein the mesh sheet is a synthetic fiber mesh, a metallic mesh mesh, and a carbon fiber material. You can use any one selected from the mesh.

When the mesh sheet is attached and fixed as described above, the reinforcing unit 100 is inserted into and fixed to the incision groove 30 or / and the perforation groove 40 formed in the step of securing the reinforcing unit fixing space (S500).

In addition, the reinforcing unit is cured to maintain a strong fixed state with the existing concrete surface (50) (S600), stone powder having a particle size of 100 to 200 mesh, calcium carbonate powder, portland cement, calcium sulfo aluminum Powder of any one selected from nate cement and blast furnace cement, 45 to 55% by weight of ethylene vinyl acetate, 20 to 30% by weight of diluent, 15 to 25% by weight of distilled water, 1 to 5% by weight of polyurethane, rosin or rosin ester 1 To 5% by weight, a pH adjusting agent 0.05 to 0.3% by weight of the main part and the quick-setting agent consisting of a mixture of 1: 0.4 to 0.6: 0.1 to 0.2 by weight ratio of inorganic high-elastic filler composed of the same as the existing concrete surface 50 Secondary coating is performed at a height (S700).

When the second coating is completed as described above, at least the construction of the cracked portion is in a finished state, and the surface of the construction part is finished (S800) to provide a clean appearance when painting the outer wall surface, so that the repair and reinforcement construction is finally finished. do.

At this time, the reinforcing unit 100 may be divided into a reinforcing unit 110 for an incision groove that is inserted and fixed in the incision groove 30, and a reinforcing unit 120 for a perforated groove that is inserted and fixed in the aperture groove 40, and simultaneously Alternatively, it can be optionally employed.

More specifically, the reinforcing unit 110 for the incision groove, as shown in FIGS. 5 to 6, a fixing bolt 111 that is fixed to the incision groove 30 and a plurality of fixing nuts that are fastened and fixed to the fixing bolt 111. It is composed of a fixed block 113 and a wire 114 connecting the fixed block 113 to be fixed in a state in which the fixed bolt 111 is passed between the 112 and the fixed nut 112.

In addition, the fixing block 113 is formed of a plate of a flat plate while the wire 114 is formed so that the wire 114 can be a joint connection, and the wire 114 is fixed when the fastening nut 112 is fastened. Insertion grooves 116 into which the fixing bolts 111 are inserted are formed in one plate so that they can be fixed integrally with the bolts 111.

The reinforcing unit 110 for the incision groove as described above is to provide the convenience of work by simultaneously connecting the rigidity peculiar to the wire using a fixing block while simultaneously constructing the entire crack portion. The smallness of connecting the wire by winding it around the fixing bolt is unthinkable. When using a fixing block such as the present invention, it can be grafted to irregular cracks particularly efficiently, and at the same time, it is easy to connect the wires for a long time. It will be able to provide stiffness.

Further, the reinforcing unit 120 for a perforated groove that is fixed to be inserted into the perforated groove 40 is bent in a 'c' shape as shown in FIG. 9, and fixed and inserted into a form in which a portion overlaps in the longitudinal direction. Prevent rust by applying paint applied to the construction.

The reinforcing unit 100 can be applied to the site by adopting either the simultaneous or selected depending on the site location, and by performing the function of the skeleton when the filler of the present invention is applied, it is possible to prevent the filler from floating. Of course, it also performs the function of strengthening the adhesive strength with the existing concrete.

In addition, the mesh sheet 60 is able to block leaks to a certain level even if the gap is expanded by performing an elastic function.

The method for repairing and repairing cracks of the present invention as described above can be said to be remarkably suitable for cracks of 3 mm or more, and if the cracks are minute, the inorganic high elastic filler provided by the present invention can sufficiently repair the cracks.

Claims (4)

1. Stone powder having a particle size of 100 to 200 mesh, calcium carbonate powder, Portland cement, calcium sulfo aluminate cement, and any one powder selected from blast furnace cement,

   Ethylene vinyl acetate 45-55 wt%, diluent 20-30 wt%, distilled water 15-25 wt%, polyurethane 1-5 wt%, rosin or rosin ester 1-5 wt%, pH adjuster 0.05-0.3 wt% mixed The subject part composed by and

   An inorganic high-elastic filler for reinforcing and repairing cracks that can form a waterproof coating film when painting an exterior wall of a concrete building, characterized in that the quick-setting agent is mixed at a weight ratio of 1: 0.4 to 0.6: 0.1 to 0.2.
2. Fixing the reinforcement unit to secure the incision groove 30 or / and the perforation groove 40 capable of inserting and fixing the reinforcement unit P in the crack generation direction by utilizing a concrete cutter in the crevice 20 where the crack 10 has occurred. Space securing step (S100); Wow,

   A fine powder removal step of forcibly injecting or removing the fine powder generated in the step of securing the space for fixing the reinforcement unit into the gap 20 in which the space for fixing the reinforcement unit is secured (S200); Wow,

   Stone powder, calcium carbonate powder, portland cement, calcium sulfo aluminate cement, blast furnace cement having a particle size of 100 to 200 mesh in the gap 20 and the crack 10 where the fine powder is removed Wow,

   Ethylene vinyl acetate 45-55 wt%, diluent 20-30 wt%, distilled water 15-25 wt%, polyurethane 1-5 wt%, rosin or rosin ester 1-5 wt%, pH adjuster 0.05-0.3 wt% mixed The subject part composed by and

   A primary inorganic high-elastic filler coating step of applying an inorganic high-elastic filler composed by mixing the rapid setting agent in a weight ratio of 1: 0.4 to 0.6: 0.1 to 0.2 (S300); Wow,

   A mesh sheet fixing step of attaching and fixing the mesh sheet 60 to the inner bottom of the incision groove 30 after applying the primary inorganic high elastic filler (S400); Wow,

   A reinforcing unit fixing step (S500) of inserting and fixing the reinforcing unit 100 into the incision groove 30 or / and the perforated groove 40 formed in the securing space of the reinforcing unit; Wow,

   Curing step of curing the reinforcing unit so that the existing concrete surface 50 and a strong fixed state can be maintained (S600); Wow,

   After fixing the reinforcing unit, any powder selected from stone powder, calcium carbonate powder, portland cement, calcium sulfo aluminate cement, and blast furnace cement having a particle size of 100 to 200 mesh,

   Ethylene vinyl acetate 45-55 wt%, diluent 20-30 wt%, distilled water 15-25 wt%, polyurethane 1-5 wt%, rosin or rosin ester 1-5 wt%, pH adjuster 0.05-0.3 wt% mixed The subject part composed by and

   Secondary inorganic high elastic filler coating step (S700) of applying the inorganic high elastic filler composed by mixing the quick binder in a weight ratio of 1: 0.4 to 0.6: 0.1 to 0.2 to the same height as the existing concrete surface 50; Wow,

   A finishing step (S800) of finishing the surface of the construction part for the cracked area after applying the inorganic high elastic filler;

   A method of repairing and repairing cracks using an inorganic high-elasticity filler for repairing and repairing cracks, which can form a waterproof coating film when painting the outer wall of a concrete building.
3. According to claim 2,

   Among the reinforcing units 100, the reinforcing unit 110 for the incision grooves to which the incision groove 30 is inserted and fixed is fixed to the fixing bolt 111 fixed to the incision groove 30 and fixed to the fixing bolt 111. It is composed of a fixing block 112 and a wire 114 connecting the fixing block 113 fixed to the fixing bolt 111 through the fixing nut 112 and the fixing nut 112,

   The fixing block 113 is formed of a plate of a flat plate while the wire connection groove 115 is formed so that the wire 114 can be a joint connection, and at the same time, when the fastening nut 112 is fastened, the wire 114 is a fixing bolt ( Reinforcement of the cracks that can form a waterproof coating film when painting the outer wall of a concrete building, characterized in that the insertion grooves 116 into which the fixing bolts 111 are inserted are formed in one plate so that they can be integrally fixed with 111). Reinforcement method for repairing cracks using inorganic high elastic filler.
4. According to claim 2,

   Among the reinforcing units 100, the reinforcing unit 120 for a perforated groove that is fixed to be inserted into the perforated groove 40 is bent in a 'c' shape, and is inserted and fixed in a form in which a portion overlaps in the longitudinal direction. Reinforcement method for repairing cracks using inorganic high-elasticity fillers for repairing cracks that can form waterproofing coatings when painting exterior walls of concrete buildings

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