KR102396703B1 - Sheet for prevention of water and root, construction method thereof - Google Patents

Abstract

A composite sheet for preventing water and roots according to an aspect of the present invention includes: a synthetic polymer layer; a reinforcing layer located on one side of the synthetic polymer layer; a fiber layer positioned on the reinforcing layer; and an adhesive layer located on the fiber layer and including an adhesive and adhesive material. The synthetic polymer layer includes a recycled polymer, a modifier, and an additive. The recycled polymer is included in the range of 30 parts by weight to 50 parts by weight compared to 100 parts by weight of the composite sheet for preventing water and roots.

Description

Composite sheet for waterproofing and its construction method {SHEET FOR PREVENTION OF WATER AND ROOT, CONSTRUCTION METHOD THEREOF}

The present invention relates to a waterproofing and rustproofing composite sheet and a construction method using the same, and more particularly, to a waterproofing and rustproofing composite sheet capable of implementing waterproofing and rustproofing properties in an integrated structure by improving the structure, and to a construction method thereof will be.

Recently, an artificial ground greening system that forms a waterproofing layer on various structures and creates green areas has been widely applied. For example, green space may be formed on the roof of a building, an outer wall of an underground structure, or an upper slab. However, if moisture or plant roots penetrates after the artificial ground greening system is installed, the durability of the structure may be greatly reduced. Accordingly, in the case of applying the artificial ground greening system, a process for improving waterproof and rust-proof properties is performed.

For example, in the prior art, a method of installing a waterproofing layer having a waterproofing property and separately constructing a rustproofing material having a rustproofing property was applied. According to this construction method, it was difficult to secure uniform construction quality because the entire construction process was very complicated and the construction quality could vary depending on the skill level of the field workers.

Accordingly, it is possible to solve the problem of inefficiency caused by the double construction process of additionally constructing a waterproofing layer and a rustproofing layer by having both waterproof and rustproof properties, and the demand for a construction method that does not require mixing and using wet materials on site is increasing

Republic of Korea Patent Publication No. 10-2012-0138496 (2012.12.26)

The present invention is to provide a waterproofing and rustproofing composite sheet capable of simultaneously implementing waterproofing and rustproofing properties with one construction, and having a dry structure that does not use wet materials to simplify construction and minimize costs, and a construction method thereof do.

On the other hand, the technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned are clearly to those of ordinary skill in the art to which the present invention belongs from the description below. can be understood

Composite sheet for waterproofing according to one aspect of the present invention is a synthetic polymer layer; a reinforcing layer positioned on one surface of the synthetic polymer layer; a fibrous layer positioned on the reinforcing layer; and an adhesive layer positioned on the fiber layer and comprising an adhesive and an adhesive material, wherein the synthetic polymer layer includes a recycled polymer, a modifier, and an additive, and the recycled polymer is 30 parts by weight compared to 100 parts by weight of the waterproof and anti-corrosive composite sheet. It may be included in the range of 50 parts by weight.

In addition, the recycled polymer may include recycled polypropylene (PP), recycled polyethylene (PE), and a modifier (PP-based TPO).

In addition, the reinforcing layer may be formed of a polyester-based (PET) straight yarn and may have a mesh shape having interstitial spaces.

In addition, the fiber layer may include a nonwoven fabric including a polyester-based (PET) material.

In addition, the reinforcing layer and the fiber layer may include a reinforcing fiber nonwoven fabric treated with lamination and bonding.

In addition, the adhesive layer may include at least one of butyl rubber-based adhesive, rubberized asphalt, rubberized asphalt having magnetic adhesion, ethylene vinyl acetate-based hot-melt, rubber-based hot-melt, and polyurethane-based hot-melt. .

In addition, it may further include a release layer positioned on the adhesive layer.

The construction method of the composite sheet for waterproofing according to an aspect of the present invention includes: a surface cleaning process of arranging the surface; a primer application process of applying a primer to the base surface; a synthetic polymer layer on the primer; a reinforcing layer positioned on one surface of the synthetic polymer layer; a fibrous layer positioned on the reinforcing layer; and a bonding step of overlapping the waterproof and anti-corrosion composite sheet positioned on the fiber layer and including an adhesive layer including an adhesive and an adhesive material to have a joint portion and bonding the joint portion of the waterproof and anti-corrosion composite sheet; The synthetic polymer layer includes a recycled polymer and additives, and the recycled polymer may be included in an amount of 30 to 50 parts by weight based on 100 parts by weight of the waterproof and anti-corrosive composite sheet.

In addition, in the bonding step of bonding the bonding portion of the waterproof and anti-corrosive composite sheet, the bonding portion may be formed by an overlapping method having a width of 30 to 50 mm or a double overlapping method having a width of 50 to 90 mm.

In addition, the bonding portion has a butt structure, and in the bonding step, it may be bonded in a state in which a backing sheet having a width of 40 to 200 mm is overlaid on the butt structure.

In addition, the bonding step may be performed as a welding process in which the welding is performed by indirect hot air.

According to the composite sheet for waterproofing and rustproofing according to the present invention and a construction method thereof, waterproofing properties and rustproofing properties can be implemented at the same time, and it has a dry structure that does not use wet materials, thereby simplifying construction and minimizing costs.

In addition, it is possible to reduce the time for waterproofing work, it is possible to reduce the construction period for installing the composite sheet for waterproofing and rooting.

On the other hand, the effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the following description. will be able

1 is a perspective view schematically illustrating a composite sheet for waterproofing and rooting according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view of the composite sheet for waterproofing and anti-corrosion shown in FIG. 1. FIG.
Figure 3 is a perspective view schematically showing a construction structure using the composite sheet for waterproofing according to an embodiment of the present invention.
4 and 5 are cross-sectional views schematically illustrating another example of joint processing using a waterproof and anti-corrosive composite sheet according to an embodiment of the present invention.
6 is a cross-sectional view schematically illustrating another example of a joint treatment using a waterproof and anti-corrosive composite sheet according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, it goes without saying that the present invention is not limited to these embodiments and may be modified in various forms.

In the drawings, in order to clearly and briefly describe the present invention, the illustration of parts irrelevant to the description is omitted, and the same reference numerals are used for the same or extremely similar parts throughout the specification. In addition, in the drawings, the thickness, width, etc. are enlarged or reduced in order to make the description more clear, and the thickness, width, etc. of the present invention are not limited to the bars shown in the drawings.

And, when a certain part "includes" another part throughout the specification, other parts are not excluded unless otherwise stated, and other parts may be further included. Also, when a part such as a layer, film, region, plate, etc. is said to be “on” another part, it includes not only the case where the other part is “directly on” but also the case where another part is located in the middle. When a part, such as a layer, film, region, or plate, is "directly above" another part, it means that no other part is located in the middle.

Hereinafter, with reference to the accompanying drawings, a composite sheet for waterproofing and anti-corrosion according to an embodiment of the present invention and a construction method thereof will be described in detail.

1 is a perspective view schematically illustrating a waterproofing and anti-corrosion composite sheet according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view of the waterproofing and anti-corrosion composite sheet shown in FIG. 1 .

Referring to FIG. 1 , the composite sheet 100 for waterproofing and anti-corrosion according to this embodiment is a synthetic polymer layer 10 including a recycled polymer as a base material, and a reinforcing layer 20 positioned on one surface of the synthetic polymer layer 10 . , a fibrous layer 30 positioned on the reinforcing layer 20 , and an adhesive layer 40 positioned on the fibrous layer 30 and including an adhesive or adhesive material. This will be described in more detail.

The synthetic polymer layer 10 may include a recycled polymer as a base material to have excellent waterproof and rust-proof properties, and may be easily processed into a desired shape while having excellent durability and long-term reliability. Here, the base material may mean a material included in the largest amount in the synthetic polymer layer 10 or a material exceeding 50 parts by weight based on 100 parts by weight of the total. The synthetic polymer layer 10 has excellent waterproof and rust-proof properties, and can serve as a waterproof layer and a rust-proof layer. As such, in this embodiment, the structure can be simplified by configuring the waterproof layer and the anti-corrosion layer as a single layer of the synthetic polymer layer 10 made of one material.

Meanwhile, the recycled polymer may include recycled polypropylene (PP) and recycled polyethylene (PE).

First, recycled polypropylene (PP) and recycled polyethylene (PE) may be extruded by adding additives to a crushed product that has undergone a separation, washing and drying process by pulverizing polymer synthetic resins such as various waste plastics.

On the other hand, the recycled polymer may be included in the range of 30 parts by weight to 50 parts by weight based on 100 parts by weight of the waterproof and anti-corrosive composite sheet. Meanwhile, the recycled polymer may exceed 50 parts by weight based on 100 parts by weight of the synthetic polymer layer 10 , so that the recycled polymer may function as a base material of the synthetic polymer layer 10 .

Here, in a specific example, the weight ratio is as follows [Table 1] and [Table 2].

Synthetic polymer layer (100 weight ratio) Recycled PP 24.3926 recycled PE 40.0039 Modifier (PP-based TPO) 14.6356 filler 18.5384 colorant (white) 1.366 colorant (black) 0.4879 antioxidant 0.1366 Dispersant 1 0.2927 dispersant 2 0.1464 Sum 100

Waterproof sheet (100 weight ratio) Recycled PP 12.058 recycled PE 19.775 Modifier (PP-based TPO) 7.235 filler 9.164 colorant (white) 0.675 colorant (black) 0.241 Antioxidant 1 0.034 Antioxidant 2 0.034 Dispersant 1 0.145 dispersant 2 0.072 reinforcing layer 2.887 fiber layer 0.666 adhesive layer 45.755 release layer 1.259 Sum 100

That is, recycled polyethylene (PE) and polypropylene (PP) are extruded by adding additives to the crushed product that has been separated, washed and dried by pulverizing polymer synthetic resins such as various waste plastics, and is melted by heat by the resin component. It has fluidity and serves to provide processability so that it can be easily molded to have a desired shape by various plastic processing equipment.

In particular, since recycled polyethylene (PE) and polypropylene (PP) can be molded with sufficient fluidity during molding compared to general rubber, the design of complex parts is free compared to general rubber, and the shrinkage after molding is less than that of general plastics. Since it is at a level similar to that of

In addition, recycled polyethylene (PE) and polypropylene (PP) have excellent strength and hardness, and serve to reinforce the strength of the synthetic polymer layer 10 .

On the other hand, the synthetic polymer layer 10 is a semi-crystalline copolymer having an amorphous content as a modifier for smooth production of calender or extrusion sheet molding of recycled polyethylene (PE) and polypropylene (PP) and securing excellent flexibility and impact performance. Phosphorus Isotactic Propylene-based elastomer (TPO) may be further added.

Here, the polyolefin-based thermoplastic elastomer serving as an additive may be added in less than half compared to recycled polyethylene (PE) and polypropylene (PP), and may function as a modifier.

In addition, the synthetic polymer layer 10 may further include various other additives such as extenders, antioxidants, and dispersants. In this case, the amount of recycled polyethylene (PE), which is the base material, may be greater than each amount of polypropylene, an extender, an antioxidant, a dispersant, and the like, and a combined amount thereof. Various other known additives, such as bulking agents, antioxidants, dispersants, and the like, may be used.

The synthetic polymer layer 10 may be formed by mixing a recycled polymer and various other additives and extruding it to a uniform thickness. The construction method of the synthetic polymer layer 10 will be described in more detail later.

The reinforcing layer 20 and the fiber layer 30 may be sequentially formed on the synthetic polymer layer 10 (the lower part in the drawing). The reinforcing layer 20 and the fiber layer 30 may serve to improve strength and waterproof properties while stably fixing them between the synthetic polymer layer 10 and the adhesive layer 40 .

More specifically, the reinforcing layer 20 may serve to improve the smoothness and strength of the waterproof and anti-corrosive composite sheet 100 and prevent thermal deformation, and may have the form of, for example, a reinforcing cloth. The reinforcing layer 20 may have a plain weave mesh shape that intersects each other (eg, orthogonal) to have a space (opening) between the lattices therein. For example, the reinforcing layer 20 may be composed of polyester-based (PET) straight wool yarn. Accordingly, the construction cost of the reinforcing layer 20 can be reduced, and the fibrous layer 30 is in close contact with the synthetic polymer layer 10 through the space between the lattices of the reinforcing layer 20 so that fixing stability can be further improved. However, the present invention is not limited thereto.

In this embodiment, the fiber layer 30 may serve to firmly fix the adhesive layer 40 to the synthetic polymer layer 10 .

For example, the fiber layer 30 may have a layered shape including a nonwoven fabric including a polyester-based material and having a predetermined area. When the fiber layer 30 includes a polyester-based material, it is easy to penetrate the surface of the adhesive or adhesive material, and has excellent compatibility with the adhesive or adhesive material, which is an organic compound. It can effectively perform the role of stably fixing to However, the present invention is not limited thereto, and various modifications are possible in the material, unit weight, shape, etc. of the fiber layer 30 . For example, the reinforcing layer 20 and the fiber layer 30 may include a reinforcing fiber nonwoven fabric that has been laminated and bonded.

When the adhesive layer 40 is formed by applying an adhesive or an adhesive material directly on the synthetic polymer layer 10 (the lower part of the synthetic polymer layer 10 in the drawing), after the waterproof and anti-corrosion composite sheet 100 is adhered to the structure Peeling easily occurs at the interface between the synthetic polymer layer 10 and the adhesive layer 40 . In order to prevent this, the above-described peeling phenomenon can be effectively prevented by applying a needle punching treatment, a heat compression treatment, or a nonwoven fabric treated with an adhesive material.

The adhesive layer 40 positioned above the fiber layer 30 (the lower part in the drawing) serves as an adhesive layer or an adhesive layer for attaching the waterproof and anti-corrosive composite sheet 100 to the structure. In this embodiment, the adhesive layer 40 may be uniformly processed over the entire surface or extended to have a zigzag shape while having a constant area and a circular cross-section, or may be configured as a layered planar shape having a constant area.

In this embodiment, the adhesive layer 40 includes at least one of improved asphalt, rubberized asphalt having adhesiveness, rubberized asphalt having magnetic adhesion, ethylene vinyl acetate-based hot-melt, rubber-based hot-melt, and polyurethane-based hot-melt. Thus, it is possible to form various materials and material layers having point/adhesive properties with the surface of the structure.

At this time, as shown in FIGS. 4 to 6 , in the waterproof and anti-corrosive composite sheet 100 according to the present embodiment, the reinforcing layer 20, the fiber layer 30 and /or the non-formed area NA not including the adhesive layer 40 may be provided. This is because the synthetic polymer layer 10 can be more easily bonded by heat in the absence of the reinforcing layer 20 and the fiber layer 30 . For example, the area where the reinforcement layer 20, the fiber layer 30, and the adhesive layer 40 are not formed at one edge of the composite sheet 100 for waterproofing and anti-corrosion has a width of 20 to 40 mm and can have a long continuous shape. there is. However, the present invention is not limited thereto, and as shown in FIG. 7 , the reinforcing layer 20 , the fiber layer 30 , and the adhesive layer 40 may be positioned on the entire surface. Various other modifications are possible.

The release layer 50 positioned on the adhesive layer 40 (the lower part in the drawing) may be made of various materials having a release property.

In this embodiment, the thickness of the synthetic polymer layer 10 may be greater than the thickness of each of the other layers (ie, the reinforcing layer 20 , the fiber layer 30 , the adhesive layer 40 , and the release layer 50 ). This is because the synthetic polymer layer 10 is a layer that improves the waterproof and rust-proof properties, so that the waterproof and rust-proof properties are sufficiently implemented. In addition, the thickness or diameter of the adhesive layer 40 may be greater than the thickness of each of the layers other than the synthetic polymer layer 10 (ie, the reinforcing layer 20 , the fiber layer 30 , and the release layer 50 ). Accordingly, the adhesive effect by the adhesive layer 40 can be maximized. However, the present invention is not limited thereto, and the thickness of the plurality of layers constituting the waterproof and anti-corrosive composite sheet 100 may be variously changed.

The composite sheet 100 for waterproofing and rustproofing according to the present invention can simultaneously implement waterproofing properties and rustproofing properties, and has a dry structure that does not use wet materials to simplify construction and minimize costs.

Hereinafter, the construction method of the above-described waterproof and anti-corrosion composite sheet 100 will be described in detail.

First, a laminated sheet including a synthetic polymer layer 10 , a reinforcing layer 20 and a fiber layer 30 formed on one surface thereof is formed. In this case, the synthetic polymer layer 10 may be formed by mixing the above-described recycled polymer with other additives and extruding to a uniform thickness.

More specifically, the above-mentioned recycled polymer, antioxidant, dispersant, etc. in the form of pellets are put into the extruder and heated, and the synthetic polymer in gel form is extruded to a certain thickness through T-DIE to form a synthetic polymer material layer ( Alternatively, the synthetic polymer layer 10) is formed. The synthetic polymer layer 10, the reinforcing layer 20 and the fiber layer 30 are laminated by laminating the synthetic polymer layer 10, the reinforcing layer 20 and the fiber layer 30 by putting the reinforcing layer 20 and the fiber layer 30 together on one side while putting the synthetic polymer material layer into the forming roller (molding machine). form a sheet This laminated sheet is cooled to a constant temperature through a cooler.

Then, an adhesive or an adhesive material is applied on the fiber layer 30 of the laminated sheet to form an adhesive layer 40 , and the release layer 50 is matched thereon and wound and packaged.

During the installation process of the waterproof and anti-corrosive composite sheet 100 , the adhesive layer 40 may be installed to face the base surface of the structure 200 in a state in which the release layer 50 is removed.

In this case, various construction methods may be applied according to the construction location and construction purpose. For example, when applied to an artificial ground greening system such as the roof of a building, a ground surface cleaning process for arranging the base surface of the structure 200 , a primer application process for applying the primer 210 , and a composite sheet for waterproofing and rooting An installation process of installing 100, a fusion process of fusion of the joint of the waterproof and anti-corrosion composite sheet 100 with indirect hot air, a process of installing a boundary material and laying the soil to form a planting base layer, a process of planting etc. can be performed. And, when applied to a site that requires waterproofing of the structure, a base surface cleaning process for arranging the base surface 210 of the structure 200, a primer application process for applying the primer 210, and a composite sheet for waterproofing and rooting An installation process of installing 100, a fusion process of fusion of the joint of the waterproof and anti-corrosion composite sheet 100 with indirect hot air, a protective layer installation and pressing concrete pouring process may be performed.

At this time, in the fusion process, the junctions of the two adjacent waterproof and anti-corrosion composite sheets 100 may be fused to have various laminate structures.

As an example, the bonding portions of the two adjacent waterproof and anti-corrosion composite sheets 100 may be overlapped and bonded to each other. During the overlapping treatment, the joint may have a width of 30 to 50 mm. In this case, the joint of the other waterproof and anti-corrosion composite sheet 100 is overlapped on the joint of one waterproof and anti-corrosion composite sheet 100, and in this state, when fusion treatment is performed using hot air fusion equipment, the adjacent two waterproof and anti-corrosion The joint portions of the composite sheet 100 are fused to each other.

In this case, the adhesive layer 40 may not be provided at the joint of the two adjacent waterproof and anti-corrosion composite sheets 100 that are fused to each other by the joint.

In addition, as shown in FIG. 4 , the bonding portions of the two adjacent waterproof and anti-corrosion composite sheets 100 may be bonded to each other by double-overlapping treatment. In the case of double overlapping, the joint may have a width of 50 to 90 mm. In this case, when the adhesive layer 40 is positioned on a part of the joint of the two adjacent waterproof and anti-corrosive composite sheets 100 overlapping each other and then fused to the joint using a hot air fusion device, the adhesive layer ( 40) is melted and adhered. In this case, the width of the portion where the adhesive layer 40 is located may be smaller than the width of the portion where the adhesive layer 40 is not located in the entire width of the bonding portion. In FIG. 5 , it was shown that the width of the portion where the adhesive layer 40 is located is 20 to 40 mm, and the width of the portion where the adhesive layer 40 is not located is formed to be 30 to 50 mm in the overall width of the joint. Accordingly, the adhesive properties can be improved by the adhesive layer 40 positioned between the two adjacent waterproof and anti-corrosion composite sheets 100 without widening the width of the joint too much.

As another example, the bonding portion of the two adjacent waterproof and anti-corrosion composite sheets 100 may be bonded to each other by reinforcing double overlapping treatment. In this way, the adhesive layer 40 in the waterproof and anti-corrosion composite sheet 100 to protrude toward one end of the synthetic polymer layer 10 in order to perform the reinforcing double overlapping treatment, and not to be formed at the other end.

By forming the composite sheet 100 for waterproofing and anti-corruption in this way, when the composite sheet 100 for waterproofing and anti-corrosion on one side is overlapped with the composite sheet for waterproofing and anti-corrosion on one side, the adhesive layer 40 and the other adhesive layer 40 overlap each other. In addition to the primary waterproofing performance and rustproofing performance by fusion of the joint, it is possible to secure more enhanced waterproofing performance due to the overlapping chips of the adhesive layer 40 .

As another example, as shown in FIG. 6 , the bonding portions of two adjacent waterproof and anti-corrosion composite sheets 100 may be bonded to each other by butt processing. In this case, in a state where the ends of two adjacent waterproof and anti-corrosion composite sheets 100 are in contact with each other, a synthetic polymer tape (backing sheet) of the same material on a portion of two adjacent waterproof and anti-corrosion composite sheets 100 is 110 ) is covered and treated, and when the fusion treatment is performed using hot air fusion equipment at the junction, two adjacent waterproof and anti-corrosion composite sheets 100 are fused to each other. For example, the synthetic polymer tape 110 may have a width of 40 to 200 mm (eg, 60 to 150 nm). The synthetic polymer tape 110 can be overlapped with two adjacent composite sheets 100 for waterproofing and anti-corrosion, respectively, with substantially the same width, and after the fusion process, it is integrated with the synthetic polymer layer 10 and divided into separate layers. it may not be In this abutment treatment, since the lower surface of the waterproof and anti-corrosive composite sheet 100 is not used for fusion of the adjacent waterproof and anti-corrosive composite sheet 100, the reinforcing layer 20, the fiber layer 30, etc. are partially removed from the unformed area (reference sign) NA) may not be separately provided. That is, the reinforcing layer 20 , the fiber layer 30 , the adhesive layer 40 , etc. may be formed in the entire area under the synthetic polymer layer 10 .

Although the above-described embodiment exemplifies the welding using hot air bonding, the present invention is not limited thereto. For example, an adhesive/adhesive material is applied locally or entirely between the junctions of two adjacent waterproof and anti-corrosive composite sheets 100, and the joint parts of two adjacent waterproof and anti-corrosive composite sheets 100 are applied using this. It can also be joined. Various other modifications are possible.

Hereinafter, the present invention will be described in more detail by way of construction examples of the present invention. However, the following construction examples are merely presented to illustrate the present invention, and the present invention is not limited thereto.

Preparation of Laminated Sheets Containing Synthetic Polymer Layers

Recycled polymers (PE, PP) in pellet form, modifiers (PP-based TPO), processability improvers (dispersants, etc.) and functional additives (M/B, colorants, extenders, antioxidants, etc.) are put into the extruder, heated, and T-die A synthetic polymer layer was formed by extruding a synthetic polymer in gel form with a constant width and thickness through (T-DIE).

While the synthetic polymer layer extruded to a certain thickness is put into a molding roller (molding machine), a reinforcing layer and a fiber layer (18 to 120 g/m ² ) are put together on one side to form a laminated sheet by lamination treatment. This laminated sheet is cooled to a constant temperature through a cooler. Thereby, a laminated sheet having a width of 1,040 mm and a thickness of 1.2 mm was formed.

Adhesive layer formation and packaging

On the fiber layer of the laminated sheet, uniformly process the butyl-based adhesive material on the entire side (butyl width 1000mm) or on one side with a 30~40mm protruding structure (butyl width 1030mm), then laminate the single-sided silicone-treated release film and move it to the winder. then cut and packaged.

Table 3 below shows the results of physical property evaluation of the composite sheet for anti-corrosion waterproofing with a width of 1070 mm and a thickness of 2.0 to 2.1 mm manufactured according to the construction example of the present invention.

Evaluation items Quality standards Evaluation results
(minimum value) Applicable standard recycling rate 30% or more 31.8 See Table 2 thickness [mm] 2.0 +15%, -10% 2.1 Tensile strength [N/mm] 24 or more 49 KS F 4911-Reinforced Composite Type elongation [%] 15 or more 27 KS F 4911-Reinforced Composite Type Tear strength [N] 50 or more 132 KS F 4911-Reinforced Composite Type Joint tensile performance [N/mm] No treatment 24 or more 38 KS F 4911-Reinforced Composite Type anti-corrosive performance no more than 24 months clear Ks F 4938

Referring to Table 3, it was confirmed that the quality requirements (tensile strength, elongation rate, tear strength, joint tensile performance) of KS F 4911 were sufficiently satisfied as a result of the physical property evaluation of the composite sheet for waterproofing according to the construction example of the present invention. became

The features, structures, effects, etc. as described above are included in at least one embodiment of the present invention, and are not necessarily limited to only one embodiment. Furthermore, the features, structures, effects, etc. illustrated in each embodiment can be combined or modified for other embodiments by those of ordinary skill in the art to which the embodiments belong. Accordingly, the contents related to such combinations and modifications should be interpreted as being included in the scope of the present invention.

10: synthetic polymer layer
20: reinforcing layer
30: non-woven fabric
40: adhesive layer
50: release layer

Claims (11)

synthetic polymer layer;
a reinforcing layer positioned on one surface of the synthetic polymer layer;
a fiber layer positioned on the reinforcing layer;
an adhesive layer positioned on the fiber layer and comprising an adhesive and an adhesive material; and
Including; a release layer located on the adhesive layer;
The synthetic polymer layer includes a recycled polymer, a modifier, and an additive,
The recycled polymer is recycled polypropylene (PP) and recycled polyethylene (PE), which are extruded by adding additives to the crushed product that has been separated, washed and dried by pulverizing the polymer synthetic resin of various waste plastics, and is a composite sheet for waterproofing and anti-vibration 100 It is included in the range of 30 parts by weight to 50 parts by weight relative to parts by weight,
The modifier is an Isotactic Propylene-based elastomer (TPO), which is a semi-crystalline copolymer having an amorphous content, and is included in less than half the content of the recycled polyethylene (PE) and polypropylene (PP),
The content of the recycled polyethylene (PE) is greater than the sum of the content of the recycled polypropylene (PP) and the additive,
The reinforcing layer is composed of polyester-based (PET) straight yarn and has a mesh shape with interstitial spaces,
The fiber layer is provided with a nonwoven fabric comprising a polyester (PET)-based material,
The reinforcing layer and the fiber layer are provided with a reinforcing fiber nonwoven fabric treated with lamination and bonding,
The adhesive layer is a butyl rubber-based, rubberized asphalt, adhesive rubberized asphalt, ethylene-vinyl acetate-based hot-melt, rubber-based hot-melt, and polyurethane-based hot-melt. Sheet.
delete delete delete delete delete delete a surface cleaning process of arranging the surface;
a primer application process of applying a primer to the base surface;
a synthetic polymer layer on the primer; a reinforcing layer positioned on one surface of the synthetic polymer layer; a fibrous layer positioned on the reinforcing layer; and installing a waterproof and anti-corrosion composite sheet positioned on the fiber layer and including an adhesive layer including an adhesive and an adhesive material to have a joint portion; and
A bonding step of bonding the bonding portion of the waterproof and anti-corrosion composite sheet; including,
The synthetic polymer layer contains a recycled polymer, a modifier, and an additive,
The recycled polymer is recycled polypropylene (PP) and recycled polyethylene (PE), which are extruded by adding additives to the crushed product that has been separated, washed and dried by pulverizing the polymer synthetic resin of various waste plastics. It is included in the range of 30 parts by weight to 50 parts by weight based on 100 parts by weight of the composite sheet for near use,
The modifier is an Isotactic Propylene-based elastomer (TPO), which is a semi-crystalline copolymer having an amorphous content, and is included in less than half the content of the recycled polyethylene (PE) and polypropylene (PP),
The content of the recycled polyethylene (PE) is greater than the sum of the content of the recycled polypropylene (PP) and the additive,
In the bonding step of bonding the bonding portion of the waterproof and anti-corrosive composite sheet, the bonding portion is formed by an overlapping method having a width of 30 to 50 mm or a double overlapping method having a width of 50 to 90 mm,
The joint has a butt structure, and in the joining step, a backing sheet having a width of 40 to 200 mm is applied on the butt structure,
The bonding step is a construction method using a waterproofing and anti-corrosion composite sheet performed by a fusion process of fusion with indirect hot air. delete delete delete

Images