KR101553393B1 - Self adhesive combination waterproofing sheet, the overlapping connection structure using the self adhesive combination waterproofing sheet and the method thereof - Google Patents

Abstract

The laminated joint structure using the self-assembled composite waterproof sheet according to the present invention comprises: a sheet-shaped synthetic polymer waterproof layer (10) made of a synthetic resin material, the self-assembled composite waterproof sheet adhered to construction and civil engineering structures; And a butyl rubber layer (20) including a butyl rubber material and adhered to the object to be contacted by point and adhesion properties and attached to a bottom surface of the synthetic polymer waterproof layer (10), wherein the adhesive waterproof composite sheet The edge of one of the edges of the adhered complex waterproof sheet is referred to as a first side 3a and the edge opposite to the first side 3a is referred to as a second side 3b, Based waterproofing layer 10 and the synthetic polymer based waterproofing layer 10 at the first side 3a and the synthetic polymer based waterproofing layer 10 at the second side 3b, Is extended outwardly by a second length than the butyl rubber layer (20), and when a plurality of the self-contained composite waterproof sheets are successively attached, the first side portion (3a) of one of the adhered composite waterproof sheets Of another self-assembled composite waterproof sheet Second side (3b) the chair by covering the edge portions of their chaksik composite waterproof sheet is led to each other overlapped.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-adhesive composite waterproofing sheet and a self-adhesive composite waterproofing sheet,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lap joint structure using a self-supporting composite waterproof sheet and a self-assembled composite waterproof sheet and a method thereof, Wherein the butyl rubber layer is protruded outward at one side of the synthetic polymer based waterproofing layer and the butyl rubber layer is inserted inward from the edge at the opposite side of the butyl rubber layer, When the multiple composite waterproof sheets are attached to each other in the width direction, the two side portions of each waterproof sheet are tightly coupled with the side portions of the adjacent waterproof sheets in a state where they are overlapped with each other to maximize the waterproof effect of the connection portions between the waterproof sheets The composite waterproof sheet and the self-assembled composite waterproof sheet Lap joint structure and method thereof.

EPDM (ethylene propylene diene monomer), which is widely used for waterproofing in civil engineering and construction, is a polymer composed of ethylene, propylene and diene copolymers and is an elastomer material having excellent weather resistance, heat aging resistance and ozone resistance. This EPDM has been developed as a waterproof material which is most popular in the world because it has excellent chemical stability and can maintain its initial property for more than 20 years and has no change in physical properties due to external environmental factors such as vibration, Most of the externally important buildings are so widely used that they are waterproofed by EPDM.

On the other hand, since EPDM itself is chemically stable and does not chemically react with other materials, an adhesive capable of completely bonding sheets and sheets could not be developed. As a result, the problem of elimination of joints was a problem Recently, this problem has been solved since the heat-sealable EPDM has been developed so that the sheets and sheets can be welded to each other by hot air.

Conventionally, in order to adhere the aforementioned EPDM waterproof sheet to the lower surface of a concrete surface or the like, a solvent type adhesive should be used. In this case, a lot of odor and toxic gas are generated in the operation, There were environmental and health risks such as water supply. Further, since the EPDM waterproof sheet must be applied while applying the adhesive, sufficient knowledge of the adhesive is required, and the work process is complicated, resulting in poor workability.

The inventor of the present invention has developed EPDM-butyl composite type waterproofing sheet with a utility model registration No. 393968 in order to solve the above problem. This is because the butyl rubber layer is laminated on one side of the EPDM rubber layer, The release layer was attached to the rubber layer, and the fiber net made of glass fiber was inserted into the EPDM rubber layer as a reinforcing material. The operator could peel off the releasing paper at the construction site and adhered the butyl rubber layer to the bottom easily and easily . In addition to the excellent waterproofness of the EPDM rubber layer, the utility model has excellent waterproofness and adhesion of the butyl rubber layer, and the butyl rubber layer itself has a secondary waterproof layer to enhance the waterproof effect.

The EPDM-butyl composite type waterproofing sheet according to the inventor's line registration utility model described above had no problem in waterproof performance as such a waterproof sheet itself. However, when the EPDM-butyl composite-type waterproofing sheet was overlapped, In addition, the continuity to the lower butyl rubber layer is cut off, and waterproof defects are likely to occur. In order to prevent such waterproofing, the operator must perform a subsequent caulking operation with a caulking gun on the outside of the overlapped portion, or the EPDM-butyl flashing tape having an appropriate width may be stuck to the outside There is a problem that it is troublesome to give.

For this reason, it has been necessary to develop a new type of self-assembled composite waterproof sheet capable of minimizing the waterproofing at the overlapped portions and facilitating the construction when the EPDM-butyl composite type waterproofing sheet is applied .

In order to solve the problems of the prior art described above, the present invention is characterized in that a butyl rubber layer protrudes more than the synthetic polymer waterproof layer on one side of the self-supporting composite waterproof sheet, and on the opposite side, When the edge portions of the self-assembled composite waterproof sheets are superimposed one upon the other, an integrated primary bonding between the butyl rubber layer and the butyl rubber layer and a secondary bonding by adhesion between the butyl rubber layer and the synthetic polymer waterproof layer, It is another object of the present invention to provide a lap joint structure of a self-assembled composite waterproof sheet capable of forming a complete waterproof structure by a triple bond structure from a synthetic polymer-based waterproof layer and a synthetic polymer waterproof layer to a third- .

In order to solve the above-mentioned problems, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a composite waterproofing sheet, which has a structure in which a worker removes a release paper adhered to a butyl rubber layer of a self- The present invention provides a self-assembled composite waterproof sheet having a waterproof sheet which can be easily adhered to an outer surface of a waterproof sheet,

In addition, the present invention provides a lap joint method using a self-assembled composite waterproof sheet that can easily complete the connection operation of overlapped portions between the self-supporting composite waterproof sheets and can prevent the occurrence of waterproof defects at the overlapped portions The purpose is to provide.

In order to accomplish the above object, the present invention provides a self-assembled composite waterproof sheet comprising: a sheet-shaped synthetic polymer waterproof layer (10) made of a synthetic resin material; And a butyl rubber layer (20) adhered to the object to be contacted by point and adhesion properties including a butyl rubber material and adhered to a bottom surface of the synthetic polymer waterproof layer (10), wherein the synthetic polymer waterproof layer 10, the butyl rubber layer 20 is extended further outward by a first length than the synthetic polymer-based waterproof layer 10, and at the opposite edge thereof, the synthetic polymer-based waterproof layer 10 10), the butyl rubber layer (20) is inserted inward by a second length.

In order to achieve the above-mentioned object, the present invention provides a self-supporting composite waterproofing sheet to be adhered to a building and a civil engineering structure, wherein the self-supporting composite waterproofing sheet comprises a synthetic resin material A synthetic polymer based waterproofing layer 10 made of a sheet in the shape of a sheet; And a butyl rubber layer (20) including a butyl rubber material and adhered to the object to be contacted by point and adhesion properties and attached to a bottom surface of the synthetic polymer waterproof layer (10), wherein the adhesive waterproof composite sheet One edge of one of the edge portions of the composite waterproof sheet is referred to as a first side portion 3a and the edge opposite to the first side portion 3a is referred to as a second side portion 3b, The first side portion 3a of one of the self-contained composite waterproof sheets is covered by the second side portion 3b of another self-contained composite waterproof sheet, So that they are overlapped.

In order to achieve the above-mentioned object, the lap joint method using the self-contained composite waterproof sheet provided by the present invention is characterized in that (a) a release paper (30) attached under the butyl rubber layer (20) of the first self- A first step of removing the first waterproof composite waterproof sheet (1a) and attaching the first waterproof composite waterproof sheet (1a) to the surface of the building / civil engineering structure (60); And (b) removing the release paper (30) attached to the bottom of the butyl rubber layer (20) of the second self-compounding composite waterproof sheet (1b) And a second step of overlapping and attaching the other edge portion of the second self-supporting composite waterproof sheet (1b), wherein the first and second self-adhesive composite waterproof sheets (1a, 1b) Based synthetic resin-based waterproofing layer 10 made of a synthetic polymer based waterproofing layer 10, and a butyl rubber material, which can be adhered to the object to be contacted by the point and adhesion properties, A rubber layer 20 and a release paper 30 adhered to the bottom surface of the butyl rubber layer 20. The first side portion 3a of the adhered composite waterproof sheets 1a and 1b includes the butyl rubber layer 20 ) Is extended outward by a first length than the synthetic polymer-based waterproof layer (10) And the synthetic polymer-based waterproof layer 10 further extends outward by a second length than the butyl rubber layer 20 in the second side portion 3b located on the opposite side, And the second side portion (3b) of the second ad- hering composite waterproof sheet (1b) is covered on the first side portion (3a) of the second waterproof sheet (1a).

The self-assembled composite waterproof sheet according to the present invention is formed by bonding a butyl rubber layer having a self-adhesive property to one side of a synthetic polymer waterproof layer to be suitable for use in waterproofing and waterproofing in various construction and civil engineering structures. Waterproof layer, the butyl rubber layer is protruded outward from the one side of the waterproof layer, and at the opposite side of the waterproof layer, the butyl rubber layer is inserted inward from the edge, It is possible to maximize the waterproof effect of the connection portion between the waterproof sheets and to prevent the waterproof defect from occurring by making the two side portions of the sheet closely coupled with the side portions of the adjacent waterproof sheets in a state of being overlapped with each other.

Particularly, in the self-assembled composite waterproof sheet according to the present invention, the butyl rubber layer protrudes more than the synthetic polymer waterproof layer on one side of the waterproof sheet, and the butyl rubber layer enters further into the synthetic polymer-based waterproof layer When the edge portions of the self-assembled composite waterproof sheets are overlapped with each other, an integrated primary bonding between the butyl rubber layer and the butyl rubber layer, a secondary bonding by adhesion between the butyl rubber layer and the synthetic polymer based waterproof layer, And the third-order bonding by thermal fusion between the synthetic polymer-based waterproof layer and the synthetic polymer-based waterproof layer, thereby achieving a perfect waterproof structure.

In addition, the lap joint structure and method using the self-assembled composite waterproof sheet according to the present invention can simplify the construction of the self-assembled composite waterproof sheet to improve the workability, thereby greatly reducing manpower and cost required for the construction work There are advantages.

Fig. 1 shows a self-assembled composite waterproof sheet 1 according to the present invention.
Fig. 2 is a partially cutaway perspective view of the self-supporting composite waterproof sheet 1 according to the present invention, showing the internal structure of the waterproof sheet 1. Fig.
Fig. 3 is a cross-sectional view of the self-contained composite waterproof sheet 1 of Fig. 1 cut along the line AA.
Fig. 4 is an enlarged view of the portion "B" in Fig. 1, showing a state in which a part of the synthetic polymer-based waterproof layer 10 and a part of the butyl rubber layer 20 are broken.
Fig. 5 is a sectional view of the construction / civil engineering structure 60 in which the side walls of the building / civil engineering structure 60 are partially overlapped with each other, and then the waterproof composite waterproof sheets 1a, 1b and 1c shown in Fig. ≪ / RTI >
Fig. 6 is a cross-sectional view taken along line CC in Fig. 5, and is a sectional view showing a state in which the first self-assembled composite waterproof sheet 1a is attached onto the building / civil engineering structure 60. Fig.
Fig. 7 is a cross-sectional view taken along line DD of Fig. 5, showing the cross-sectional structure of the side overlap region 300 of the first and second composite waterproof sheets 1a and 1b.
8 shows a state in which the synthetic polymer waterproofing layers 10 of the self-contained composite waterproof sheets 1a and 1b are opened to each other by applying a flame to the third overlapping portion 303 by using the heat sealer 70 in the state of FIG. FIG. 9 shows a process of heating the composite polymer waterproofing sheets 10 of the self-contained composite waterproof sheets 1a and 1b by heat welding by the heat welding machine of FIG. FIG.
10 shows a state in which the sealant 81 is applied to the interface of the third overlapping portion 303 of the first and second composite waterproof sheets 1a and 1b in the state of FIG. So that the second side portion 3b of the waterproof sheet 1b is not lifted.
11 is a sectional view of the self-supporting composite waterproof sheet 1 'according to the second embodiment of the present invention, in which the fiber net 12 inserted into the synthetic polymer waterproofing layer 10 extends from the second side 3b And does not enter within a predetermined interval.
Fig. 12 is a cross-sectional view showing a laminated joint structure between the self-contained composite waterproof sheets 1a and 1b using the self-contained composite waterproof sheet 1 'shown in Fig. 11, Based waterproofing layer 10 because the fiber net 12 is not present in the synthetic polymer based waterproofing layer 10 even if the external moisture is present in the synthetic polymer based waterproofing layer 10. [

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout.

Fig. 1 is a perspective view of a self-contained composite waterproof sheet 1 according to the present invention, and Fig. 2 is a partially broken perspective view showing the internal structure of the self-contained composite waterproof sheet 1. Fig. Referring to FIG. 1, the self-assembled composite waterproof sheet 1 according to the present invention is rolled and stored in the form of a roll, and can be unfolded while unrolling the roll 2 at a construction site. A butyl rubber layer 20 is adhered and laminated under the waterproof layer 10 and a release paper 30 is attached under the butyl rubber layer 20.

As shown in Figs. 1 and 2, the butyl rubber layer 20 protrudes outward at a predetermined interval from the first side 3a of the self-bonding composite waterproof sheet 1, and the second In the side portion 3b, the butyl rubber layer 20 is further inward by a predetermined distance. As a result, when considering the synthetic polymer waterproofing layer 10 located on the upper side of the self-supporting composite waterproof sheet 1 of the present invention, the butyl rubber layer 20 adhered therebelow is slightly biased toward the first side portion 3a And it is assumed that they are combined in a state of being connected. As a result, the butyl rubber layer 20 beneath the composite polymer-based waterproof layer 10 protrudes further outward from the first side portion 3a of the self-bonding composite waterproof sheet 1 to form the first side wing portion 310 And the synthetic polymer based waterproof layer 10 above the butyl rubber layer 20 protrudes further outward to constitute the second side wing part 320 on the opposite side of the second side part 3b. 1, reference numeral 3c denotes a "longitudinal end portion" as a portion of the self-contained composite waterproof sheet 1 that is first unwound from the roll 2.

As shown in FIGS. 1 and 2, the release paper 30 attached to the bottom of the butyl rubber layer 20 serves to temporarily protect the butyl rubber layer 20, It is preferable that the self-supporting composite waterproof sheet 1 is formed slightly longer and wider than the self-contained composite waterproof sheet 1 so that the operator can easily remove it from the field.

Fig. 3 is a cross-sectional view of the self-contained composite waterproof sheet 1 of Fig. 1 cut along the line AA, and Fig. 4 is an enlarged view of a portion "B" And a part of the butyl rubber layer 20 is broken.

2 through 4, the self-assembling composite waterproof sheet 1 according to the present invention comprises a synthetic polymer-based waterproof layer 10, a butyl rubber layer 20 laminated on the bottom surface thereof, A first wing portion 310 and a second wing portion 320 are formed on both side portions in the width direction, that is, the first side portion 3a and the second side portion 3b, respectively, .

The synthetic polymer-based waterproof layer 10 having the upper structure in the self-compound waterproof sheet 1 of the present invention is a novel synthetic resin-based waterproof layer 10, which is a new patent application of the inventor of the present invention as disclosed in Utility Model Registration No. 393968 "EPDM- Waterproof sheet ", the upper waterproof layer 11 and the lower waterproof layer 13, each made of EPDM rubber, are joined together in a lapped state, and a fiberglass mesh (12) is inserted as a reinforcing member. The fiber net 12 has a shape in which rectangular holes are regularly arranged. Since the fiber net 12 is woven using glass fiber, there is almost no shrinkage expansion due to temperature change, and the tensile strength is very high. Accordingly, the synthetic polymer-based waterproof layer (10), in which the glass fiber reinforced fiber net (12) is inserted as a reinforcing material, has little shrinkage expansion due to temperature change and has a very high tensile strength. Therefore, The function as the waterproof material can be performed very effectively.

In the present invention, the EPDM rubber used as the material of the upper waterproof layer 11 and the lower waterproof layer 13 of the synthetic polymer-based waterproof layer 10 is obtained by processing a synthetic polymer EPDM rubber to a predetermined thickness by a vulcanization process, It is a waterproof sheet made to meet KS F 4911 standard. Since the fiber net 12 made of glass fiber as the central reinforcing material is inserted between the upper waterproofing layer 11 and the lower waterproofing layer 13, the synthetic polymer waterproofing layer 10 has no shrinking expansion due to the temperature change, The strength is very high. In the specification of the present invention, glass fibers are described as being the most preferable as the material of the fiber net 12. However, in addition to glass fiber, various materials having low elasticity and high tensile strength can be used as the material of the fiber net 12. [ .

The synthetic polymer based waterproofing layer 10 forms a primary waterproofing layer when the self-supporting composite waterproofing sheet 1 according to the present invention is attached to the surface of a building / civil engineering structure. The synthetic polymer based waterproofing layer 10, Has excellent physical properties in all aspects of weatherability, aging resistance and durability, so it can be used sufficiently for exposure as well as unexamination.

3, the thickness T5 of the butyl rubber layer 20 is 0.2 to 3 mm and the thickness T4 of the synthetic polymer waterproof layer 10 is 0.4 to 6 mm. The thicknesses T1 and T3 of the upper waterproof layer 11 and the lower waterproof layer 13 are 0.1 to 3 mm and the thickness of the fiber net T2 is 0.01 to 0.5 mm. Preferably, the thickness of the upper waterproof layer 11 and the lower waterproof layer 13 is 0.25-0.4 mm and the thickness of the butyl rubber layer 20 is 0.3-0.6 mm.

On the other hand, the butyl rubber layer 20 is very fragile in itself and has a strong adhesive force with respect to other objects, so that it is difficult to maintain the protruded portion of the first side portion 3a, that is, the shape of the first wing portion 310 . 2 and 3, in order to support the shape of the butyl rubber layer 20 constituting the first wing portion 310, the end reinforcing fiber web 20 is formed at the bottom edge portion of the butyl rubber layer 20, (25). The end reinforcing fiber net 25 can be manufactured using the same material as that of the fiber net 12 inserted into the synthetic polymer based waterproofing layer 10 and the thickness T6 of the fiber can be changed according to circumstances . The end reinforcing fiber net 25 is bonded to the bottom surface of the butyl rubber layer 20 on the first side 3a so that the butyl rubber layer 20 can easily maintain the shape and strength. It is preferable that the end reinforcing fiber net 25 extend not only in the area of the first wing portion 310 but also in a position further inward. 3, the width S 1 of the first wing portion 310, that is, the butyl rubber layer 20 on the first side portion 3 a further extends to the outside of the synthetic polymer waterproof layer 10, The width S1 of the end reinforcing fiber net 25 is preferably set to 0.5 to 5 cm and the width S3 of the end reinforcing fiber net 25 is set to be 0.7 to 1.5 times the width S1 of the first wing portion . That is, the length S2 of the end portion reinforcing fiber net 25 that is inserted into the synthetic polymer waterproofing layer 10 is determined by the length of the end portion reinforcing fiber net 25 extending to the outside of the synthetic polymer waterproofing layer 10 S1), or may be slightly smaller or longer.

The end reinforcing fiber net 25 preferably has a thickness T6 of 0.01 to 0.5 mm and has a structure in which square holes are regularly arranged due to the grids of the glass fiber, It can sink into the inside.

The width S4 of the second wing portion 320 of the self-supporting composite waterproof sheet 1 may be set to be the same as the width S1 of the first wing portion 310. [

In the present invention, it is preferable that the width W1 of the self-supporting composite waterproof sheet 1 is about 300 to 1500 mm, and the total length is about 10 to 15 m in consideration of the total weight at the time of transportation. As shown in Fig. 1, the self-contained composite waterproof sheet 1 of the present invention can be rolled and rolled. The inventors of the present invention fabricated and tested a sample, and it was judged that the above-mentioned self-bonding complex waterproof sheet 1 had a width W 1 of 1 m and a length of 10 m, which was advantageous for transportation and use.

The butyl rubber layer 20 is formed by reacting a butyl rubber as a main ingredient and a homogeneous reaction of a point, an adhesion promoter and other additives. The butyl rubber layer 20 is formed on the bottom surface of the special surface-treated synthetic polymer waterproof layer 10, A separate adhesive is not required for bonding between the butyl rubber layer 20 and the synthetic polymer waterproofing layer 10. The butyl rubber layer 20 itself has excellent adhesion to all kinds of adherends (base) such as concrete, metal, wood and other painted surfaces, and a secondary waterproof layer As well.

Fig. 5 is a cross-sectional view of the construction / civil engineering structure 60 in which a part of the side faces are overlapped on the surface of the construction / civil engineering structure 60 by waterproof composite waterproof sheets 1a, 1b and 1c shown in Fig. Followed by attaching. Referring to FIG. 5, the self-contained composite waterproof sheets 1a, 1b, and 1c of the present invention have a structure in which a plurality of waterproof sheets are arranged side by side along a width direction thereof and adjacent portions thereof are overlapped with each other So that the waterproof effect at the joint portion is not deteriorated.

5, first, the first waterproof composite sheet 1 a is adhered to the surface of the building / civil engineering structure 60, and then the second waterproof composite waterproof sheet 1 b The second side portion 3b is attached in parallel so as to partially overlap the first side portion 3a of the first ad- hering composite waterproof sheet 1a. And then the third self-compound composite waterproof sheet 1c is attached to the first side 3a of the second self-adhesive composite waterproof sheet 1b so that a part of the second side 3b overlaps do. In this way, the waterproof effect of the widthwise connecting portion is completely achieved by arranging the left and right sides of the self-assembled composite waterproof sheet to overlap each other. In Fig. 5, the first to third self-contained composite waterproof sheets 1a, 1b and 1c are the same as those of the self-contained composite waterproof sheet 1 of Figs. 1 to 4 described above, In order to give the names and reference numerals.

Fig. 6 is a cross-sectional view taken along the line C-C in Fig. 5, and is a cross-sectional view showing a state in which the first self-assembled composite waterproof sheet 1a is first attached onto the building / civil engineering structure 60. Fig. When the first self-assembled complex waterproof sheet 1a is attached to the construction / civil engineering structure 60 for the first time, no waterproof sheet is provided on both sides 3a and 3b. In particular, the second side 3b The synthetic polymer based waterproofing layer 10 constitutes the second side wing portion 320 so that the second side wing portion 320 can not be bonded to the construction / civil engineering structure 60 by itself. In this case, the second side wing portion 320 may be cut with a knife to remove the second side wing portion 320. Alternatively, the second side wing portion 320 may be removed by cutting the caulking gun 320 the second side wing portion 320 may be fixedly attached to the construction / civil engineering structure 60 by applying a sealant using a caulking gun. In Fig. 6, reference numeral 3b-1 indicates a line that can be cut when the second wing portion 320 is cut with a knife, and reference numeral 3b-2 indicates a sealant application possible position.

Fig. 7 is a cross-sectional view taken along the line D-D in Fig. 5, showing the cross-sectional structure of the side overlap region 300 of the first and second composite waterproof sheets 1a and 1b. 7, the second side portion 3b of the second adhering complex waterproof sheet 1b is overlapped on the first side portion 3a of the first self-adhesive composite waterproof sheet 1a, The butyl rubber layer 20 of the first adhering composite waterproof sheet 1a and the butyl rubber layer 20 of the second adhering complex waterproof sheet 1b are adhered to each other so that substantially one body In the second overlapping portion 302, the butyl rubber layer 20 of the second admission type composite waterproof sheet 1b is bonded to the synthetic polymer-based waterproof layer (the second adhering composite waterproof sheet 1a) The composite waterproofing layer 10 of the second adhering composite waterproof sheet 1b and the first adhering composite waterproof sheet 1a underlying the third adhering composite waterproof sheet 1b are adhered to the upper surface of the composite waterproof sheet 10, Based waterproofing layer 10 are simply superimposed in a state in which they do not adhere to each other.

That is, in the lap joint structure of the self-contained composite waterproof sheet according to the present invention, the two adjacent composite waterproof sheets 1a and 1b are overlapped with each other while forming the side overlap region 300, In the first overlapping portion 301 where the butyl rubber layers 20 of the waterproof sheets 1a and 1b meet with each other, the butyl rubber layers 20 are integrally bonded and the butyl rubber layer 20 and the synthetic polymer Adhesion is performed by the one butyl rubber layer 20 in the second overlapping portion 302 where the water-repellent layer 10 meets. In addition, in the third overlapping section 303, only the synthetic polymer-based waterproofing layers 10 of the waterproof sheets 1a and 1b are overlapped with each other so that the adhesion is not yet carried out. However, as shown in FIGS. 8 and 9, 7 and 8) in which the two synthetic polymer waterproofing layers 10 meet are melted so that the heat sealing surfaces 15, 9).

In the present invention, the overall width S7 of the side overlap region 300 can be set to 5 to 20 cm, and more preferably to 8 to 13 cm. The width S1 of the first overlapping portion 301 may be 0.5 to 5 cm and the width S5 of the second overlapping portion 302 may be 3 to 15 cm. The width S3 of the portion 303 may be 0.5 to 5 cm. Meanwhile, according to the existing law on waterproofing, when the waterproof sheets are stacked, it is required to secure a width of the overlapped portion of 100 mm or more. ) Is preferably maintained at 10 to 20 cm.

7, the butyl rubber layer 20 of the first self-adhesive composite waterproof sheet 1a and the butyl rubber layer 20 of the second self-assembled composite waterproof sheet 1b located thereon meet each other Quot ;, and reference numeral 22 denotes a butyl rubber layer 20 of the second self-assembled complex waterproof sheet 1b. The butyl rubber layer 20 of the second self- Refers to a " butyl rubber bonding surface " which is adhered to and adhered to the synthetic polymer-based waterproof layer 10.

8 shows the synthetic polymer waterproofing layers 10 of the self-supporting composite waterproof sheets 1a and 1b by applying the flame 72 to the third overlapping portion 303 by using the heat sealer 70 in the state of FIG. FIG. 9 is a view showing a process in which the synthetic polymer waterproofing layers 10 of the self-contained composite waterproof sheets 1a and 1b are thermally fused by a heating operation of the heat welding machine of FIG. As shown in FIG. The heat welding machine 70 is a device capable of discharging hot air by discharging the air heated by electricity forward by a fan (not shown) Or it may be made of a portable type with a battery.

In addition, the thermal welding between the waterproofing layers 10 of the self-contained composite waterproof sheets 1a and 1b may be performed using a torch lamp using a gas. In this case, the torch lamp is mainly composed of butane gas or the like and burns, and the gas cylinder is combined.

9, after the third overlapping section 303 is heated by the heat sealer 70, the synthetic polymer-based waterproof layer (hereinafter, also referred to as " More specifically, the lower waterproofing layer 13 of the second self-assembled composite waterproof sheet 1b and the upper waterproof layer 11 of the first self-assembled composite waterproof sheet 1a are bonded by heat fusion, Are welded together and joined together in one body.

After the thermal fusion process is completed, the overlap regions 300 of the self-supporting composite waterproof sheets are completely bonded and bonded together.

10 shows a state in which the sealant 81 is applied to the interface of the third overlapping portion 303 of the first and second composite waterproof sheets 1a and 1b in the state of FIG. So that the second side portion 3b of the waterproof sheet 1b is not lifted. The sealant 81 generally refers to a rubbery substance or a soft or highly viscous liquid rubber composition for absorbing elastic shaking, vibration, and deformation between the members together with the functions of airtightness and water tightness between the adhesion portions between the two members. When the sealant 81 is applied to the end portion of the second side portion 3b of the self-compounding composite waterproof sheet 1b of the first adhesive type composite waterproof sheet 1b, It is fixed to the waterproof layer 10, so that the effect of the waterproof treatment can be seen. The sealant coating process described in Fig. 10 may be further performed after the thermal fusing process of Figs. 8 and 9, or may be performed immediately after the state of Fig. 7 without thermal fusing.

11 is a sectional view of the self-supporting composite waterproof sheet 1 'according to the second embodiment of the present invention, in which the fiber net 12 inserted into the synthetic polymer waterproofing layer 10 extends from the second side 3b And does not enter within a predetermined interval. The self-supporting composite waterproof sheet 1 'shown in FIG. 11 is different from the self-contained composite waterproof sheet 1 shown in FIGS. 1 to 10 in that the fiber net 12 inserted in the synthetic polymer- There is a difference in that there is a fiber netting area 17 not extending to the end of the side part 3b of the fiber netting 320 and not containing the fiber net 12. [ The width (S8) of the fiber net spacing region 17 is preferably set to 0.5 to 3 cm. The fiber net 12 is inserted only at a predetermined distance S8 from the edge of the second side 3b and the fiber net 12 is not present in the fiber net separation area 17 as shown in FIG. Moisture, moisture or water from the edge of the second side portion 3b can be prevented from penetrating through the fiber net 12 as if it is a capillary phenomenon. That is, in the second embodiment, since the edge of the second side portion 3b of the synthetic polymer waterproofing layer 10 is formed only by bonding by heat fusion between the upper waterproof layer 11 and the lower waterproof layer 13 made of EPDM rubber, And it is possible to prevent moisture and the like from penetrating into the inside.

12 is a cross-sectional structure of the self-contained composite waterproof sheets 1a and 1b using the self-contained composite waterproof sheet 1 'shown in FIG. 11, and is formed within a predetermined distance from the edge of the synthetic polymer waterproof layer 10 Based waterproofing layer 10 because the fiber net 12 is not present in the synthetic polymer based waterproofing layer 10 even if the external moisture is present in the synthetic polymer based waterproofing layer 10. [

As described above, the self-assembled composite waterproof sheet according to the present invention has a self-assembling butyl rubber layer bonded to one side of a synthetic polymer waterproof layer so as to be suitable for use in waterproofing and waterproofing in various construction and civil engineering structures. Waterproofing layer, the butyl rubber layer is protruded outward at one side of the synthetic polymer-based waterproof layer and the butyl rubber layer is inserted inward from the edge at the opposite side, and when a plurality of the adhered composite waterproof sheets are attached in the width direction The watertightness of the connecting portion between the waterproof sheets can be maximized and the waterproofing can be prevented from occurring by making both side portions of each waterproof sheet overlap tightly with the side portions of the adjacent waterproof sheets.

In addition, when the self-supporting composite waterproof sheet according to the present invention is constructed such that several sheets of waterproof sheets are partially overlapped with each other in the width direction, and then the heat fusion process is simply performed on the composite polymer- Is completed. Therefore, it has an advantage of being excellent in workability and a speed of construction work is very fast. Above all, there is an advantage that a waterproof performance at an overlapped portion can be completely ensured.

1, 1 ', 1a, 1b, 1c: a self-assembled composite waterproof sheet
2: roll 3a: first side
3b: second side 3b-1: cuttable line
3b-2: Sealant application possible position 3c: Lengthwise end
10: synthetic polymer based waterproof layer 11: upper waterproof layer
12: fiber net 13: lower waterproof layer
15: heat-sealing surface 15a:
16: joint surface 17: fiber net area
20: butyl rubber layer 21: butyl rubber combined face
21a: butyl rubber cohesive part 22: butyl rubber bonding face
25: end reinforcing fiber net 30: release paper
60: Building / civil structure 70: Heat fusion machine
71: Frontline 72: Flame
80: sealant caulking gun 81: sealant
300: side overlap region 301: first overlapping region
302: second overlapping portion 303: third overlapping portion
310: first side wing 320: second side wing

Claims (7)

The present invention provides a self-assembled composite waterproof sheet to be adhered to construction and civil engineering structures, the self-assembled composite waterproof sheet comprising: a sheet-shaped synthetic polymer waterproof layer 10 made of a synthetic resin material; And a butyl rubber layer (20) including a butyl rubber material and adhered to the object to be contacted by point and adhesion properties and attached to the underside of the synthetic polymer waterproof layer (10)
One edge of one of the margins of the self-contained composite waterproof sheet is referred to as a first side 3a, and an edge opposite to the first side 3a is referred to as a second side 3b,
The butyl rubber layer 20 is extended and protruded from the synthetic polymer waterproofing layer 10 by a first length to the outside in the first side portion 3a of the self-supporting composite waterproof sheet, and the second side portion 3b The synthetic polymer based waterproof layer 10 is extended outwardly by a second length from the butyl rubber layer 20 so that the first length is 0.5 to 5 cm and the second length is 0.5 to 5 cm Lt;
The synthetic polymer waterproofing layer 10 includes an upper waterproof layer 11 made of a synthetic resin material, a lower waterproof layer 13 made of a synthetic resin material and coupled to a lower portion of the upper waterproof layer 11, And a fiber net (12) interposed between the lower waterproofing layer (13)
When a plurality of the above-mentioned self-contained composite waterproof sheets are successively attached, the first side portion 3a of one of the self-contained composite waterproof sheets is covered with the second side portion 3b of another self-contained composite waterproof sheet, Wherein the composite waterproof sheets have edge portions that are overlapped with each other. The synthetic rubber composition according to claim 1, wherein a portion of the first side portion (3a) where the butyl rubber layer (20) extends further outward than an edge of the synthetic polymer waterproof layer (10) Wherein the end reinforcing fiber net (25) is joined to at least one of the bottom and bottom of the laminated structure. The composite sheet according to claim 1, wherein an area section in which the second side portion (3b) of the second ad- hering composite waterproof sheet (1b) is overlapped on the first side portion (3a)
A first overlapping portion 301 in which the butyl rubber layer 20 of the second admission type composite waterproof sheet 1b is superimposed on the butyl rubber layer 20 of the first matted composite waterproof sheet 1a;
A second overlapping portion 302 in which the butyl rubber layer 20 of the second admission type complex waterproof sheet 1b is overlapped on the synthetic polymer waterproofing layer 10 of the first adhering composite waterproof sheet 1a; ; And
Wherein the synthetic polymer based waterproofing layer (10) of the second admission type complex waterproofing sheet (1b) is superimposed on the synthetic polymer based waterproofing layer (10) of the first adhering composite waterproofing sheet (1a) (303) formed on the upper surface of the laminated structure. The composite waterproof sheet according to claim 3, wherein the third overlapping portion (303) is formed by combining the synthetic polymer-based waterproof layer (10) of the first self-bonding composite waterproof sheet (1a) Wherein the polymer-based waterproof layer (10) is bonded by heat welding. The composite waterproof sheet according to claim 3, wherein the third overlapping portion (303) is formed by combining the synthetic polymer-based waterproof layer (10) of the first self-bonding composite waterproof sheet (1a) Characterized in that the polymer-based waterproof layer (10) is bonded by a sealant. (a) The release paper 30 attached to the bottom of the butyl rubber layer 20 of the first self-assembled complex waterproof sheet 1a is removed, and the first adhering composite waterproof sheet 1a is removed from the surface of the building and the civil engineering structure To a first step; And
(b) The release paper 30 attached to the bottom of the butyl rubber layer 20 of the second self-compounding composite waterproof sheet 1b is removed and the second self-adhesive composite waterproof sheet 1b is removed from the surface of the building and civil structure And a second step of attaching the other side edge portion of the second admission type composite waterproof sheet 1b to the edge portion of one side of the first adhering composite waterproof sheet 1a,
Here, the first and second composite waterproof sheets 1a and 1b include a sheet-like synthetic polymer waterproof layer 10 made of a synthetic resin material, a butyl rubber material, A butyl rubber layer 20 adhered to a contact object and attached to the bottom of the synthetic polymer waterproof layer 10 and a release paper 30 attached to the bottom of the butyl rubber layer 20,
One edge of each of the edges of each of the self-contained composite waterproof sheets 1a and 1b is referred to as a first side 3a and an edge opposite to the first side 3a is referred to as a second side 3b),
The butyl rubber layer 20 is extended and protruded outward by a first length from the synthetic polymer based waterproof layer 10 on the first side portion 3a of the self-supporting composite waterproof sheets 1a and 1b, The synthetic polymer based waterproof layer 10 further extends outwardly from the butyl rubber layer 20 by a second length at the second side portion 3b located at the second side portion 3b, wherein the first length is 0.5 to 5 cm, 2 length is 0.5 to 5 cm,
The synthetic polymer waterproofing layer 10 includes an upper waterproof layer 11 made of a synthetic resin material, a lower waterproof layer 13 made of a synthetic resin material and coupled to a lower portion of the upper waterproof layer 11, And a fiber net (12) interposed between the lower waterproofing layer (13)
The second side portion 3b of the second adhering composite waterproof sheet 1b is covered on the first side 3a of the first adhering composite waterproof sheet 1a so that the adhering composite waterproof sheets 1a, And the edge portions of the first and second waterproof sheets overlap each other. The method according to claim 6,
(c) Synthesis of the first self-assembled composite waterproof sheet (1a) The synthetic polymeric waterproof layer (10) of the polymeric waterproof layer (10) and the second self-assembled composite waterproof sheet (1b) And a third step of heat-sealing the synthetic polymer waterproofing layers (10) by heating with a heat sealer (70).

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