KR101586035B1 - Complex waterproofing structure for reinforcing connection using the waterproofing sheet and Construction method thereof - Google Patents

Abstract

The present invention relates to a compound waterproof structure for reinforcing a joint using an air-permeable waterproof sheet and an installation method thereof. Specifically, an effect by a crack or a movement occurring on a floor surface of a concrete structure is minimized. An upper felt layer made of long fiber is thermally bonded on an upper portion of a plastic film layer having a plurality of through holes to prevent a waterproof layer from inflating to perform an effective water proof function around the plastic film layer. A plurality of air-permeable waterproof sheets on which a lower felt layer made of long fiber and napped into a hook form is thermally bonded are disposed on a lower portion of the plastic film layer and arranged at prescribed intervals on the concrete floor surface. A Velcro joint member is attached to a lower surface of the waterproof sheets to connect adjacent waterproof sheets.

Description

TECHNICAL FIELD [0001] The present invention relates to a joint waterproofing structure and a method of constructing the waterproofing sheet,

The present invention relates to a composite waterproof structure for joint reinforcement using a breathable waterproof sheet and a construction method thereof, and more particularly to a joint waterproof composite waterproof structure using a breathable waterproof sheet capable of minimizing occurrence of defects, ≪ / RTI >

Generally, a concrete structure such as a roof slab, a roof, and an underground parking lot of a building is impregnated with rainwater or ground water due to water absorption, drying shrinkage due to the shrinkage and behavior of the concrete, and consequently, the concrete is neutralized, The rebar is corroded and the structural expansion cracks due to the volume expansion, shortening the life of the building.

In order to prevent the above-mentioned phenomenon, the waterproofing technique of the concrete structure has been very important. Typically, the waterproofing technique includes the waterproofing of the film and the waterproofing of the sheet. Fluid Applied Waterproofing is a method to form a waterproof layer by applying or spraying a liquid material on a waterproof base on a paint base. It is excellent in workability to the background cracking followability, adherence, temperature adaptability, complicated shape and local repair However, it is difficult to uniformly apply the coating due to the smoothness of the surface of the substrate, and it has a problem that it is susceptible to impact and there is a risk of fire due to the use of volatile organic solvent.

The sheet waterproofing method is a method in which the waterproof sheet is heated with an adhesive or torch to adhere to the base surface. The method has advantages such as uniform thickness and smoothness, easy construction, easy transportation and low pollution. However, If a waterproof sheet joining portion is inevitably generated, there is a fear of a defect, and there is a problem that a delamination phenomenon occurs due to temperature sensitivity.

Therefore, in recent years, a waterproof sheet having a uniform waterproof property and a uniform thickness is mixed with the advantages of coating waterproofing and sheet waterproofing, and a composite waterproofing layer coated with a coating film waterproofing material, an inorganic elastic coating material, And one such example is disclosed in Korean Patent No. 10-0869167 (hereinafter referred to as "cited invention").

As shown in FIG. 1, a polyester nonwoven fabric is bonded by heat fusion to an upper portion of a sheet having a thickness of 0.8 to 1.2 mm in a synthetic resin sheet, and a plurality of through holes are formed at regular intervals along the edge of the sheet The waterproof sheet was fixed with the lower spot coating material and the upper spot coating material so that the two sheets had a gap of 5 to 10 mm on the back surface of the waterproof sheet, A waterproof sheet fixing method in which a waterproof sheet is adhered to a base body, a urethane film is adhered to the upper part of the waterproof sheet, a urethane coating material is uniformly applied on the upper surface thereof and a top coat layer for preventing slip phenomenon by applying silica sand to prevent yellowing Waterproof structure for exposure.

In the cited invention, due to the through hole formed along the edge of the waterproof sheet, the upper and lower spot coating materials are fixed so as to prevent the breakage or peeling off of the waterproof sheet, There is a problem in that defects are caused by the phenomenon of swelling of the waterproof layer and deterioration of the waterproof layer due to the condensation phenomenon due to the water vapor generation due to the mother hatching caused by the adhesive construction. In addition, when stress is applied to expansion and contraction of the substrate in a region where the base body and the waterproof sheet are fixed, lifting due to the difference in stretching force between the waterproof sheet, the urethane film, and the upper coating film occurs, and the waterproof performance is deteriorated.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and it is an object of the present invention to provide a joint reinforcement type composite structure using an air permeable waterproof sheet having an effective waterproof performance by minimizing the influence of cracks and behavior generated in a bottom surface of a concrete structure, Waterproof structure and a construction method thereof.

In order to accomplish the above object, the present invention provides a joint-reinforced composite waterproofing structure, wherein an upper nonwoven fabric layer composed of long fibers is thermally fused to an upper portion of the plastic film layer having a plurality of through holes formed therein, A plurality of air-permeable waterproof sheets formed of long fibers at the bottom of the waterproof sheet and brushed in the form of a hanging ring and thermally fused together are arranged at predetermined intervals on the concrete floor, and a Velcro- And a member is adhered to connect adjacent waterproof sheets.

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According to another aspect of the present invention, there is provided a joint-reinforced composite waterproof structure construction method, wherein an upper nonwoven fabric layer made of long fibers is thermally fused to an upper portion of a plastic film layer having a plurality of through- A step of installing a plurality of breathable waterproof sheets having a lower nonwoven fabric layer made of long fibers and brushed in the form of a hanging ring on the lower surface of the plastic film layer and thermally fusing the lower nonwoven fabric layer and having a predetermined gap between adjacent waterproof sheets, ; Attaching a Velcro type joint member having an upper surface central portion to which butyl rubber is bonded to a lower surface of the waterproof sheet so as to connect adjacent waterproof sheets, and installing the joint member such that the butyl rubber is positioned at the gap; Applying a sealant layer on the upper surface of the butyl rubber located at the interval, and then installing a glass fiber layer having a mesh structure so as to be impregnated in the sealant layer; Coating a plurality of layers of the elastic film-waterproof layer on the glass fiber layer and the waterproof sheet, and drying and curing the coated layer; And forming a waterproof protective layer by applying an aqueous coating agent to the upper surface of the elastic coating film waterproof layer.

The breathable waterproof sheet according to the present invention is capable of effectively dispersing water vapor by thermally fusing nonwoven fabric on both sides of a plastic film layer having a through hole formed therein and at the same time insulates the waterproof sheet from the concrete base body to minimize swelling, And the joint waterproofing structure using the waterproof sheet forms a butyl rubber at the joint between the waterproof sheets to prevent the waterproof performance from deteriorating at the gap. Also, it is possible to construct a composite waterproof structure excellent in durability, ultraviolet ray resistance, weather resistance, and stain resistance through a joint-reinforced waterproofing construction method including a sealant layer, a glass fiber layer, an elastic film waterproof layer and a waterproof protective layer.

1 is a sectional view showing a waterproof structure using a conventional waterproof sheet,
2 is an exploded perspective view showing the structure of the breathable waterproof sheet applied to the present invention,
FIG. 3 is an exemplary view showing a process in which a joint member is installed to form a joint-reinforced composite waterproof structure using the breathable waterproof sheet according to the present invention. FIG.
4 is a partially cutaway perspective view showing a joint-reinforced composite waterproof structure according to the present invention,
5 is a cross-sectional view showing a joint-reinforced composite waterproof structure according to the present invention,
6 is a flowchart showing a method of constructing a joint-reinforced composite waterproof structure according to the present invention.

In the present invention, the plastic film layer having a plurality of through holes formed therein is formed on the upper side of the plastic film layer so as to minimize the influence of the cracks or the behavior generated on the bottom surface of the concrete structure and prevent the swelling of the waterproof layer, A plurality of air permeable waterproof sheets formed by thermally fusing a lower nonwoven fabric layer made of long fibers and brushed in the form of a hanging ring in the lower part of the plastic film layer are provided on the bottom surface of the concrete And a Velcro type joint member is attached to the lower surface of the waterproof sheet to connect the adjacent waterproof sheets.

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Further, an upper nonwoven fabric layer made of long fibers is thermally fused to the upper surface of the plastic film layer with a plurality of through holes formed thereon, and the lower plastic film layer is made of long fibers and brushed in a hook- Providing a plurality of air-permeable waterproof sheets having a lower nonwoven fabric layer thermally adhered to the concrete floor so as to have a predetermined gap between adjacent waterproof sheets; Attaching a Velcro type joint member having an upper surface central portion to which butyl rubber is bonded to a lower surface of the waterproof sheet so as to connect adjacent waterproof sheets, and installing the joint member such that the butyl rubber is positioned at the gap; Applying a sealant layer on the upper surface of the butyl rubber located at the interval, and then installing a glass fiber layer having a mesh structure so as to be impregnated in the sealant layer; Coating a plurality of layers of the elastic film-waterproof layer on the glass fiber layer and the waterproof sheet, and drying and curing the coated layer; And forming a waterproof protective layer by applying an aqueous coating agent on the upper surface of the elastic coating film waterproof layer.

The scope of the present invention is not limited to the embodiments described below, and various modifications may be made by those skilled in the art without departing from the technical scope of the present invention.

Hereinafter, the joint-reinforced composite waterproof structure using the breathable waterproof sheet of the present invention and its construction method will be described in detail with reference to FIGS. 2 to 6 attached hereto.

2, an upper nonwoven fabric layer 110 is thermally fused on an upper surface of the plastic film layer 120 as shown in FIG. 2, and a lower nonwoven fabric layer 130 is formed on a lower surface of the upper nonwoven fabric layer 110 And is thermally fused.

The plastic film layer 120 may be made of one or more of PE, LDPE, HDPE, PET, PP, EVA, and PU resins having excellent tensile performance, and may be a resin capable of thermal fusion with a nonwoven fabric. Particularly, it is preferable to mix PE and EVA resin which can be recycled, and it may be a recycled film prepared by mixing 70 ~ 80 wt% of new raw material and 20 ~ 30 wt% of recycled raw material.

As shown in FIG. 2, the plastic film layer 120 has a plurality of through holes 121 formed therein. When the waterproof structure is formed using the breathable waterproof sheet 100 of the present invention, The liquid coating material to be applied is impregnated into the top surface nonwoven fabric layer 110 and then impregnated to the bottom nonwoven fabric layer 130 through the through holes 121 to form a coating film in the form of an adhesive film in the waterproof sheet 100. In addition, the plastic film layer 120 is a passage for discharging water vapor generated at the lower end of the waterproof sheet 100, that is, the concrete bottom surface (A), and prevents swelling or buzzing due to water vapor.

The through hole 121 may be formed in various shapes such as a circular shape, an elliptical shape, a square shape, and a diamond shape. When the through hole 121 is circular, when the diameter is less than 2 mm, If the diameter exceeds 10 mm, physical properties such as tensile strength and tear strength of the waterproof sheet 100 may be deteriorated. If too much liquid film material is passed through the waterproof sheet 100 to adhere to the concrete floor surface A, The passage for discharging the gas is clogged. Therefore, as shown in FIG. 2, when the through hole 121 is circular, it is preferable that the diameter is 2 to 10 mm.

The through holes 121 are preferably formed at regular intervals on the entire surface of the plastic film layer 120 so that the waterproof sheet 100 has uniform waterproof performance over the entire surface, .

The upper nonwoven fabric layer 110 is formed of a nonwoven fabric having excellent tensile properties in the longitudinal direction and the width direction and is thermally fused to the upper surface of the plastic film layer 120. The nonwoven fabric forming the upper nonwoven fabric layer 110 is made of PE, PP, PET, Nylon fiber, or the like, a material having excellent impregnation property is preferably produced by a punching method by a needle or water jet method, And may be impregnated to the lower nonwoven fabric layer 130 through the through hole 121. The upper nonwoven fabric layer 110 may be formed of a nonwoven fabric having a weight of 30 to 150 g / m 2.

The lower nonwoven fabric layer 130 is formed of a nonwoven fabric having excellent tensile properties in the longitudinal direction and the width direction and is thermally fused to the lower surface of the plastic film layer 120. The nonwoven fabric forming the lower nonwoven fabric layer 130 is made of PE, PP, PET, Nylon fiber, or the like. As described above, the waterproof sheet 100 of the present invention is formed by forming the lower nonwoven fabric layer 130, which directly contacts the concrete bottom surface 100, with long fibers having excellent tensile strength, tear strength and abrasion resistance, .

In addition, the lower nonwoven fabric layer 130 can be brushed in the form of a hook ring by a needle punching method to firmly bond the lower nonwoven fabric layer 130 and the Velcro type joint member 200, (130) is preferably formed of a nonwoven fabric having a weight of 50 to 200 g / m 2.

As described above, the breathable waterproof sheet according to the present invention is characterized in that the upper nonwoven fabric layer 110 made of long fibers having excellent impregnability is formed on the upper surface of the plastic film layer 120, A lower nonwoven fabric layer 130 made of long fibers made in the form of a hook ring in a cross section different from the shape of fibers is thermally fused to the lower surface of the plastic film layer 120 and the plastic film layer 120 is provided with through holes 121 The water vapor can be effectively dispersed and at the same time the waterproof sheet 100 is insulated from the concrete base material A to minimize the swelling and lifting of the waterproof sheet 100, Thereby suppressing the occurrence of defects.

3 and 6, a joint waterproof composite waterproofing structure using the breathable waterproof sheet described above and a construction method thereof will be described in detail below.

6, the foreign matter is removed from the bottom surface A of the concrete structure on which the waterproof sheet is to be installed, and then the waterproof sheet 100 is applied to the present invention (S10) And installed on the concrete floor A (S20). At this time, the waterproof sheet 100 may be provided after the point coating film material is applied to the concrete bottom surface A on which the waterproof sheet 100 is to be installed, as well as the waterproof sheet 100 may be provided under the waterproof sheet 100 When the lower surface of the nonwoven fabric layer 130 is brushed in the form of a hanging ring, the frictional force with the concrete bottom surface A is increased.

The waterproof sheet 100 applied to the present invention is formed by thermally fusing the upper nonwoven fabric layer 110 and the lower nonwoven fabric layer 130 to the plastic film layer 120 as described above and finally, And a roll having a wide width. Therefore, it is preferable that the waterproof sheet 100 made in the form of a roll is loosened and arranged on the concrete floor A so as to have a predetermined interval 10, wherein the predetermined interval is 3 to 10 mm.

The joint member 200 as shown in FIG. 3 is needed to connect the waterproof sheets 100 arranged at the predetermined intervals 10 as described above. The joint member 200 is formed in a Velcro type so as to be adhered to the lower surface of the adjacent waterproof sheet 100 (S30). Since the waterproof sheet 100 according to the present invention includes the lower nonwoven fabric layer 130, the connection with the adjacent waterproof sheet 100 can be facilitated through the Velcro-type joint member 200, When the lower surface of the joint member 130 is brushed in the form of a hook, the joint member 200 is firmly adhered to the joint member 200.

As shown in FIG. 3, the joint member 200 may be formed to have a band shape having a predetermined length. The joint member 200 may be made of PE, PP, Nylon or the like, Shaped Velcro is formed. At this time, the shape of the hook may be variously shaped like a bent needle, a star shape, a star shape, a mushroom shape, etc., so that it can be easily and firmly combined with a hook ring of a long fiber constituting the lower nonwoven fabric layer 130.

The joint member 200 may be attached to the upper surface of the joint member 200 and the butyl rubber 210 may be positioned at the gap 10. For example, when the width of the joint member 200 is in the range of 50 to 100 mm, the butyl rubber 210 may be formed in the shape of a band along the longitudinal direction of the joint member 200. For example, Is preferably 15 to 50 mm. The butyl rubber 210 plays a role of waterproofing in the interval 10 generated between the waterproof sheets 100 connected by the joint member 200.

After the waterproof sheet 100 is connected to the joint member 200 as described above, the sealant layer 300 is coated on the upper surface of the butyl rubber 210 located at the gap 10 (S40) Is installed in the sealant layer 300 (S50).

The sealant layer 300 and the glass fiber layer 400 are for reinforcing the strength of the joint between the waterproof sheet 100 and the sealant layer 300 is formed of a material such as acrylic, And an elastic epoxy sealant. The glass fiber layer 400 is preferably made of a sticky material coated with an acrylic resin for adhesion with the elastic film waterproof layer 500 to be coated later. As shown in FIG. 4, the glass fiber layer 400 has a mesh structure so that the sealant layer 300 is impregnated and firmly bonded, and the width of the glass fiber layer 400 is preferably 50 to 100 mm.

4, the glass fiber layer 400 is formed in a band shape having a mesh structure. The center portion of the glass fiber layer 400 is impregnated into the sealant layer 300, and both side ends thereof are in the form of wings Thereby improving the impregnation / bonding property with the elastic coating film waterproofing layer 500 to be applied later. At this time, when the width of the glass fiber layer is 50 to 100 mm, the width impregnated with the sealant layer 300 at the center portion is preferably 20 to 60 mm.

Thereafter, the elastic film waterproofing layer 500 is applied on the upper surface of the glass fiber layer 400 and the waterproof sheet 100 in multiple layers (S60), and then dried and cured after each application.

Item Performance criteria Bond strength
(N / mm < 2 & Standard 0.8 or more After immersion Crack There should be no gaps on the surface of the waterproof layer. Absorption amount (γ) 2.0 or less Tensor ability Tensile strength (N / mm 2) 1.0 or higher Elongation (%) Over 50 Permeability 0.3 (N / ㎟) Not to be pumped at water pressure Moisture permeability Sd (m) 4 or less Cracking resistance -10 ° C Not to break 20 ℃ Alkali resistance No abnormality

The elastic film waterproofing layer 500 can be used for various purposes such as adhesion strength, skid resistance, water absorption, tensile performance, resistance to water permeation, moisture (moisture permeability) required in the quality standard of KS F 4919: 2003 (cement-incorporated polymer- Permeability, crack resistance and alkali resistance, and it is particularly preferable to use a product having a Sd (m) value of 4 or less, which indicates moisture permeability, and which has ensured a ventilation performance. In this case, the moisture permeable Sd means the equivalent air layer thickness. For example, when the Sd value of a material is 4 m, the amount of moisture passing through the material is equal to the amount of moisture permeating through the air layer having a thickness of 4 m.

Therefore, when the elastic film waterproofing layer (500) is made of an inorganic elastic coating film, which is one type of cement-incorporated polymer-based waterproofing material, that is, an inorganic elastic coating film using a cementitious inorganic powder specifically blended with an acrylic emulsion having water- It is preferable to use a waterproof material. As described above, the joint-reinforced composite waterproofing structure of the present invention uses the inorganic-based elastic coating waterproofing material having air permeability, so that water vapor dispersed and absorbed in the lower nonwoven fabric layer 130 after the composite waterproofing application is gradually elastic And is discharged to the coating film waterproof layer 500.

The inorganic elastomeric coating material water-repellent material may be a two-part liquid type emulsion type liquid powder and a powder type inorganic powder. In this case, the liquid type resin and the inorganic powder are preferably mixed at a weight ratio of 1: 1 to 1: 1.5 , And then dried and cured to form an inorganic-based elastic film water-proofing layer (500).

The liquid resin provides elasticity and adhesive force of the coating film after drying and curing in the inorganic elastic film waterproofing layer 500. The liquid resin contains 0.2 to 5 parts by weight of a silane coupling agent, 0.1 to 2 parts by weight of a defoaming agent, 0.1 to 2 parts by weight, and the acrylic emulsion has a solid content of 50 to 60% and a glass transition temperature (Tg) of -15 to -35 ° C. The silane coupling agent may be one or more selected from the group consisting of an amino-based, methacrylic-based, and vinyl-based silane coupling agent having a function of binding an inorganic material with an organic material, Can be improved. In addition, when the liquid resin and the inorganic powder are mixed, the defoaming agent suppresses the formation of bubbles due to the use of the mixer and contributes to the formation of a dense coating film by removing the air bubbles on the surface of the coating film when the waterproofing agent is applied. Thereby preventing sedimentation and improving the workability of coating.

In addition, the inorganic powder may improve the physical properties of the inorganic-based elastic coating waterproofing layer 500 due to the hydration reaction of the cement and the curing reaction of the acrylic emulsion after the inorganic-based elastic coating waterproofing material is dried and cured, ) To provide air permeability and extensibility of the inorganic elastic water-repellent water-repellent layer (500). Accordingly, the water vapor generated from the concrete floor surface A is slowly vented to the outside of the waterproof layer, and the elastic waterproof layer 500 is formed to cope with the crack of the concrete floor A due to the high elongation do.

The inorganic powder is usually prepared by mixing 100 to 200 parts by weight of silica sand, 10 to 50 parts by weight of talc, 40 to 100 parts by weight of waste tire powder (50 to 80 mesh), 5 to 20 parts by weight of blast furnace slag, 0.1 to 1 part by weight of a dispersing agent and 0.1 to 2 parts by weight of a powdered antifoaming agent and the silica sand is preferably a product having a particle size of 100 to 400 μm (usually # 7-8). For example, when a mixture of # 7 and # 8 is used, the waterproof layer forms a dense coating film, and the mixing ratio of cement and silica is 1: 1 to 1: 1.5 is the strong bonding force of the waterproof coating, . In addition, the talc hardens the structure of the coating film and improves the effect of preventing the settling of silica sand and the application workability when the waterproofing material is mixed. The waste tire powder maintains the elasticity of the coating film after the coating film is formed, Which is a very important factor for ensuring the ventilation path of the air conditioner. In addition, the blast furnace slag may retard the initial curing reaction rate during application of the waterproofing material, thereby preventing the surface of the waterproof coating film, extending the workable time, and complementing the physical properties that exhibit the long-term strength of the waterproof coating film. In addition, the dispersant is used so that the liquid resin and the inorganic powder can be uniformly mixed with each other by a uniform dispersing effect. The powder antifoaming agent suppresses the formation of bubbles when the waterproofing agent is mixed with the liquid antifoam agent, It is preferable to use a powder defoamer and a liquid defoamer together.

Finally, an aqueous coating agent is applied to the upper surface of the elastic film waterproof layer 500 to form a waterproof protective layer 600 (S70). The aqueous coating agent may be an acrylic-silicone emulsion liquid resin, a filler, a pigment, , More specifically, 10 to 20 parts by weight of calcium carbonate, 1 to 10 parts by weight of talc, 30 to 60 parts by weight of silica, 20 to 40 parts by weight of pigment, 0.1 to 2 parts by weight of dispersant, 0.1 to 1 part by weight of an antifoaming agent, 0.1 to 1 part by weight of a defoaming agent, and 0.2 to 2 parts by weight of a silane coupling agent.

The acrylic-silicone emulsion used in the waterproofing protective layer 600 is a mixture of a polyorganosiloxane having an alkenyl group that is strong against ultraviolet rays and is highly resistant to water, and a polyorganosiloxane having a hydroxyl group such as methyl methacrylate (MMA), butyl acrylate, 2-ethylhexyl methacrylate, 2-ethylhexyl acrylate, and the like. The emulsion has a solid content of 50 to 55% and a glass transition temperature (Tg) of -25 to -5 ° C. Is preferably used. Also, the silane coupling agent may be at least one selected from the group consisting of an amino-based, methacrylic-based, and vinyl-based silane coupling agent having a function of binding an inorganic material with an organic material, And the like can be improved. The average particle diameter of the calcium carbonate or talc is preferably 300 to 500 占 퐉. In the production of the protective coating, it prevents the settling of the pigment or silica sand, and secures the coating workability and hiding power. In addition, the silica sand preferably has a size of 100 to 250 mu m and serves to increase weight and prevent slippage in the case of alarm after application of the protective material.

As described above, the waterproof sheet 100 effectively disperses water vapor generated from the concrete bottom surface A and is insulated from the concrete bottom surface A to minimize the swelling and lifting of the waterproof sheet 100, The reinforced composite waterproof structure is as shown in FIG. 4 and FIG. 5, and it is possible to prevent deterioration of the waterproof performance at the joint between the waterproof sheets 100 and to provide a waterproof sheet having excellent durability, ultraviolet ray resistance, weather resistance, Do.

A: Concrete floor 10: Spacing
100: waterproof sheet 110: upper nonwoven fabric layer
120: plastic film layer 121: through-hole
130: lower nonwoven fabric layer 200: joint member
210: butyl rubber 300: sealant layer
400: glass fiber layer 500: elastic film waterproof layer
600: waterproof protective layer

Claims (9)

The upper nonwoven fabric layer 110 made of long fibers is thermally fused to the upper surface of the plastic film layer 120 with the plastic film layer 120 formed with the plurality of through holes 121 formed thereon, A plurality of air-permeable waterproof sheets formed of long fibers and made of long fibers and brushed in the form of a hanging ring and thermally welded to the lower nonwoven fabric layer 130 are arranged at predetermined intervals 10 on the concrete bottom surface A,
And a Velcro type joint member (200) is adhered to the lower surface of the waterproof sheet (100) to connect the adjacent waterproof sheets (100). The method according to claim 1,
A joint reinforcing type waterproof structure using the breathable waterproof sheet is characterized in that a butyl rubber (210) is bonded to the center of the upper surface of the joint member (200) to waterproof the gap (10). 3. The method of claim 2,
A sealant layer 300 formed on the upper surface of the butyl rubber 210 located at the interval 10 and a glass fiber layer 400 formed of a mesh structure and formed to be impregnated into the sealant layer 300,
Wherein the glass fiber layer (400) is in the form of a band having a mesh structure, the central portion is impregnated in the sealant layer (300), and both side ends are formed in a wing shape placed on the upper surface of the waterproof sheet (100) Joint - reinforced composite waterproofing structure. The method of claim 3,
Further comprising an elastic coating waterproof layer (500) applied on the upper surface of the glass fiber layer (400) and the waterproof sheet (100) in multiple layers. 5. The method of claim 4,
And a waterproof protective layer (600) formed by applying an aqueous coating agent on an upper surface of the elastic film waterproof layer (500). The method according to claim 1,
Wherein the through holes (121) are formed at regular intervals on the entire surface of the plastic film layer (120). The method according to claim 6,
Wherein the through hole (121) is formed in a circular shape, and the diameter of the through hole (121) is 2 to 10 mm. The upper nonwoven fabric layer 110 made of long fibers is thermally fused to the upper surface of the plastic film layer 120 with the plastic film layer 120 formed with the plurality of through holes 121 formed thereon, A plurality of air-permeable waterproof sheets 100 formed of long fibers at the lower portion of the waterproof sheet 100 and having a bristle-shaped bristle-processed lower nonwoven fabric layer 130 are thermally welded to each other to have a predetermined gap 10 between adjacent waterproof sheets 100 (A) on the concrete floor surface;
The waterproof sheet 100 is bonded to the lower surface of the waterproof sheet 100 by connecting a Velcro type joint member 200 having a butyl rubber 210 bonded to the upper surface of the waterproof sheet 100, Installing the joint member (200) so that the joint member (200) is positioned at the interval (10);
Applying a sealant layer (300) on an upper surface of the butyl rubber (210) located at the gap (10), and then installing a glass fiber layer (400) having a mesh structure in the sealant layer (300);
Coating a plurality of layers of the elastic film and waterproof layer (500) on the glass fiber layer (400) and the waterproof sheet (100); And
And forming a waterproof protective layer (600) by applying an aqueous coating agent on the upper surface of the elastic film waterproof layer (500). delete

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