KR20070087418A - Outdoor waterproof structure and method - Google Patents

Abstract

An outdoor waterproof structure and a method thereof are provided to prevent a waterproof layer from being damaged or separated by enhancing the adhesion and air-permeability using epoxy primer and middle viscosity urethane. An outdoor water proof structure comprises an epoxy primer layer(20), a filter sand(50), a flat chip layer(70), and first, second and third middle urethane layers. The epoxy primer layer is deposited on a floor(10). The first middle urethane layer(30) is deposited on the epoxy primer layer. The second middle urethane layer(40) is deposited on the first middle urethane layer. The filter sand layer is deposited on the second middle urethane layer. The third middle urethane layer(60) is deposited on the filter sand layer. The flat chip layer is deposited on the third middle urethane layer.

Description

Outdoor waterproof structure and method {OUTDOOR WATERPROOF STRUCTURE AND METHOD}

1 is a partial perspective view showing a conventional outdoor waterproof structure.

2 is a partial perspective view showing an outdoor waterproof structure according to the present invention.

3 is a partially enlarged cross-sectional view showing an outdoor waterproof structure according to the present invention.

4 is a flowchart illustrating an outdoor waterproofing method according to the present invention.

<Explanation of symbols for main parts of the drawings>

10: bottom, 20: epoxy primer layer,

30: first medium viscosity urethane layer, 40: second medium viscosity urethane layer,

50: filter sand layer, 51: filter sand,

60: third medium viscosity urethane layer, 70: plate-shaped chip layer,

71: plate chip.

The present invention relates to an outdoor waterproof structure and method, in particular, to improve the adhesion to the floor using an epoxy-based primer as a coating film for the floor, such as concrete floor, the coatings of the upper layer to the external environment such as sunlight or external impact The present invention relates to an outdoor waterproof structure and method capable of withstanding and having breathability, thereby preventing damage or lifting of the waterproof layer.

For example, when constructing a rooftop floor by a concrete slab, rainwater or the like is leaked into the building through the rooftop floor, and the rooftop floor is generally waterproofed to prevent such leakage phenomenon. In particular, rooftops and the like are under the most severe environmental conditions that are directly exposed to the external environment, so that the waterproofing should be performed in a special structure.

For example, the waterproofing should be made according to the characteristics of the waterproofing material, the floor condition and the external environmental requirements. In other words, if the water content of the floor is high, the waterproofing material adheres to the base layer, which adversely affects the performance of the material, and the air pocket (between the floor and the waterproof layer) may be caused by water vapor pressure vaporized after construction or contraction and expansion due to temperature change. Air pockets) or pinholes in the waterproofing layer, and tearing or breaking of the waterproofing layer may occur. If these problems appear, the repair work should be made, and even if the repair is made by the same waterproof method, the same problem appears, and the maintenance of the building costs a lot, so it is necessary to prevent this in advance.

The rooftop waterproofing is constructed for the purpose of extending the life of the building by protecting the rooftop slab as well as blocking the leakage. Various techniques have been proposed, such as coating waterproofing, sheet waterproofing, and the structure of mixing the waterproofing of the film and the sheet waterproofing. Among them, a conventional representative example of waterproofing of a coating is disclosed in Korean Utility Model Model No. 192773.

As shown in FIG. 1, the waterproof structure includes a urethane primer layer 2 laminated on a floor 1 such as a concrete floor, and a first de-urethane layer laminated on an upper surface of the urethane primer layer 2. 3), a second de-urethane layer 4 laminated on the upper surface of the first de-urethane layer 3, and a sand or silica sand layer laminated on the surface of the second de-urethane layer 4 ( 5) and an acrylic top-coat layer 6 laminated on the sand or silica sand layer 5.

However, in the conventional waterproof structure as described above, there are the following problems.

For example, when the aging concrete floor is repaired and waterproofed, the concrete floor is grounded in advance, and the surface of the concrete is not exposed to sunlight. Open pores appear. Since such open pores are caused to increase air pressure and lift up the waterproof layer when the temperature rises due to sunlight after the waterproofing treatment, it is very important not to be affected by the open pores.

However, in the conventional waterproof structure as well as the above-described waterproof structure, in general, the entire thickness of the waterproof layer is thinly formed, and the pinholes are enclosed as it is without blocking pores due to surface tension in the process of stacking the coating layers. Form or form an air pocket. These pinholes are a direct cause of water leakage and become a factor of failing to achieve the original purpose of waterproofing, and the air pocket is a factor to excite the waterproofing layer due to an increase in air pressure caused by a temperature rise.

Moreover, in the case of the urethane primer laminated on the bottom 1, the elasticity and the exposure performance is excellent, but the adhesion is accelerated the phenomenon of lifting the waterproof layer. In other words, the urethane primer is soaked in the base layer of the bottom (1) due to the lack of adhesion, it is placed on the floor (1) is not integrated, the moisture inherent in the bottom (1) in the form of water vapor in the form of steam due to the temperature rise by sunlight As it rises and forms water droplets again under the waterproof layer, and accumulates under the waterproof layer, and the adhesion of the urethane primer layer 2 to the bottom 1 is weak, the urethane primer layer 2 starts to lift from the bottom 1, The phenomenon is accelerating.

In addition, in the conventional waterproof structure, the sand or silica sand layer 5 and the acrylic top-coat layer 6 serve as a wear-resistant coat, but the thickness of the acrylic top-coat layer 6 is thin and sand. Alternatively, a coarse material having a grain size of about 15 to 50 mesh is applied as the material of the silica sand layer 5, and the acrylic top-coat layer 6 and the sand or silica sand layer 5 are easy to fall off due to various reasons such as walking or external impact. In addition, when the acrylic top-coat layer 6 and the sand or silica sand layer 5 are separated, the basic coating film is immediately exposed, which causes a problem of deterioration in durability.

In addition, although the basic coating film is not directly exposed to sunlight by the sand or silica sand layer 5, the original application purpose of the sand or silica sand layer 5 is the second de-urethane 4 and the acrylic tower-. Since the interlayer adhesion with the coat layer 6 is increased, the effect of blocking sunlight is insignificant.

In addition, since the acrylic top-coat layer 6 is laminated on the uppermost layer, when walking with water or snow remaining, it is not only slippery and uncomfortable to walk, but there is a risk of falling and injury.

The present invention has been made in consideration of the above-described conventional problems, by using an epoxy-based primer as a coating film for a variety of floors, such as concrete floors to increase the adhesion to the concrete floor, the coatings of the upper layer is the outside of sunlight or external impact, etc. It is intended to withstand the environment and to have breathability, thereby preventing the waterproof layer from being damaged or lifted.

In order to achieve the above object, the outdoor waterproof structure according to the present invention, the epoxy-based primer layer laminated on various floors, such as concrete floor; A first medium viscosity urethane layer laminated on the epoxy primer layer; A second medium viscosity urethane layer laminated on the first medium viscosity urethane layer; A filter sand layer laminated on the surface of the second medium viscosity urethane layer; A third medium viscosity urethane layer laminated on the filter sand layer; And a plate type chip layer stacked on the third medium viscosity urethane layer.

In addition, the outdoor waterproofing method according to the present invention comprises the steps of forming an epoxy-based primer layer by applying an epoxy-based primer on various floors, such as the concrete floor possessed; Forming a first medium viscosity urethane layer by applying a medium viscosity urethane on the epoxy primer layer to cure the urethane layer; Forming a second medium viscosity urethane layer and a filter sand layer by applying a second medium viscosity urethane on the first medium viscosity urethane layer, and spraying and curing the filter sand on the applied medium viscosity urethane; And, by applying a medium-weight urethane on the filter sand layer, and by sprinkling the plate-shaped chip on the applied medium-weight urethane, it characterized in that it comprises a step of forming a third medium viscosity urethane layer and a plate-like chip layer.

According to the present invention, silica is applied to the filter sand forming the filter sand layer, and the particle size thereof is preferably about 100 mesh.

In addition, the plate-like chip constituting the plate-like chip layer is made of plastic or segregation, the average diameter is preferably 3 ~ 10mm.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, the terms or words used in the present specification and claims are defined in the technical spirit of the present invention on the basis of the principle that the inventor can appropriately define the concept of the term in order to explain his invention in the best way. It must be interpreted to mean meanings and concepts.

2 and 3, the outdoor waterproof structure according to the present invention is shown.

The outdoor waterproof structure according to the present invention includes an epoxy primer layer 20, a first medium viscosity urethane layer 30, a second medium viscosity urethane layer 40, a filter sand layer 50, and a third The midpoint is made of urethane layer 60 and plate-like chip layer 70.

The epoxy-based primer layer 20 is formed by applying an epoxy-based primer to various concrete floors such as a rooftop floor, mortar floor, iron plate floor, or the like, and curing the epoxy-based primer.

In the present invention, the reason why the epoxy-based primer is applied is that the existing urethane-based primer is excellent in elasticity and exposure performance, but the adhesion is poor considering the fact that there is a high risk of floating the waterproof layer from the bottom 10, the epoxy-based primer is elastic Without aging, the aging proceeds faster when exposed to sunlight than urethane. However, the adhesion of the epoxy primer layer 20 to the bottom 10 can be enhanced. That is, in the case of the urethane-based primer, it is laminated in a state in which the base layer of the bottom 10 is hardly permeated and stacked, and when the temperature is increased by sunlight, the moisture inherent in the bottom 10 is transferred to the bottom of the water vapor. As it rises up and forms a water droplet under the waterproof layer again, it becomes vigorously under the waterproof layer, and an air pocket is formed by air expansion, so that the waterproof layer is lifted up. When the epoxy-based primer is applied as in the present invention, the epoxy-based primer is Since it penetrates into the support layer of (10) and integrates with the bottom 10, the adhesion is improved, and thus the waterproof layer is prevented from being lifted up by moisture and the formation of air pockets is prevented, so that the waterproof effect is improved and the adhesion is excellent. The interlayer adhesion to the layers to be laminated may also be improved.

The first mid-viscosity urethane layer 30 and the second mid-viscosity urethane layer 30 are sequentially stacked on the epoxy-based primer layer 20 as described above, wherein the first mid-viscosity urethane layer 30 and the second mid-point are In addition, the urethane layer 40 is characterized in that the epoxy-based primer is insufficient in elasticity, for example, to provide air permeability while eliminating pinholes caused by open pores of the concrete floor 10 so that air pockets do not occur. And a medium viscosity having excellent properties of flame retardancy can be formed by applying and curing urethane.

For example, in the case of repairing the waterproofing layer, the waterproofing layer is removed and the aged concrete floor 10 is ground with a grinding machine applied with diamond or diamond in order to clean up the ground. If the old surface is removed, it is not exposed to sunlight. A solid concrete face appears, which appears as open pores by the voids in the concrete. Since the open pores form a pinhole and become a factor that inhibits the waterproofing performance, it is preferable to remove the pores completely. In the present invention, an epoxy-based primer having excellent adhesion is applied, followed by applying a urethane with a medium viscosity twice, and an epoxy-based primer. Since the layer 20, the first medium viscosity urethane layer 30, and the second medium viscosity urethane layer 40 are laminated in this order, all open pores may be clogged and removed in the process of applying the epoxy-based primer and the medium viscosity urethane. Can be. In addition, the moisture inherent in the bottom 10, since the mid-range urethane has excellent breathability, it can be naturally discharged to the outside through the urethane.

Meanwhile, the filter sand layer 50 is stacked on the second medium viscosity urethane layer 40, and the medium viscosity urethane is formed on the first medium viscosity urethane layer 30 to form the second medium viscosity urethane layer 40. After application on, it can be formed by spraying filter sand to cure the midpoint urethane. In addition to improving the interlayer adhesion to the layers stacked thereon, the filter sand layer 50 functions to block sunlight from reaching the lower layer, and forms the second medium viscosity urethane layer 40. In order to reduce the surface tension of the medium-weight urethane applied so that the medium-weight urethane flows well into the pinholes generated by open pores, the pinholes can be completely removed, and the second medium viscosity urethane layer 40 It also functions to strengthen the coating and increase durability.

Silica is applied to the filter sand 51 forming the filter sand layer 50, and the particle size thereof is preferably about 100 mesh.

The third mid-viscosity urethane layer 60, like the first mid-viscosity urethane layer 30 and the second mid-viscosity urethane layer 40, is applied by curing a mid-range urethane excellent in breathability, strength, elasticity and flame retardancy, and cured. The medium viscosity urethane layer is applied to form the second medium viscosity urethane layer 40, and then a plate-shaped chip is applied on the applied medium viscosity urethane to cure the medium viscosity urethane to form a third medium viscosity urethane layer ( 60 and the plate-like chip layer 70 thereon are formed.

The third medium viscosity urethane layer 60 is a layer to overcome sunlight and aging, and is preferably formed by applying the urine viscosity of the undiluted solution, the thickness thereof is increased by applying, the third medium viscosity In order to protect the urethane layer 60, the plate-like chip layer 70 is laminated on the second medium viscosity urethane layer 40.

That is, when the third viscosity of the urethane layer 60 is exposed to the outside, the person passes and continues to be exposed to sunlight, causing damage or aging to occur. As described above, the third point of gravity as the plate-shaped chip layer 70 is generated. When the urethane layer 60 is protected, the impact at the time of walking or when the object falls is not transmitted directly to the third middle viscosity urethane layer 60, and the plate-shaped chip layer 70 moderates the impact and The triple viscosity urethane is protected, and on the other hand, by blocking sunlight from irradiating the third viscosity viscosity urethane layer 60, the third viscosity viscosity urethane is effectively prevented from damage or aging, and the generation of moisture is also reduced.

The plate-like chip 71 constituting the plate-like chip layer 70 is preferably made of plastic or segregation with an average diameter of approximately 3 to 10 mm. In addition, the plate chip 71 may be formed of a variety of figures, by the function of forming the surface of the waterproof layer to be bent, not only improves the aesthetics to a three-dimensional feeling, but also prevents slipping to facilitate the function of walking. do.

Next, the outdoor waterproofing method according to the present invention will be described.

As shown in FIG. 4, first, the waterproof layer may be adhered to a concrete floor 10 such as a rooftop 10 or a floor 10 such as a mortar floor 10, an iron plate bottom 10, or the like. Have (10) The possession of such a floor 10 corresponds to both the case of building a new building and the case of repairing a waterproof layer.

In this way, the epoxy-based primer layer 20 is formed by applying and curing an epoxy-based primer on the carried base 10.

Next, the first medium viscosity urethane layer 30 is formed by applying a hardened urethane having excellent air permeability, strength, elasticity, and flame retardancy on the epoxy primer layer 20.

In the case of applying the medium-density urethane, it is preferable to apply the medium-density urethane within approximately 24 hours during the curing process after applying the epoxy-based primer. Considering that it can fall. For example, if the epoxy-based primer is hardened and the urethane-based urethane is applied in such a state that the epoxy-based primer is hard to be touched by hand, the adhesion between the epoxy-based primer and the urethane-based urethane is very excellent, so that the phenomenon of lifting between layers does not occur.

Next, a medium viscosity urethane excellent in breathability, strength, elasticity, and flame retardancy is applied on the first medium viscosity urethane layer 30.

Next, the filter medium is sprayed on the medium viscosity urethane applied on the first medium viscosity urethane layer 30 to cure the medium viscosity urethane to thereby form the second medium viscosity urethane layer 40 and the filter sand layer 50. Form.

Silica is applied to the filter sand 51 forming the filter sand layer 50, and the particle size thereof is preferably about 100 mesh. Very fine filter sand 51 of 100 mesh is applied thinly to the medium-weight urethane to reduce the surface tension of the medium-weight urethane, so that the medium-weight urethane with viscosity before hardening, for example, concrete floor (10) By the open pores of the epoxy-based primer and the medium viscosity for forming the first medium viscosity urethane layer 30 flows well into the pinholes that may occur in the process of applying the urethane, the pinholes can be removed.

Next, a medium viscosity urethane is applied on the filter sand layer 50.

Next, the third medium viscosity urethane layer 60 and the plate-shaped chip layer 70 are formed by spraying the plate-like chip 71 on the medium viscosity urethane before curing applied on the filter sand layer 50.

The plate chip 71 is made of plastic or segregation, the average diameter of which is 3 ~ 10mm. The plate chip 71 may be formed in various shapes, and thus, various patterns may be formed on the surface of the waterproof layer by the plate chip layer 70.

On the other hand, when sprinkling the plate-like chip 71, most of the plate-like chip 71 is sprinkled on the medium-weight urethane in a horizontal tank, among which there may be those protruding from the surface of the waterproof layer obliquely or vertically inserted into the medium-weight urethane. In this way, the protruding portions of the plate-like chip 71 can be removed by cutting, polishing, etc., after the urine of the medium viscosity is cured. In addition, the plate-shaped chips that are not attached to the medium-weight urethane can be removed by blowing with a compressed air, or by sweeping with a broom, or by suctioning with a vacuum cleaner after the medium-weight urethane is cured.

According to the outdoor waterproof structure and method according to the present invention configured as described above, by stacking the epoxy-based primer excellent in adhesion to the floor 10 as a base layer, the adhesion of the waterproof layer to the floor 10 is improved, the phenomenon that the waterproof layer is lifted up Can be prevented.

In addition, by forming a waterproof layer by stacking a urethane having a high degree of air permeability in a multilayered manner, the moisture inherent in the bottom 10 can naturally escape to the outside, thereby more effectively preventing the waterproof layer from floating.

In addition, by the filter sand layer 50 and the plate-shaped chip layer 70 can block the sunlight double, and also by reducing the surface tension by the filter sand to remove the pinholes that may be generated by the urethane of the midpoint by any chance In addition to improving the waterproof effect, it can also delay the aging of the waterproof layer by sunlight.

According to the outdoor waterproof structure and method according to the present invention configured as described above, the adhesion to the bottom 10 by the epoxy-based primer is improved, the moisture inherent in the bottom 10 by the medium-weight urethane excellent in breathability Since it naturally escapes to the outside, the waterproof layer is not lifted, it is possible to significantly increase the durability of the waterproof layer, thereby providing a semi-permanent outdoor waterproof structure can significantly increase the interval of repair work of the waterproof layer.

In addition, due to the multiple sun protection structure by the filter sand layer 50 and the plate-shaped chip layer 70, the aging of the waterproof layer can also be delayed, and the external chip is blocked by the plate-shaped chip layer 70 from being transmitted to the waterproof layer. Since the waterproof layer is not damaged, the durability of the waterproof layer can be further improved.

In addition, by reducing the surface tension caused by the filter sand, the urethane of high viscosity can flow into the pinhole to remove the peel hole, thereby preventing water from leaking through the pinhole, thereby significantly improving the waterproof performance. Therefore, high quality buildings can be provided.

Claims (6)

An epoxy primer layer 20 laminated on various floors 10 such as a concrete floor; A first medium viscosity urethane layer 30 laminated on the epoxy primer layer; A second medium viscosity urethane layer 40 stacked on the first medium viscosity urethane layer; A filter sand layer 50 stacked on the surface of the second medium viscosity urethane layer; A third medium viscosity urethane layer 60 stacked on the filter sand layer; And, An outdoor waterproof structure comprising a; plate-like chip layer (70) laminated on the third viscosity of the urethane layer. The method of claim 1, Silica is applied to the filter sand 51 forming the filter sand layer 50, and the particle size thereof is approximately 100 mesh. The method of claim 1, The plate-like chip 71 constituting the plate-like chip layer 70 is made of plastic or segregation, the outdoor waterproof structure, characterized in that the average diameter is 3 ~ 10mm. Forming an epoxy primer layer by applying and curing an epoxy primer on various floors such as concrete floors; Forming a first medium viscosity urethane layer by applying a medium viscosity urethane on the epoxy primer layer to cure the urethane layer; Forming a second medium viscosity urethane layer and a filter sand layer by applying a second medium viscosity urethane on the first medium viscosity urethane layer, and spraying and curing the filter sand on the applied medium viscosity urethane; And, Applying a medium-weight urethane onto the filter sand layer, and sprinkling the plate-shaped chip on the applied medium-weight urethane to form a third medium viscosity urethane layer and a plate-shaped chip layer; Way. The method of claim 4, wherein Silica is applied to the filter sand, and the particle size is approximately 100 mesh. The method of claim 4, wherein The plate-like chip constituting the plate-like chip layer is made of plastic or segregation, the average diameter is 3 ~ 10mm outdoor waterproofing method.

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