KR102581691B1 - Concrete slab - Google Patents

Abstract

The present invention relates to a concrete slab, and more specifically, to provide a water permeability function to a high-strength layer made of impermeability to simultaneously secure waterproofness and water permeability, thereby minimizing the occurrence of efflorescence and improving strength. This relates to a concrete slab that can be used for various purposes by varying the arrangement of the permeable layer and impermeable layer depending on the purpose of use, such as sidewalk use, building walls, and floors.

Description

Concrete slab {Concrete slab}

The present invention relates to a concrete slab, and more specifically, to provide a water permeability function to a high-strength layer made of impermeability to simultaneously secure waterproofness and water permeability, thereby minimizing the occurrence of efflorescence and improving strength. This relates to a concrete slab that can be used for various purposes by varying the arrangement of the permeable layer and impermeable layer depending on the purpose of use, such as sidewalk use, building walls, and floors.

Unlike existing non-permeable pavement, permeable pavement and blocks for driveways, sidewalks, bicycle paths, walking paths, etc. have a retention effect and drainage function, so they can reduce the sewage load and perform a flood control function in the natural ecosystem. It has many beneficial functions, including contributing to protection and environmentally friendly urban development and maintenance.

In particular, in rainy weather, rainwater quickly penetrates and is removed through the permeable packaging material, thereby reducing and preventing water retention, spray and water splashing from vehicles, and slipping due to aquaplaning, and preventing glare for drivers due to diffuse reflection of lights in rainy weather. As it has been recognized that it will help prevent traffic accidents by contributing to traffic accidents, the demand for the application of permeable pavement has increased, and research and development on the structure and materials of permeable pavement have also been actively conducted.

In Korea, permeable concrete technology, which mainly uses cement as a binder, has been most popularly used.

However, in this case, the soluble components of cement move to the surface of the concrete along with moisture, causing efflorescence, which rises to the surface as white precipitates. As the pores of the upper layer are enlarged to improve water permeability, the strength of the upper layer is weak and easily damaged, and the driveway block In the case of concrete, it generates a lot of fine dust and has problems such as cracking caused by a higher expansion and contraction rate than regular concrete, separation of aggregates or damage to the pavement due to the spraying of calcium chloride in winter, and lower strength compared to regular cement concrete. This was pointed out.

Therefore, several attempts have been made to overcome this problem. For example, to prevent whitening, the movement of moisture is suppressed by mixing waterproofing agents such as stearic acid and paraffin emulsion, or by using polymer admixtures such as acrylic emulsion. In order to create a dense structure or prevent cracking, methods such as reinforcing polypropylene fibers and polyvinyl alcohol fibers have been attempted.

However, other problems were raised as the effect was insufficient or the polypropylene fibers were not properly bonded to the permeable concrete.

In addition, a technology using polymer resin as a binder has been proposed, but unlike cement concrete, whose strength increases over time, polymer's strength decreases over time due to ultraviolet rays or wind and water, so its use as an exterior material is limited. Technology development is needed.

Korean Patent No. 10-1120108 Korean Patent No. 10-2190961

The present invention was devised to solve the above-described problems. The purpose of the present invention is to provide water permeability to an impermeable high-strength layer to ensure both waterproofness and water permeability, thereby minimizing the occurrence of efflorescence and increasing strength. It provides a concrete slab that can be used for various purposes by varying the arrangement of the permeable layer and impermeable layer depending on the purpose of use, such as sidewalk use, building walls, and floors.

Another object of the present invention is to prevent moisture absorption by the wood by melting the waste plastic and coating the waste wood while recycling waste such as waste wood and waste plastic, and to prevent moisture absorption by the wood and to remove natural materials such as red clay, zeolite, and illite. Another purpose is to provide a concrete slab that can be used in an eco-friendly way while minimizing the occurrence of environmental pollution while enabling the various effects of natural substances to be expressed.

The present invention to solve these problems;

It includes a permeable lower layer formed in the shape of a plate of a certain thickness, and an impervious upper layer formed on top of the lower layer, wherein the upper layer has a plurality of water permeable slits communicating with the upper part of the lower layer formed in the upper and lower directions. do.

In addition, another embodiment of the present invention,

It includes an impermeable lower layer formed in the shape of a plate of a certain thickness, and a permeable upper layer formed on top of the lower layer, and on the side of the lower layer, a plurality of permeable lines connected to the bottom of the upper layer are formed in the upward and downward directions. It is characterized by

At this time, it is characterized in that it contains at least one of 3 to 30 parts by volume of zeolite and 1 to 10 parts by volume of illite with respect to 100 parts by volume of the water permeable layer among the lower layer and the upper layer.

In addition, it is characterized in that it further includes at least 3 to 15 parts by volume of red clay and 20 to 45 parts by volume of blast furnace slag with respect to 100 parts by volume of the water-permeable layer among the lower layer and the upper layer.

In addition, the water-permeable layer among the lower layer and the upper layer is characterized in that it contains recycled wood melt-coated with recycled plastic.

Meanwhile, another embodiment of the present invention is,

It is characterized by comprising an impermeable lower layer formed in the shape of a plate of a certain thickness, a middle layer formed on the upper part of the lower layer and provided with an insulating material, and an impermeable upper layer formed on the upper part of the middle layer.

At this time, the insulation material is characterized in that it includes recycled wood melt-coated with recycled plastic.

In addition, the insulation material further includes diatomaceous earth, wherein the diatomaceous earth is included in an amount of 5 to 50 parts by volume per 100 parts by volume of the middle layer.

In addition, the middle layer is characterized in that it contains 3 to 30 parts by volume of zeolite, 1 to 10 parts by volume of illite, 3 to 15 parts by volume of red clay, and 20 to 45 parts by volume of blast furnace slag for a total of 100 parts by volume of the middle layer.

In addition, the upper layer is characterized in that a plurality of water-permeable slits communicating with the upper part of the middle layer are formed in the upper and lower directions, and on the side of the lower layer, a plurality of water-permeable lines connected to the lower end of the middle layer are formed in the upper and lower directions. .

Additionally, a decorative portion designed with curable resin or ink is formed on at least one of the upper surface of the upper layer and the lower surface of the lower layer, and the decorative portion is cured at a temperature of 500° C. or lower or treated with UV coating.

According to the present invention, by imparting a water permeability function to a high-strength layer made of impermeability, waterproofing and water permeability can be secured at the same time, thereby minimizing the occurrence of efflorescence and improving strength. It has an excellent effect of allowing it to be used for various purposes by varying the arrangement of the permeable layer and impermeable layer depending on the purpose of use.

In addition, according to the present invention, while recycling waste such as waste wood and waste plastic, the waste plastic is melted and the waste wood is coated to prevent moisture absorption by the wood, and natural materials such as red clay, zeolite, and illite are used. This allows various effects from natural substances to be expressed, while minimizing environmental pollution and having the additional effect of being able to be used in an eco-friendly manner.

1 is a diagram showing an example of a concrete slab according to the present invention.
Figure 2 is a view showing another embodiment of a concrete slab according to the present invention.
Figures 3 (a) and (b) are diagrams showing another example of a concrete slab according to the present invention.
Figure 4 is a view showing another embodiment of a concrete slab according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the attached drawings. The same reference numerals are used for the same components in the drawings, and duplicate descriptions for the same components are omitted. Additionally, it should be understood that the present invention can be implemented in many different forms and is not limited to the described embodiments.

Figure 1 is a diagram showing an embodiment of a concrete slab according to the present invention, Figure 2 is a diagram showing another embodiment of a concrete slab according to the present invention, and Figures 3 (a) and (b) are the present invention. It is a drawing showing another example of a concrete slab according to the invention, and Figure 4 is a drawing showing another example of a concrete slab according to the present invention.

The present invention relates to a concrete slab (100) that minimizes efflorescence by ensuring that the upper layer has a waterproof function, has a high-strength permeable slab function for sidewalks, and has a heat-insulating and sound-proofing effect on the floor and walls of a building through resource recycling. One embodiment may include a lower layer 110 and an upper layer 120, as shown in FIG. 1 .

In more detail, the lower layer 110 is formed in the shape of a plate with a certain thickness, and can be formed of coarse aggregates with a diameter of 5 mm or more to have water permeability, that is, to ensure good water permeability.

Next, the upper layer 120 is formed on top of the lower layer 110, and can be formed in a plate shape with a certain thickness, and includes fine aggregates with a diameter of 2.5 mm or less to be waterproof or impervious, that is, permeable. It can be formed so that it does not happen.

At this time, in the upper layer 120, a plurality of water permeable slits 112 communicating with the upper part of the lower layer 110 are formed in the upper and lower directions, so that despite the impervious nature of the upper layer 120, the water permeable slits 112 are formed. It can be configured to allow smooth water permeation to the lower layer 110.

The water permeable slits 112 can be formed in large numbers at regular intervals to have a length of about 20 to 40 mm and a width of about 5 mm. The length and width of the water permeable slits 112 are determined by the purpose of use of the concrete slab 110. It may vary depending on.

As mentioned above, conventional concrete products mainly used a method of improving water permeability by enlarging the pores of the upper layer to eliminate the whitening phenomenon. However, if the pores of the upper layer are enlarged, the strength is greatly reduced and it is difficult to use it for sidewalks. However, while there is a problem in that a lot of fine dust may be generated, the present invention improves the strength by reducing the voids of the upper layer 120 and prevents the occurrence of whitening by allowing water permeation through the water permeation slit 112. It is characterized by being minimized so that it can be used as a slab for footpaths.

Meanwhile, the lower layer 110 having water permeability may include one or more of zeolite and illite, which are eco-friendly inorganic building materials whose use has been increasing recently. , Zeolite with ion exchange ability, when included in the lower layer 110, can show a water purification effect, that is, an effect of purifying the water being permeated, and illite, which has excellent deodorizing performance, can show a deodorizing effect on the water being permeated.

At this time, the zeolite and illite may be included in an amount of 3 to 30 parts by volume and 1 to 10 parts by volume, respectively, for 100 parts by volume of the entire lower layer 110, and the lower limit is the minimum volume part to achieve the above-mentioned effect. The upper limit takes into account the effect of the amount input and the resulting increase in manufacturing costs.

In addition, the lower layer 110 may further include red clay and blast furnace slag, which are eco-friendly building materials. Red clay not only has a purifying effect, but also has a deodorizing and humidity controlling effect, so the concrete slab according to the present invention can be used as a building material. When used, it can have various effects.

The red clay may be included in an amount of 3 to 15 parts by volume for 100 parts by volume of the entire lower layer 110, and the reason is the same as the case of zeolite and illite described above.

In addition, the blast furnace slag has been conventionally used in the production of concrete slabs, and in the present invention, 20 to 45 parts by volume of blast furnace slag can be used for 100 parts by volume of the entire lower layer 110.

In addition, the lower layer 110 may further include recycled wood melt-coated with recycled plastic, in order to manufacture an eco-friendly concrete slab by utilizing waste.

In other words, waste wood and waste plastic, which have a negative impact on the environment when burned or landfilled, can be recycled and used as an aggregate structure that constitutes the lower layer 110. Since recycled wood has a strong property of absorbing water, recycled plastic can be used. It is desirable to prevent the recycled wood from absorbing water by dissolving it and then coating it on the surface of the recycled wood.

At this time, recycled wood coated with recycled plastic included in the lower layer 110 can exhibit soundproofing and thermal insulation effects.

In addition, the upper layer 120, which has impermeable characteristics, has impermeable micropores, is formed with high strength, and may be configured to improve impact resistance by including fibers.

Meanwhile, another embodiment of the concrete slab 200 according to the present invention may include a lower layer 210 and an upper layer 220, similar to the above-described embodiment. In the present embodiment, as shown in FIG. 2, the The lower layer 210 may be formed as an impervious layer, and the upper layer 220 may be formed as a water-permeable layer.

In more detail, the lower layer 210 may be formed in the shape of a plate with a certain thickness. It contains fine aggregates with a diameter of 2.5 mm or less, is formed to have high strength with impermeable micropores, and contains fibers to provide impact resistance. It can be configured to improve.

At this time, a plurality of water permeable lines 212 may be formed on the side of the lower layer 210, and the water permeable lines 212 are connected to the bottom of the upper layer 220, which has water permeability, and are formed in the upward and downward directions. As a result, it can be configured to discharge rainwater permeated from the upper layer 220 through the permeable line 212.

Next, the upper layer 220 is a layer formed on top of the lower layer 210 and may be formed in a plate shape with a certain thickness.

The upper layer 220 is made of coarse aggregate with a diameter of 5 mm or more and is formed to have water permeability, and like the lower layer 110 having water permeability in the above-described embodiment, recycled wood melt-coated with recycled plastic, zeolite, One or more of illite, red clay, and blast furnace slag may be included.

Since the purpose and content of recycled wood, zeolite, illite, red clay, and blast furnace slag melt-coated with recycled plastic included in the upper layer 220 are the same as the above-described embodiment, detailed description thereof will be omitted.

Therefore, the concrete slab 200 in this embodiment can reduce the occurrence of whitening phenomenon because the upper layer 220 is formed as a permeable layer, and has the ability to withstand higher loads by forming the lower layer 210 as a high-strength impermeable layer. Can be used where required.

That is, as in the above-described embodiment and the present embodiment, the concrete slab 100,200 composed of two layers, that is, the lower layer 110,210 and the upper layer 120,220, has a thickness of the lower layer 110,210, which is the base, compared to the upper layer 120,220. It can be formed more than twice as thick, and when the strength of the surface, that is, the upper layers 120 and 220, is required, as in the above-described embodiment, the upper layer 120 is formed as an impermeable layer and the lower layer 110 is formed as a permeable layer. When the slab 100 can be used and load bearing capacity is prioritized over surface strength, as in the present embodiment, the upper layer 220 is formed as a permeable layer, and the relatively thick lower layer 210 is a high-strength impermeable layer. A concrete slab 200 made of can be used.

In addition, when the relatively thin upper layer 120 is formed as an impermeable layer, a water permeable slit 122 is formed in the upper layer 120 to allow drainage to the lower layer 110 through the water permeable slit 122. When the relatively thick lower layer 210 is formed as an impervious layer, it is difficult to fabricate a slit-shaped water permeable structure, so rainwater is permeated through the permeable upper layer 220 through the permeable lines 212 formed on the four sides. etc. can be discharged.

Meanwhile, according to another embodiment of the concrete slab (300, 300', 400) according to the present invention, it may be composed of a three-layer structure of a lower layer (310, 410), a middle layer (320, 320', 420), and an upper layer (330, 430), where the lower layer (310,410) and the upper layers (330,430) are similarly formed in a plate shape with a certain thickness, but may be formed into a high-strength structure having impermeable micropores by including fine aggregates with a diameter of 2.5 mm or less.

That is, the lower layers 310 and 410 and the upper layers 330 and 430 may be formed as an impermeable layer with a relatively thin thickness, and may include fibers to improve impact resistance.

Next, the intermediate layers (320, 320', 420) may be formed in the shape of a relatively thick plate of a certain thickness, composed of a water-permeable structure containing aggregates with a diameter of 5 mm or more, and provided with an insulating material to provide thermal insulation performance. Concrete slabs (300, 300'400) can be constructed.

In more detail, the insulating material provided in the intermediate layer 320 may include recycled wood, as shown in (a) of FIG. 3, and the recycled wood is made by melting recycled plastic as described above. By coating the surface, recycled wood can be prevented from absorbing moisture.

In other words, recycled wood melt-coated with recycled plastic can be used as the insulation material. This configuration not only has an environmentally friendly effect because waste plastic or waste wood can be recycled without incineration, but also the concrete slab 300 It is possible to improve not only the insulation effect but also the soundproofing effect.

In addition, as shown in (b) of FIG. 3, diatomaceous earth may be used as an insulating material included in the intermediate layer 320'. The diatomaceous earth is a superporous material and is light, so it can reduce the overall weight of the concrete slab 300'. In addition, it has excellent insulation, soundproofing, and deodorizing effects and even has a humidity control function, so when included in the middle layer (320'), various functions can be given to the concrete slab (300').

At this time, the content of the diatomaceous earth is preferably 5 to 50 parts by volume for a total of 100 parts by volume of the middle layer 320'. If the content of the diatomaceous earth is less than 5 parts by volume, the various effects of the diatomaceous earth described above are not properly expressed. It is difficult, and if the content of diatomaceous earth exceeds 50 parts by volume, there is a risk that the overall strength of the concrete slab 300' will be reduced or the manufacturing cost will be too high.

In addition, as shown in FIG. 4, zeolite, illite, red clay, and blast furnace slag may be used as the intermediate layer 420. In addition to the efficacy in the above-described embodiments, the zeolite, illite, and red clay have excellent thermal insulation effects. It is known that

For a total of 100 parts by volume of the intermediate layer 420, 3 to 30 parts by volume of zeolite, 1 to 10 parts by volume of illite, 3 to 15 parts by volume of red clay, and 20 to 45 parts by volume of blast furnace slag may be included, which is the same as the above-described embodiments. Since it is the same as in , detailed description thereof will be omitted.

Meanwhile, the concrete slab (300, 300', 400) according to the present embodiment, which consists of three layers, can also ensure sufficient rigidity and bearing capacity by the lower layers (310, 410) and upper layers (330, 430) made of a high-strength impermeable layer, Figure 4 As shown, a plurality of water permeability lines 412 and water permeability slits 432 may be formed in the lower layer 410 and the upper layer 430 to ensure water permeability.

That is, in the upper layer 430, a plurality of water permeable slits 432 are formed in the upper and lower directions, the lower part of which communicates with the upper part of the middle layer 420, so that water in the upper part flows into the middle layer 420 through the water permeable slits 432. It is configured to drain, and the water permeated through the permeable middle layer 420 is discharged through the permeable line 412 formed in the lower layer 410, even in the presence of the high-strength upper layer 430 and lower layer 410, which are impermeable layers. Nevertheless, the concrete slab 400 is configured to ensure sufficient permeability.

Additionally, a decorative portion (not shown) designed with curable resin or ink may be formed on at least one of the upper surfaces of the upper layers 330 and 430 and the lower surfaces of the lower layers 310 and 410, and the decorative portions may be formed on the concrete slabs 300, 300', and 400. This is to make the exterior more beautiful, so that no additional decoration is needed just by installing the concrete slabs (300, 300', 400).

At this time, the decoration part can be cured at a temperature of 500°C or lower or treated with UV coating to minimize surface damage, and the concrete slabs 300, 300', and 400 can be ceramicized to prevent color changes.

The overall thickness, layer thickness, and horizontal and vertical sizes of the slab above are examples, and the goal of the present invention is to create a slab suitable for the purpose by applying dimensions that vary depending on the case.

Therefore, according to the concrete slabs (100, 200, 300, 300', 400) according to the present invention as described above, the occurrence of efflorescence is minimized by simultaneously securing waterproofness and water permeability by imparting a water permeability function to the high-strength layer made of impermeability. In addition, it can be used for various purposes by varying the arrangement of the permeable layer and impermeable layer depending on the purpose of use, such as sidewalk use, building walls, and floors, and recycling waste such as waste wood and waste plastic. At the same time, waste plastic is melted and waste wood is coated to prevent moisture absorption by the wood, and natural materials such as red clay, zeolite, and illite are used to demonstrate various effects of natural materials while minimizing environmental pollution. It has various advantages such as being eco-friendly and usable.

The above-described embodiments describe the most preferred examples of the present invention, but are not limited to the above embodiments, and the overall thickness of the concrete slab, the thickness of each layer, the horizontal and vertical sizes, etc. can be variously modified as needed to suit the purpose of use. It is clear to those skilled in the art that various modifications are possible without departing from the technical spirit of the present invention, such as producing a suitable concrete slab.

The present invention relates to a concrete slab, and more specifically, to provide a water permeability function to a high-strength layer made of impermeability to simultaneously secure waterproofness and water permeability, thereby minimizing the occurrence of efflorescence and improving strength. This relates to a concrete slab that can be used for various purposes by varying the arrangement of the permeable layer and impermeable layer depending on the purpose of use, such as sidewalk use, building walls, and floors.

100, 200, 300, 300', 400: Concrete slab
110, 210, 310, 410: lower layer
120, 220, 330, 430: Upper layer 320, 320', 420: Middle layer
122, 432: pitcher slit 212, 412: pitcher line

Claims (11)

delete delete delete delete delete An impermeable lower layer and upper layer formed in the shape of a plate of a certain thickness including fine aggregate and fiber with a diameter of 2.5 mm or less,
It is made of a water-permeable structure containing aggregates with a diameter of 5 mm or more and an insulating material, and includes an intermediate layer formed in the shape of a plate of a certain thickness between the lower layer and the upper layer,
In the upper layer, a plurality of water-permeable slits communicating with the upper part of the middle layer are formed in the upper and lower directions,
On the side of the lower layer, a plurality of permeable lines connected to the bottom of the middle layer are formed in the upper and lower directions,
A concrete slab characterized in that the insulation material includes recycled wood melt-coated with recycled plastic and is configured to improve eco-friendliness and soundproofing and thermal insulation effects.
delete According to clause 6,
The insulation material further includes diatomaceous earth, wherein the diatomaceous earth is contained in an amount of 5 to 50 parts by volume per 100 parts by volume of the middle layer.
According to clause 6,
A concrete slab comprising 3 to 30 parts by volume of zeolite, 1 to 10 parts by volume of illite, 3 to 15 parts by volume of red clay, and 20 to 45 parts by volume of blast furnace slag for a total of 100 parts by volume of the intermediate layer.
delete According to clause 6,
A decorative portion designed with curable resin or ink is formed on at least one of the upper surface of the upper layer and the lower surface of the lower layer,
A concrete slab, characterized in that the decoration part is cured at a temperature of 500 ° C or lower or treated with UV coating.