KR101607811B1

KR101607811B1 - Triplication Composite waterproofing method

Info

Publication number: KR101607811B1
Application number: KR1020150098297A
Authority: KR
Inventors: 조성민
Original assignee: 조성민; (주)다남산업
Priority date: 2015-07-10
Filing date: 2015-07-10
Publication date: 2016-03-30

Abstract

The present invention relates to a composite waterproofing method using epoxy, urethane, and sheet, and more particularly, to a composite waterproofing method in which epoxy and urethane are applied to the surface of a floor or a wall inside or outside a building, It is able to prevent cracks of concrete primarily because of excellent adhesive property, durability, chemical resistance and high strength to withstand high load which is a disadvantage of urethane. Urethane is excellent in adhesion, tensile, tearing strength and elongation, It is possible to prevent a crack (epoxy coated surface), and the protective sheet is excellent in elasticity, elongation, and restoring force, thereby preventing tertiary crack (urethane coating surface). In addition, since it is composed of epoxy, urethane and protective sheet, it is unnecessary to construct a waterproof layer protective material and the top coat is applied after curing for a certain period of time, thereby improving the waterproof performance by the top coat.

Description

Triplication Composite waterproofing method [

The present invention relates to a composite waterproofing method using epoxy, urethane, and sheet, and more particularly, to a composite waterproofing method in which epoxy and urethane are applied to the surface of a floor or a wall inside or outside a building, will be.

Generally, a waterproofing method is applied to a building or a civil engineering structure. In the conventional waterproofing method, a mortar layer or a base finish layer is formed by cement mortar mixed with cement and sand on various base materials, Coat the used primer. After drying the primer, a general sheet waterproof layer or a general coating waterproof layer is applied thereon. When the waterproofing or coating layer is completed, a protective mortar layer is laid using a cement mortar containing cement and sand for the purpose of protecting the waterproof layer. Then, in order to prevent lifting between the base substrate and the general sheet waterproof layer or the general coating film waterproof layer, the method is completed by placing a protective pressure layer using a concrete made of cement, sand and gravel. At this time, the base substrate is generally manufactured using concrete, wood, brick, steel frame, metal plate, synthetic resin plate, or the like. As the primers, asphalt, urethane, elastomeric polymer, and acrylic primer are the most commonly used. As the general sheet waterproof layer, mainly an asphalt-based sheet is used, and in general, one kind of waterproof layer is selected from urethane waterproofing, inorganic elastic coating waterproofing, acrylic rubber, and asphalt.

However, in the conventional waterproofing method, it is difficult to secure the waterproof property of the base material to be protected by the waterproofing agent and the water passed through the base material. In addition, primarily, the substrate substrate is exposed to various specific physical and chemical external environmental conditions and is directly or indirectly affected by each structure. Most modern buildings and civil engineering structures are mostly reinforced concrete and concrete structures, so they are subject to short-term water influences caused by various rainfall and long-term moisture effects due to groundwater. In addition, various acids, alkalis, chlorine, oil, pollutants contained in rainfall and groundwater cause the neutralization of the reinforced concrete structure and the durability degradation due to the corrosion of the reinforcing steel. Secondly, the remaining life of the reinforced concrete structure And the stability of the structure itself is deteriorated.

In order to solve the waterproofing problems of reinforced concrete structures due to rainfall and groundwater, most of reinforced concrete structures are waterproofed by using waterproof materials having various physical properties. Conventionally, conventional waterproofing work is applied by attaching a sheet waterproofing material to the surface of a structure such as concrete, or by applying a paint roller, a rubber brush or the like to the film waterproofing material. However, since the durability and the waterproofing performance of the waterproofing material itself are not sufficient, the waterproofing effect of the reinforced concrete structure can not be obtained simply by applying the conventional waterproofing material.

On the other hand, among the methods of waterproofing the roof of a building, the urethane waterproofing method is to form a roof of a building to be constructed, apply a primer, thoroughly impregnate the floor, dry the urethane waterproofing agent, This is because of its excellent stretchability and waterproof function of urethane coating to cover the fine cracks of concrete. However, it is necessary to work in the state of moisture, or to work at too low or high temperature and rapid temperature When the cracks of the rooftop concrete floor are relatively large, the applied urethane coating is damaged, continuously floated, and the waterproofing ability is lost. Further, when the urethane waterproofing method is applied to a parking lot where a lot of vehicles are installed, The Urethane coating is lifted and leakage occurs There has been a problem that the life span for high waterproofing construction is shortened.

Prior art documents relating to the conventional waterproofing method are disclosed in Korean Patent Laid-Open Publication No. 10-2002-0087242. The styrene-butadiene styrene resin and ceramic are used as a main component, and a solvent, a crosslinking agent, a filler, Discloses a coating film waterproofing material mainly composed of a styrene butadiene styrene resin mixed with ceramics, which is a coating film waterproofing material, and a manufacturing method thereof. However, the object of the above method is to improve the heat insulating function mainly by using ceramics, which is unsuitable for humid environments.

In addition, Korean Patent Laid-Open Publication No. 10-2002-0087236 discloses a rubber composition comprising 100 parts by weight of styrene-butadiene styrene resin, 200 to 400 parts by weight of xylene in 100 parts by weight of styrene-butadiene styrene resin and 40 to 70 parts by weight of rubber powder, 3 to 6 parts by weight of a reinforcing filler, 4 to 7 parts by weight of a cross-linking agent, 2 to 5 parts by weight of an antioxidant and 2 to 5 parts by weight of an antioxidant, based on a styrene-butadiene styrene resin A coating film waterproofing material and a manufacturing method thereof. However, the above method is resistant to cracks in the structure using rubber powder, so that bubbles are not generated after the application, but it is a solvent type product, which is unsuitable for humid environments of underground structures. In addition, the rubber used in the above has a problem of insufficient storage stability as a vulcanized rubber.

Disclosure of the Invention The present invention has been made to overcome the above-mentioned problems and to further improve the conventional techniques. It is an object of the present invention to provide a waterproofing method using epoxy, urethane and protective sheet capable of improving durability, improving workability, And to provide a triple composite waterproofing method which is required to secure waterproofing required in the field and construction of a waterproofing layer protection material.

As a solution for achieving the object of the present invention, there is a triple complex waterproofing method which is applied to a floor outside or inside a building to flatten the outside or inside of a building to be waterproofed and clean it; Applying an epoxy primer to the cleaned bottom and drying; A step of putting concrete cracks on the floor surface; Applying an epoxy-free clear seal; Urethane primary application and protective sheet adhesion step; Reinforcing the protective sheet; Urethane secondary application step; Top coating step.

In addition, the triple complex waterproofing method that is applied to the wall of the building is a step of clearing the floor of the building to be waterproofed and cleaned; Applying an epoxy primer to the cleaned wall and drying it; Applying an epoxy-free clear seal; Reinforcing a corner portion of the wall with a mesh nonwoven fabric; Urethane coating step; Top coating step.

The epoxy which is a constituent of the triple composite waterproofing method of the present invention is capable of primarily preventing cracks in concrete due to excellent adhesiveness, durability, chemical resistance, and strength to withstand high load which is a disadvantage of urethane, Secondary cracks (epoxy coated surface) can be prevented because the tear strength is high and the elongation is excellent. The protective sheet is excellent in elasticity, elongation, and restoring force, thereby preventing tertiary cracks (urethane coating surface). In addition, since it is composed of epoxy, urethane and protective sheet, it is unnecessary to construct a waterproof layer protective material and the top coat is applied after curing for a certain period of time, thereby improving the waterproof performance by the top coat.

Hereinafter, the present invention will be described in detail, but the present invention is not limited by the following description.

Hereinafter, the process will be described in detail.

First, a triple combined waterproofing method for constructing a floor on the outside or inside of a building according to the present invention will be described. Applying an epoxy primer to the cleaned bottom and drying; A step of putting concrete cracks on the floor surface; Applying an epoxy-free clear seal; Urethane primary application and protective sheet adhesion step; Reinforcing the protective sheet; Urethane secondary application step; Completion of waterproofing by top coating step.

First, the triple composite waterproofing method for constructing the outer surface of the building or the inner bottom of the building according to the present invention will be described in detail. First, the surface preparation step is to flatten the floor of the waterproofing material, The protruded parts are ground with a grinder. The concave or cracked parts are filled with mortar, sealant or resin. The floor is wiped with a cloth or brush, or air or water is sprayed to remove oil components, foreign matter, dust, etc. And the moisture is completely dried to further facilitate the subsequent step.

Next, in the step of applying the epoxy primer, the epoxy primer is applied. The thickness of the applied epoxy primer is applied in a range of 10 mm, and the impregnated epoxy primer is cured and dried. The above primer has a plurality of chemical reactors capable of causing adhesion, and is usually applied to the surface of a concrete slab, a wood material, and a steel material with an undercoat treatment agent in a waterproof layer construction to form a film on the lower layer, It has a feature that strengthens the binding force with the agent. After the primer has been applied, care must be taken to avoid foreign matter.

In the step of putting concrete cracks on the floor surface, the concave or cracked part together with the cracks on the floor surface is completed by filling with mortar, sealant or resin.

Next, the step of applying the epoxy-free solvent-resistant transparent sealer applies a solvent-free epoxy clear seal. Solvent-free epoxy is an epoxy which does not mix solvents but dilutes them with an organic solvent (curing agent) and dilutes them with a special diluent. The thickness is 3 to 5 mm.

Urethane first application and protective sheet adhesion step is applied polyurethane two-component sealant which is excellent in strength and waterproof function of coating film and has elasticity and externally exposed, and covers the bottom surface with protective sheet. The protective sheet is formed by attaching a synthetic resin film to a nonwoven fabric having a predetermined width of 1.5 to 3 mm and fixing the synthetic resin film attached to the bottom surface. Conversely, the nonwoven fabric is applied so as to face the upper surface opposite to the installation surface.

Next, the step of reinforcing the protective sheet is performed by laminating a protective sheet having a synthetic resin film attached to the nonwoven fabric and fixing the protective sheet. The synthetic resin film is applied so as to face the bottom surface, and the non- .

As described above, the protective sheet is reinforced to improve the dustproof function in addition to the waterproof function, thereby further improving the overall performance. The protective sheet composed of the nonwoven fabric and the synthetic resin film can be used as a waterproofing material and a coating material due to its waterproof, And the thickness is preferably limited to the range of 1.5 to 3 mm.

Next, the urethane secondary application step is carried out in the same manner as the urethane primary application, and a polyurethane two-component type sealant is applied. The polyurethane two-component sealant is applied to a thickness in the range of 3 mm.

Finally, in the top coating step, the topcoat is applied uniformly over a surface of the polyurethane 2-component type sealant twice, and dried. The topcoat used has a certain color and ultraviolet shielding function , Weather resistance, abrasion resistance, and chemical resistance are used to minimize damage to the inner bottom surface and the protective sheet due to the sun's ultraviolet rays, weather and temperature changes, external forces and the like.

When the applied topcoat is completely dried, the triple composite waterproofing method is performed on the bottom of the building or inside the building.

Next, the triple complex waterproofing method for building walls of a building according to the present invention will be described briefly. Applying an epoxy primer to the cleaned wall and drying it; Applying an epoxy-free clear seal; Reinforcing a corner portion of the wall; Urethane coating step; Completion of waterproofing by top coating step.

First, the triple composite waterproofing method for constructing a building wall according to the present invention will be described in detail. First, in the step of preparing the waterproofing structure, a waterproof waterproofing material, that is, a building wall is flattened and cleaned. Fill the area with a concave or cracked area with mortar, sealant or resin. Wipe the floor with a cloth or brush, or remove the oil component, foreign matter, dust, etc. by spraying air or water, Thereby facilitating subsequent steps.

Next, in the step of applying the epoxy primer, the epoxy primer is applied. The thickness of the applied epoxy primer is applied in a range of 10 mm, and the impregnated epoxy primer is cured and dried. After the primer has been applied, care must be taken to avoid foreign matter.

Next, the step of reinforcing the corners of the wall reinforces the corners of the wall by using a mesh nonwoven fabric, a nonwoven fabric, or a urethane putty.

The urethane coating step then applies a polyurethane two-component sealant. The polyurethane two-component sealant is applied to a thickness in the range of 3 mm.

In the top coating step, the topcoat is applied uniformly over a surface coated with the above-mentioned two-component polyurethane sealant and then dried. The topcoat used has a certain color and ultraviolet shielding function, and has weather resistance, abrasion resistance , And chemicals with good chemical resistance are used to minimize the damage of the inner bottom surface and the protective sheet due to the sun's ultraviolet rays, changes in climate and temperature, external force and the like. When the applied topcoat is completely dried, the triple complex waterproofing method for constructing the building wall is completed.

Claims

In a triple complex waterproofing method applied to a floor inside or outside of a building,
A leveling step of leveling and clearing the floor to be waterproofed;
Applying an epoxy primer to the cleaned bottom and drying;
A step of putting concrete cracks on the floor surface;
Applying an epoxy-free clear seal;
Urethane primary application and protective sheet adhesion step;
Reinforcing a protective sheet to laminate one layer by attaching a synthetic resin film to the nonwoven fabric;
Urethane secondary application step;
Wherein the epoxy primer is used as the primer and the UV primer is used as the top coating. The polyurethane two-component type sealant is used for the first and second urethane coatings, Wherein the protective sheet is fixed by attaching a synthetic resin film to a nonwoven fabric having a thickness in the range of 1.5 to 3 mm so that the synthetic resin film face is directed to the bottom face and the nonwoven fabric is applied to face the upper face. Composite waterproofing method.

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In a triple composite waterproofing method applied to a wall surface inside or outside a building,
A desk cleaning step of flattening and clearing the wall to be waterproofed;
Applying an epoxy primer to the cleaned wall and drying it;
Applying an epoxy-free clear seal;
Reinforcing a corner portion of the wall by using a mesh nonwoven fabric, a nonwoven fabric, or a urethane putty;
Urethane coating step;
Wherein the primer is an epoxy primer and the top coating is a UV-blocking coating. The urethane coating is a polyurethane two-component sealant and the coating thickness is in the range of 3 mm Wherein the waterproofing method is applied to the waterproofing method.

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