KR20220100375A - Waterproof member for injecting concrete - Google Patents

Abstract

The present invention relates to a waterproof member for concrete pouring. As the waterproofing member installed on a roof of a concrete structure or other structures, the waterproof member for the concrete pouring of the present invention comprises the waterproof member comprising at least one of polyethylene, polypropylene, and copolymers thereof. At least one surface of the waterproof member is formed with a plurality of pouring grooves introduced by the concrete pouring.

Description

Waterproofing member for concrete pouring {WATERPROOF MEMBER FOR INJECTING CONCRETE}

The present invention relates to a waterproofing member for pouring concrete, and more particularly, to a waterproofing member for pouring concrete that is physically bonded to concrete.

In recent years, numerous buildings such as houses, apartments, and factories have increased due to industrial development and population growth. Reinforced concrete is a typical example in the structure of buildings. In general, concrete has a property of shrinking as it hardens and dries, and cracks occur in the process of shrinkage, and moisture easily permeates into the cracks, causing defects such as corrosion or enlargement of cracks.

Waterproof construction for preventing such defects can be largely divided into a coating type, a sheet type, a composite type, and the like. The coating type is to use various coating film waterproofing materials, and the sheet type is to use a waterproof sheet. The compound type is to apply the coating type and the sheet type in combination.

Coating-type waterproofing is relatively easy to install in narrow or complex areas. In addition, seamless construction is possible and maintenance is relatively easy. However, the coating-type waterproofing construction has a disadvantage in that it is difficult to maintain a uniform thickness of the coating film depending on the condition of the floor surface or the work site. Sheet-type waterproofing construction has great advantages in that it is easy to install and can reduce labor costs, but has disadvantages in that it is difficult to construct complex areas and difficult to repair parts. In addition, the sheet-type waterproofing construction has a problem in that the watertightness at the joint between the sheets decreases.

Recently, in order to solve the above problems, there is a great demand for a composite waterproofing construction in which a waterproofing material is applied to a crack and a waterproofing sheet is attached.

However, since the conventional waterproof sheet has a structure in which the waterproof sheet is simply adhered to the surface of the concrete structure in a hardened state, there is a problem in that the physical properties of the waterproof sheet are deteriorated due to environmental factors such as temperature or moisture over a long period of time. In addition, there is a problem in that the durability and waterproof performance are greatly reduced due to the occurrence of floating and swelling in the coating layer due to the moisture content of the concrete structure.

In addition, the waterproof sheet itself has no elasticity, and there is a possibility that the waterproof sheet itself may be displaced from the surface to be applied or damaged due to long-term use.

Korean Patent Publication No. 10-2018-0057756

An object of the present invention is to solve the problems of the prior art as described above and the technical problems that have been requested from the past.

After repeated in-depth research and various experiments, the inventors of the present application provide a waterproofing member of a concrete structure that is semi-permanently poured into a concrete structure and has improved heat resistance and waterproofness due to the external environment, as will be described later.

The problems of the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

The waterproof member according to the present invention for achieving this object,

As a waterproofing member installed on the roof of a concrete structure or other structures,

A waterproof member comprising at least one of polyethylene, polypropylene, and copolymers thereof,

At least one surface of the waterproof member may have a structure in which a plurality of pouring grooves introduced by concrete pouring are formed.

In one preferred embodiment of the present invention, the waterproof member may include the same component as the concrete.

In one preferred example of the present invention, the pouring groove of the waterproof member may have a structure connected to the adjacent pouring groove.

In one preferred example of the present invention, the cross section may include a plurality of pouring projections formed in a 'T' shape to form the pouring groove of the waterproof member.

In one preferred example of the present invention, the pouring projection may be formed in a '+' shape on a plane.

In one preferred embodiment of the present invention, the pouring projection, a vertical extension extending upward from the bottom; and a plurality of horizontal extension portions extending in a horizontal direction while crossing the extension portion vertically.

In one preferred embodiment of the present invention, the waterproof member may be manufactured in a roll to roll method.

In one preferred embodiment of the present invention, the waterproof member may be formed by injection molding, and the edge end of the waterproof member may be inclined at a predetermined angle.

In one preferred embodiment of the present invention, the waterproof member may include a carbon material, and the carbon material may be formed in a randomly entangled carbon fiber shape.

As described above, the waterproofing member according to the present invention is semi-permanently poured into a concrete structure and has an effect of improving heat resistance and waterproofness due to an external environment.

Effects of 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 of the claims.

1 is a view showing a part of a waterproofing member according to an embodiment of the present invention,
Figure 2 is a view showing the casting projection of the waterproof member according to an embodiment of the present invention,
3 is a use state diagram showing a state in which a waterproofing member is applied to concrete according to an embodiment of the present invention;
4 is a view showing a coupling state of the waterproof member 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. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. However, the embodiments introduced herein are provided so that the disclosed content may be thorough and complete, and the spirit of the present invention may be sufficiently conveyed to those skilled in the art. In the drawings, in order to clearly express the components of each device, the sizes such as width and thickness of the components are slightly enlarged. In the description of the drawings as a whole, it has been described from an observer's point of view, and when an element is referred to as being positioned on another element, this means that the element may be positioned directly on the other element or an additional element may be interposed between the elements. include In addition, those of ordinary skill in the art will be able to implement the spirit of the present invention in various other forms without departing from the technical spirit of the present invention. And, in the plurality of drawings, the same reference numerals refer to elements that are substantially the same as each other.

On the other hand, the meaning of the terms described in the present invention should be understood as follows. Terms such as 'first' or 'second' are for distinguishing one component from other components, and the scope of rights should not be limited by these terms. For example, a first component may be termed a second component, and similarly, a second component may also be termed a first component.

In addition, the singular expression should be understood to include the plural expression unless the context clearly indicates otherwise, and terms such as 'comprise' or 'have' are used to refer to the described feature, number, step, operation, component, or part. or a combination thereof, but it is to be understood that it does not preclude in advance the possibility of the existence or addition of one or more other features or numbers, steps, operations, components, parts, or combinations thereof. In addition, in performing the method or the manufacturing method, each process constituting the method may occur differently from the specified order unless a specific order is clearly described in context. That is, each process may occur in the same order as specified, may be performed substantially simultaneously, or may be performed in the reverse order.

Hereinafter, in order to enable those of ordinary skill in the art to easily practice the present invention, preferred embodiments of the present invention will be described in detail.

1 is a view showing a part of a waterproofing member according to an embodiment of the present invention, FIG. 2 is a view showing a pouring projection of a waterproofing member according to an embodiment of the present invention, and FIG. 3 is an embodiment of the present invention It is a state diagram showing a state in which the waterproofing member is applied to the concrete according to , and FIG. 4 is a view showing the coupling of the waterproofing member according to an embodiment of the present invention.

Referring to these drawings, the waterproof member 100 according to the present invention is provided for waterproofing a building such as a roof, and may be formed by pouring concrete. The waterproof member 100 may include a plurality of pouring projections 200 protruding upward.

The waterproof member 100 may be made of polyethylene and polypropylene resins or copolymers thereof, and pouring projections 200 for forming pouring grooves in which the concrete can be introduced and hardened may be formed at predetermined intervals. .

Specifically, the waterproof member 100 may be formed in a plate-like sheet shape, and may be manufactured in a roll-to-roll method. In addition, the waterproof member 100 may be manufactured by including at least some of the same components as the concrete. In some cases, the waterproof member 100 may be manufactured including a carbon material, and may include a randomly entangled carbon fiber shape.

The pouring projection 200 may be formed in a 'T' shape in cross section. The waterproof member 100 may include a vertical extension portion 210 vertically extending upwardly from the bottom surface and a horizontal extension portion 220 vertically intersecting from the vertical extension portion 210 to extend in a horizontal direction. At this time, four horizontal extension parts 220 may be formed in a '+' shape in a plane so that a pair faces each other. In some cases, the horizontal extension part 220 is, as shown in FIG. 2 , one side A burr that protrudes in the direction may be formed.This burr shape can greatly improve the bonding force without mutual play when the concrete 10 is poured into the waterproof member 100 .

In addition, according to the present invention, since the width W _{1 of the vertical extension 210 of the waterproof member 100 is relatively thin compared to the width W 1 of} the horizontal extension 220, the waterproof member ( When the concrete 10 is poured into 100) while minimizing the pouring space by the pouring protrusion 200, the mutual coupling force is improved, and at the same time, the coupling force in the vertical direction by the four relatively thick horizontal extension parts 220 can be increased.

On the other hand, the waterproof member 100 may be formed with an inclined surface 101 at a predetermined angle at one end so that it can be continuously connected to the installation space. Accordingly, as shown in FIG. 3( b ), the joint portion can be constructed without a gap while the inclined surfaces 101 of the pair of waterproof members 100 adjacent to each other are in close contact with each other.

In addition, as shown in FIG. 3 (a), one end of the waterproof member 100 has an inclined surface 101 at a predetermined angle to facilitate installation in the bent portion of the space where the waterproof member 100 is installed. can be formed. Accordingly, the inclined surfaces 101 between the adjacent waterproofing members 100 may be constructed in close contact with each other.

In some cases, the waterproof member 100 according to the present invention may be manufactured including a carbon material. That is, in one example, an adhesive reinforcement (not shown) in the form of a carbon fiber sheet in which the carbon material is randomly entangled may be formed on the surface of the waterproof member 100 . Such an adhesive reinforcing material may be integrally formed on one or both surfaces of the waterproof member 100 by a hot press method.

Alternatively, the adhesive reinforcing material may be coated on one or both surfaces of the waterproof member 100 , or may be manufactured integrally by copolymerizing or blending with a polymer resin when manufacturing the waterproof member 100 .

Therefore, by manufacturing the waterproof member 100 including the carbon material having the above-described predetermined surface roughness and excellent physical properties such as heat resistance in a tangled structure, mechanical properties can be greatly improved. According to the present invention, preferably, the carbon material is preferably included in an amount of about 1 to 5 parts by weight with respect to the entire waterproofing member 100 .

Hereinafter, preferred embodiments of the present invention are presented. However, these are presented as preferred examples of the present invention and cannot be construed as limiting the present invention in any sense. Content not described here will be omitted because it can be technically inferred sufficiently by those skilled in the art.

[Example]

A waterproof molded article was prepared by injection molding a polymer resin including polyethylene and polypropylene and carbon fiber.

Example 1: Preparation of waterproof molded articles

Injection molding of a composition comprising 61.35% by weight of polyethylene and polypropylene resin, 16.56% by weight of polymethyl methacrylate (PMMA) resin, 1% by weight of carbon fiber, 19.02% by weight of plasticizer, 1.23% by weight of stabilizer and 1.84% by weight of other additives It was prepared in this way, cooled and cut to the required size to prepare a waterproof molded article sample.

Example 2: Preparation of waterproof molded articles

A waterproof molded article was prepared in the same manner as in Example 1, except that 3 wt% of carbon fiber was included in the preparation of the waterproof molded article.

Example 3: Preparation of waterproof molded articles

A waterproof molded article was prepared in the same manner as in Example 1, except that 5 wt% of carbon fiber was included in the preparation of the waterproof molded article.

[Comparative example]

<Comparative Example 1>

A waterproof molded article was manufactured in the same manner as in Example 1, except that carbon fiber was not included in the preparation of the waterproof molded article.

<Comparative Example 1>

A waterproof molded article was prepared in the same manner as in Example 1, except that 0.1 wt% of carbon fiber was included in the preparation of the waterproof molded article.

[Experimental example]

The physical properties were evaluated using the section of the waterproof molded article prepared above, and the results are shown in the table below.

As shown in the table, in the case of the waterproof composite sheet comprising carbon fiber according to an embodiment of the present invention, thermal deformation hardly occurs under various construction conditions than Comparative Examples 1 and 2, which do not include or contain less. It can be seen that the measurement items show excellent characteristics.

Above, although embodiments of the present invention have been described with reference to the accompanying drawings, those of ordinary skill in the art to which the present invention pertains can implement the present invention in other specific forms without changing its technical spirit or essential features. You will understand that there is Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

Therefore, the spirit of the present invention should not be limited to the above-described embodiments, and not only the claims described below, but also all modifications equivalently or equivalently to the claims described below belong to the scope of the spirit of the present invention. will be.

10: concrete
100: plate-shaped waterproofing member
101: slope
200: cast projection
210: vertical extension
220: horizontal extension
230: burr (burr)

Claims (9)

As a waterproofing member installed on the roof of a concrete structure or other structures,
A waterproof member comprising at least one of polyethylene, polypropylene, and copolymers thereof,
A waterproofing member in which a plurality of pouring grooves introduced by concrete pouring are formed on at least one surface of the waterproofing member.
The method of claim 1,
The waterproof member is a waterproof member comprising the same component as the concrete.
The method of claim 1,
The pouring groove of the waterproofing member is a waterproofing member connected to the adjacent pouring groove.
The method of claim 1,
A waterproofing member including a plurality of pouring projections having a cross section formed in a 'T' shape to form a pouring groove of the waterproofing member. 5. The method of claim 4,
The pouring projection is a waterproof member formed in a '+' shape on a plane.
The method of claim 1,
The pouring projection is,
a vertical extension extending upward from the bottom; and
A waterproof member comprising a; a plurality of horizontal extensions extending in the horizontal direction to cross vertically from the extension.
The method of claim 1,
The waterproof member is a waterproof member manufactured in a roll to roll (roll to roll) method.
The method of claim 1,
The waterproof member is formed by injection molding, and the edge end of the waterproof member is inclined at a predetermined angle.
The method of claim 1,
The waterproof member includes a carbon material, and the carbon material is a waterproof member formed in a randomly entangled carbon fiber shape.

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