KR101148076B1 - Waterproof coating technology maintaining transparency of amorphous polymer and being capable of observing defect visually - Google Patents

Abstract

PURPOSE: A method for waterproofing a membrane with liquid capable of enabling a worker to observe defects with the naked eye through a transparent amorphous polymer resin is provided to easily perform the maintenance work of a waterproof structure. CONSTITUTION: A method for waterproofing a membrane with liquid capable of enabling a worker to observe defects with the naked eye through a transparent amorphous polymer resin is as follows. A membrane waterproofing structure comprises a concrete bottom, a transparent waterproof layer, and a moisture detection unit. The transparent waterproof layer is spread on the top of the concrete bottom. The moisture detection unit is formed between the concrete bottom and the transparent waterproof layer and senses that moisture flows into the concrete bottom.

Description

Water-proof coating technology maintaining transparency of amorphous polymer and being capable of observing defect visually}

The present invention relates to a coating waterproofing system that is constructed on a concrete top such as a rooftop.

In general, a concrete structure has a very tight and dense structure of its own structure, so that a certain degree of waterproofness is secured. However, hardened concrete is hard to avoid cracking due to curing process and load fatigue due to its inherent characteristics, and it is necessary to take additional waterproof measures due to its limitation as a porous body containing a myriad of fine pores.

Among the concrete structures, the rooftop floor of the building structure is a representative part of the structure directly. In addition, there is a so-called 'WET ZONE' such as a bathroom, a toilet, a kitchen, and a food (food) space, and a base and an outer wall of an underground structure. Among them, the rooftop floor has a large variation in temperature change due to direct sunlight and is directly exposed to ultraviolet rays, so that aging of concrete and deterioration of synthetic resin proceed rapidly. In addition, since the bottom surface is almost horizontally orthogonal to the direction of gravity, a local trapping due to natural precipitation may occur. The waterproofing of the rooftop floor has many fragile factors that can cause water-proof defects such as the possibility of cracking of the concrete matrix, the unevenness of construction quality due to the work of a relatively large area, and the installation of various facilities such as air conditioners and outdoor units. Therefore, it is more important and complicated.

The rooftop waterproofing method has been developed through a number of trials and errors, and currently more than 100 kinds of rooftop waterproofing methods are used. All methods have their strengths and weaknesses and can usually be distinguished in three ways.

First, depending on whether the waterproof layer is directly exposed to outdoor air and direct sunlight, it is divided into an exposure method and a non-exposure method. The non-exposure method is most widely used in new construction work. By placing bare concrete (protective mortar) on the original waterproofing layer to form a protective layer, it improves the stability and durability of the waterproofing layer and also forms a water barrier (drainage) for drainage. do. Exposure waterproofing has been widely used in recent years as products with high durability, UV resistance, weather resistance, etc. have appeared with the development of construction chemical technology.

Second, the degree of adhesion or adhesion between the waterproof layer and the base concrete matrix interface is classified into an insulation method and a non-insulation method. Considering the air permeability of the concrete matrix, which is a porous structure, and in response to shrinkage expansion behavior and cracking caused by temperature changes, the insulation method is advantageous. However, the insulation method has a disadvantage in that once water is introduced into the bottom of the waterproof coating layer, it is widely spread from the inflow point to the entire bottom surface.

Third, it is divided into waterproofing of coating film, waterproofing sheet, and waterproofing composite according to material shape and working method. Coating waterproofing is a method of hardening a liquid material in the field to form a seamless coating film, and urethane and epoxy coating materials are widely used. The content of the present invention also corresponds to a film waterproofing method. On the other hand, the sheet waterproofing is carried out by bringing in and expanding the waterproof sheet molded in the form of a roll (Roll) at the factory, the seam is treated by adhesive or heat fusion method. Joint part of the joint (Joint) can be a major defect, mainly asphalt-based, PVC-based, PP-based materials are widely used. Finally, composite waterproofing is a method of laminating various coating layers and sheet layers in sequence, and the construction procedure is complicated and the cost is somewhat high, but the reliability of waterproof performance is very high.

However, in all the existing waterproof methods described above, since the waterproof sheet layer and the waterproof coating layer are made of an opaque material, as shown in FIGS. 1 and 2, whether the sheet layer or the coating layer damaged part is found or leaked. Is difficult to detect, and it is not easy to determine the crack state of concrete. Accordingly, when a defect occurs, there is a problem in that it takes a lot of cost and time in maintenance because partial repair work is very difficult. Therefore, in general, when a fault occurs in the rooftop waterproofing, the process of removing and reworking the waterproofing layer of the entire rooftop is repeated rather than partially supplemented.

In addition, the coating film waterproof material is not good appearance due to the uniform and monotonous color of the turquoise or gray series, in particular, there is a problem that the work is complicated and takes a lot of time due to the slow curing speed after installing the waterproof coating layer.

At present, more than 100 rooftop waterproofing methods are outlined as follows.

First, there is a tendency to change from the non-exposed waterproof method to the exposed waterproof method.

Second, it is aiming at insulation method rather than non-insulation method.

Third, in order to compensate for the shortcomings of the single coating film or the single sheet waterproofing method, the composite waterproofing method is pursued.

Fourth, rooftop greening, which builds soil layers on rooftops and plants, is continuously expanding and spreading, and demands rooting resistance (root resistance) in addition to waterproofing performance.

Fifth, no matter how excellent the endurance endurance is present, and there is a problem in the water-resistant defects occur, if a defect occurs, a simple and quick method for repair work is required. That is, defect repair by partial supplementation is preferred to complete removal. Especially in the situation where rooftop recording is becoming more common, the ease of finding defects is becoming more important.

The general development of the rooftop waterproofing method as described above and summarized the main contents of the present invention according to [Table 1] are as follows.

The present invention has been made to solve the above problems, in the construction of a coating-type waterproof flooring material, transparency, which is inherent in the properties of amorphous polymers such as PVC resin, MMA resin, PE resin, PP resin, PC resin, EPOXY resin, etc. By maintaining and maintaining the transparency, it is possible to visually observe the concrete floor under the transparent waterproof layer, so that a leak can be easily found in case of a waterproof fault, and the repair and maintenance can be easily performed. It is an object of the present invention to provide a coating waterproof structure and a construction method capable of visual observation of a site.

In addition, the present invention, by quickly checking for leaks to increase the reliability of maintenance management, while constructing a transparent waterproof layer, it is possible to introduce a more stylish appearance, bright and colorful colors and designs to the rooftop waterproofing, so that curing is made quickly It is an object of the present invention to provide a waterproof coating structure and a construction method capable of visual observation of defects that can reduce the overall work time by simply compressing complex work processes.

The coating film waterproof structure capable of visual observation of the defective portion according to the present invention for realizing the above object, the concrete floor; It is applied to a predetermined thickness on the concrete floor to perform a waterproof function, including a transparent waterproof layer formed of a transparent material to enable visual observation of the concrete floor.

Here, the primer formed of a transparent material is preferably applied between the concrete floor and the transparent waterproof layer.

The transparent waterproof layer is preferably configured to include an amorphous polymer resin material.

At this time, the transparent waterproof layer, may be made of MMA resin having transparency.

The transparent waterproof layer may be formed of a plurality of layers.

Between the concrete floor and the transparent waterproof layer may be provided with at least a portion of the water detection means to detect the inflow of water to the concrete floor.

In addition, between the concrete floor and the transparent waterproof layer may be configured to be provided with a multi-functional ultra-thin pattern layer to implement at least one or more of the decorative function, visibility securing function, rigidity reinforcement function, insulation function.

The coating film waterproofing method capable of visual observation of defects according to the present invention for realizing the above object is a method of constructing the coating film waterproofing structure, the first step of applying a primer made of a transparent material on the concrete floor; ; It characterized in that it comprises a second step of forming a transparent waterproof layer by applying the transparent waterproofing material in a spray method on the primer applied in the first step.

It is preferable that a moisture sensing means is installed to detect the inflow of moisture to the concrete floor before or after applying the primer in the first step.

The main problem solving means of the present invention as described above, will be described in more detail and clearly through examples such as 'details for the implementation of the invention', or the accompanying 'drawings' to be described below, wherein In addition to the main problem solving means as described above, various problem solving means according to the present invention will be further presented and described.

The coating film waterproof structure and construction method capable of visual observation of a defective portion according to the present invention has the following effects.

In the present invention, transparent waterproof layer is formed using PVC resin, MMA resin, PE resin, PP resin, PC resin, EPOXY resin, etc., which allows transparency to the naked eye to observe the concrete floor. Leakage can be quickly and easily found by monitoring the discoloration of concrete. Accordingly, maintenance and maintenance of the waterproof structure can be easily performed.

In addition, the present invention, when provided with a moisture detection means for detecting a leak state in the transparent waterproof layer can be used to quickly check whether the water leakage to proceed with the repair work, and also composed of a plurality of layers or a transparent waterproof layer, or In the case of forming a functional ultra-thin pattern layer, it is possible to introduce a more refined appearance, bright and colorful colors and designs, and to perform a complex function such as a partial insulation material and a strength reinforcement function.

In addition, the present invention improves the 'slow curing speed', which is pointed out as a problem of the coating waterproofing material when using MMA resin as a material of the transparent waterproofing layer more quickly, reducing the current curing time, which usually takes 48 hours to less than 1 hour, There is also the effect of simply compressing the work process to reduce the overall work time.

1 is a perspective view of a cutaway showing a general sheet waterproof structure,
Figure 2 is a perspective view of the incision showing a typical coating film waterproof structure,
3 is a perspective view of a cutaway showing a waterproof structure according to a first embodiment of the present invention,
4 to 7 are cutaway perspective views showing various waterproof structures (multiple transparent waterproof layers) according to a second embodiment of the present invention,
8 to 11 are cutaway perspective views showing various waterproof structures (compound functional ultra-thin pattern layer) according to a third embodiment of the present invention,
12 to 15 are reference diagrams for explaining the main effects of the waterproofing film structure according to the present invention in comparison with the prior art, Figures 12 to 14 is a reference diagram showing a conventional waterproof film structure, Figure 15 is to the present invention It is a reference diagram showing the structure according.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

3 is a cutaway perspective view showing a waterproof structure according to a first embodiment of the present invention.

The waterproof structure according to the first embodiment of the present invention is composed of a concrete waterproof floor, such as a rooftop, a transparent waterproof layer applied on the concrete floor. Of course, it is preferable that a transparent primer made of a transparent material is applied between the concrete floor and the transparent waterproof layer.

Concrete floor refers to the top or bottom surface of a structure that requires waterproofing, such as a roof of a normal building, a floor of a structure, and the like.

The transparent waterproof layer is applied to a certain thickness on the concrete floor to perform a waterproof function. In particular, the transparent waterproof layer uses a transparent material so that the concrete floor can be seen.

Therefore, the waterproof structure according to the first embodiment of the present invention has a configuration in which a transparent primer and a transparent waterproof layer are sequentially applied onto a concrete floor such as a rooftop.

The primer protects the concrete floor surface from corrosion or physical impact before applying the transparent waterproof layer, reinforces the concrete surface structure and prevents contamination by latencies and dusts so that the transparent transparent layer can be smoothly applied. This is the first layer to be painted on the concrete floor. As the primer material, it is preferable to use materials of the same physical properties and the same series as the transparent waterproof layer on the upper side, but it is preferable to use an adhesive primer of a transparent material (such as an amorphous resin) in which the concrete floor can be seen.

The transparent waterproof layer is preferably configured to include an amorphous polymer resin in order to secure transparency. That is, the transparent waterproof coating layer, that is, the transparent waterproof layer is formed by maintaining and maintaining transparency, which is an inherent property of amorphous synthetic resin, throughout the entire process from the factory production stage to the field work finishing stage of the material. Since the amorphous resin used in the transparent waterproof layer of the present invention should be used as a rooftop waterproofing material facing the outside air, it is assumed to have UV resistance and weather resistance as a basic condition. In addition, various stabilizers and additives may be mixed. The transparent waterproof layer is a material having transparency, and made of any one or more of urethane resin, PVC resin, MMA resin, PE resin, PP resin, PC resin, and EPOXY resin. Among them, MMA resin is the most desirable. MMA resin has high UV resistance and weather resistance, and at the same time, it is very easy to secure transparency, color can be colored in various colors, and the curing speed is very fast. This can improve the work quality and shorten the working air.

When the MMA resin is used as a material, such a transparent waterproof layer is preferably spray-sprayed, instead of a straw coating method commonly used in general film waterproofing, to ensure optimum quality and uniform film thickness. Do. That is, the transparent waterproof layer material stored in the reservoir is applied by spraying on a concrete floor to which the transparent primer is applied using a spray gun. At this time, the preferable coating film thickness of the transparent waterproof layer is at least 0.5 mm or more, and 2-3 mm is suitable.

When the transparent waterproof layer is formed on the concrete floor as described above, the state of the concrete under the transparent waterproof layer can be directly observed with the naked eye.

In general, when the concrete gets wet due to leakage, the color of the concrete is changed from light grayish white to dark blackish brown. Therefore, if a leak occurs in the lower portion of the transparent waterproof layer, the concrete of the part is wetted by moisture, and then the color changes immediately, so that the leak can be quickly and accurately detected.

On the other hand, the primer and the transparent waterproof layer may be configured using a colorless transparent material, but not limited to this, in view of the visible light transmittance conditions (for example, visible light transmittance of 70% or more, etc.) in a range that does not impair transparency, constant Within the limits, using a transparent pigment to add a little color to various colors to achieve a more beautiful waterproof finish.

In addition, in the above, the transparent waterproof layer has been described based on the structure of the coating film waterproof structure, but is not limited to this, it is also possible to configure the transparent waterproof layer as a transparent sheet structure. In this case, it is preferable that a transparent adhesive primer is used between the concrete floor and the transparent waterproof layer.

In addition, in the above embodiment has been described a configuration in which the waterproof structure is installed on the concrete floor, in addition to the floor layer of the concrete material, the waterproof layer by applying the transparent waterproof layer according to the present invention to the floor layer, wall or exterior of the same or similar material. It is also possible to configure.

Hereinafter, various application embodiments based on the configuration of the first embodiment of the present invention as described above will be described with reference to FIGS. 4 to 11.

4 to 7 are cutaway perspective views showing various waterproof structures according to a second embodiment of the present invention.

Referring to FIG. 4, the waterproof structure according to the second embodiment of the present invention shows a configuration in which the transparent waterproof layer is formed of a plurality of layers (two layers in the embodiment of the drawing).

The reason why the transparent waterproof layer is composed of a plurality of layers as described above is to allow the transparent waterproof layer to be configured by variously changing the thickness configuration, rigidity, elongation, UV resistance, transparency, and the like.

That is, when the transparent waterproof layer is composed of a plurality of layers, the thickness of the waterproof layer can be thickened to some extent, and the thickness of the waterproof layer can be uniformly formed as a whole, and the upper and lower transparent waterproof layers may be made of different materials as necessary. It can also be configured.

In addition, the upper and lower transparent waterproof layers can be configured to have different stiffness or elongation. Since the upper side is exposed to the outside relatively, a high rigidity and a low elongation are used, and the lower part can cope with the behavior and crack of concrete. It can be constructed using materials that have relatively low rigidity but high elongation.

In addition, the upper and lower transparent waterproof layer may be configured by adding different colors. 5 shows a state in which a color is added to the upper transparent waterproof layer, and FIG. 6 shows a state in which a color is added to the lower transparent waterproof layer.

FIG. 7 is a view in which a color is added to the lower transparent waterproof layer as in FIG. 6, but is different from FIG. 5 and FIG.

8 to 11 are cutaway perspective views showing various waterproof structures according to a third embodiment of the present invention.

As illustrated in these drawings, in the waterproof structure according to the third embodiment of the present invention, a composite functional ultra-thin pattern layer is formed between the concrete floor and the transparent waterproof layer (or primer).

FIG. 8 shows the configuration of the composite functional ultrathin pattern layer installed between the concrete floor and the primer, and FIG. 9 shows the configuration of the composite functional ultrathin pattern layer installed between the primer and the transparent waterproof layer.

FIG. 10 shows a configuration in which a composite functional ultrathin pattern layer is installed between a plurality of transparent waterproof layers, and FIG. 11 illustrates a configuration in which a composite functional ultrathin pattern layer is installed between a concrete floor and a primer when a plurality of transparent waterproof layers are provided.

Complex functional ultra-thin pattern layer is installed between any one of the concrete floor, primer, (multiple) transparent waterproof layer can be configured to include a moisture sensing means for detecting the inflow of moisture to the concrete floor when water is introduced. .

Since the waterproof structure of the present invention is made entirely transparent, it is possible to sufficiently detect whether there is a leakage even by changing the color of the concrete base, but the papermaking, textile fabrics, thin plates, etc. of the property of discoloring by contacting the moisture of the multi-functional ultra-thin pattern layer. When installed under the transparent waterproof layer as a kind of leak detection sensor (moisture sensing means), it is possible to secure more visible and efficient leak visibility, it is possible to clearly identify whether the leak. When the main purpose of the composite functional ultrathin pattern layer is to be used as a moisture sensing means, it is preferable to place the position under the primer due to the cross-sectional structure.

Such moisture sensing means is manufactured by patent registration 0173103 'water contact discoloration material and its manufacturing method', patent registration 0390317 'water repellent screen print processing method for forming a fabric expressing the pattern by contact of moisture', or moisture It is also possible to configure using a known special ink which is discolored by.

In addition, the composite functional ultra-thin pattern layer may be made of a pattern sheet structure of a certain unit in a condition that does not significantly reduce the transparency of the waterproof structure according to the present invention, in addition to the moisture detection function, decorative function, visibility securing function, rigid reinforcement function, insulation It may be configured to implement at least one or more of the functions.

That is, the composite functional ultra-thin pattern layer made of paper, textile fabrics, thin plates, etc. is designed in various patterns and shapes such as petal patterns, alphabets or Korean letters, numbers, and symbols as illustrated in the drawings, in addition to the discoloring function due to moisture contact. If you do, you can provide a refined appearance on top of the rooftop, and can also improve aesthetics and publicity from the sky.

In addition, when a certain level or more of tensile strength is secured in papermaking, textile fabrics, and thin plates, it also provides a function of reinforcing the strength of the waterproof layer as a whole.

In addition, papermaking, textile fabrics, thin plates, etc. may also play a role in the development of the waterproof structure of the present invention by the 'insulation method', the papermaking, textile fabrics, thin plates, etc. installed under the transparent waterproof layer for the ventilation of concrete Partial insulation can be realized because it can play the role of a pore. In case of using the main purpose of the multi-functional ultrathin pattern layer as insulation means, it is preferable to place the position under the primer because of the cross-sectional structure, and the pattern is connected to each other and continues to the parapet section in terms of the effect of aeration and degassing. More preferred.

As a result, the composite functional ultrathin pattern layer consisting of papermaking, textile fabrics, and thin plates has a role as a leak detection sensor (moisture sensing means), a design role as a design material, a spacer as a spacer to realize partial insulation, and a transparent waterproof layer (coating film). It is possible to perform a complex function such as strengthening the strength of the layer).

Referring to Figures 12 to 15, the main effect of the coating film waterproof structure according to the present invention as described above will be described in comparison with the prior art.

12 to 14 is a reference diagram for explaining the problem of the conventional coating film waterproof structure.

12 is a cross-sectional view showing a typical rooftop cross-sectional configuration, when the plain concrete is installed on the non-exposed waterproof layer, the water introduced into the expansion joint (A3) of the plain concrete stays on the bottom of the plain concrete, and a defect (A2) occurs in the non-exposed waterproof layer. If it penetrates under the unexposed waterproof layer. In addition to the water penetrated through the parapet concrete joint section (A1) to find the cracks (B1, B2) of the slab concrete structure falls into the room. Therefore, there is a problem in that the repair work is quite difficult because the defect occurrence part and the indoor leakage part often do not coincide.

FIG. 13 is a cross-sectional view illustrating a rooftop cross-sectional structure when the plain concrete is omitted in the structure of FIG. 12. Even when the exposed waterproof layer without the plain concrete is opaque, the coating layer and the sheet layer are opaque. Becomes difficult. That is, since the damaged parts A1 and A2 of the exposed waterproof layer and the leaked parts B1 and B2 of the room do not coincide with each other, there is a problem in that a defect is not easily found as in FIG. 12.

14 is a cross-sectional view showing the rooftop cross-sectional structure in the case of adding an exposed waterproof layer, if a defect (A1, A2) occurs in the waterproof layer after a certain period of time after the construction of the building, when additional leak waterproof layer is usually installed on the plain concrete. many. However, if only the waterproof layer is overlaid without removing the root cause, it becomes more difficult and complicated to identify the cause of the leak. In other words, if a flaw (A4) occurs in the exposed waterproof layer, water flows into the bottom of the bare concrete, and this water passes through the flaw portion (A2) of the existing non-exposed waterproof layer and eventually falls to the cracked portions (B1, B2) of the slab concrete structure. For losing.

However, the coating film waterproofing structure according to the present invention as described above, with reference to Figure 15, because the transparent coating waterproofing layer is configured on the concrete structure can be visually observed on the concrete floor, concrete crack state (B1, B2) and It is possible to easily observe the discoloration state due to the leak, and thus it is possible to more accurately grasp the defect positions A1 and A2 and the leaking part. As a result, the coating film waterproof structure of the present invention can be repaired more quickly and easily, and also can improve the reliability of the repair work even with partial repair, which can significantly reduce the long-term waterproof maintenance cost, as well as waterproof. The reliability of the structure can also be greatly improved.

As described above, the technical ideas described in the embodiments of the present invention can be performed independently of each other, and can be implemented in combination with each other. While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art. It is possible. Accordingly, the technical scope of the present invention should be determined by the appended claims.

Claims (9)

Concrete floors;
It is applied to a predetermined thickness on the concrete floor to perform a waterproof function, including a transparent waterproof layer formed of a transparent material to enable visual observation of the concrete floor,
A water film-proof structure capable of visual observation of a defective part between the concrete floor and the transparent waterproof layer, wherein water detection means is provided on at least a portion of the concrete floor to detect that water is introduced into the concrete floor.
The method according to claim 1,
A coating film waterproof structure capable of visual observation of a defective portion between the concrete floor and the transparent waterproof layer is coated with a primer formed of a transparent material.
The method according to claim 1,
The transparent waterproof layer is a coating film waterproof structure capable of visual observation of the defect portion, characterized in that comprises an amorphous polymer resin material.
The method according to claim 1,
The transparent waterproof layer is a coating film waterproof structure capable of visual observation of the defective portion, characterized in that made of MMA resin having transparency.
The method according to claim 1,
The transparent waterproof layer is a coating film waterproof structure capable of visual observation of the defective portion, characterized in that consisting of a plurality of layers.
delete The method according to claim 1,
Between the concrete floor and the transparent waterproof layer is a coating film capable of visual observation of the defects, characterized in that a multi-functional ultra-thin pattern layer is provided to implement at least one of the decorative function, securing visibility, rigidity reinforcement function, insulation function Waterproof structure.
As a method of constructing the coating-film waterproofing structure of any one of Claims 1-5,
A first step of applying a primer made of a transparent material on the concrete floor;
The coating film waterproof construction method that can be observed by the naked eye, characterized in that it comprises a second step of forming a transparent waterproof layer by spraying the transparent waterproofing material on the primer applied in the first step.
The method of claim 8,
The method of waterproofing the coating film for visual observation of defects, characterized in that moisture sensing means for detecting the inflow of moisture to the concrete floor before or after applying the primer in the first step is installed.

Images