KR102485196B1 - Composite waterproof structure - Google Patents

Abstract

The present invention relates to a composite waterproof structure including anticorrosion performance. The disclosed composite waterproof structure comprises: a primer layer; a sealing material disposed on a connection part of an adjacent anticorrosive sheet to connect the anticorrosive sheet including an adhesive layer adhered on the primer layer and the adjacent anticorrosive sheet; and a fiber reinforcing material covering the sealing material. An objective of the present invention is to provide the composite waterproof structure which can stably maintain durability of a building.

Description

Composite waterproof structure including anti-corrosion performance {Composite waterproof structure}

The present invention relates to a composite waterproof structure that includes anticorrosive properties.

Recently, an artificial ground greening system for forming a waterproof layer on various structures and creating a green area has been widely applied. For example, a green area may be created on a roof of a building, an outer wall of an underground structure, or an upper slab. However, if moisture or plant roots penetrate after the installation of such an artificial ground greening system, the durability of the structure may be greatly deteriorated. Accordingly, in the case of applying the artificial ground greening system, a process for improving waterproof characteristics and anti-corrosion characteristics is performed.

For example, in the prior art, a method of installing a waterproofing layer having waterproof characteristics and separately constructing an anticorrosive material having anticorrosive characteristics was applied. According to this construction method, the entire construction process is very complicated, and the construction quality may vary depending on the skill level of the site worker, making it difficult to secure uniform construction quality.

As a result, it is possible to solve the problem of inefficiency due to the double construction process of additionally constructing a waterproof layer and an anticorrosive layer by having both waterproof and anticorrosive properties, and the demand for a construction method that does not require mixing and using wet materials at the site. is increasing.

An object of the present invention is to provide a possible composite waterproof structure capable of stably maintaining the durability of a building while implementing a green roof system.

On the other hand, the technical problems to be achieved in the present invention are not limited to the above-mentioned technical problems, and other technical problems that are not mentioned will become clear to those skilled in the art from the description below. You will be able to understand.

A composite waterproof structure according to an embodiment of the present invention includes a primer layer; A sealing material disposed on the connection portion of the adjacent anticorrosive sheet to connect the anticorrosive sheet including the adhesive layer adhered on the primer layer and the adjacent anticorrosive sheet; and a fiber reinforcing material covering the sealing material.

In addition, it may further include; a non-total urethane layer disposed on the anti-corrosive sheet and the fiber reinforcing material.

In addition, the anticorrosion sheet may include a reinforcing layer, a fiber layer attached to both sides of the reinforcing layer, and an adhesive layer impregnated in the fiber layer below the reinforcing layer.

In addition, the adhesive layer includes 50 to 60 parts by weight of asphalt, 10 to 15 parts by weight of styrene butadiene styrene, 5 to 10 parts by weight of butyl rubber, 3 to 5 parts by weight of process oil, 1 to 3 parts by weight of an adhesive agent, and 1 oil absorbent to 3 parts by weight, 5 to 15 parts by weight of a filler, 3 to 5 parts by weight of aluminum stearate, 3 to 5 parts by weight of an antioxidant, and 3 to 5 parts by weight of other additives.

In addition, the sealing material may be composed of an unsaturated polyester resin.

In addition, the fiber reinforcing material may be configured by mixing a soft type FRP resin and glass fibers.

In addition, the nontal urethane is composed of a mixture of a first solution and a second solution, and the first solution includes 65 to 87 parts by weight of a prepolymer, 5 to 12 parts by weight of a plasticizer and 1 to 15 parts by weight of other additives, The second solution contains 50 to 60 parts by weight of calcium carbonate, 10 to 20 parts by weight of polyol (PPG), 1 to 10 parts by weight of a plasticizer, 0.1 to 2 parts by weight of an accelerator, 0.1 to 2 parts by weight of a pigment, and 1 to 2 parts by weight of other additives. 15 parts by weight.

According to the embodiment of the present invention, cracks and falling off are prevented, the waterproof effect is excellent, and the waterproof / anti-corrosion durability is excellent. / There is a very excellent effect in terms of efficiency and economic feasibility.

On the other hand, the effects obtainable in the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below. You will be able to.

1 is a cross-sectional view schematically showing a composite waterproof structure according to an embodiment of the present invention;
Figure 2 is a cross-sectional view schematically showing the structure of the anti-corrosive sheet in the composite waterproof structure according to an embodiment of the present invention of FIG.
3 is a flowchart illustrating a method of manufacturing a composite waterproof structure according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the following examples. This embodiment is provided to more completely explain the present invention to those skilled in the art. Accordingly, the shapes of elements in the figures are exaggerated to emphasize clearer description.

The configuration of the present invention for clarifying the solution to the problem to be solved by the present invention will be described in detail with reference to the accompanying drawings based on a preferred embodiment of the present invention, but the same reference numerals are assigned to the components of the drawings. For components, even if they are on other drawings, the same reference numerals have been assigned, and it is made clear in advance that components of other drawings can be cited if necessary in the description of the drawings.

1 is a cross-sectional view schematically showing a composite waterproof structure according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view schematically showing the structure of an anticorrosive sheet in the composite waterproof structure according to an embodiment of the present invention in FIG.

1 and 2, the composite waterproof structure 100 according to an embodiment of the present invention includes a primer layer 10, an anticorrosive sheet 20, a sealing material 30, a fiber reinforcing material 40, and a non-talent urethane layer (50) may be included.

The primer layer 10 may be applied on the background surface after removing foreign substances from the surface and arranging the surface to be smooth.

In the present invention, the primer layer 10 may be composed of a urethane primer, is used to enhance adhesion with the base surface (concrete), has excellent fast permeability and adhesion to the base surface, and has a pot life of about 2 hours and is cured and dried Delay time can be minimized during sheet construction.

The anticorrosion sheet 20 may include a reinforcing layer 21, a fiber layer 22 attached to both sides of the reinforcing layer 21, and an adhesive layer 23 impregnated in the fiber layer below the reinforcing layer.

The reinforcing layer 21 may serve to improve the smoothness and strength of the anticorrosive sheet 20 and prevent thermal deformation, and may have a form of reinforcing cloth, for example. The reinforcing layer 21 may have a plain weave mesh shape that intersects (eg, orthogonal to) each other to have spaces (openings) between lattices therein.

For example, the reinforcing layer 21 may be composed of polyester-based (PET) straight wool. As a result, the construction cost of the reinforcing layer 21 can be reduced, and the pair of fiber layers 22 adhere to both sides of the reinforcing layer 21 through the space between the grids of the reinforcing layer 21 so that the fixation stability is further improved. can However, the present invention is not limited thereto.

Meanwhile, the reinforcing layer 21 may be made of recycled PET, and recycled PET may be used as a container for beverages such as water and juice and then recycled. Through this, PET is classified as an environmental pollutant because it does not decompose well in a natural state, and environmental pollution can be minimized by repeated recycling.

The fiber layer 22 may perform a function of firmly fixing the adhesive layer 23 to the reinforcing layer 21 .

For example, the fiber layer 22 may have a layered shape including a polyester-based material and a nonwoven fabric having a certain area. If the fiber layer 22 includes a polyester-based material, the surface penetration of the adhesive or adhesive material is easy, and the compatibility with the organic compound adhesive or adhesive material is excellent, so that the adhesive layer 23 is attached to the fiber layer 22. It can effectively perform the role of stably fixing.

However, the present invention is not limited thereto, and various modifications such as material, unit weight, and shape of the fiber layer 22 are possible. For example, the reinforcing layer 21 and the fiber layer 22 may be provided with a reinforcing fiber nonwoven fabric that has been laminated and bonded.

Meanwhile, the fiber layer 22 may be attached to both sides of the reinforcing layer 21 and disposed. Here, in order to improve the adhesion between the reinforcing layer 21 and the fiber layer 22, corona discharge treatment is performed on both sides of the reinforcing layer 21 to modify the surface of the base material (reinforcing layer 21), corona discharge on both sides of the reinforcing layer 21 When the treatment is performed, scratches and the like are formed to expand the bonding area, so the bonding strength can be remarkably improved.

On the other hand, when the adhesive layer 23 is formed by directly applying an adhesive or adhesive material to the reinforcing layer 21, peeling occurs at the interface between the reinforcing layer 21 and the adhesive layer 23 after the anticorrosive sheet 20 is adhered to the structure. easy to occur In order to prevent this, the aforementioned peeling phenomenon can be effectively prevented by applying a nonwoven fabric treated with needle punching, thermal compression, or an adhesive material.

The adhesive layer 23 positioned by being adhered to the fiber layer 22 serves as an adhesive layer or adhesive layer for attaching the anticorrosive sheet 20 to the primer layer 10.

In this embodiment, the adhesive layer 23 may be uniformly processed over the entire surface, or may be extended to have a zigzag shape with a constant area and circular cross section, or may be composed of a flat layer having a constant area.

In this embodiment, the adhesive layer 23 includes 50 to 60 parts by weight of asphalt, 10 to 15 parts by weight of styrene butadiene styrene, 5 to 10 parts by weight of butyl rubber, 3 to 5 parts by weight of process oil, and 1 to 3 parts by weight of an adhesive agent. , 1 to 3 parts by weight of an oil absorbent, 5 to 15 parts by weight of a filler, 3 to 5 parts by weight of aluminum stearate, 3 to 5 parts by weight of an antioxidant, and 3 to 5 parts by weight of other additives.

The adhesive agent is a vegetable adhesive such as sweet potato or corn to impart adhesion to the adhered surface, the oil absorbent is to prevent process oil from rising to the surface, and the filler (dolomite) is used to prevent the surface of the adhesive layer. It can perform the function of strengthening and reinforcing strength.

On the other hand, other additives may be added to increase adhesion and adhesion and prevent flow.

Here, the additive for enhancing high adhesion and adhesion may include an additive obtained by mixing a chlorosulfonate polyethylene group with an oil-based plasticizer, ESO (Epoxidized Soybean Oil).

On the other hand, as the anti-flow additive, one or two or more selected from meerschaum, polyester fiber, vegetable cellulose-based powder, needle-shaped inorganic powder, and plate-shaped inorganic filler mica may be used.

On the other hand, the anticorrosive sheet 20 is supplied in the form of a roll having a width of approximately 1 m, and a plurality of anticorrosive sheets 20 may be placed on one primer layer 10 adjacent to each other.

Here, the adjacent anticorrosion sheets 20a and 20b may form a connection part 1 in a region where ends are connected to each other. On the other hand, it is preferable that the ends of adjacent root-proof sheets 20a and 20b do not overlap each other, and the side surfaces of the ends are in contact with each other. That is, the upper surfaces of the adjacent anticorrosive sheets 20a and 20b may form the same surface.

A highly rigid sealing material 30 may be disposed at the connecting portion 1 of the adjacent anticorrosive sheets 20a and 20b so as to cover the upper portions of the ends of the anticorrosive sheets 20a and 20b.

The sealing material 30 may be made of an unsaturated polyester resin.

Here, the sealing material 30 is a liquid unsaturated polyester resin for fiber-reinforced plastic and may be composed of a tere-type two-component super-soft material, and is composed of a resin molded to suit the hand lay-up or spray process, and the connection part ( 1) can be cured after being applied.

On the other hand, the sealing material 30 may be less deformed due to shrinkage and have excellent mechanical properties.

The fiber reinforcing material 40 minimizes deformation of the joint after hardening of the soft type FRP resin, stably secures the tensile performance of the joint, and is applied on the cured sealing material 30 to protect the sealing material 30. Thus, the sealing efficiency of the connecting portion 1 can be improved.

The fiber reinforcing material 40 is composed of strand-type glass fibers impregnated into soft type FRP resin, and glass fibers are materials that reinforce the physical properties of resin in FRP, like the role of reinforcing bars in reinforced concrete, and have fast impregnation properties. , excellent workability and excellent dispersibility, it is possible to enhance the strength, corrosion resistance and positioning stability of the anticorrosive sheet 20 and the sealing material 30.

Meanwhile, the fiber reinforcing material 40 may cover the entire outer surface of the sealing material 30 so that the sealing material 30 is not exposed to the outside of the fiber reinforcing material 40 .

Nontal urethane layer 50 may be disposed on the front surface of the anticorrosive sheet 20 and the fiber reinforcing material 40.

The non-talent urethane layer 50 is composed of a mixture of the first solution and the second solution at a ratio of 1:3 or 1:4, and the first solution contains 65 to 87 parts by weight of a prepolymer, 5 to 12 parts by weight of a plasticizer, and others. 1 to 15 parts by weight of additives, and the second solution contains 50 to 60 parts by weight of calcium carbonate, 10 to 20 parts by weight of polyol (PPG), 1 to 10 parts by weight of a plasticizer, 0.1 to 2 parts by weight of an accelerator, and 0. 1 to 2 parts by weight and 1 to 15 parts by weight of other additives.

At this time, the plasticizer of the 1st and 2nd solutions secures smooth working performance and serves to secure the pot life and hardening time when mixing the 1st and 2nd solutions.

3 is a flowchart illustrating a method of manufacturing a composite waterproof structure according to an embodiment of the present invention.

Hereinafter, a method of manufacturing a composite waterproof structure according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3 .

Floor cleaning and primer layer formation step (S10)

First, remove moisture and dust from the floor to be waterproofed. Here, in the background treatment for irregularities, void steps, etc. of the construction surface, the uneven parts can be made smooth using a grinder or a face grinder, and in the case of voids, they can be finished flat with mortar.

In addition, the place where the crack occurred on the construction surface is reinforced with a crack repair material. The floor of the construction surface must be cleaned of foreign substances, and the leaked area must be treated with waterproof mortar. In addition, water retention and moisture in the background must be completely removed and sufficiently dried.

By performing waterproofing on a general concrete floor surface, a primer layer is formed on a part of the floor surface after cleaning the floor surface cleanly.

That is, the primer layer 10 may be formed only in the portion where the composite waterproof structure is installed.

As described above, the primer layer 10 may be composed of a urethane primer, used for filling the adhesive force with the base surface (concrete), has excellent fast permeability and adhesive strength to the base surface, and has a pot life of about 2 hours. It is dried to minimize the delay in sheet construction.

The primer may be formed using a brush, roller, spray, or the like. The amount of application should be uniformly applied to the base surface, and the order of application should be applied to the vertical area first, and then the primer flowing down to the floor should be applied evenly during floor application.

When applying to some uneven surfaces, the primer should not be pooled, so apply after smoothing the uneven areas so that they can dry smoothly.

Forming anticorrosive sheet (S20)

After checking the dry state of the primer layer 10, the anticorrosive sheet 20 is applied (about 2-3 hours).

When the primer is completely dry, the anticorrosion sheet 20 is constructed. Here, the anticorrosive sheet 20 may be arranged so that a plurality of anticorrosive sheets 20 come into contact with each other in the width direction.

Reinforce vulnerable parts such as joints, corners, and raised bottoms beforehand.

Reinforce the area around the drain, penetration pipe, and other vulnerable areas in advance using sealing materials and supplementary tape.

When constructing the anticorrosive sheet 20, the sheet is constructed from a low to a high gradient. This is to prevent water leakage when rainwater flows backwards by directing the end of the junction of the connection part 1 in the direction of the gradient.

When constructing the root-proof sheet 20 and the floor (primer layer), the root-proof sheet 20 and the root-proof sheet 20 connection part (1), primer is applied and constructed, and a manual roller or hand is used to remove the air layer from the inside to the outside of the joint press towards

When constructing the anticorrosive sheet 20, after attaching one end to the floor waterproofing layer in a state where the sheet is unfolded, the release paper attached to the lower part is removed while pulling at 45 degrees from the floor surface, and the sheet is tightly adhered to the floor surface, continuously constructed in the same way as

The anticorrosion sheet 20 should be confirmed that it is sufficiently adhered so that there is no lifting part after the attachment is completed, and the weak part is reinforced with a reinforcing material.

The anti-corrosive sheet 20 and the end of the anti-corrosive sheet 20 are mutually mated.

Formation of sealing material and fiber reinforcing material (S30)

When the construction of the anticorrosive sheet 20 is completed, the sealing material 30 and the fiber reinforcing material 40 should be applied to the connection part 1 of the anticorrosive weak part of the anticorrosive sheet 20 as soon as possible.

Before applying the sealing material 30 and the fiber reinforcing material 40, it should be confirmed whether impurities such as dust and foreign matter are sufficiently removed from the root-proof sheet 20 and the connection part 1.

When the sealing material 30 and the fiber reinforcing material 40 are applied, after checking the attached state of the anticorrosive sheet 20, the sealing material 30 is applied to the connection part 1 of the adjacent anticorrosive sheet 20, and then the sealing material 30 On top, a glass fiber mat is applied so that it is evenly impregnated with FRP resin.

After applying the matrix resin to the joint area of the sheet using a brush or hair roller, FRP reinforcing material, glass fiber is attached, and an FRP coating layer is formed using a hair roller, brush, iron roller, etc.

Formation of non-removal urethane layer (S40)

In order to improve watertightness and waterproofness, a nontal urethane coating material is applied to the entire surface of the anticorrosive sheet 20 where the sealing of the connection part 1 is completed. The material usage of the coating material is 1. 0 kg as the standard.

In addition, a separate protective layer may be separately formed on the non-removable urethane layer 50 using a protective mortar or a protective material.

The above detailed description is illustrative of the present invention. In addition, the foregoing is intended to illustrate and describe preferred embodiments of the present invention, and the present invention can be used in various other combinations, modifications, and environments. That is, changes or modifications are possible within the scope of the concept disclosed in this specification, within the scope equivalent to the written disclosure and / or within the scope of skill or knowledge in the art. The written embodiment describes the best state for implementing the technical idea of the present invention, and various changes required in the specific application field and use of the present invention are also possible. Therefore, the above detailed description of the invention is not intended to limit the invention to the disclosed embodiments. Also, the appended claims should be construed to cover other embodiments as well.

Claims (7)

primer layer;
An anticorrosive sheet comprising an adhesive layer adhered on the primer layer and
A sealing material disposed on the connecting portion of the neighboring anticorrosive sheet to connect the adjacent anticorrosive sheet;
a fiber reinforcing material covering the sealing material; and
Including; a non-total urethane layer disposed on the anticorrosive sheet and the fiber reinforcing material,
The nontal urethane layer is
The first solution and the second solution are mixed in a ratio of 1:3 or 1:4,
The first solution includes 65 to 87 parts by weight of a prepolymer, 5 to 12 parts by weight of a plasticizer and 1 to 15 parts by weight of other additives,
The second solution contains 50 to 60 parts by weight of calcium carbonate, 10 to 20 parts by weight of polyol (PPG), 1 to 10 parts by weight of a plasticizer, 0.1 to 2 parts by weight of an accelerator, 0.1 to 2 parts by weight of a pigment and other additives A composite waterproof structure comprising 1 to 15 parts by weight.
delete According to claim 1,
The anticorrosion sheet
reinforcing layer,
A fiber layer attached to both sides of the reinforcing layer, and
A composite waterproof structure comprising an adhesive layer impregnated with a fiber layer under the reinforcing layer.
According to claim 3,
The adhesive layer includes 50 to 60 parts by weight of asphalt, 10 to 15 parts by weight of styrene butadiene styrene, 5 to 10 parts by weight of butyl rubber, 3 to 5 parts by weight of process oil, 1 to 3 parts by weight of an adhesive agent, and 1 to 3 oil absorbents. A composite waterproof structure comprising 5 to 15 parts by weight of a filler, 3 to 5 parts by weight of aluminum stearate, 3 to 5 parts by weight of an anti-aging agent, and 3 to 5 parts by weight of other additives.
According to claim 1,
The sealing material is a composite waterproof structure composed of an unsaturated polyester resin.
According to claim 1,
The fiber reinforcement is a composite waterproof structure composed of a structure in which soft type FRP resin glass fibers are impregnated and integrated into FRP resin before curing.
delete

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