KR20210136633A - Self-adhesive water-proof sheet integrated with protective material and water-proof method using the same - Google Patents

Abstract

The present invention relates to a protection material-integrated self-adhesive waterproof sheet and a waterproofing construction method using the same. The protection material-integrated self-adhesive waterproof sheet includes: a lower release paper (110); a waterproof sheet (120) laminated on the lower release paper (110); an upper both-sided release paper (130) laminated on the waterproof sheet (120); and a protection material (140) laminated on the upper both-sided release paper (130). The upper both-sided release paper (130) includes an upper both-sided release paper (131) on one side and an upper both-sided release paper (132) on the other side, which are provided separately. Therefore, a part of the upper both-sided release paper (131) on one side and a part of the upper both-sided release paper (132) on the other side are located to be overlapped with each other in a longitudinal direction of the waterproof sheet (120) to form an overlapped part (133). Therefore, the present invention is capable of enabling quick construction and preventing damage to a waterproof layer and a protection layer.

Description

Self-adhesive water-proof sheet integrated with protective material and water-proof method using the same

The present invention relates to an integrated self-adhesive waterproofing sheet and a waterproofing construction method using the same, and more particularly, the waterproofing sheet and the protective material are integrally formed, and the waterproofing performance is improved by alternately stacking adjacent waterproofing sheets and protective materials in the seam area. It relates to an integrated self-adhesive waterproofing sheet capable of minimizing the occurrence of defects such as peeling or water leakage, and a waterproofing construction method using the same.

In general, cracks occur in concrete structures due to the characteristics of the material, and rainwater penetrates through these cracks, thereby reducing the durability and lifespan of the concrete structure.

The currently widely used waterproofing methods are typically coating film waterproofing that forms a waterproofing layer by applying a liquid waterproofing material, sheet waterproofing that attaches a waterproofing sheet to a concrete structure, composite waterproofing in which coating film waterproofing and sheet waterproofing are combined, and gel-type coating film There are double-composite waterproofing that installs sheet waterproofing after applying ash, and self-adhesive waterproofing method using a self-adhesive waterproofing sheet attached to the body by self-adhesive force.

Among them, the coating waterproofing method is widely used because it is easy to construct and can be installed on complex structures and can produce various colors.

The sheet waterproofing method using the waterproofing sheet has the advantage that the waterproofing sheet product is standardized and can form a homogeneous waterproofing layer. There is a problem that the quality is different depending on it.

In the case of the composite waterproofing method, it is widely used in the repair of old concrete structures because it can compensate for the shortcomings of waterproofing coatings and waterproofing sheets. As this occurs, there is a problem that continuous maintenance work is required. There is a problem of falling into space and causing pollution.

Due to such a problem, a self-adhesive waterproof sheet that does not require a heating operation has been developed. In the case of the double-sided self-adhesive waterproof sheet developed to improve this, it is impossible to walk on the upper part of the waterproof sheet after construction, so there is a problem that the subsequent process cannot be performed immediately.

On the other hand, in general, after completing the waterproof construction, a subsequent process of pouring pressed concrete follows. Before pouring the pressed concrete, a waterproof protective layer is separately installed to protect the waterproof layer from external impacts such as falling objects.

However, when the waterproof protective layer is poured on site, there is a problem that it takes a long time for preparation and curing time, and when using a porous plate such as polyethylene foam, the quality of the waterproof layer is guaranteed because it is greatly affected by moisture. There is a problem that does not occur, and when a polyethylene sheet or polyvinyl chloride sheet is used, there is a problem that it is vulnerable to wind and the buffer action is not sufficient.

Accordingly, a new waterproof sheet capable of solving the problems of the above-described waterproof construction method and waterproof protective layer construction method and a waterproof construction method using the same are required.

Registered Patent No. 10-0949570 (Registered on March 18, 2010)

In the present invention, the waterproof sheet and the protective material are integrally formed, and by alternately stacking adjacent waterproof sheets and protective materials in the seam area, the waterproof performance can be increased and the occurrence of defects such as peeling or water leakage can be minimized, and an integrated self-adhesive waterproof sheet using the same To provide a waterproof construction method.

One embodiment of the present invention for achieving the object as described above relates to a protective material-integrated self-adhesive waterproof sheet, the lower release paper 110; a waterproof sheet 120 laminated on the lower release paper 110; and a protective material 140 laminated on the upper double-sided release paper 130 and the upper double-sided release paper 130 laminated on the waterproof sheet 120 .

At this time, the upper double-sided release paper 130 includes one upper double-sided release paper 131 and the other upper double-sided release paper 132 which are provided separately, respectively, and the one-side upper double-sided release paper along the longitudinal direction of the waterproof sheet 120 . A portion of the other side of 131 and a portion of one side of the other upper double-sided release paper 132 are positioned to overlap each other to form an overlapping portion 133 .

The width of the upper double-sided release paper 130 and the protective material 140 may be formed to be larger than the width of the waterproof sheet 120 .

The waterproof sheet 120 may include a central substrate 121 and waterproof compound layers 122 and 123 formed on both surfaces of the central substrate 121 .

An adhesive layer 141 may be formed on a lower surface of the protective material 140 .

Another embodiment of the present invention relates to a method of waterproofing construction using the protective material-integrated self-adhesive waterproofing sheet, and may be constructed in a multi-step manner.

First, the first lower release paper 110a, the first waterproof sheet 120a, the first upper double-sided release paper 130a and the first protective material 140a are sequentially stacked, and the first upper double-sided release paper 130a is, A first protective material-integrated self-adhesive waterproof sheet (100a), which is provided separately and is composed of a first upper double-sided release paper (131a) on one side and a first upper double-sided release paper (132a), each of which is formed to overlap each other along the longitudinal direction; and a second lower release paper 110b, a second waterproof sheet 120b, a second upper double-sided release paper 130b and a second protective material 140b are sequentially stacked, and the second upper double-sided release paper 130b is, respectively A second protective material-integrated self-adhesive waterproofing sheet (100b), which is separately provided and consists of a second upper double-sided release paper (131b) on one side and a second upper double-sided release paper (132b) formed so that some of them overlap each other along the longitudinal direction; preparing; may be performed.

Next, the first and second lower release papers 110a and 110b are removed, the first protective material-integrated self-adhesive waterproofing sheet 100a is attached to one side of the construction target surface, and the second protective material is attached to the other side of the construction target surface. The one-piece self-adhesive waterproof sheet (100b) is attached, but one lower surface of the second protective material-integrated self-adhesive waterproof sheet (100b) is attached to overlap the upper surface of the other end of the first protective material-integrated self-attached waterproof sheet (100a). Step 1; may be performed.

Next, after separating a part of the first other upper double-sided release paper 132a from the first waterproof sheet 120a so that the other end of the first waterproof sheet 120a is exposed to the outside, the second waterproof sheet 120b ) by attaching one end to the upper surface of the other end of the first waterproof sheet 120a to form an overlap waterproofing layer 151; may be performed.

Next, a part of the second one-side upper double-sided release paper 131b is separated from the second waterproof sheet 120b so that one end of the second waterproof sheet 120b is exposed to the outside, and the first protective material integrated self-adhesive waterproof sheet ( After removing the first other upper double-sided release paper 132a from 100a), a third step of attaching the other end of the first protective material 140a to one end upper surface of the second waterproof sheet 120b; may be performed.

Next, after removing the second one-side upper double-sided release paper 131b from the second protective material-integrated self-adhesive waterproof sheet 100b, one end of the second protective material 140b is attached to the upper surface of the other end of the first protective material 140a. A fourth step of forming the overlapping protective layer 152 by doing so may be performed.

The width of the waterproof layer 151 may be 4-70 mm.

The width of the overlap waterproofing layer 151 may be smaller than or equal to the width of the overlapping protective layer 152 .

Before the first step, the step of forming a primer layer by applying a primer to the construction target surface may be further performed.

Alternatively, before the first step, the step of forming a waterproof coating film layer by applying the waterproof coating film composition to the construction target surface may be further performed.

The protective material-integrated self-adhesive waterproofing sheet of the present invention and a waterproofing construction method using the same do not require a separate heating operation because the self-adhesive waterproofing sheet is used, so the workability and work safety are excellent, and the waterproofing layer and waterproofing layer through one construction Since the protective layer on the upper surface is formed at the same time, quick construction is possible.

In addition, there is an advantage that other operations such as walking, material transport, loading, etc., and subsequent processes such as pressing concrete pouring can be performed immediately after construction, and there is an advantage in that damage to the waterproofing layer and protective layer can be prevented due to these subsequent processes. .

In addition, the overlapping portion of the waterproof layer is formed to overlap the overlapping portion of the protective layer, thereby minimizing defects in the joint portion such as water leakage in the overlapping portion.

1 is a cross-sectional view of a protective material-integrated self-adhesive waterproof sheet according to an embodiment of the present invention.
Figure 2 is a cross-sectional view of the first and second protective material integrated self-adhesive waterproof sheet.
3 to 6 are cross-sectional views showing step-by-step a waterproof construction method using a protective material-integrated self-adhesive waterproof sheet according to an embodiment of the present invention.
7 is a cross-sectional view of a protective material-integrated waterproof layer constructed according to a waterproof construction method using a protective material-integrated self-adhesive waterproofing sheet according to an embodiment.

Hereinafter, before describing in detail through preferred embodiments of the present invention, terms or words used in the present specification and claims should not be construed as being limited to conventional or dictionary meanings, and meanings consistent with the technical spirit of the present invention and should be interpreted as a concept.

Throughout this specification, when a part "includes" a certain component, this means that other components may be further included, rather than excluding other components, unless otherwise stated.

In each step, the identification code is used for convenience of description, and the identification code does not describe the order of each step, and each step may be performed differently from the specified order unless the specific order is clearly stated in the context. have. That is, each step may be performed in the same order as specified, may be performed substantially simultaneously, or may be performed in the reverse order.

In order to clearly explain the invention proposed in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification. In addition, "unit" described in the specification means one unit or block that performs a specific function.

Hereinafter, an embodiment of the present invention will be described. However, the scope of the present invention is not limited to the following preferred embodiments, and those skilled in the art can implement various modified forms of the contents described herein within the scope of the present invention.

First, the present invention relates to a protective material-integrated self-adhesive waterproof sheet and a waterproof construction method using the same. As the waterproofing layer and the protective layer on the upper surface of the waterproofing layer are formed at the same time through There is an advantage in that it can prevent damage to the waterproof layer and the protective layer.

In addition, the overlapping portion of the waterproof layer is formed to overlap the overlapping portion of the protective layer, thereby minimizing defects in the joint portion such as water leakage in the overlapping portion.

1 is a cross-sectional view in the width direction of a protective material-integrated self-adhesive waterproof sheet 100 according to an embodiment of the present invention. a waterproof sheet 120 laminated on the lower release paper 110; and a protective material 140 laminated on the upper double-sided release paper 130 and the upper double-sided release paper 130 laminated on the waterproof sheet 120 .

This protective material-integrated self-adhesive waterproofing sheet 100 is manufactured and stored in a roll form during manufacture, and may be wound and used during construction work. It is defined in the width direction of the sheet. In the drawings, a cross-section in the width direction is shown, and this definition is equally applied in the present specification.

The waterproof sheet 120 includes a central substrate 121 and waterproof compound layers 122 and 123 formed on both sides of the central substrate 121, and the waterproof sheet 120 is a construction target due to the adhesion of the waterproof compound layer. Forms an adhesive force with the surface or the protective material 140 . Specifically, the lower surface of the waterproof sheet 120 forms an adhesive force with the construction target surface, and the upper surface forms an adhesive force with the protective material 140 , and a portion of the upper surface forms an adhesive force with another waterproof sheet as will be described later.

Specifically, as the central substrate 121 constituting the waterproof sheet 120, a polypropylene woven fabric, a glass fiber woven fabric, a polyester woven fabric, a polypropylene non-woven fabric, a fiber material such as a polyester non-woven fabric, a polypropylene film, a polyethylene terephthalate film Various sheet materials such as a film material such as a urethane resin sheet, a two-way or three-way overlapping polyethylene film, a thermoplastic olefin (TPO) film, or a composite sheet material in which a film material is laminated on a fiber material may be used.

The waterproof compound layers 122 and 123 constituting the waterproof sheet 120 are made of a self-adhesive compound composition, and since it is the waterproof sheet 120 made of the self-adhesive compound composition, a separate for expressing adhesive force It has the advantage of excellent workability and work safety as it can be constructed at room temperature without a heating process.

The self-adhesive compound composition may include an asphalt compound composition, a butyl rubber compound composition, or both. Each of the waterproof compound layers 122 and 123 may be configured to include different types of self-adhesive compound compositions, but is preferably configured to include the same type of self-adhesive compound compositions.

The asphalt compound composition includes 10 to 35 parts by weight of a modifier, 10 to 44 parts by weight of an adhesive, and 25 to 68 parts by weight of a softener with respect to 100 parts by weight of asphalt.

Asphalt is added to increase watertightness and provide watertightness and adhesion at the same time, and at least one selected from the group consisting of natural asphalt, straight asphalt, and blown asphalt may be used.

Modifiers are added to increase the elasticity and temperature resistance of the asphalt compound composition. SBS rubber, SEBS rubber, SBR rubber, SBR rubber latex, chloroprene rubber, EPDM rubber, ethyl vinyl acetate, atatic polypropylene (APP), amorphous At least one selected from the group consisting of polyolefin (APAO), polyethylene, polypropylene, and waste tire powder may be used, and SBS rubber may be preferably used.

The modifier may be included in an amount of 10 to 35 parts by weight based on 100 parts by weight of the asphalt, and when it is added in an amount of less than 10 parts by weight, the modification efficiency is insignificant, and when it exceeds 35 parts by weight, there is a risk of lowering the waterproofing properties. It is preferable to be included within.

At least one compound selected from the group consisting of C5-C9 petroleum resin, polybutene, polyisobutylene (PIB), rosin (rosin) and rosin ester may be used as the pressure-sensitive adhesive, and when added in less than 10 parts by weight Since the adhesion improvement effect is insignificant, and when it exceeds 44 parts by weight, waterproofness and physical properties may be reduced, it is preferably included within the above-described weight range.

The softening agent is added to improve plasticity during processing of the composition, and performance as a softener is expressed only when 25 parts by weight or more is added, and when it exceeds 68 parts by weight, physical properties are deteriorated due to excessive plasticity increase. It is preferable to be included within.

At least one emollient selected from the group consisting of naphthenic oil, paraffinic oil, aromatic oil, dioctyl phthalate, dioctyl adipate, dimethyl adipate, dibutyl phthalate and diisononyl phthalate may be used as the emollient. However, the present invention is not limited thereto.

The asphalt compound composition may further contain 50 to 200 parts by weight of a filler for increasing the compressive strength, and the filler is at least selected from the group consisting of calcium carbonate, talc, silica, mica, clay, fly ash, bentonite, and cement. Any one or more may be used, but is not limited thereto.

On the other hand, the butyl rubber compound composition is a self-adhesive compound composition in which 15 to 46 parts by weight of a process oil and 28 to 53 parts by weight of a softener are mixed with respect to 100 parts by weight of butyl rubber.

Butyl rubber has excellent watertightness, elasticity and adhesion, so it has excellent performance as a waterproofing material. The butyl rubber used in the present invention may be a vulcanized butyl rubber or an unvulcanized butyl rubber.

The process oil is added to increase processability by lowering the viscosity of the composition, and at least one of naphthenic oil, aromatic oil, and paraffinic oil may be used. Preferably, naphthenic oil may be used, and when it is included in less than 15 parts by weight, the effect of improving processability is insignificant, and when it exceeds 46 parts by weight, workability and physical properties may be reduced due to excessive viscosity reduction. It is preferably included within one weight range.

The softening agent is added to soften butyl rubber to improve plasticity during processing, and at least one compound selected from the group consisting of dioctyl phthalate, dibutyl phthalate and diisononyl phthalate may be used, but is limited thereto it is not

The butyl rubber compound composition may further include additives as necessary, and as such additives, at least one pressure-sensitive adhesive selected from the group consisting of petroleum resin, polybutene, rosin and rosin ester, calcium carbonate, carbon black, At least one filler selected from the group consisting of talc, silica, mica, clay, fly ash, bentonite, and cement may be included, but is not limited thereto.

On the other hand, as described above, since the waterproof sheet 120 is a double-sided self-adhesive waterproof sheet having adhesiveness on both sides, the release papers 110 and 130 are laminated on both sides, so that other sheets or foreign substances during manufacture, transportation, and construction It is possible to prevent adhesion and loss of adhesiveness.

The lower release paper 110 is laminated on the lower surface of the waterproof sheet 120, and the upper double-sided release paper 130 is laminated on the upper surface of the waterproof sheet 120. 131 and the other upper double-sided release paper 132, a portion of one upper double-sided release paper 131 and a part of the other upper double-sided release paper 132 are positioned to overlap each other to form an overlapping portion 133. The upper double-sided release paper disposed on the upper part of the overlapping portion 133 may be one upper double-sided release paper 131 , or the other upper double-sided release paper 132 .

Specifically, one upper double-sided release paper 131 is laminated on one upper surface of the waterproof sheet 120, and the other upper double-sided release paper 132 is laminated on the other upper surface of the waterproof sheet 120, and one upper upper double-sided release paper 131 is laminated. The other end and one end of the other upper double-sided release paper 132 are positioned to overlap each other to form an overlapping portion 133 along the longitudinal center of the protective material-integrated self-adhesive waterproof sheet 100 .

At this time, in the overlapping portion 133, the surface where the upper double-sided release paper 131 and the other upper double-sided release paper 132 contact each other is a non-adhesive area in which no adhesion is made, so the upper side of one side in the overlapping portion 133 during construction Since the double-sided release paper 131 and the other upper double-sided release paper 132 can be easily separated, construction convenience can be improved.

A protective material 140 for protecting the waterproof sheet is formed on the upper double-sided release paper 130 . Conventionally, the waterproofing sheet 120 and the protective material 140 are provided as separate sheets, and waterproofing was performed in a two-step method of constructing the waterproofing sheet 120 and then the protective material 140 , but in the present invention, waterproofing Since the sheet 120 and the protective material 140 are integrally formed, both the waterproof layer and the waterproof layer protection construction can be performed with one construction, thereby lowering the work difficulty and significantly shortening the construction time.

The protective material 140 protects the waterproof sheet 120 from external impact, and can improve the overall tensile strength of the protective material-integrated self-adhesive waterproof sheet 100. can For example, a film made of at least one material selected from the group consisting of polypropylene, low density polyethylene, high density polyethylene, polyethyl phthalate, polyvinyl chloride and ethylene vinyl acetate may be used as the protective material 140 .

The upper double-sided release paper 130 and the protective material 140 may be formed to have a width greater than that of the waterproof sheet 120. By being large, the waterproofing sheet ( 120) can obtain a more effective protection effect, which will be described in more detail later in the waterproof construction method.

On the other hand, an adhesive layer 141 may be formed on the lower surface of the protective material 140 , and the adhesive layer 141 is formed to form mutual adhesion in a region where two adjacent protective materials 140 overlap during construction. As shown in the drawing, the adhesive layer 141 may be formed on the entire lower surface of the protective material 140 , or may be formed along one or both ends of the protective material 140 , and formed on one lower surface of the protective material 140 . In this case, the construction may be made such that one end of the protective material 140 is located at the uppermost end.

The adhesive layer 141 may include a room temperature curable or pressure-sensitive adhesive composition containing at least any one of urea resin, resorcinol resin, phenol resin, acrylic resin, urethane resin, and chloroprene rubber, but is limited thereto it is not

On the other hand, an embodiment of the present invention relates to a waterproof construction method using the protective material-integrated self-adhesive waterproofing sheet 100, and a plurality of these protective material-integrated self-adhesive waterproofing sheets 100 are constructed side by side in the width direction during waterproof construction. In the area where two adjacent protective material-integrated self-adhesive waterproof sheets 100 overlap, the waterproof sheet 120 is first overlapped, and the protective material 140 is overlapped thereon to obtain a double overlapping and protective effect. It is possible to more effectively prevent the problem of leakage or damage.

Hereinafter, a waterproof construction method using the protective material-integrated self-adhesive waterproof sheet 100 will be described.

At this time, as shown in FIG. 2 , the first protective material-integrated self-adhesive waterproof sheet 100a and the second protective material-integrated self-adhesive waterproof sheet 100b are constructed as the protective material-integrated self-adhesive waterproof sheet 100 as an example. , but is not limited thereto, and a larger number of the protective material-integrated self-adhesive waterproofing sheet 100 may be constructed according to the area of the construction target surface on which the waterproof construction is made.

In addition, the left side is defined as one direction and the right side is defined as the other direction based on the drawing, and the components constituting the first protective material-integrated self-adhesive waterproof sheet 100a are indicated by adding “a” to the reference numerals, and the second Components constituting the protective material-integrated self-adhesive waterproofing sheet 100b are indicated by adding “b” to the reference numerals.

The waterproof construction method of the protective material-integrated self-adhesive waterproof sheet according to an embodiment of the present invention consists of first preparing the protective material-integrated self-adhesive waterproofing sheet 100 and attaching it to the construction target surface in a multi-step manner.

Before such waterproof construction work is performed, a pre-treatment step of removing foreign substances on the construction target surface to be constructed and planarizing may be performed first. This step may be selectively performed as needed, and in this step, foreign substances such as dust, sand, and fallen leaves present on the construction target surface may be removed, and irregularities may be flattened and prepared. The foreign matter removal operation may be performed manually or by watering treatment, but in the latter case, it is preferable to perform waterproofing construction by attaching the protective material-integrated self-adhesive waterproofing sheet 100 after drying the construction target surface after the watering treatment. do.

In addition, before the operation of attaching the protective material-integrated self-adhesive waterproof sheet 100 is made, applying a primer to the construction target surface to form a primer layer, or applying a waterproof coating film composition to form a waterproof coating film layer may be further performed, and when the pretreatment step is performed, this step may be performed between the pretreatment step and the protective material-integrated self-adhesive waterproof sheet attachment step.

At this time, only one of the primer layer and the waterproof coating layer may be formed. Therefore, it is preferable that only one coating layer is formed.

The primer layer may be formed to increase the adhesion of the construction target surface so that the protective material-integrated self-adhesive waterproof sheet 100 is more strongly adhered to the construction target surface. , a butyl rubber primer composition and the like may be used.

When the waterproof coating layer is formed, the composite waterproofing effect can be obtained through the additional waterproofing effect of the waterproofing coating layer in addition to the waterproofing effect of the sheet-type protective material-integrated self-adhesive waterproofing sheet 100 . In this case, as the waterproof coating layer, a waterproof coating layer using a urethane waterproof composition, a urea waterproof composition, an epoxy waterproof composition, an acrylic waterproof composition, or the like may be formed.

The above-described pre-treatment step or the step of forming the primer layer and the step of forming the waterproof coating layer may be selectively performed as needed.

Subsequently, in the waterproof construction method of the protective material-integrated self-adhesive waterproof sheet according to an embodiment of the present invention, the first protective material-integrated self-adhesive waterproof sheet (100a) and the second protective material-integrated self-attached waterproof sheet (100b) are prepared first step; is performed.

The first protective material-integrated self-adhesive waterproof sheet 100a and the second protective material-integrated self-adhesive waterproof sheet 100b are the protective material-integrated self-adhesive waterproof sheet 100 according to an embodiment of the present invention described above, overlapping in addition to essential elements. A description will be omitted.

The first protective material-integrated self-adhesive waterproof sheet 100a is a first lower release paper 110a, a first waterproof sheet 120a, a first upper double-sided release paper 130a and a first protective material 140a are sequentially stacked. , The first upper double-sided release paper 130a includes a first upper double-sided release paper 131a and a first other upper double-sided release paper 132a which are provided separately and partially overlap each other in the longitudinal direction.

The area in which the first one-side upper double-sided release paper 131a and the first other upper double-sided release paper 132a overlap is a first overlapping part 133a, and the first one side and the first other upper double-sided release paper 131a and 132a are mutually The abutting surface is a non-adhesive area where no adhesion is made.

In addition, the second protective material-integrated self-adhesive waterproof sheet 100b is a second lower release paper 110b, a second waterproof sheet 120b, a second upper double-sided release paper 130b and a second protective material 140b are sequentially stacked. That is, the second upper double-sided release paper 130b includes a second one-side upper double-sided release paper 131b and a second other upper double-sided release paper 132b which are provided separately and partially overlap each other in the longitudinal direction. .

The area where the second one side upper double-sided release paper 131b and the second other upper double-sided release paper 132b overlap is the second overlapping part 133b, and the second one side and the second other upper double-sided release paper 131b and 132b are mutually The abutting surface is a non-adhesive area where no adhesion is made.

Next, a first step of attaching the first and second protective material-integrated self-adhesive waterproof sheets 100a and 100b to the construction target surface is performed.

Referring to FIG. 3 , this step removes the first and second lower release papers 110a and 110b of the first and second protective material-integrated self-adhesive waterproof sheets 100a and 100b, and in the width direction on the construction target surface. It can be carried out by attaching them side by side. At this time, one end of the first protective material-integrated self-adhesive waterproof sheet 100a and the other end of the second protective material-integrated self-adhesive waterproof sheet 100b overlap to form an overlapping area in the longitudinal direction.

Specifically, the first protective material-integrated self-adhesive waterproof sheet (100a) is attached first, and the lower surface of one end of the second protective material-integrated self-adhesive waterproof sheet (100b) is the upper surface of the other end of the first protective material-integrated self-adhesive waterproof sheet (100a). The second protective material-integrated self-adhesive waterproof sheet (100b) may be attached later to overlap.

In this step, without applying any pressure or force to the second protective material-integrated self-adhesive waterproof sheet 100b of the overlapping area, it is simply placed on the other end of the first protective material-integrated self-adhesive waterproof sheet 100a to form an overlapping area. It is preferable, otherwise, the lower surface of one end of the second protective material-integrated self-attached waterproof sheet (100b) is attached to the other end upper surface of the first protective material-integrated self-attached waterproof sheet (100a) to continue the construction step to be described later. Because it can be difficult.

At this time, the overlapping area is the first other upper double-sided release paper 132a disposed in one direction of the first protective material-integrated self-adhesive waterproof sheet 100a and the second protective material-integrated self-adhesive waterproof sheet 100b disposed in the other direction. 2 It should be formed in the area where the one-side upper double-sided release paper 131b is disposed, and more preferably, it may be formed in the area except for the first and second overlapping portions 133a and 133b.

By forming the overlapping area in this way, each upper double-sided release paper (131a, 131b, 132a, 132b) can be easily removed sequentially according to the construction step during construction, and accordingly, in the area where overlapping and adhesion are made, bubble inflow or sheet distortion such defects can be prevented.

Next, as shown in FIG. 4 , a second step of overlapping and adhering the first and second waterproof sheets 120a and 120b is performed.

Specifically, in this step, a portion of the first other upper double-sided release paper 132a of the first protective material-integrated self-adhesive waterproofing sheet 100a is applied to the first waterproof sheet 120a so that the other end of the first waterproof sheet 120a is exposed to the outside. ), and then attaching one end of the second waterproof sheet 120b of the second protective material-integrated self-adhesive waterproof sheet 100b to the upper surface of the other end of the first waterproof sheet 120a to adjoin the first and second waterproof sheets (120a, 120b) is a step of overlapping and bonding to form an overlap waterproof layer (151).

In this way, since the two waterproof sheets 120a and 120b are overlapped and adhered, the mutual adhesive strength is excellent because the same material is adhered, and problems such as sheet separation in the seam area due to the dissimilar material, deterioration of physical properties, water leakage, etc. can be prevented. .

As described above, the width L1 of the overlapping waterproofing layer 151 formed by overlapping the first and second waterproofing sheets 120a and 120b may be 4-70mm.

When the width (L1) of the waterproof layer is less than 4 mm, the first and second waterproof sheets 120a and 120b may not be stably adhered due to the thickness of the waterproof sheet 120, and a problem that exceeds 70 mm may occur. In this case, it is not possible to obtain an additional leakage prevention effect in the seam area, and the consumption of the protective material-integrated self-adhesive waterproofing sheet 100 increases more than necessary, which is economically disadvantageous.

Next, as shown in FIG. 5 , a third step of adhering the first protective material 140a of the first protective material-integrated self-adhesive waterproof sheet 100a to one end area of the second waterproof sheet 120b is performed.

Specifically, in this step, a portion of the second one side upper double-sided release paper 131b is applied to the second waterproof sheet so that one end of the second waterproof sheet 120b of the second protective material-integrated self-adhesive waterproof sheet 100b is exposed to the outside. 120b), remove the first other upper double-sided release paper 132a of the first protective material-integrated self-adhesive waterproof sheet 100a, and then attach the other end of the first protective material 140a to the upper end of the second waterproof sheet 120b. It can be carried out by attaching it to the surface.

In this step, since the first other upper double-sided release paper 132a is easily separated from the first one-side upper double-sided release paper 131a by the overlapping portion 133, which is a non-adhesive area, the first one-side upper double-sided release paper 131a is Only the first one-side upper double-sided release paper 131a may be removed while the adhesive state with the first protective material 140a and the first waterproof sheet 120a is maintained.

In addition, in this step, the separation of the second upper double-sided release paper 131b and the removal of the first other upper double-sided release paper 132a may be performed sequentially or in the reverse order, or may be performed simultaneously.

Next, as shown in FIG. 6 , a fourth step of overlapping and adhering the first protective material 140a and the second protective material 140b is performed, and this step is specifically, the second protective material integrated self-adhesive waterproof sheet 100b ), after removing the upper double-sided release paper 131b on one side, attaching one end of the second protective material 140b to the upper surface of the other end of the first protective material 140a to form an overlapping protective layer 152 .

In this step, since the second one-side upper double-sided release paper 131b is easily separated from the second other-side upper double-sided release paper 132b by the overlapping portion 133, which is a non-adhesive area, the second other upper double-sided release paper 132b Only the second one-side upper double-sided release paper 131b may be removed alone while the adhesive state with the sheet layer is maintained.

Since the overlapping protective layer 152 in which the two protective materials 140a and 140b are overlapped is formed on the overlapping waterproofing layer 151 in the overlapping region through this step, the first and second protective material-integrated self-adhesive waterproof sheets 100a, 100b) The protective function of the waterproof sheet 120 is strengthened in the overlapping area of , and it is possible to obtain an effect of improving physical properties in the seam area and an additional waterproofing performance improvement effect.

At this time, the width L1 of the waterproof layer 151 may be formed smaller than the width L2 of the layer protection layer 152, and thus the overlapping protective layer 152 may reduce the minute curves formed by the waterproof layer 151. ) can be covered to more effectively prevent damage to the waterproof sheet 120 due to micro-bending.

Through these steps, the waterproof construction of the form as shown in FIG. 6 is made, and the first protective material-integrated self-adhesive waterproofing sheet 100a and the other surface of the second protective material-integrated self-adhesive waterproofing sheet 100b are also waterproofed. When the construction is continuously performed, a protective material-integrated waterproofing layer of the form shown in FIG. 7 may be formed.

The waterproof construction method using the protective material-integrated self-adhesive waterproofing sheet of the present invention as described above has excellent workability and work safety, and can form a waterproof layer and a protective layer at the same time in one construction, so that the construction can be done quickly and the subsequent process can be performed immediately. There are advantages that can be

In addition, the overlapping portion of the waterproof layer is formed to overlap the overlapping portion of the protective layer, thereby minimizing defects in the joint portion such as water leakage in the overlapping portion.

The present invention is not limited to the specific embodiments and descriptions described above, and without departing from the gist of the present invention claimed in the claims, anyone with ordinary skill in the art to which the invention pertains can implement various modifications and such modifications shall fall within the protection scope of the present invention.

100: protective material integrated self-adhesive waterproof sheet 110: lower release paper
120: waterproof sheet 121: center material
122, 123: waterproof compound layer 130: upper double-sided release paper
131: one side upper double-sided release paper 132: the other upper double-sided release paper
133: overlap 140: protective material
141: adhesive layer 151: overlap waterproof layer
152: Overlapping protective layer

Claims (9)

lower release paper 110;
a waterproof sheet 120 laminated on the lower release paper 110;
The upper double-sided release paper 130 laminated on the waterproof sheet 120, and
Including a; protective material 140 laminated on the upper double-sided release paper 130
The upper double-sided release paper 130 includes one upper double-sided release paper 131 and the other upper double-sided release paper 132 that are provided separately, respectively,
In the longitudinal direction of the waterproof sheet 120, a portion of the other side of the upper side double-sided release paper 131 and a part of one side of the other side upper double-sided release paper 132 are positioned to overlap each other to form an overlapping part 133, characterized in that A self-adhesive waterproofing sheet with integrated protective material. The method of claim 1
The width of the upper double-sided release paper 130 and the protective material 140 is formed to be larger than the width of the waterproof sheet 120, the protective material integrated self-adhesive waterproof sheet. According to claim 1,
The waterproof sheet 120 is a protective material-integrated self-adhesive waterproof sheet, characterized in that it comprises a central substrate 121 and a waterproof compound layer (122, 123) formed on both sides of the central substrate (121). According to claim 1,
Protective material-integrated self-adhesive waterproof sheet, characterized in that the adhesive layer 141 is formed on the lower surface of the protective material (140). The first lower release paper 110a, the first waterproof sheet 120a, the first upper double-sided release paper 130a and the first protective material 140a are sequentially stacked, and the first upper double-sided release paper 130a is, respectively, separately. A first protective material-integrated self-adhesive waterproof sheet (100a), which is provided and consists of a first upper double-sided release paper (131a) and a first other upper double-sided release paper (132a), which are provided so that some of them overlap each other along the longitudinal direction; and a second lower release paper 110b, a second waterproof sheet 120b, a second upper double-sided release paper 130b and a second protective material 140b are sequentially stacked, and the second upper double-sided release paper 130b is, respectively A second protective material-integrated self-adhesive waterproof sheet (100b), which is separately provided and consists of a second upper double-sided release paper (131b) on one side and a second upper double-sided release paper (132b) formed so that some of them overlap each other along the longitudinal direction; preparing;
Remove the first and second lower release papers (110a, 110b), attach a first protective material-integrated self-adhesive waterproofing sheet (100a) to one side of the construction target surface, and attach a second protective material-integrated self-adhesive waterproofing sheet (100a) to the other side of the construction target surface A first step of attaching the sheet 100b so that one end of the lower surface of the second protective material-integrated self-adhesive waterproof sheet 100b overlaps with the upper surface of the other end of the first protective material-integrated self-adhesive waterproof sheet 100a;
After separating a part of the first other upper double-sided release paper 132a from the first waterproof sheet 120a so that the other end of the first waterproof sheet 120a is exposed to the outside, one end of the second waterproof sheet 120b a second step of attaching the first waterproof sheet (120a) to the upper surface of the other end to form an overlapping waterproof layer (151);
A part of the second one-side upper double-sided release paper 131b is separated from the second waterproof sheet 120b so that one end of the second waterproof sheet 120b is exposed to the outside, and the first protective material integrated self-adhesive waterproof sheet 100a from the a third step of attaching the other end of the first protective material 140a to the upper surface of one end of the second waterproof sheet 120b after removing the first other upper double-sided release paper 132a;
After removing the second one-side upper double-sided release paper 131b from the second protective material-integrated self-adhesive waterproofing sheet 100b, one end of the second protective material 140b is attached to the upper surface of the other end of the first protective material 140a to protect the overlap. A fourth step of forming a layer (152); waterproof construction method using a protective material-integrated self-adhesive waterproofing sheet, comprising: a. 6. The method of claim 5,
The waterproof construction method using a protective material-integrated self-adhesive waterproofing sheet, characterized in that the width of the overlap waterproofing layer 151 is 4-70mm. 6. The method of claim 5,
The waterproof construction method using a protective material-integrated self-adhesive waterproofing sheet, characterized in that the width of the overlap waterproof layer 151 is formed to be smaller than or equal to the width of the overlap protection layer 152 . 6. The method of claim 5,
Before the first step, the step of forming a primer layer by applying a primer to the construction target surface is additionally performed. Before the first step, the waterproof construction method using a protective material-integrated self-adhesive waterproofing sheet, characterized in that the step of forming a waterproof coating film layer by applying the waterproof coating film composition to the construction target surface is further performed.

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