KR101606433B1 - Asphalt waterproof sheet of self-adhesion - Google Patents

Abstract

The present invention relates to a self-adhesive asphalt waterproof sheet which is used in a waterproof work in order to prevent water leakage at a roof or a rooftop of a building, a wall and a parking lot. The present invention relates to a self-adhesive asphalt waterproof sheet including: a self-adhesive type adhesive layer; a mesh member which is buried and integrated in the self-adhesive type adhesive layer; an elastic form which is formed on an upper part of the self-adhesive type adhesive layer; and a waterproof film which is formed on an upper part of the elastic form, in order to perform the waterproof work easily and rapidly, and to improve quality of the waterproof work by preventing deformation of or damage to the waterproof sheet caused by inflow of rainwater or water and a temperature rise.

Description

{ASPHALT WATERPROOF SHEET OF SELF-ADHESION}

The present invention relates to a waterproofing sheet for waterproofing used to prevent water leakage from roofs, rooftops, walls, and parking lots of a building. Waterproofing work can be carried out easily and quickly. A pressure-sensitive adhesive layer, an integrated mesh member embedded in the pressure-sensitive adhesive layer, an elastic foam formed on the pressure-sensitive adhesive layer, And a waterproof film formed on the elastic foam.

With the remarkable development in the construction industry, large-scale construction works such as highways, high-speed railways, high-rise buildings, international airports, subways, and large sports arenas are underway.

In the modern society, it is required to develop construction methods and maintenance, waterproofing material repair materials and construction methods that can achieve more systematic and high performance as the above-mentioned architectural structures become increasingly complicated and larger.

Particularly, when fine cracks occur on the surface of a building, which is exposed to the outside environment such as a roof, a roof, a wall, a parking lot, etc. of the building structure, deterioration of the building structure is progressed due to leakage, Not only can it be reduced, but safety can also cause serious problems.

As a result, various waterproof works are carried out to prevent deterioration of the surface of building structures exposed to the external environment.

Generally, the most typical waterproofing method can be classified into a waterproofing method, a waterproofing method, and a composite waterproofing method.

First, the coating waterproofing method is a method of obtaining a waterproof effect by applying synthetic rubber, asphalt, and synthetic resin-based waterproofing agent having excellent adhesive strength to the surface of a concrete construction structure. Various defects frequently occur due to nonuniformity, air pockets, adhesive layer floating, and the like. Especially, it is impossible to construct according to the water content and wet state of the concrete surface, so there is a limit to confirm the wet state of the concrete structure and to construct it when the concrete is applied.

And the sheet waterproofing method is a method of obtaining a waterproof effect by sticking a waterproof sheet according to standard in a predetermined thickness to a surface of a concrete building structure by a factory, and is superior in safety of construction quality. However, Inevitably, in the case of such an overlapping portion, there is a disadvantage that a great deal of attention must be paid to the construction because the quality of construction may vary depending on the skill of the installation technician and the stability of the joint of the waterproof sheet.

Finally, the combined membrane waterproofing method is a method of obtaining a waterproof effect by using a waterproofing material in which a waterproofing material mixed with a waterproofing sheet and a waterproofing sheet is used. It is a method in which only the merits of a waterproofing and a waterproofing method are combined, The lower layer of the sheet waterproofing material may be dissolved or separated, or the separation between the multiple layers may occur, and the waterproof function may be lost. Also, the construction period is long and the construction cost is very expensive compared to the existing waterproofing and waterproofing There are disadvantages.

In recent years, the waterproofing method of the waterproofing method has been mainly used as a waterproofing method for sheet waterproofing, and a composite waterproofing method for a coated sheet has been mainly used. Recently, a waterproofing method for a self- have.

The waterproofing method of self-spreading sheet is a construction method that can cope with climatic changes in the summer and can be applied without special construction technology because of its excellent adhesive force and convenient construction. It is advantageous in many aspects such as air shortening, There are many construction methods with waterproofing method.

However, the self-supporting sheet construction method also necessarily results in the overlapping part where the sheet is connected to the sheet, and in the case of the construction part, defects of the small part are also watered, which leads to defects and can develop into a fatal defect. , Waterproof sheets that are inexpensive but excellent in performance, and self-supporting waterproof sheets that are easy to install even without the need of skilled workers.

In addition, when the conventional waterproofing sheet is heated by sunlight in summer, the temperature of the rubber asphalt rises and bubbles are generated, which causes a problem of lifting due to deformation or damage of the waterproof sheet.

Patent No. 1176591 (Registered on Aug. 17, 2012, 'Self-paced asphalt waterproof sheet and its manufacturing method') Patent No. 1006473 (Registered 'Decomposition Waterproofing Sheet' Dec. 30, 2010)

Accordingly, the present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide an air bag which is low in cost and excellent in waterproof performance, can be easily shortened without construction of an artisan, And a waterproof sheet which can prevent the waterproof sheet from being lifted due to deformation or damage of the waterproof sheet.

In order to achieve the above object, the self-adhesive waterproof sheet according to the present invention comprises

The present invention relates to a self-adhesive waterproof sheet which is adhered to a surface of a concrete to realize a waterproof function,

Self-adhesive adhesive layer;

A mesh member embedded in the self-adhesive type adhesive layer and integrated;

An elastic foam formed on the pressure-sensitive adhesive layer; And

And a waterproof film formed on the elastic foam.

In the self-adhesive waterproof sheet according to the present invention,

Wherein the self-adhesive adhesive layer is made of rubber asphalt containing polyisobutylene, polyethylene, straight asphalt, and an adhesion-imparting agent.

Further, in the self-adhesive waterproof sheet according to the present invention

The elastic foam is characterized by being made of a glass fiber or a nonwoven fabric containing polyethylene (PE).

Further, in the self-adhesive waterproof sheet according to the present invention

The mesh member comprises rigid polyethylene (PE)

A plurality of first tension portions horizontally arranged in one direction,

And a second tension unit horizontally arranged in a direction orthogonal to the first tension unit to form a plurality of through holes.

 The water-repellent waterproof sheet according to the present invention can easily perform waterproofing by attaching a waterproof sheet to a concrete surface such as a roof, a roof, and a wall of a building, so that it is possible to reduce the construction cost The air can be shortened.

The self-supporting type waterproof sheet according to the present invention has the effect of preventing bubbles from being generated due to the temperature rise of the waterproof sheet, in particular the self-adhesive type adhesive layer, to prevent lifting due to deformation or damage of the waterproof sheet.

In addition, the self-adhesive waterproof sheet according to the present invention can adhere the overlapping portions of the waterproof sheets, which are inevitably generated when waterproofing the self-supporting sheet, to the concrete surface so that the waterproof sheets adhere completely, It is possible to prevent the deterioration of the building structure due to the loss of the waterproof function.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view schematically showing the construction of a water-repellent waterproof sheet according to the present invention. Fig.
Fig. 2 is a perspective view showing a part of a self-adhesive waterproof sheet according to the present invention. Fig.
3 is a cross-sectional view illustrating a detailed structure of the self-adhesive adhesive layer according to the present invention.
4 is a photograph for explaining a sheet waterproofing method using the self-supporting type waterproof sheet according to the present invention.
5 is a perspective view of an apparatus for attaching an overlapping portion of a waterproofing sheet according to the present invention.
FIG. 6 is an exploded perspective view of FIG. 5 and a partial perspective view of the detachment means.
7 is a cross-sectional view for explaining the detaching means of FIG. 6;

While the present invention has been described in connection with certain exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

In the drawings, the same reference numerals are used for the same reference numerals, and in particular, the numerals of the tens and the digits of the digits, the digits of the tens, the digits of the digits and the alphabets are the same, Members referred to by reference numerals can be identified as members corresponding to these standards.

In the drawings, the components are expressed by exaggeratingly larger (or thicker) or smaller (or thinner) in size or thickness in consideration of the convenience of understanding, etc. However, It should not be.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

 In the present application, the term " comprising " or " consisting of ", or the like, refers to the presence of a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

It is to be understood that the first to second aspects described in the present specification are merely referred to in order to distinguish between different components and are not limited to the order in which they are manufactured, It may not match.

In describing the self-supporting type waterproof sheet according to the present invention, if an unambiguous approximate direction reference is specified with reference to FIGS. 1 and 2 for convenience, the direction in which the gravity acts is referred to as downward, Unless otherwise specified in the Detailed Description of the Invention and in the claims that relate to the other Drawings.

Hereinafter, a self-adhesive waterproof sheet according to the present invention will be described with reference to the accompanying drawings.

1 and 2, the present invention relates to a self-adhesive waterproof sheet S which is adhered to a concrete surface C to realize a waterproof function, and is mainly composed of a self-adhesive adhesive layer 100, 300 and a waterproof film 400 are laminated in this order on a surface of the adhesive layer 100. The deformation preventing mesh member 200 is embedded in the adhesive layer 100 to be integrated.

First, the self-adhesive adhesive layer 100 allows the self-adhesive waterproof sheet S to be adhered and fixed to the concrete surface C.

Here, the concrete surface (C) means a concrete surface of a structure in which waterproofing work can be carried out, such as roofs, roofs, walls, or parking lots of various building structures.

P is a primer for improving the adhesive force of the self-adhesive layer 100 when the surface of the concrete is defective and may be applied to the adhesive surface of the self-adhesive adhesive layer 100,

More preferably, the primer (P) is applied to the surface of the concrete before the self-adhesive waterproof sheet (S) is applied, and then the self-adhesive waterproof sheet (S) is adhered to the applied primer layer.

The self-adhesive adhesive layer 100 is made of rubber asphalt containing polyisobutylene, polyethylene, straight asphalt, and an adhesion-imparting agent so as to ensure mobility and low-temperature safety.

More specifically, as shown in [B] of FIG. 3, the rubber asphalt used as the self-adhesive adhesive layer 100 of the present invention has a multilayer structure in which polyisobutylene and polyethylene are mixed and then compressed A first adhesive sheet 110 manufactured by molding; 15 to 45% by weight of straight asphalt, 5 to 10% by weight of blown asphalt, 15 to 25% by weight of a tackifier by catalytic reaction, 10 to 15% by weight of a thermoplastic elastomer and 25 to 35% A second adhesive sheet 120 made of a high-viscosity asphalt adhesive obtained by melt mixing and dispersing at 180 to 210 캜; 5 to 15 weight% of a thermoplastic elastomer, 5 to 20 weight% of a filler, 5 to 15 weight% of a straight asphalt, 5 to 10 weight% of a blun asphalt, % Of the first mixture obtained by melt mixing and dispersing the mixture at 180 to 210 캜 is mixed and dispersed at 100 to 120 캜 with a second mixture obtained by mixing 8 to 15% by weight of a petroleum resin and 10 to 15% And a third adhesive sheet 130 made of a pressure-sensitive adhesive.

The production method of the rubber asphalt is as follows.

(Step 1) Manufacturing Method of First Adhesive Sheet 110

LDPE (Hanwha No. LDPE 5305), LLDPE (Hanwha, No. LLDPE 3125) and HDPE (No. Honpo Petrochemical Co., Ltd., HDPE700F) having a weight average molecular weight (GPC measurement) of 50,000 to 70,000, Are mixed in a Banbury mixer, mixed and extruded to produce a first adhesive sheet 110. The tensile strength of the first adhesive sheet 110 is 4.83 kgf / cm 2 in the transverse direction (MD) and 4.96 kgf / cm 2 in the longitudinal direction (TD). In addition, the elongation percentage of the first adhesive sheet 110 is 682% in the transverse direction and 602% in the transverse direction.

(Step 2) Manufacturing Method of Second Adhesive Sheet 120

In the mixed tank, polybutene (Daelim), which is a low-temperature and catalyzed tackifier, mainly composed of straight asphalt (SK Petrochemical), Blon asphalt (Korea Petroleum Industry Co., Ltd.) and isoprene, styrene butadiene styrene (Kumho KTR Co., Ltd.) and talc (heavy carbon, KKPC) as fillers are melted and mixed and dispersed to produce high viscosity asphalt adhesive. Then, while the temperature is maintained, the high-viscosity asphalt adhesive is applied to one surface of the first adhesive sheet 110 and transferred through a roll to produce a first adhesive sheet 110 and a sheeted second adhesive sheet 120 .

(Step 3) Manufacturing Method of Third Adhesive Sheet 130

Styrene butadiene styrene (SBS) (Kumho KTR Co., Ltd.), which is a thermoplastic elastomer, was charged into a mixing tank and melted at 180 to 210 ° C, Polybutene (Daerim), which is a low-temperature, catalyzed tackifier containing mainly isoprene, is further added, melted and mixed, and then primary dispersed to prepare a first mixture. Then, a second mixture was prepared by mixing a rosin ester (KYOCO KTR) and a butyl rubber (Inter-service LLC, BK-1675N) as a petroleum resin to the first mixture, 1 mixture is mixed and dispersed to prepare a low viscosity asphalt adhesive. The adhesive sheet of the first adhesive sheet 110 and the second adhesive sheet 120 sheeted is conveyed through the rolls while maintaining the temperature at 120 ° C or lower while the low viscosity asphalt adhesive is conveyed to the second adhesive sheet 120 To form a third adhesive sheet 130. The third adhesive sheet 130 is then applied to the upper surface of the third adhesive sheet 130. [

Next, as shown in FIGS. 1 to 3, the mesh-type adhesive layer 100 of the present invention is embedded and integrated with the mesh member 200.

The mesh member 200 is manufactured by a method such as injection molding using a synthetic resin containing hard polyethylene (PE)

2, a plurality of first tensioning units 201 horizontally arranged in one direction, a second tensioning unit 201 horizontally arranged in a direction orthogonal to the first tensioning units 201 to form a plurality of through holes 203, 202).

The mesh member 200 having the above structure is embedded in the self-adhesive adhesive layer 100 of the present invention so as to be structurally coupled to improve the tensile and tear strength of the self-adhesive waterproof sheet S and maintain the shape thereof, Bubbles are generated in the self-adhesive type pressure-sensitive adhesive layer (100) due to the temperature rise of the waterproof sheet (S), thereby preventing the lifting phenomenon due to deformation or damage of the self-supporting waterproof sheet (S).

The mesh member 200 may be manufactured in a state in which the mesh member 200 is placed on the upper surface of the first adhesive sheet 110 before the second adhesive sheet 120 of the second step of the above- And the mesh member 200 is integrated with the adhesive-applied adhesive layer 100 so that the mesh member 200 is embedded in the second adhesive sheet 120 by applying the high viscosity asphalt adhesive.

3, in order to reinforce tensile, tear strength and shape retention using the mesh member 200, the present invention can be applied to a pressure-sensitive adhesive layer (not shown) bonded to the mesh member 200, 100, and the reinforcing member 210 may be integrally embedded.

The reinforcing member 210 includes a body 211 formed in the same horizontal direction as the forming direction of the mesh member 200 (i.e., the forming direction of the first and second tension units 201 and 202) (212) protruding in a vertical direction on one surface of the mesh member (211) and fitted in the through holes (203) of the mesh member (200), but the upright state is changed by elastic force.

The body 211 corresponds to the overall shape of the mesh member 200 and includes a plurality of variable horns 212 formed in a vertical direction orthogonal to the mesh member 200 formed in a horizontal direction on one side So that the variable bores 212 can be inserted into the through holes 203 of the mesh member 200.

It is not necessary that the size and position of the variable hair 212 and the through hole 203 correspond one to one with each other because the variable hair 212 has a predetermined elastic force and the diameter (thickness) The number of the variable bores 212 is larger than the number of the through holes 203 so that when the reinforcing member 210 is fitted into the mesh member 200, It is more preferable that a plurality of variable lenses 212 are inserted into one through hole 203 to fill the through hole 203 while being displaced.

The reinforcing member 210 reinforces the strength by itself only by filling the through hole 203 in which the first and second tension members 201 and 202 of the mesh member 200 are not formed, The viscous asphalt adhesive is applied and cured so as to enclose the reinforcing member 210 in the state where the reinforcing member 210 is sandwiched therebetween and the voids generated by the entangled structure of the similar honeycomb structure formed by the variable brims 212 and the through holes 203 The variable fringe 212 functions as a kind of steel frame so that the adhesion of the self-adhesive type adhesive layer 100, that is, the self-adhesive type waterproof sheet S ), The tensile strength, the tear strength, and the shape retention can be more strongly ensured.

The reinforcing member 210 may be formed by combining the mesh member 200 and the reinforcing member 210 before forming the second adhesive sheet 120 in the second step of the rubber asphalt manufacturing method, The adhesion member 200 and the reinforcing member 210 are placed on the upper surface of the first adhesive sheet 110 so that the high viscosity asphalt adhesive is applied to the adhesive layer 100 (The joint of the member 210) are embedded and integrated.

1 and 2, the elastic foam 300 of the present invention is formed on the self-adhesive type adhesive layer 100, and is positioned between the self-adhesive type adhesive layer 100 and the waterproof film 400 The waterproof film 400 can improve the tensile strength of the waterproof film 400 and improve the scratch resistance of the waterproof film 400 by absorbing shocks from the lower part of the waterproof film 400, Thereby ensuring impact resistance, fatigue resistance, and heat insulation.

The elastic foam 300 may be a low density porous nonwoven fabric having a predetermined elastic force.

Generally, nonwoven fabric refers to a fibrous aggregate in which short fibers are arranged on a three-dimensional web without spinning, weaving, or knitting, and then the fibers are bonded to each other by physical and chemical methods. It shows various properties depending on the forming method, bonding method, kind of adhesive, etc. Recently, the use range has been expanded due to the development of new materials and manufacturing methods.

Conventionally, glass fiber has been used as a material mainly used for producing nonwoven fabric using inorganic fibers, and this has been widely used as a reinforcing agent for automobiles and industrial use. The glass fiber nonwoven fabric is a reinforcing material and is processed into a composite material mixed with various organic materials such as polyurethane, polypropylene, polyethylene, etc., and is widely used as various molded parts through automobile line side board, ceiling material and mold Has come.

The nonwoven fabric as used in the elastic foam 300 of the present invention may include glass fiber or polyethylene (PE).

When the nonwoven fabric comprises glass fiber, it contains an epoxy resin, a curing agent of an epoxy resin, a silane coupling agent containing an epoxy silane, and a nonionic surfactant, wherein the nonionic surfactant is an ethylene oxide adduct of bisphenol A Or polyethylene glycol fatty acid esters, can be used.

The epoxy resin contained in the focusing agent in the present invention is a material having excellent chemical resistance, and when it reacts with the curing agent and hardens, a chemical resistant film is formed on the surface of the glass fiber. However, when the content of the epoxy resin is less than 0.5% by weight in terms of solid content, the above effect is small. When the content is more than 5.0% by weight, the dispersibility of the glass fiber strand in the wet nonwoven fabric is deteriorated. Therefore, the epoxy resin may be an emulsion of an industrially produced epoxy resin such as a bisphenol A-type epoxy resin containing a glycidyl group or a polyfunctional epoxy resin. Or may be obtained by introducing a hydrophilic group (hydrophilic group) by various methods. This type of glass fiber is heated before and after cutting, but the curing agent of the epoxy resin is heated to cure the epoxy resin.

In particular, aminosilane is suitable considering the adhesiveness between the epoxy resin coating and the glass fiber. However, when the content is less than 0.2% by weight, the effect of curing the epoxy resin becomes small. When the content exceeds 3.0% by weight, The dispersibility of the glass strand of the glass is deteriorated.

The capping agent containing an epoxy silane is a material that improves the wettability of the bundling agent with respect to the glass fiber and uniformly covers the bundling agent on the glass fiber surface. However, when the capping agent is less than 0.1% by weight, the above-mentioned action is reduced. When the capping agent is more than 0.3% by weight, the dispersibility of the glass fiber strand in the early stage of aging is deteriorated.

In addition, the ethylene oxide adduct of bisphenol A and the nonionic surfactant of poly (methylene glycol fatty acid ester) are materials for dispersing the glass fiber strands. However, when the amount of the nonionic surfactant is less than 1.0% by weight, the above-mentioned action is reduced. When the amount is more than 4.0% by weight, workability in the processing step is deteriorated.

In the present invention, in addition to the above-mentioned materials, other materials can be contained to such an extent that the property of the focusing agent is not impaired, and cationic fatty acid amides and the like may be added for the purpose of improving radioactivity.

The amount of the bundling agent of the glass fiber in the present invention is preferably 0.1 to 1.0% by weight in terms of ignition loss. That is, when less than 0.1% by weight, the coating on the surface of the glass fiber is insufficient, and sufficient chemical resistance can not be imparted to the glass fiber nonwoven fabric. On the other hand, if it exceeds 1.0% by weight, Acidity deteriorates.

On the other hand, the upper surface of the nonwoven fabric is coated with an organic binder polymer compound, and the organic binder polymer compound is a mixture of one or more kinds selected from an acrylic adhesive compound, a rubber adhesive compound, a silicone adhesive compound and a vinyl ether adhesive compound Can be additionally coated.

Next, the waterproof film 400 of the present invention is formed on the elastic foam 300 to ensure the waterproof property of the self-adhesive waterproof sheet S and to prevent the water-repellent waterproof sheet S from being scratched or scratched, (300), it is possible to prevent the generation of air bubbles in the rubber asphalt of the adhesive-applied layer (100) by providing a warming effect by reflecting light and heat such as sunlight applied to the building structure Function.

The waterproof film 400 is adhered to the lower surface of the waterproof film 400 and adheres to the upper surface of the reinforcing sheet composed of the adhesive-applied adhesive layer 100 and the elastic foam 300 (see sheet waterproofing method described later).

The waterproof film 400 preferably includes hard polyethylene (PE), and may include a low density polyethylene (LDPE).

Antioxidant, anti-blocking agent, slip agent and the like are added to the waterproof film 400 in order to take advantage of the characteristics of the product and light stabilizers . ≪ / RTI >

Hereinafter, a sheet waterproofing method using the self-contained waterproof sheet S having the above-described structure will be described.

The sheet waterproofing method using the self-adhesive waterproof sheet (S)

A) a cleaning step of a concrete surface (C) to be waterproofed;

B) attaching a reinforcing sheet having the elastic foam 300 on the adhesive surface layer 100 to the concrete surface C;

C) attaching the waterproof film (400) to the upper part of the reinforcing sheet; And

D) Pressing the upper part of the waterproof film (400) to finally adhere and cure the waterproofing sheet (S).

The step A) is a sorting operation for flattening the concrete surface.

The method further includes the step of applying the primer P to the concrete surface C in order to improve or improve the adhesive force of the self-supporting type waterproof sheet S depending on the surface defect or wet state of the concrete surface C in the step A) can do.

The reinforcing sheet and the waterproof film 400 formed by integrating the pressure-sensitive adhesive layer 100 and the elastic foam 300 are cut to fit the width of the concrete surface C, And sequentially stacking and adhering them.

After the self-adhesive waterproof sheet S is laminated and attached, the self-adhesive waterproof sheet S is finally bonded by using a roller or the like in the step D).

At this time, the self-adhesive waterproof sheet (S), that is, the reinforcing sheet and the waterproof film (400) are preliminarily manufactured and supplied to a certain standard in the factory. In the B) and C) An overlapping portion O (see FIG. 4) in which the sheets S overlap each other and overlap each other occurs.

In this case, when the waterproof sheet S at the overlapping portion is cut, the waterproof function of completely covering the surface of the concrete S is lost. Therefore, in the step D), the waterproof sheet S is overlapped, It is inevitably forced to adhere by pressure.

Conventionally, in the pasting operation of the overlapping portion O, a common roller is used. However, since excessive force is required for use of the general roller, since the waterproof sheet S is overlapped and thickened and is not completely attached to the concrete , When the working skill is lowered, an empty space is generated on the adhesion surface of the waterproof sheet (S), and this empty space is used as a water path that can penetrate water or excellent water, so that the waterproof function is lost, It can develop into a fatal defect leading to deterioration phenomenon.

In the step D) of the present invention, the overlapping portion O is formed by using the overlapping portion attaching device A having the uneven roller 10 having the protruding pressing portion 12 as shown in FIGS. 5 to 7 The waterproof sheets S are superimposed on each other so as to close the overlapped portion O and block the water path.

As shown in FIG. 5, the lapping apparatus A used in the step D) is roughly divided into a rough roller 10 and a roller And a body 20 coupled thereto.

The uneven roller 10 is composed of a cylindrical body 11 and at least one protruding pressing portion 12 protruding along the outer peripheral surface of the body 11.

The cylindrical body 11 is provided with a rotary coupling hole 11a for coupling a rotary shaft 21 (see FIG. 6) connected to the shaft portions 21A and 21B of the main body 20, Respectively.

The number of protrusion pressing portions 12, the protrusion height, and the spacing distance between the protrusion pressing portions 12 may vary depending on the specification (thickness, etc.) of the self-contained waterproof sheet S to be used, It is preferable that the irregular roller 10 is detachably attached to the main body 20 in accordance with the specification of the waterproof sheet S so that the irregular roller 10 can be replaced and used. (See FIGS. 6 and 7).

The main body 20 of the present invention includes the shaft portions 21A and 21B coupled to the side ends of the cylindrical body 11 of the uneven roller 10. The frame body 20 having the grip portions 22, And a pair of shaft portions 21A and 21B connected to the rotary shaft 21 are respectively provided at one end of the frame 23 and a rotary shaft 21 connected to the two shaft portions 21A and 21B is connected to the body 11 into the rotary coupling holes 11a of the first and second rotary shafts 11a, 11b.

More specifically, the pressing of the overlapping portion O using the overlapping portion attachment device A including the bump roller 10 will be described in more detail.

The apparatus for attaching an overlapping portion A according to the present invention comprises a triangular frame-like main body 20 having a grip 22 as an upper corner point and a shaft portion 21A and 21B provided at both lower corners of the frame 23 A general cylindrical pressurizing roller 13 which is engaged with each other, and a rugged roller 10.

The main body 20 is provided with the pressing rollers 13 arranged in the forward and backward directions and the shaft portions 21A and 21B to which the concave and convex rollers 10 are respectively engaged are arranged at the lower right corners of the triangular frame 23, The force of the operator can be distributed evenly among the rollers.

The grip portion 22 may be of a type that allows the operator to easily hold the main body 20 and move.

4, the surface of the waterproof sheet S of the lapping portion O is pressed against the surface of the waterproof sheet S by the protruding pressing portion 12 So that the wrinkles of the self-contained waterproof sheet S are broken.

Here, the pressurization in the form of a line through the protruding pressing portion 12 means that the pressure is concentrated to a narrow area to such an extent that the wrinkle can be broken while being broken, and pressurized to the address defining width (thickness).

Therefore, when the operator grips the grip portion 22 and presses the upper surface of the waterproof sheet S in the longitudinal direction of the overlapping portion O and moves, the front pressure roller 13 presses the waterproof sheet S The air is discharged from the waterproof sheets S to be primarily attached thereto,

The outer peripheral surface of the body 11 and the protruding pressing portion 12 are secondarily attached while pressing the waterproof sheets S while the pressing roller 13 passes the uneven roller 10, 12, the wrinkles of the waterproof sheets S are broken, and the waterproof sheet S is completely attached, and the water is completely blocked.

That is, when the waterproof sheet S is pressed while being passed through the upper surface of the waterproof sheet S by the irregular roller 10, the waterproof sheet S is pressed and adhered such that a groove is formed in the waterproof sheet S by the protruded pressing portion 12, The waterproof sheets S are not adhered to each other and wrinkles generated in a direction orthogonal to the longitudinal direction of the overlapping portion O are broken to prevent elastic restoration after curing of the waterproof sheet S, So that water can be prevented from penetrating between the waterproof sheets S at the source.

At this time, if the uneven roller 10 (more strictly, the protruding pressing portion 12) is changed while changing the position where the uneven roller 10 is passed during the attaching step, the effect can be doubled.

When the waterproof sheet S is cured, the waterproof sheet 100 is restored to its original shape due to the material properties of the pressure-sensitive adhesive layer 100 and the elastic foam 300 due to the unevenness roller 10, The surface of the substrate S can be uniformly maintained.

As described above, it is more preferable that the irregular roller 10 of the present invention is replaced and used in the main body 20 in accordance with specifications of the self-supporting type waterproof sheet S.

The detachment and replacement of the recessed and recessed rollers 10 can be realized by a method of simply screwing the rotary shaft to the both shaft portions 21A and 21B or the like. However, as the recessed and recessed roller 10 rotates, the screwing of the rotary shaft can be released have.

If the rotary shaft is excessively tightened to prevent this, it is not easy to replace the irregular roller 10, and there is a limit to completely prevent separation of the rotary shaft by screwing.

Thus, the present invention introduces the attachment / detachment means 30 which can easily detach and attach the irregularity roller 10 and prevent the rotation shaft 21 from being separated.

8 and 9 (for convenience of explanation, the grip portion 22 is omitted in [A] of FIG. 8 and the mounting portion 32 is omitted in [B] of FIG. 8) Likewise, the main body 20 is provided with insertion holes 21a and 21b to which the rotary shaft 21 is coupled to the two shaft portions 21A and 21B, and the first shaft portion 21A of the two shaft portions 21A and 21B 21A is attached to the outer side surface of the first shaft portion 21A so that the rotary shaft 21 passes through the first insertion hole 21a of the first shaft portion 21A and is inserted into the second shaft portion 21B, Is inserted into the second insertion hole (21b)

The detachment means (30)

A mounting portion 32 mounted on the outer surface of the first shaft portion 21A,

And a circular inclined portion 33A which is embedded in the mounting portion 32 and resiliently supported to the outside of the mounting portion 32, the rotary shaft 21 is connected to the inner side, The body 33,

A tightening member 34 coupled to an outer surface of the circular body 33 and having a tightening portion 34A exposed to the outside of the mounting portion 32,

A detachment member 31 protruding from an inner inner surface of the mounting portion 32 and composed of a pressing protrusion 35 having a ring portion 35a contacting the circular sloping portion 33A;

An elastic member 36 fixedly coupled to the second insertion hole 21b and having a circular twist portion 36A inserted into a coupling groove 21c formed at an end of the rotation shaft 21 to be inserted,

And a separation button 37 provided on the second shaft portion 21B to press the pressing portion 36a of the elastic member 36 to open the circular twist portion 36A.

The detachable member 31 is provided with a coil spring 38 between the inner surface of the mounting portion 32 and the inner surface of the circular body 33 so that the tightening member 34 is elastically supported on the outer side of the mounting portion 32. [ And a fastening groove 21c is formed in the end portion of the rotary shaft 21 so as to be depressed.

The pressing protrusion 35 is provided so that the hook 35a is engaged with the lowermost face portion 33a of the circular slope portion 33A so that the circular body 33 rotates when the fastening portion 34A is rotated in both directions The lowermost surface portion 33a or the uppermost surface portion 33b of the circular slope portion 33A is engaged with the ring portion 35a so that the rotary shaft 21 is pulled out from the mounting portion 32. [

That is, when the round body 33 rotates, the round slope portion 33A rotates together. Since the circular slope portion 33A is restrained by the ring portion 35a, the lowermost face portion 33a and the uppermost face portion (The rotary shaft 21 - the circular body 33 - the tightening member 34) is pulled out from the mounting portion 32 by the height difference between the upper and lower portions 33a and 33b.

The elastic member 36 is a kind of torsion spring and exerts an elastic force in a direction in which both side ends of the circular twist portion 36A are widened, that is, a direction in which the circular twist portion 36A is caught.

One end of the elastic member 36 is fixedly coupled to the fixing groove of the second insertion hole 21b to function as the fixing portion 36b and the other end of the elastic member 36 is inserted into the second insertion hole 21b, And functions as a pressing portion 36a.

First, when the uneven roller 10 is mounted on the main body 20, the uneven roller 10 is inserted between the two shaft portions 21A and 21B When the rotary shaft 21 of the detachable member 31 is inserted into the first insertion hole 21a and the rotary coupling hole 11a while the rotary shaft 21 is disposed in the second insertion hole 21b .

The uppermost surface portion 33b of the circular sloped portion 33A is rotated toward the annular portion 35a so that the annular portion 35a presses the circular body 33 to rotate the rotary shaft 21 Is drawn out from the mounting portion 32 and protrudes in the direction of the second insertion hole 21b.

When the rotary shaft 21 is projected in this way, the end of the rotary shaft 21 is inserted into the hollow portion of the round twist portions 36A and 47A (for convenience of explanation, the hollow portion of the circular twist portions 36A and 47A in FIG. The circular twist portion 36A is opened and passed, and when the coupling groove 21c reaches the position of the circular twist portion 36A, the circular twist portion 36A is retracted by the elastic force again And inserted into the fastening groove 21c so that the rotary shaft 21 is engaged and fixed to the second shaft portion 21B with a single touch.

In this state, even if the rotary shaft 21 rotates, the convex roller 10 can be firmly and easily attached to the main body 20, since the round twist portion 36A does not cause separation from the second shaft portion 21B .

When the release button 37 provided on the second shaft portion 21B is pushed to release the detachment member 31 from the main body 20 in order to replace the recessed roller 10, The circular body 33 is pushed by the elastic force of the coil spring 38 as the circular portion 36A is opened and released from the coupling groove 21c and the rotation of the rotary shaft 21 is released, The rotary shaft 21 is drawn into the mounting portion 32 and the engaging groove 21c is moved out of the circular twist portion 36A to detach the releasing member 31 to replace the uneven roller 10. [

In the present invention, the above-described detachment means 30 is introduced, and the rotation shaft 21 can be fastened in a one-touch snap manner, so that the unevenness roller 10 can be easily prevented from being detached and replaced.

While the present invention has been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the disclosed embodiments, but may be modified and changed without departing from the scope and spirit of the invention. Such modifications, alterations, and substitutions are to be construed as being within the scope of the present invention.

C: Concrete surface P: Primer
S: self-adhesive waterproof sheet O:
100: Self-adhesive adhesive layer 110: First adhesive sheet
120: second adhesive sheet 130: third adhesive sheet
200: mesh member 201, 202: tension member
203: through hole 210: reinforcing member
211: Body 212: Variable Mo
300: Elastic foam 400: Waterproof film
A: Overlap attaching device
10: rugged roller 11: body
11a: rotation coupling hole 12: projecting pressing portion
20: main body 21A, 21B:
21a, 21b: insertion hole 21c: fastening groove
22: grip part 23: frame
24: support 30: detachment means
31: Desorption member 32:
33: Circular body 33A: Round bevel
33a: lowermost surface portion 33b: uppermost surface portion
34: tightening member 34A:
35: pressing projection 35a:
36: Elastic member 36A: Circular twist
36a: pressing portion 36b:
37: release button 38: coil spring

Claims (4)

(S) adhering to the surface of concrete and realizing a waterproof function,
A self-adhesive adhesive layer (100);
A mesh member 200 embedded in the adhesive-applied adhesive layer 100 and integrated therewith;
An elastic foam 300 formed on the adhesive-applied layer 100; And
And a waterproof film (400) formed on the elastic foam (300)
The mesh member (200)
A plurality of first tension units 201 horizontally arranged in one direction,
And a second tension unit (202) horizontally arranged in a direction orthogonal to the first tension unit (201) to form a plurality of through holes (203)
A plurality of variable bores 212 protruding in a vertical direction on one surface of the body 211 and fitted in the through holes 203 and being upright due to an elastic force, And a reinforcing member (210) coupled to the mesh member (200) and embedded in the adhesive layer (100) so as to be integrated therewith.
The method according to claim 1,
Wherein the self-adhesive adhesive layer (100) is made of rubber asphalt containing polyisobutylene, polyethylene, straight asphalt, and an adhesion imparting agent.
3. The method of claim 2,
Characterized in that the elastic foam (300) is made of a nonwoven fabric containing glass fiber or polyethylene (PE).
4. The method according to any one of claims 1 to 3,
Wherein the mesh member (200) comprises hard polyethylene (PE).

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