KR102356980B1 - Non-exposure type waterproofing method using polypropylene hollow panel formed by rubber asphalt coating material and perforation - Google Patents

Abstract

The present invention relates to a non-exposure-type waterproofing method using a rubber asphalt coating material and a perforated polypropylene hollow panel. The method includes: a first application step of forming a primer layer by applying a primer to the surface of a concrete slab; a second application step of forming a coating material layer by applying a rubber asphalt coating material to an upper part of the primer layer having passed through the first application step; and an installation step of installing a hollow polypropylene panel in an upper part of the coating material layer having passed through the second application step, wherein the hollow polypropylene panel has a plurality of perforations formed on one side. Therefore, the rubber asphalt coating material formed in lower parts of components installed for waterproofing is inserted into the hollow polypropylene panel having the perforations to be prevented from being separated therefrom, which can lead to improved durability.

Description

Non-exposure type waterproofing method using polypropylene hollow panel formed by rubber asphalt coating material and perforation}

The present invention relates to a non-exposed waterproofing method using a rubber asphalt coating material and a polypropylene hollow panel having perforations, and more particularly, to a polypropylene in which a rubber asphalt coating film formed under components installed for waterproofing is perforated. It relates to a non-exposed waterproofing method using a polypropylene hollow panel having a perforated polypropylene hollow panel and a rubber asphalt coating material that can improve durability by infiltrating into the hollow panel and preventing it from falling off.

In general, since a concrete structure is a structure that absorbs moisture, when it is submerged for a long time or exposed to moisture, moisture remains inside the concrete.

Moisture remaining inside the concrete expands when the external temperature drops and freezes, causing cracks in the concrete.

In addition, as cracks occur, the reinforcing bars embedded in the concrete are exposed to the atmosphere and corroded.

That is, waterproofing treatment of concrete structures is an important part of preventing corrosion of reinforcing bars and securing the safety of structures.

For waterproofing, a coating waterproofing method by applying a coating waterproofing agent, a sheet waterproofing method by installing a waterproofing sheet, and a composite waterproofing method by a combination thereof are used.

In the sheet waterproofing method or composite waterproofing method, there are a non-exposed method in which the waterproof sheet is exposed (without concrete finish) and a non-exposed method in which the waterproof sheet is not exposed (with a concrete finish).

On the other hand, since there is a limit to the size of the waterproof sheet, it is necessary to connect and construct several waterproof sheets, but the problem that the waterproof performance is deteriorated due to the occurrence of a defect in the connection part where the sheet and the sheet are connected has been continuously raised.

In particular, in the case of the non-exposed method, since the upper surface of the waterproofing sheet connection part must maintain a plane at the same height as other parts, it was urgent to devise a structure for the stable waterproofing of the connection part under these restrictions.

As related prior art, Patent Publication No. 10-2021-0017202 (Title of the invention: non-exposed composite waterproofing method, publication date: February 17, 2021) and Registered Patent Publication No. 10-0444907 (Title of the invention: There is a composite waterproofing structure and waterproofing method using a waterproofing sheet, registration date: August 09, 2004).

The present invention was created to solve the problems of the prior art as described above, and the rubber asphalt coating material formed under the components installed for waterproofing penetrates into the interior of the perforated polypropylene hollow panel and does not fall off. The purpose of this is a non-exposed waterproofing method using a rubber asphalt coating material that can improve durability and a polypropylene hollow panel with perforations.

Other objects of the present invention can be understood through the characteristics of the present invention, can be seen more clearly through the embodiments of the present invention, and can be realized by means and combinations indicated in the claims.

In order to achieve the problems to be solved by the present invention as described above, the present invention has the following technical features.

A non-exposed waterproofing method using a rubber asphalt coating material and a polypropylene hollow panel having a perforation according to the present invention comprises: a first application step of applying a primer to the surface of a concrete slab to form a primer layer; a second coating step of forming a coating layer by applying a rubber asphalt coating on the primer layer that has been subjected to the first coating step; And a hollow polypropylene panel is provided on the upper portion of the coating film material layer that has undergone the second application step, a plurality of perforations are formed on one surface of the polypropylene hollow panel to provide the coating film material layer; is made including

In the non-exposed waterproofing method using the rubber asphalt coating material and the perforated polypropylene hollow panel according to the present invention, the rubber asphalt coating material is 40 to 50% by weight of asphalt, 15 to 18% by weight of heavy carbon in calcium carbonate, and calcium carbonate 12 to 15% by weight of hard coal, 8 to 12% by weight of polybutene resin, 8 to 10% by weight of thermoplastic resin, 2 to 3% by weight of cellulose fiber resin, 5 to 8% by weight of toluene or xylene resin.

In the non-exposed waterproofing method using the rubber asphalt coating material and the perforated polypropylene hollow panel according to the present invention, the thermoplastic resin is styrene butadiene styrene (SBS), styrene ethylene butylene styrene (SEBS), chloroprene (CR) is made of

In the non-exposed waterproofing method using the rubber asphalt coating material and the perforated polypropylene hollow panel according to the present invention, the rubber asphalt coating material comprises 40 to 50% by weight of asphalt and 8 to 10% by weight of a thermoplastic resin at 170 to 180° C. After dissolving in the bed for 1 hour, cooling to 120° C., adding 8 to 12 wt % of polybudene resin, and stirring for 30 minutes to 1 hour, adding 15 to 18 wt % of heavy carbon in calcium carbonate and light coal in calcium carbonate 12 to 15% by weight is added and stirred for 1 hour, the compound mixture is cooled to 90° C., 5 to 8% by weight of toluene or xylene solvent is added and stirred, and 2 to 3 cellulose fiber resins It is prepared by mixing the weight % and then stirring.

In the non-exposed waterproofing method using the rubber asphalt coating material and the perforated polypropylene hollow panel according to the present invention, the plurality of perforations formed in the polypropylene hollow panel have different diameters at the lower part and upper part, thereby providing a capillary function. By inducing the rubber asphalt coating material to rise through it, it flows into an empty space formed in the polypropylene hollow panel, and through fixing, the rubber asphalt coating material and the polypropylene hollow panel are integrated.

In the non-exposed waterproofing method using the rubber asphalt coating material and the polypropylene hollow panel having perforations according to the present invention, the plurality of perforations formed in the polypropylene hollow panel raise the rubber asphalt coating material through the capillary function. The diameters of the lower and upper parts are different from each other to guide the induction, but the diameter of the lower part and the upper part is formed to be narrower from the lower part to the upper part, or the diameter of the lower part is formed to be larger than the diameter of the upper part.

In the non-exposed waterproofing method using a polypropylene hollow panel with a rubber asphalt coating material and perforations according to the present invention, the polypropylene hollow panel is provided in plurality on the rubber asphalt coating material layer, and the plurality of polypropylene Attach waterproof tape to the joint between the propylene hollow panels.

In the non-exposed waterproofing method using the rubber asphalt coating material and the perforated polypropylene hollow panel according to the present invention, the waterproof tape is a fabric coated with polyester blood, a natural rubber-based adhesive, a backing agent and LDPE. is composed

In the non-exposed waterproofing method using the asphalt rubber coating material and the perforated polypropylene hollow panel according to the present invention, the plurality of perforations formed in the polypropylene hollow panel have the same diameter or different diameters.

The present invention can improve durability by preventing the rubber asphalt coating material formed under the components installed for waterproofing from penetrating into the interior of the perforated polypropylene hollow panel and falling off through the means for solving the above problems. It works.

Another effect of the present invention is that the upper surface of the waterproofing layer is formed of a hard polypropylene hollow panel, so it can replace the protective mortar or waterproofing layer protective material to protect the waterproofing layer from damage during unrooted concrete construction, thereby reducing the process and shortening the period and curing The time can be shortened and the cost can be reduced at the same time.

Another effect of the present invention can be understood through the characteristics of the present invention, can be seen more clearly through the embodiments of the present invention, can be exhibited by means and combinations shown in the claims.

1 is a flowchart of an embodiment of a non-exposed waterproofing method using a polypropylene hollow panel with a rubber asphalt coating material and a perforation in the present invention;
2 is a view showing the configuration (physical properties) of the rubber asphalt coating material in the second application step according to FIG. 1;
3 is a view showing the configurations of the thermoplastic resin among the configurations (physical properties) of the rubber asphalt coating material according to FIG. 2;
Figure 4 is a perspective view showing the polypropylene hollow panel according to Figure 1;
5 is a view showing a laminated state of a concrete slab, a primer layer, and a coating layer, including the polypropylene hollow panel according to FIG. 1 .

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The detailed description of the invention that follows refers to the accompanying drawings, which show by way of illustration specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the present invention. It should be understood that various embodiments of the present invention are different but need not be mutually exclusive. For example, specific shapes, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the present invention in relation to one embodiment. In addition, it should be understood that the position or arrangement of individual components in each disclosed embodiment may be changed without departing from the spirit and scope of the present invention. Accordingly, the following detailed description is not intended to be taken in a limiting sense, and the scope of the present invention is limited only by the appended claims, along with all equivalents as claimed in the claims. In the drawings, like reference numerals refer to the same or similar functions throughout the various aspects.

1 is a flow chart of an embodiment of a non-exposed waterproofing method using a polypropylene hollow panel having a rubber asphalt coating material and a perforated panel in the present invention, and FIG. 2 is a configuration of the rubber asphalt coating material in the second application step according to FIG. physical properties), and FIG. 3 is a view showing the thermoplastic resin components among the components (physical properties) of the rubber asphalt coating material according to FIG. 2, and FIG. 4 is a perspective view showing the polypropylene hollow panel according to FIG. 1, 5 is a view showing a laminated state of a concrete slab, a primer layer, and a coating layer including the polypropylene hollow panel according to FIG. 1 .

The non-exposed waterproofing method (S100) using the rubber asphalt coating material and the perforated polypropylene hollow panel according to the present invention, as shown in FIGS. 1 to 5, is a primer layer by applying a primer to the surface of the concrete slab. A first application step of forming a (S110); a second coating step (S120) of forming a coating layer by applying a rubber asphalt coating on the primer layer that has been subjected to the first coating step; And a hollow polypropylene panel is provided on the upper portion of the coating material layer that has undergone the second application step, and a plurality of perforations are formed on one surface of the polypropylene hollow panel to provide the coating film material layer (S130) ); is made including

The first application step (S110) is a step of forming a primer layer (P) by applying a primer to the surface of the concrete slab (C).

The surface of the concrete slab (C) of the first application step (S110) improves the application of the primer by removing foreign substances such as soil and small stones before applying the primer.

The second application step (S120) is a step of forming a rubber asphalt coating material layer (R) by applying a rubber asphalt coating material on the primer layer (P) that has undergone the first application step (S110).

The rubber asphalt coating material is composed of asphalt, heavy carbon in calcium carbonate, light coal in calcium carbonate, polybudene resin, thermoplastic resin, cellulose fiber resin, toluene or xylene resin.

Specifically, the rubber asphalt coating material is 40 to 50% by weight of asphalt, 15 to 18% by weight of heavy carbon in calcium carbonate, 12 to 15% by weight of light coal in calcium carbonate, 8 to 12% by weight of polybutene resin, 8 to 10% by weight of thermoplastic resin %, 2 to 3% by weight of cellulose fiber resin, and 5 to 8% by weight of toluene or xylene resin.

Among rubber asphalt coating materials, asphalt is made by melting waterproofing paper on bricks or concrete, etc., and has a long lifespan and excellent waterproofing performance.

Among calcium carbonate, calcium carbonate is used a lot among additives used as plastic fillers. Most of the crushing operation of limestone with GCC (Ground Calcium Carbonate) is performed. It is also produced by spraying.

Among calcium carbonates, hard coal is P.C.C (Precipitated Calcium Carbonate), which is precipitated calcium carbonate, that is, produced by a chemical reaction.

Polybudene resin is a compound used as a raw material for various chemical products, such as lubricant additives and fuel cleaners, and has the advantage of being environmentally friendly and economical.

Thermoplastic resins are plastics that are molded using properties that can be repeatedly melted and solidified by heating and cooling, and have the advantage of being efficiently processed by extrusion molding and ejection molding.

Cellulose fiber resin is the main component of the cell wall of the plant and constitutes the plant fiber, so it is called cellulose and is a very important industrially resource.

Toluene is an aromatic hydrocarbon widely used as a starting material for the manufacture of industrial chemicals, also called methylbenzene.

Toluene has a melting point of -95℃ and a boiling point of 110.6℃. It is a flammable, toxic, colorless liquid, insoluble in water, but soluble in all common organic solvents.

Xylene resin is a xylene isomer. It is a flammable, poisonous, colorless liquid that is not viscous. It is insoluble in water, but it mixes well with various organic solvents.

Among the rubber asphalt coating materials, the thermoplastic resin consists of styrene butadiene styrene (SBS), styrene ethylene butylene styrene (SEBS), and chloroprene (CR).

Styrene Butadiene Styrene (SBS) has a diblock structure and is a thermoplastic elastomer with high elasticity and excellent deformation recovery. It is used as a modifier to improve the performance of asphalt due to its excellent processability, waterproof sheet, etc., as well as as a plastic modifier for automobile parts and PVC resin replacement.

Styrene Ethylene Butylene Styrene (SEBS) is a rubber modifier, called Styrene Ethylene Buthylene Styrene, and improves the overall mechanical properties of asphalt when mixed with asphalt.

Chloroprene (CR) has many superior properties compared to natural rubber and other synthetic rubbers, and has excellent properties such as weather resistance, ozone resistance, oil resistance, abrasion resistance, flame retardancy, heat resistance, and strong cohesive force, and is an easy-to-process material.

The rubber asphalt coating material is obtained by dissolving 40 to 50% by weight of asphalt and 8 to 10% by weight of a thermoplastic resin at 170 to 180°C for 1 hour, cooling to 120°C, and then adding 8 to 12% by weight of polybudene resin 30 After stirring for minutes to 1 hour, 15 to 18% by weight of heavy carbon in calcium carbonate and 12 to 15% by weight of light coal in calcium carbonate are added and stirred for 1 hour, the compound mixture is cooled to 90° C., toluene or xyl It is prepared by stirring after adding 5 to 8% by weight of renyongje, mixing 2 to 3% by weight of a cellulose fiber resin, and then stirring.

In the providing step (S130), a hollow polypropylene panel 100 is provided on the upper portion of the rubber asphalt coating material layer (R) that has undergone the second application step (S120), and the polypropylene hollow panel 100 is on one side of the It is a step in which a plurality of perforations 131 are formed and provided in the rubber asphalt coating material layer (R).

A polypropylene hollow panel (Polypropylene Panel, 100) is composed of an upper plate 110, an intermediate plate 120, and a lower plate 130, a plurality of formed on the lower plate 130 of the polypropylene hollow panel 100 The perforated hole 131 has different diameters at the bottom and the top to induce the rubber asphalt coating material disposed under the lower plate 130 of the polypropylene hollow panel 100 to rise through the capillary function to raise the polypropylene hollow panel ( 100), the rubber asphalt coating material and the polypropylene hollow panel 100 are integrated through the inflow (penetration) into the empty space formed in the void.

Capillary function, that is, capillary phenomenon (毛細管現象) refers to the property of a fluid to rise through a narrow space such as a thin tube or porous material regardless of external force such as gravity. say to go up

Specifically, the hole 131 formed in the lower part of the polypropylene hollow panel 100 has a different diameter at the lower part and the upper part, but is formed in a tapered shape that becomes narrower from the lower part to the upper part, or the diameter of the lower part is the diameter of the upper part. It is formed to be larger, and the rubber asphalt coating material is raised upward by the surface tension.

In the polypropylene hollow panel 100 in which a rubber asphalt coating material and a plurality of perforations are formed, the rubber asphalt coating material flows into the interior through a plurality of perforations 131 of the polypropylene hollow panel 100 (penetration) and fixing Through the rivet-like structure, there is an effect that the durability can be improved by preventing it from falling off.

Polypropylene hollow panel (100) has a lower specific gravity than polyethylene (PE), but it is economical at a relatively low price, and has good transparency and is not easily broken.

Polypropylene hollow panel 100 is one of the lightest synthetic resins, hygienic as it is tasteless, odorless, and non-toxic, has no harmful raw materials and has excellent electrical properties because it consists only of carbon and hydrogen. It is an eco-friendly material that does not generate the same harmful substances.

The polypropylene hollow panel 100 preferably has a size of 1 x 1 m, a thickness of 2 to 3 mm, and a plurality of perforations with an interval of 8 to 10 cm in order for a processor to easily perform a processing operation.

Since the polypropylene hollow panel 100 is made with the same size and thickness and the spacing of the perforations 131 as above, it has excellent strength and can maximize the waterproof performance of the waterproof layer, whereas if it is too thin, the waterproof performance of the waterproof layer is sufficient. On the contrary, if it is too thick, the construction work is inconvenient.

In the existing waterproofing method, the waterproofing layer is torn by being scratched by the wire mesh, whereas in the waterproofing method of the present invention, the top surface of the waterproofing layer is formed of a rigid polypropylene hollow panel 100 to protect the waterproofing layer from damage during unrooted concrete construction. As it can replace the protective mortar or waterproofing layer protective material, it has excellent advantages in terms of economy that can reduce the cost as well as shortening the period and curing time as the waterproofing layer is not torn and the process is reduced.

The polypropylene hollow panel 100 of the present invention is widely used in various fields because it has an anti-rust function to induce the growth of plant roots with the above advantages.

The polypropylene hollow panel 100 is formed of an upper plate 110, an intermediate plate 120 and a lower plate 130, a plurality of perforations 131 are formed in the lower plate 130, and the empty space is an intermediate plate ( 120) is formed.

The plurality of perforations 131 formed in the polypropylene hollow panel 100 have the same diameter or different diameters.

This is to selectively change the rubber asphalt coating material flowing into the empty space of the intermediate plate 120 through the plurality of perforations 131 of the lower layer according to the situation or the site.

A plurality of polypropylene hollow panels 100 are provided on an upper portion of the rubber asphalt coating material layer (R), and a waterproof tape is attached to a joint between the plurality of polypropylene hollow panels 100 .

The waterproof tape is composed of polyester blood, natural rubber-based adhesive, backing agent and fabric coated with LDPE.

Polyester blood is light and has high tensile strength and, in particular, has excellent waterproofing ability.

Adhesives based on natural rubber are non-toxic and eco-friendly, with no emission of environmental destructive hormones.

LDPE (Low Density Polyethylene) is a non-toxic, eco-friendly material that does not emit chemical components and environmental hormones harmful to the human body.

The waterproof tape has a thickness of 220㎛+-10㎛, 1.175kgf/25mm Typical adhesive strength, 21 Typicaldml vortex, 8.2kgf/25mmdml tensile strength and 14.10% elongation.

Because waterproof tape is easily affected by temperature, humidity, pressure, etc., avoid direct sunlight, high temperature and high humidity, and avoid applying a load to the side to prevent deformation.

Hereinafter, the report of the waterproof tape of the present invention will be described.

<Heavy metal>

The four heavy metals are cadmium (Cdmium, Cd), lead (Lead, Pb), mercury (Mercury, Hg), and hexavalent chromium (Cr Vl).

The MDL (Method Detection Limit) of cadmium (Cd) is 0.5 or less, the result value is ND (Not Detected), and the MDL of lead (Lead, Pb) is 5 or less, and the result value is also ND (Not Detected). Detected).

The MDL of mercury (Mercury, Hg) is 2 or less, the result value is N.D. (Not Detected), the MDL of hexavalent chromium (Cr Vl) is 8 or less, and the result value is N.D. (Not Detected).

<Bromb-based compound>

There are two types of bromine compounds, and the above 4 heavy metals are called 6 test items.

MDL (Method Detection Limit) is 5 or less, and the result is N.D. (Not Detected).

<Phthalate>

It consists of four types of phthalates, DEHP (bis(2-ethylhexyl) phthalate), DBP (dibutyl phthalate), BBP (benzylbutyl phthalate), and DIBP (diisobutyl phthalate).

MDL (Method Detection Limit) is less than 50, and the result is N.D. (Not Detected).

Therefore, the waterproof tape of the present invention contains two kinds of harmful heavy metals, cadmium (Cd), lead (Pb), mercury (Hg), hexavalent chromium (Cr Vl), bromine compounds, and four phthalates, DEHP (bis (bis ( 2-ethylhexyl) phthalate), DBP (dibutyl phthalate), BBP (benzyl butyl phthalate), and DIBP (diisobutyl phthalate) are ND (Not Detected), so it is an eco-friendly solution that fundamentally eliminates anxiety about harm to the human body. hostile product.

In the above, the present invention has been described based on a preferred embodiment, but the technical spirit of the present invention is not limited thereto, and it is possible to carry out modifications or changes within the scope described in the claims. It will be apparent to the person concerned, and such modifications or changes shall fall within the scope of the appended claims.

S100: Non-exposed waterproofing method using rubber asphalt coating and polypropylene hollow panel with perforations
S110: first application step
S120: second application step
S130: preparation stage
100: polypropylene hollow panel
110: upper plate
120: middle plate
130: lower plate
131: perforation
C: Concrete slab
P: Primer layer
R: Rubber asphalt coating layer

Claims (9)

A first application step of forming a primer layer by applying a primer to the surface of the concrete slab;
a second coating step of forming a coating layer by applying a rubber asphalt coating on the primer layer that has been subjected to the first coating step; and
A providing step in which a hollow polypropylene panel is provided on the upper portion of the coating material layer that has undergone the second application step, a plurality of perforations are formed on one surface of the polypropylene hollow panel, and the coating material layer is provided; is made, including
The rubber asphalt coating material is 40 to 50% by weight of asphalt, 15 to 18% by weight of bicarbonate in calcium carbonate, 12 to 15% by weight of light coal in calcium carbonate, 8 to 12% by weight of polybutene resin, 8 to 10% by weight of thermoplastic resin, cellulose A non-exposed waterproofing method using a rubber asphalt coating material and a polypropylene hollow panel with perforations, characterized in that it consists of 2 to 3% by weight of fiber resin and 5 to 8% by weight of toluene or xylene resin. delete According to claim 1,
The thermoplastic resin is styrene-butadiene styrene (SBS), styrene ethylene butylene styrene (SEBS), and a non-exposed waterproofing method using a polypropylene hollow panel with a rubber asphalt coating material and perforation, characterized in that it consists of chloroprene (CR). According to claim 1,
The rubber asphalt coating material is obtained by dissolving 40 to 50% by weight of asphalt and 8 to 10% by weight of a thermoplastic resin at 170 to 180°C for 1 hour, cooling to 120°C, and then adding 8 to 12% by weight of polybudene resin After stirring for 30 minutes to 1 hour, 15 to 18 wt% of heavy carbon in calcium carbonate and 12 to 15 wt% of light coal in calcium carbonate are added and stirred for 1 hour, the compound mixture is cooled to 90°C, toluene or A hollow polypropylene hollow type with a rubber asphalt coating material, characterized in that it is prepared by adding 5 to 8% by weight of a xylene solvent, stirring, mixing 2 to 3% by weight of a cellulose fiber resin, and stirring Non-exposed waterproofing method using panel. According to claim 1,
The plurality of perforations formed in the polypropylene hollow panel have different diameters at the bottom and the top to induce the rubber asphalt coating material to rise through the capillary function, and flow into the empty space formed in the polypropylene hollow panel. A non-exposed waterproofing method using a polypropylene hollow panel having a rubber asphalt coating and a perforated panel, characterized in that the rubber asphalt coating material and the polypropylene hollow panel are integrated through fixing. According to claim 1,
The plurality of perforations formed in the polypropylene hollow panel have different diameters at the lower and upper portions to elevate and guide the rubber asphalt coating material through a capillary function, but are formed to become narrower from the lower to the upper portion or to be formed in the lower portion. Non-exposed waterproofing method using a rubber asphalt coating material and a polypropylene hollow panel with perforations, characterized in that the diameter is formed larger than the diameter of the upper part. According to claim 1,
The polypropylene hollow panel is provided in plurality on the rubber asphalt coating material layer, and a waterproof tape is attached to a joint between the plurality of polypropylene hollow panels. A non-exposed waterproofing method using a hollow panel. 8. The method of claim 7,
The waterproof tape is a non-exposed waterproofing method using a polypropylene hollow panel with a rubber asphalt coating, characterized in that it consists of a fabric coated with polyester blood, a natural rubber-based adhesive, a backing agent and LDPE. According to claim 1,
A plurality of perforations formed in the polypropylene hollow panel are non-exposed waterproofing method using a polypropylene hollow panel with a rubber asphalt coating material and perforations, characterized in that the diameters are the same or different from each other.

Images