KR101638620B1

KR101638620B1 - A methode for waterproofing

Info

Publication number: KR101638620B1
Application number: KR1020150139341A
Authority: KR
Inventors: 김정일; 도민규; 곽규성; 도광구; 손성환; 윤성민
Original assignee: 삼성물산 주식회사; 지씨피코리아 주식회사; 주식회사 비티에이 코리아
Priority date: 2015-10-02
Filing date: 2015-10-02
Publication date: 2016-07-12

Abstract

The present invention relates to a complex waterproofing method, which is to obtain economical benefits by conducting one-day construction by rapidly conducting the construction and simplifying a process using mechanical construction, rapid hardening, and self adhesion. The complex waterproofing method includes: a primer coating step of forming a primer layer by applying rapid hardening primer of automatic surface treatment on a construction surface using a spray; a membrane waterproofing material applying step of forming a membrane waterproofing layer by applying a rapid hardening membrane waterproofing material on the upper surface of the primer layer using the spray, when the primer layer is formed on the construction surface in the primer coating step; a sheet layer forming step of forming a sheet layer by laminating a self adhesion sheet on the upper part of the membrane waterproofing layer when the membrane waterproofing layer is formed on the upper part of the primer layer in the membrane waterproofing material applying step; and a sealant end treatment step of sealing a part in contact with external air in the sheet layer, the primer layer, and the membrane waterproofing layer against the outside using a sealant.

Description

A methode for waterproofing

The present invention relates to a composite waterproofing method for waterproofing a surface of a building such as a roof of a building or a floor of a parking lot, and more particularly, to a waterproofing method for waterproofing the surface of a building by simplifying and simplifying the process through mechanical construction, rapid curing, The present invention relates to a composite waterproofing construction method capable of realizing an economic benefit by implementing a one-day construction.

Generally, due to development of construction technology and development of civil engineering technology, building waterproofing technology can be applied to various types of waterproofing methods such as conventional sheet waterproofing, concrete waterproofing, film waterproofing, asphalt waterproofing, metal plate waterproofing and improved asphalt sheet waterproofing Technology has been developed.

However, according to each method, each feature and specification has problems.

That is, the difference in effect after the construction, the labor cost problem at the time of re-construction, convenience of construction, problems of aging and deterioration due to ultraviolet rays, problems of water absorption and water repellency and adhesiveness with adherends, Economy is becoming a problem in the building maintenance industry and waterproofing industry.

Among these waterproofing methods, the sheet waterproofing method is a method in which a waterproofing material is formed into a sheet having a certain thickness and width and adhered to a waterproofing surface at a construction site to form a waterproof layer.

The sheet waterproofing method is easy to implement necessary physical properties through various laminated structures in the production of a sheet, and is easy in construction. However, it is difficult to construct a complicated part, difficult to repair partly, It is difficult to seal seams between the sheets manually. Therefore, sheets of various materials and methods using them have been researched and developed.

And, there are various construction methods depending on the type of material, but the most widely used method is polyurethane waterproofing method.

In the polyurethane waterproofing method, the floor to be constructed is arranged, and the primer is applied to the floor to sufficiently penetrate the floor, and then the liquid polyurethane resin is applied to the bottom surface, followed by drying and curing to form a polyurethane coating And waterproofing it through it.

Such a polyurethane waterproofing method is excellent in stretchability and can maintain a certain degree of waterproof performance against cracks in the underground. It is relatively easy to construct in a narrow place or a complicated part, and it is possible to perform seamless construction, There is an easy advantage.

However, since it is a close-contact method which is in close contact with the ground surface such as a concrete surface, it is difficult to fundamentally solve the crack of the foundation, and the polyurethane coating film formed is damaged during the cracking and is continuously exposed.

In addition, since the coating liquid is applied in a liquid state in a work process and flowability is good, the thickness of the coating film may be uneven due to the curvature of the bottom surface, and the thickness of the coating film should be sufficiently formed.

Recently, in order to maximize the advantages of the sheet waterproofing method and the polyurethane waterproofing method as described above and to compensate for the disadvantages, various waterproofing methods using the sheet waterproofing method and the polyurethane waterproofing method have been developed and applied variously.

Korean Patent Registration No. 10-0804677 (name: roof-top waterproofing layer and waterproofing method using a self-assembled composite waterproof sheet) discloses a rooftop waterproofing method using a self-assembled composite waterproof sheet, Forming a composite waterproof sheet layer by arranging at least one or more self-adhesive composite waterproof sheets on which the joints of a homogeneous material are adhered to each other on a surface of the Bata substrate; And a step of forming a coating film waterproofing material layer so as to reinforce the adhering composite waterproofing sheet layer by impregnating the environmentally friendly inorganic coating film waterproofing material in the depth direction inside the matted composite waterproofing sheet layer.

In Korean Patent Registration No. 10-0971254 (titled "Adhesion-free adiabatic waterproof seeking method and waterproofing method using the same"), as described in the publication, Applying a primer onto the base substrate; Applying a reinforcing sheet made of an autoclave type non-vulcanizable rubber layer containing butyl rubber (IIR) as a main polymer at a predetermined position and containing a reinforcing material filler anti-aging material; Forming a waterproofing waterproofing sheet on the entire surface of a base material to form a primary waterproofing layer; And a step of applying an elastic heat insulating coating material waterproofing material onto the heat insulating sheet at the seamed food end to form a secondary coating waterproofing layer integrated seamlessly.

In addition, Korean Patent Registration No. 10-1281533 (entitled "Method for insulating and waterproofing a roof structure using a composite sheet"), as disclosed in the publication, includes a step of arranging a base for evenly treating a bottom surface of a concrete base, Applying a primer on the bottom of the consolidated concrete matrix, providing a perforated nonwoven fabric having apertures, applying high viscosity polyurethane on the perforated nonwoven fabric, installing composite sheets on the applied polyurethane , Coating the composite sheets and the entire gap with polyurethane, and forming a top coating for ultraviolet shielding on the polyurethane.

1. Korean Patent Registration No. 10-0804677 2. Korean Patent Registration No. 10-0971254 3. Korean Patent Registration No. 10-1281533

However, the conventional waterproofing methods as described above have a problem in that the curing time of the primer (at least 24 hours) is long and the whole construction time is increased.

In addition, there is a problem that the quality of construction, which causes deterioration of the toughening on the contact portion with the joint and the outside air and leakage phenomenon, is poor.

SUMMARY OF THE INVENTION The present invention has been proposed in order to solve the above-mentioned problems of the prior art. It is an object of the present invention to provide a method and apparatus for constructing a single-day construction by simplifying a process through mechanical construction, rapid curing, The present invention also provides a composite waterproofing method capable of improving the quality of construction by preventing deterioration and leakage of oil on the joints with the joints and the outside air.

In order to accomplish the above object, according to the present invention, there is provided a combined waterproofing method comprising: A primer applying step of applying an automatic surface treatment fast curing primer on a construction surface through a spray to form a primer layer; A coating film waterproofing step of applying a fast curing type coating material waterproofing material to the top surface of the primer layer through a spray when the primer layer is formed on the surface through the primer coating step to form a coating waterproof layer; And a sheet layer forming step of forming a sheet layer by laminating an electrophoretic sheet on the top of the film waterproof layer when a coating film waterproof layer is formed on the primer layer through the coating waterproofing step described above; And a sealant finishing step of sealing the outside of the primer layer, the coating film waterproofing layer, and the sheet layer in contact with the outside air through a sealant.

The above-mentioned automatic surface treatment quick-setting primer is characterized in that it is composed of polyepoxide at a very low speed.

The fast-curing type coating film waterproofing material is characterized in that it is made of a hybrid polyurethane.

Said hybrid polyurethane comprises a curing agent comprising a polymeric polyol, a chain extender and a filler, the composition comprising 30 to 70% by weight of an isocyanate compound and 30 to 70% by weight of a polymer polyol, .

And a finishing step of applying a waterproof protective layer to the upper part of the sheet layer formed through the sheet layer forming step and forming a concrete pressing layer on the waterproof protective layer.

The above-mentioned sealant is characterized by being made of polyurethane.

The combined waterproofing method of the present invention as described above has an effect of realizing economical benefit by implementing a one-day construction through mechanical work using spray and quick curing.

In addition, since the main components are sealed through the sealant, the degreasing and leaking phenomenon does not occur, thereby improving the installation quality.

1 is a schematic view showing a composite waterproofing method according to an embodiment of the present invention;
2 is a schematic view showing a construction method for a flat surface to which a composite waterproofing method according to the present embodiment is applied;
FIG. 3 is a schematic view showing a method of applying a composite waterproofing method according to the present embodiment to a surface on which a fixture such as an anchor is placed.
Fig. 4 is a schematic view showing a construction method for a surface of a portion where a horizontal surface and a vertical surface are in contact, to which a composite waterproofing method according to the present embodiment is applied.
FIG. 5 is a schematic view showing a method of applying a composite waterproofing method according to the present embodiment to a surface on which a penetrating structure such as a drain pipe is located.

Hereinafter, a composite waterproofing method according to a preferred embodiment of the present invention will be described in detail.

The embodiments of the present invention can be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. This embodiment is provided to more fully describe the present invention to those skilled in the art. Further, detailed descriptions of known functions and configurations that may be unnecessarily obscured by the gist of the present invention are omitted.

FIG. 1 is a view showing a composite waterproofing method according to an embodiment of the present invention. In the composite waterproofing method according to the present embodiment, an automatic surface treatment fast curing primer is applied to a construction surface 1 by spraying And a primer applying step (S100) for forming a primer layer (2).

That is, the primer layer 2 is formed by applying a primer through a spray not shown in the construction surface 1, and it is most preferable that the primer layer 2 is composed of a polyoxyepoxide at a very low speed.

Thus, the curing time is shortened by curing through a curing time of about 10 minutes.

In addition, since it is applied regardless of temperature, high-temperature treatment is unnecessary and the safety of the operator can be secured. Also, since it has a low viscosity, the gap between the pinhole and the surface is filled and the surface is strengthened, The processing is automatically performed without any additional work.

Thus, by implementing a one-day construction, economic benefits can be realized.

That is, conventionally, the primer is applied to remove the latency and other foreign substances on the surface and increase the adhesion to the surface, which has a problem that the pinhole or the dent portion can not be filled.

On the other hand, in the composite waterproofing method according to the present embodiment, the applied ultra low speed polyepoxy has a low viscosity and a thickness is formed, thereby filling a dent portion or a pin hole, thereby forming a glass surface.

In this case, the ultra low speed polyepoxy comprises a curing agent mixed in the same ratio as a subject and a subject, wherein the subject is mixed with an isocyanate and a solvent, and the curing agent is a mixture of an amine and an epoxy resin and a viscosity controlling agent.

That is, 50 to 80 parts by weight of isocyanate and 20 to 50 parts by weight of solvent are mixed with 100 parts by weight of the main component. To 100 parts by weight of the curing agent, 38 to 55 parts by weight of amine, 2 to 5 parts by weight of epoxy resin, 60 parts by weight are mixed, and the mixture of the main component and the curing agent is mixed at a ratio of 1: 1.

In this case, the amine is preferably used in an amount of 30 to 40 parts by weight of 3,5-Diethyltoluene-2,4 / 2,6-diamine, 5 to 10 parts by weight of 4,4 bis [2-chloroaniline] and 4,4'- 1-methylpropyl) benzenamine in an amount of 3 to 5 parts by weight.

In addition, the epoxy resin preferably comprises 4,4 '- (1-methylethylidene) bisphenol polymer with (chloromethyl) oxirane.

Accordingly, a curing rate which is several tens to several hundred times faster than the chemical reaction rate of the isocyanate and the polyol which are generally used in the chemical reaction between the isocyanate and the amine is realized.

Therefore, when sprayed on the construction surface, the coating layer having a thickness of about 1 to 2 mm is formed from the concrete floor within about 1 to 2 hours.

The composite waterproofing method according to this embodiment is characterized in that when the primer layer 2 is formed on the mounting surface 1 through the primer coating step S100, And a coating waterproofing coating step (S200) of coating the waterproofing material with spray (not shown) to form a coating waterproofing layer (3).

That is, the coating film waterproofing layer 3 is formed by applying a coating film waterproofing material to the top surface of the primer layer 2 through a spray, and it is most preferable to be composed of a hybrid polyurethane.

Wherein the hybrid polyurethane comprises a curing agent comprising a polymeric polyol, a chain extender and a filler, the composition comprising 30 to 70% by weight of an isocyanate compound and 30 to 70% by weight of a polymer polyol Is most preferable.

Examples of the isocyanate compound include toluene diisocyanate (TDI) such as 2,4-toluene diisocyanate and 2,6-toluene diisocyanate, methylene diphenyl diisocyanate (MDI) Hexadiene diisocyanate (HDI), and isophorone diisocyanate (IPDI). These may be used alone or in combination of two or more thereof.

The polymer polyol may be a polyether polyol, a polyester polyol, or the like.

In addition, polybutadiene diol, polytetramethylene ether diol, polypropylene oxide diol and triol, polybutyleneoxide diol, triol, etc. Can be used.

The curing agent may be synthesized by blending the polymer polyol with a chain extender, a filler, a pigment, a catalyst, and an additive.

First, a polyether polyol, a polyester polyol and the like can be used as the polymer polyol, and a polyether polyol having a molecular weight of 1,000 to 4,000, which is preferably excellent in water resistance, excellent in elasticity and excellent in abrasion resistance, can be used.

Further, polybutadiene diol, polytetramethylene ether diol, polypropylene oxide diol and triol, polybutylene oxide diol and triol can be used.

The chain extender may be an aliphatic diol or a diamine having a molecular weight of about 50 to 300 in order to increase the degree of bonding of the components and to provide excellent physical properties such as abrasion resistance and hardness.

Examples of the aliphatic diol include ethylene diol, 1,3-propanediol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, -Butanediol, 2,3-butanediol, 1,3-pentanediol, 1,2-hexanediol, 3-methylenepentane-1,5-diol, 1,9-nonanediol, , 8-diol, and 1,4-cyclohexanedimethanol.

Examples of the diamine include isophorone diamine, ethylenediamine, 1,2-propylenediamine, 1,3-propylenediamine, N-methylpropylene-1,3-diamine, N, N'-dimethylethylenediamine, Methylene-bis-2-chloroaniline, isobutyl-3,5-diamino-4-chlorobenzoate, trimethylene glycol-di-P- aminobenzoate, And diamines such as 2,6-diethylaniline, 3,5-dimethylcyano-2,4-toluenediamine and 3,5-diethyltoluene-2,4-diamine.

On the other hand, it is preferable to use a diamine chain extender in order to accelerate the reaction rate and improve the physical properties, but is not limited thereto.

As the filler, calcium carbonate that provides elasticity suitable for use in a waterproof material may be used as a filler.

On the other hand, each of the components constituting the curing agent contains 10 to 50% by weight of a polymer polyol, 1 to 5% by weight of a chain extender, 40 to 80% by weight of a filler, 1 to 5% Pigments, 0.1 to 1% by weight of additives and 0.1 to 2.0% by weight of catalysts.

Further, the mixed polyurethane composition may be used as a waterproofing material by mixing the base and the curing agent in a weight ratio ranging from 1: 1 to 1: 8.

As described above, the hybride-based polyurethane applied as a coating material waterproofing material constituting the composite waterproofing method according to the present embodiment can reduce the curing time relative to the conventional polyurethane, Mechanical construction (spraying) minimizes errors of constructors, facilitates on-site quality control, enhances elongation, enhances mobility, and provides various functionality to give performance.

The composite waterproofing method according to the present embodiment as described above is characterized in that when the film waterproofing layer 3 is formed on the primer layer 2 through the coating waterproofing step S200, (S300) for forming a sheet layer (4) by laminating an electrophoretic sheet on a substrate (1).

That is, the operator manually stacks the above-mentioned self-supporting sheet on the top of the coating film waterproofing layer 3 to form the sheet layer 4.

It is preferable that the self-supporting sheet is made of a sheet in which a bi-directional polyethylene film and a rubberized asphalt are combined. For example, Bituthene of Grace, USA is most preferable.

The composite waterproofing method according to the present embodiment is characterized in that a sealant 5 is applied to a portion of the primer layer 2, the film waterproofing layer 3 and the sheet layer 4, (S400) a sealant end treatment step to seal the outside through the through-hole.

That is, through the sealant 5, the degassing and leaking phenomena do not occur through the sealing of the main components to the outside, and the quality of the construction is improved.

It is preferable that the sealant 5 is made of polyurethane and the polyurethane is composed of 30 to 70% by weight of an isocyanate compound and 30 to 70% by weight of a polymer polyol, , A chain extender and a filler; The curing agent preferably comprises a composition comprising 10 to 50 wt% of a polymer polyol, 1 to 5 wt% of a chain extender, and 40 to 80 wt% of a filler.

The polymer polyol may be selected from the group consisting of polyether polyol, polyester polyol, polybuthadiene diol, polytetramethylene ether diol, polypropylene oxide diol, poly Propylene oxide triol, polybutyleneoxide diol, and polybutylene oxide triol. The polyfunctional isocyanate compound is preferably at least one selected from the group consisting of propylene oxide triol, polybutyleneoxide diol, and polybutylene oxide triol.

The chain extender is preferably composed of at least one of an aliphatic diol or a diamine.

The filler is preferably composed of at least one of calcium carbonate, amorphous silicon dioxide, bentonite, and powder obtained from dimethyl dioctadecyl ammonium salt.

As shown in FIG. 4, the sealant 5 has an irregular structure. The sealant 5 has a structure in which the primer layer 2, the water-repellent layer 3, and the end of the sheet layer 4, A gasket-like structure is applied to the fixture 10 such as an anchor or the like on the plane, as shown in FIGS. 3 and 5, 20 and the like so as to realize sealing against the outside.

As described above, the sealant (5) made of polyurethane is a sealant of Solvent Fee and DOP Free, and the VOC content and the content of the environmental hormone are extremely low, so that even if the asphalt leaks directly for a long period of time, liquefaction does not occur.

The composite waterproofing method according to the present embodiment is characterized in that the waterproof protective layer 6 is applied to the upper portion of the sheet layer 4 formed through the sheet layer forming step S300, And a finishing step S500 of forming a concrete pressing layer 7 on the upper portion of the concave portion.

As described above, the combined construction method according to the present embodiment includes a fast-curing primer for realizing mechanical simplification and quick curing through mechanical construction, rapid curing, and adhesion, a quick-setting type coating film waterproofing material, The present invention is characterized in that the sealing is achieved through the polyurethane sealant to prevent the degreasing and leakage phenomenon, thereby improving the quality of the construction.

It will be apparent to those skilled in the art that various modifications and equivalent arrangements may be made therein without departing from the scope of the present invention as defined by the appended claims and their equivalents. . Therefore, it is to be understood that the present invention is not limited to the above-described embodiments. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims. It is also to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

1: Installation surface 2: Primer layer
3: coat waterproof layer 4: sheet layer
5: sealant 6: waterproof protective layer
7: concrete press layer 10: fixture
20: Water pipe

Claims

A primer application step (S100) of applying a self-surface treatment quick-setting primer through a spray to the applied surface to form a primer layer; (S200) a coating film waterproofing step (S200) for forming a coating film waterproofing layer by applying a fast curing type coating film waterproofing material on the top surface of the primer layer through a spray when the primer layer is formed on the construction surface through the primer coating step; Forming a sheet layer on the top of the primer layer through the water-repellent coating step (S300); forming a sheet layer on the top of the water-repellent layer; A sealant finishing step (S400) of sealing the exterior through the sealant to a portion of the primer layer, the coating film waterproofing layer, and the sheet layer that is in contact with the outside air; And a finishing step (S500) of applying a waterproofing protective layer to the upper part of the sheet layer formed through the above-described sheet layer forming step (S300) and forming a concrete pressing layer on the waterproofing protecting layer (S500) In a construction method,
The above-mentioned automatic surface treatment speed curing primer is composed of a polyoxyepoxide at a very low speed,
Wherein the ultra low speed polyepoxy comprises a curing agent mixed in the same ratio as a subject and a subject, wherein the subject is mixed with an isocyanate and a solvent, the curing agent is a mixture of an amine and an epoxy resin and a viscosity controlling agent,
The ultra low speed polyepoxy may be,
50 to 80 parts by weight of an isocyanate and 20 to 50 parts by weight of a solvent are mixed with 100 parts by weight of a main component. 38 to 55 parts by weight of an amine, 2 to 5 parts by weight of an epoxy resin, 40 to 60 parts by weight of a viscosity adjusting agent And a mixture of a mixture of a base and a curing agent at a ratio of 1: 1,
The above-mentioned sealant is a polyurethane,
Like anchors, fixtures, and drain pipes in a planar manner so as to seal the outside of the primer layer 2, the film-waterproof layer 3, and the end portions of the sheet layer 4, Wherein the sealing member is disposed at a contact portion with the surface to realize sealing against the outside.

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The method of claim 1, further comprising:
The fast curing type coating film waterproofing material is composed of a hybrid polyurethane,
Wherein the hybrid polyurethane comprises a base comprising 30 to 70% by weight of an isocyanate compound and 30 to 70% by weight of a polymer polyol, and a curing agent comprising a polymer polyol, a chain extender and a filler A composite waterproofing construction method characterized by.

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