KR20210020257A - complex sheet for waterproof work - Google Patents

Abstract

The present invention relates to a composite sheet for waterproof construction, which can easily connect a joint of the composite sheet without using a separate joint member, thereby being simply and quickly constructed on a construction surface of a building. To this end, a rectangular composite sheet for waterproof construction comprises: an insertion protrusion part formed along a border of one end of the composite sheet; and an insertion groove part formed along a border of the other end of the composite sheet and corresponding to the insertion protrusion part.

Description

Composite sheet for waterproof work}

The present invention relates to a composite sheet for waterproof construction, and more particularly, when a plurality of composite sheets are continuously connected during waterproof construction of a building roof or basement, the joint can be firmly connected, and waterproof construction can be performed simply. It relates to a composite sheet that can significantly reduce the time and cost required for waterproof construction.

In general, when moisture such as rainwater permeates from the roof or basement of a building, some of the moisture does not evaporate and penetrates into the building and adversely affects the durability of the structure.Therefore, various waterproofing materials are used to protect structures such as inner walls and floors. Perform waterproofing work.

As a waterproofing material for such conventional buildings, materials such as asphalt or coal tar pitch were mainly used.A waterproof layer was formed by directly applying or spraying asphalt or coal tar pitch on the building surface, or paper, felt, cloth impregnated with asphalt or coal tar. The construction surface is covered with a lamp, and protection works are also performed on it with mortar or concrete. Of course, this method of applying or spraying asphalt or coal tar pitch directly on the surface of a building has advantages in that it is easy to construct and is inexpensive, but when a crack occurs in the structure, the waterproofing layer is destroyed and the waterproofing effect cannot be achieved. In the case of covering the construction surface with paper impregnated with and performing the protection work on it, there is a problem that it is difficult to find and repair defective parts if water leaks.

In this regard, there has been recently proposed Patent No. 10-1353267. This relates to a partial partition type honeycomb PVC sheet, a partial partition type composite waterproof structure and construction method using the same. The composite waterproof structure includes an adhesive and watertight wall layer formed in the longitudinal direction by permeating the polyurethane applied on the upper concrete slab layer to the partial insulating portion formed between the lower side ends of the partially partitioned honeycomb PVC sheet; A joint part formed in the longitudinal direction by permeating the polyurethane applied on the upper part of the slab layer to the partial insulating part formed on both side ends of the partial partitioned honeycomb PVC sheet and the butt joint with the neighboring partial partitioned honeycomb PVC sheet; The polyurethane penetrates and bonds and forms a watertight wall layer and a joint part, which is partitioned with the lower slab layer to provide a multiple watertight structure, a partial insulating part formed between both sides and both ends of the lower part, and a part in which a protruding honeycomb core part is formed A partitioned honeycomb PVC sheet; A PET film layer attached to the upper portion of the partially partitioned honeycomb PVC sheet to protect the partially partitioned honeycomb PVC sheet from melting by a solvent of polyurethane; An insulating member which is located in the longitudinal direction over a partial area between the upper surface of the joint unit and the partially partitioned honeycomb PVC sheets adjacent to each other, and the surface is coated with silicone to separate the polyurethane applied to the upper and lower portions; It consists of; a polyurethane waterproof layer applied on the entire surface between the insulating member and the partially partitioned honeycomb PVC sheet.

However, such a conventional composite waterproof structure is complicated as a joint part and an insulating member must be additionally provided to separate the joint part of the honeycomb PVC sheet during waterproof construction.

In addition, this structure has a problem in that the joint part of the honeycomb PVC sheet as well as the position adjustment work when installing the joint part and the insulating member is also difficult, and the overall construction time is still required.

On the other hand, the problem of the existing dry sheet construction method is that even if an air vent is installed because the slope is watertight, only moisture is discharged on the pocket-type composite sheet surface, and residual moisture and water vapor permeated to the other sheet surface cannot be discharged smoothly, resulting in blistering in summer and winter. Freezing reveals a serious problem that adds to the neutralization of concrete.

Reference: Registered Patent No. 10-1353267

Therefore, as to solve the problems of the prior art, the present invention provides a composite sheet for waterproof construction with excellent workability due to simple joint connection between composite sheets during waterproof construction using a composite sheet on the roof or basement of a building. There is a purpose.

In addition, an object of the present invention is to provide a composite sheet for waterproof construction that is excellent in workability and convenient position adjustment when connecting joints because a separate joint member is not used when connecting joints between composite sheets.

In addition, there is another object for slowing concrete neutralization and effectively lowering the moisture content of the floor by activating ventilation by making a passage between the sheet and the sheet in a slim air line to solve the ventilation problem, which is a problem of the conventional dry composite sheet method.

In order to solve such a technical problem, the present invention;

In the composite sheet for waterproof construction,

The composite sheet provides a composite sheet for waterproof construction, characterized in that a fitting protrusion is formed along an edge of the composite sheet, and a fitting groove corresponding to the fitting protrusion is formed along the edge of the other end of the composite sheet. .

In this case, the composite sheet includes a lower substrate layer, a waterproof layer provided on an upper surface of the lower substrate layer, and an upper substrate layer provided on the upper surface of the waterproof layer; The fitting protrusion of the composite sheet is formed by extending one end of the waterproof layer between the lower and upper substrate layers, and the fitting groove of the composite sheet extends the other ends of the lower and upper substrate layers formed on the lower and upper portions of the waterproof layer. It is characterized in that it is formed to protrude.

In addition, the lower substrate layer is made of a polyester material, but is formed to a thickness of 0.8 to 1.3 mm, and the waterproof layer is formed in the form of a film and is melted when heat is applied, and is made of a hot melt-based material having adhesive performance. It is formed to a thickness of 0.2 ~ 0.5mm, the upper substrate layer is made of a polyester (polyester) material, characterized in that formed to a thickness of 0.1 ~ 0.5mm.

In addition, a release paper is further attached to a lower surface of the other end of the upper base layer to prevent the other ends of the upper base layer forming the fitting groove from sticking to each other or adhering to dust.

The composite sheet according to the present invention is formed in a square shape to correspond to the fitting protrusions and fitting grooves at both ends. When the composite sheet is continuously constructed, the fitting protrusions of the adjacent composite sheet are assembled by inserting the fitting protrusions of the composite sheet first The joint connection between sheets is simple.

In particular, the composite sheet according to the present invention can perform a simple and accurate connection of the joint without using a separate joint member, so that the waterproof construction can be quickly performed.

In addition, there is another purpose to effectively lower the moisture content of the floor while slowing the neutralization of concrete by activating ventilation by making a passage between the sheet and the sheet in a slim air line to solve the ventilation problem, which is a problem of the conventional dry composite sheet method.

1 is a cross-sectional view showing a composite sheet for waterproof construction according to an embodiment of the present invention.
2 is a cross-sectional view illustrating a release paper removal state of the composite sheet for waterproof construction according to an embodiment of the present invention.
3 is a connection cross-sectional view of a composite sheet for waterproof construction according to an embodiment of the present invention.
4 is a cross-sectional view illustrating a vent member installation state of a composite sheet for waterproof construction according to an embodiment of the present invention.
5 is a cross-sectional view illustrating an installation state of a vent member of a composite sheet for waterproof construction according to another embodiment of the present invention.

Hereinafter, the characteristics of the composite sheet for waterproof construction according to the present invention may be understood by the embodiments described in detail with reference to the accompanying drawings.

1 to 4 are views illustrating a composite sheet for waterproof construction according to an embodiment of the present invention.

According to this, the composite sheet for waterproof construction 100 according to the present invention includes the lower substrate layer 110, the waterproof layer 120 provided on the upper surface of the lower substrate layer 110, and the upper surface of the waterproof layer 120. It consists of an upper substrate layer 130 provided.

Hereinafter, the configuration of the present invention will be described in detail.

The lower base layer 110 is a part attached to the construction surface 10 of a building 1 that needs waterproofing, such as a roof or a basement of a building.

The lower substrate layer 110 is made of a polyester material, and a thickness of 0.8 ~ in consideration of adhesion to the primer layer 20 by applying a primer that performs an adhesive function applied to the construction surface 10 1.3 mm is used, preferably 1.1 mm thick.

The polyester has the strength of the fiber when it is pulled next to nylon, and the strength when wetted with water does not change. In particular, the degree of wrinkle recovery is the same as that of wool and recovery when wet with water It has a higher degree, weak hygroscopicity, has little elasticity, and has a very high degree of drying, making it suitable as a material for shirts. It has a property similar to wool as a staple fiber, so it is blended with wool or other yarns, making it suitable for use in menswear suit materials. It is also contributing greatly to pioneering the field.

These polyester films are usually biaxially stretched to increase strength, and are used as a base material for composite films, vacuum evaporation films, gold and silver yarns, etc., and are liquids of low viscosity dissolved in vinyl units (such as styrene, methyl methacrylate). A peroxide is added to obtain a thermosetting resin. There are applications such as reinforced plastics, paints, and mold resins.

And, in the case of polyester fabric, it is useful to prevent tearing or deformation of the waterproof layer 120 because it has strong characteristics against tearing and puncture.

At this time, the lower substrate layer 110 is made of a polyester material, but may be made in the form of a film, but a honeycomb structure or a nonwoven structure is used to increase adhesion with the primer layer 20 This is desirable.

On the other hand, the waterproof layer 120 is to prevent water from permeating to the bottom, may be made of a variety of materials, it is preferable to use a film made of. At this time, the waterproof layer 120 may be made of various materials such as a thermoplastic resin or hot-melt-based material that melts when heat is applied to it and has adhesive performance. For example, ethylene vinyl acetate (EVA) is a new chemical material that combines ethylene and vinyl acetate. It is transparent and has excellent adhesion and flexibility, so it can be used for various purposes such as shoe soles, coatings, adhesives, and sheets for solar cells.

As the waterproof layer 120, for example, a film having a thickness of 0.2 to 0.5 mm is used, and preferably, a film having a thickness of 0.3 mm is used.

In addition, the upper substrate layer 130 is made of the same material as the lower substrate layer 110, for example, made of a polyester material, and a thickness of 0.1 to 0.5 mm is used, and preferably 0.3 Use mm thick. Of course, the upper substrate layer 130 is preferably a honeycomb structure or a nonwoven fabric structure in order to increase adhesion with the polyurea forming the top coat layer 30 on the upper side.

On the other hand, the composite sheet 100 can be connected without using a separate joint member when attached to the construction surface 10 requiring waterproofing, such as a roof or basement of a building. To this end, the composite sheet 100 has a square shape, and a fitting protrusion 102 is formed along one edge of the composite sheet 100, and the fitting protrusion along the other end edge of the composite sheet 100 ( A fitting groove 104 corresponding to 102 is formed.

More specifically, the fitting protrusion 102 of the composite sheet 100 is formed by extending and protruding one end of the waterproof layer 120 between the lower and upper substrate layers 110 and 130. The fitting groove 104 is formed by extending and protruding the other ends of the lower and upper substrate layers 110 and 130 formed on the lower and upper portions of the waterproof layer 120.

At this time, the fitting protrusion 102 formed at one end of the composite sheet 100 has a shape corresponding to the fitting groove 104 formed at the other end, and the protruding length of the fitting protrusion 102 is 40 to 60 mm Preferably, 50mm is formed within the range, and the depth of the fitting groove 102 is preferably 50mm within the range of 40-60mm.

At this time, the other ends of the lower and upper substrate layers 110 and 130 forming the fitting groove 104 are provided with a release paper 132 on the lower surface of the other end of the upper substrate layer 130 to prevent sticking to each other or attaching dust. Attach more.

According to this structure, after inserting the fitting protrusion 102' of the other composite sheet 100' adjacent to the fitting groove 104 of the one side composite sheet 100, lifting the other end of the upper substrate layer 130 After separating 132, the other end of the upper substrate layer 130 is in close contact with the upper surface of the fitting protrusion 102' of the adjacent composite sheet 100', and then heated with a heating plate (for example, an iron) to It induces thermal fusion of the fitting protrusion 102 ′ of the sheet 100 ′ and the lower and upper substrate layers 110 and 130.

On the other hand, the edge of the composite sheet 100, specifically, a vent member 200 functioning as a vent hole to smooth the air flow under the adjacent composite sheet 100 ′, at a lower part of the joint, maintain a certain distance. And placed.

" 형상으로 이루어진 것을 사용하며, 탄성을 갖는 쫄대를 사용함도 가능하다. 이러한 벤트부재(200)는 양측의 접힘부가 탄성을 가지는 특성을 갖고 있다. 이러한 벤트부재(200)의 벤트홀(venthole) 내부에는 부직포와 같이 공기흐름이 원활하며 탄성이 있는 다양한 재질로 이루어지는 형상유지체(210)를 구비하여 벤트홀(venthole)의 형상을 일정하게 유지해줌이 바람직하다. 물론 상기 벤트부재(200)는 도 5에 도시된 바와 같이 벨크로 테이프 특히 수 벨트로테이프를 사용할 수도 있다.This vent member 200 is made of a synthetic resin film material as shown in Figs. 1 to 3, and the cross section is "

It is possible to use a shape made of, and it is also possible to use a belt having elasticity. This vent member 200 has a characteristic that the folded portions of both sides have elasticity. The inside of the venthole of the vent member 200 is possible. It is preferable to provide a shape-retaining member 210 made of various materials having elasticity and smooth air flow, such as a nonwoven fabric, to maintain a constant shape of a venthole. As shown in Fig. 5, it is also possible to use a Velcro tape, especially a male belting tape.

At this time, prior to the construction of the composite sheet 100 of the present invention, the vent member 200 is applied to the construction surface 10 such as the roof of the building 1 or the basement where waterproofing is required, using an adhesive 12 to maintain a certain distance. Attach first.

On the other hand, after attaching the composite sheet 100 to the construction surface 10, a top coat layer 30 may be selectively formed by applying a polyurea resin.

At this time, the polyurea is an elastomer formed by a chemical reaction of an amine-terminated resin mixture with an isocyanate compound having a primary amine at the terminal, and is classified as a hybrid type when the resin mixture contains polyols and catalysts. This polyurea is a catalyst-free ultra-fast curing type. Since it has a gel time within 3 to 5 seconds after spraying, it can be sprayed without flowing down even on inclined and vertical surfaces, and the drying time to the touch is within 30 seconds. During construction, it is hardly affected by water and temperature, and is less affected by climate change, moisture, heat, cold, etc. (Construction possible temperature: -40℃ to +135℃). In addition, polyurea can be sprayed in a volume ratio of 1:1 without the use of solvents or diluents as it is a two-component 100% solid content. Polyurea has excellent physical properties including tensile strength, elongation, abrasion resistance, and adhesion, and shows high thermal stability even at temperatures up to 177°C (mainly aromatic polyurea resins). It can be constructed by spray method, pour method, and RIM (Reaction Injection Mold) method.

In this case, the polyurea resin may be mixed with a curing agent in various ratios, for example, by mixing at 7: 1 and spraying with a spray to form the top coat layer 30 with a thickness of 0.3 to 0.7 mm. In this case, the top coat layer 30 is preferably formed to a thickness of 0.5mm.

Hereinafter, an example of waterproof construction using the composite sheet according to the present invention will be described with reference to FIGS. 1 to 5.

First of all, pollutants such as LAITANCE, dust, oil, etc. of the construction surface 10 requiring waterproofing, such as the roof or basement of the building 1, are completely removed. The ground treatment of the construction surface may remove contaminants by surface treatment through blasting, chipping, diamond wheel grinding, or the like.

" 형상으로 이루어진 것을 부착하거나 수 벨크로 테이프를 부착한다. 이 경우 벤트부재(200)를 사용하는 경우 벤트홀(venthole) 내부에는 부직포와 같이 공기흐름이 원활하며 탄성이 있는 다양한 재질로 이루어지는 형상유지체(210)를 더 삽입함이 바람직하다.The vent member 200 is attached to the surface-treated construction surface 10 while maintaining a predetermined interval using an adhesive 12. In this case, since the edges of the plurality of composite sheets 100 attached through the post-process become the joints, the vent member 200 is "

In this case, when the vent member 200 is used, a shape-holding member made of various materials with elasticity and smooth airflow, such as a nonwoven fabric, inside the venthole It is preferable to further insert (210).

Then, the primer layer 20 is formed by applying a primer that performs an adhesive function for attaching the composite sheet 100 to the surface-treated construction surface 10. This is to firmly attach the composite sheet 100 to the concrete construction surface 10, and it is preferable to use an asphalt primer.

After the primer layer 20 is formed, the composite sheet 100 is attached to the surface of the primer layer 20 applied to the construction surface 10. At this time, the rim of the square-shaped composite sheet 100 is attached so that it crosses at a right angle with the vent member 200. On the other hand, in order to continuously attach the composite sheet 100 adjacently, the other end of the upper substrate layer 130 of the first attached composite sheet 100 is lifted to expose the fitting groove 104, and the adjacent composite sheet ( 100') of the fitting protrusion 102' is first inserted into the fitting groove 104 of the attached composite sheet 100, and then the release paper 132 of the other end of the lifted upper substrate layer 130 is removed. In close contact with the fitting protrusion 102' of the other composite sheet 100'.

Thereafter, the joint portion is heated with a heating plate (for example, an iron) to melt the fitting protrusion 102 ′ of the adjacent composite sheet 100 ′ and heat-sealed between the lower and upper substrate layers 110 and 130. Through this process, as a whole, the composite sheet 100 is attached to the construction surface 10.

In this way, after the composite sheet 100 is continuously attached, a top coat layer 30 is formed by applying a polyurea resin on the surface of the composite sheet 100. When forming the top coat layer 30, the urethane waterproofing agent or the polyurea resin and the curing agent may be mixed in various ratios. For example, it is preferable to mix in a ratio of 7:1 and spray with a spray to form a thickness of 0.5 mm. In this case, the top layer 30 may be selectively formed according to the construction surface 10, and a top layer may be formed on the exposed surface of the building exposed to water, and the top layer may not be formed on the non-exposed surface. . After performing such a process, the waterproof construction is completed by naturally curing the top coat layer 30.

The above description is merely illustrative of the technical idea of the present invention, and those of ordinary skill in the technical field to which the present invention pertains are capable of various modifications and variations without departing from the essential characteristics of the present invention. The scope of protection should be interpreted by the claims below, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

1: Building 10: Construction surface
100: composite sheet 102: fitting protrusion
104: fitting groove 110: lower substrate layer
120: waterproof layer 130: upper substrate layer
132: Hyungji Lee

Claims (4)

In the composite sheet for waterproof construction (100),
The composite sheet 100 is formed in a square shape, one end of which the fitting protrusion 102 is formed along the rim, and the fitting groove 104 corresponding to the fitting protrusion 102 along the other end of the composite sheet 100 A composite sheet for waterproof construction, characterized in that it is formed.
The method of claim 1,
The composite sheet 100 includes a lower substrate layer 110, a waterproof layer 120 provided on the upper surface of the lower substrate layer 110, and an upper substrate layer 130 provided on the upper surface of the waterproof layer 120. Done;
The fitting protrusion 102 of the composite sheet 100 is formed by extending one end of the waterproof layer 120 between the lower and upper substrate layers 110 and 130, and the fitting groove 104 of the composite sheet 100 is A composite sheet for waterproof construction, characterized in that the other ends of the lower and upper substrate layers 110 and 130 formed on the lower and upper portions of the waterproof layer 120 are formed to extend and protrude.
The method of claim 2,
The lower substrate layer 110 is made of a polyester material, but is formed to a thickness of 0.8 to 1.3 mm, and the waterproof layer 120 is made in the form of a film and melts when heat is applied to have an adhesive property. A composite sheet for waterproof construction, characterized in that it is made of a material of, but is formed to a thickness of 0.2 to 0.5mm, and the upper substrate layer 130 is made of a polyester material, but is formed to a thickness of 0.1 to 0.5mm. .
The method of claim 2,
A release paper 132 is further attached to the lower surface of the other end of the upper base layer 130 to prevent the other ends of the upper base layer 110 and 130 forming the fitting groove 104 from sticking to each other or adhering to dust. Composite sheet for waterproof construction, characterized in that the

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