KR20230004205A - Concrete slab - Google Patents

Abstract

The present invention relates to a concrete slab, and more particularly, to the concrete slab capable of simultaneously securing waterproofness and water permeability by imparting a water permeability function to a high-strength layer made of water impermeability. Therefore, the concrete slab of the present invention can improve the strength while minimizing the occurrence of efflorescence, and can be used for various purposes by varying arrangement of a permeable layer and an impervious layer according to the purpose of use, such as for pavements, walls and floors of buildings. The concrete slab of the present invention includes a water permeable lower layer and a water impervious upper layer.

Description

Concrete slab {Concrete slab}

The present invention relates to a concrete slab, and more particularly, by imparting a water-permeable function to a high-strength layer made of water-impermeability so as to secure waterproofness and water-permeability at the same time, thereby minimizing the occurrence of whitening and improving strength, It relates to a concrete slab that can be used for various purposes by varying the arrangement of the permeable layer and the impermeable layer according to the purpose of use, such as for pavements, walls and floors of buildings.

Unlike conventional impermeable pavement, permeable pavement and blocks for roads, sidewalks, bicycle paths, and walking trails have a retention effect and drainage function, so they can reduce the load of sewage and perform a flood control function, which is a natural ecosystem. It has several beneficial functions, such as contributing to protection and environment-friendly urban development and maintenance.

In particular, in rainy weather, rainwater is rapidly penetrated and removed through the permeable pavement, thereby reducing and preventing water pooling, spray and water splashing by vehicles, and slipping caused by water film, and preventing glare for drivers by diffused reflection of light in rainy weather. As it is recognized that it will also 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 using cement as a binder has been most popularly used.

However, in this case, the soluble component of cement moves to the concrete surface along with moisture and rises to the surface as white precipitate. As the air gap of the upper layer is enlarged to improve the permeability, the strength of the upper layer is weak and easily damaged, and the road block In the case of, a lot of fine dust is generated, problems such as cracks caused by a higher contraction and expansion rate than general concrete, separation of aggregates or damage to the pavement due to the spraying of calcium chloride in winter, and lower strength than general cement concrete this was pointed out

Therefore, various attempts have been made to overcome this problem. For example, in order to prevent whitening, a waterproofing agent such as stearic acid or paraffin emulsion is mixed to suppress the movement of moisture, or a polymer admixture such as acrylic emulsion is used to prevent whitening. In order to make a dense structure or prevent cracking, methods such as reinforcing polypropylene fibers and polyvinyl alcohol fibers have been tried.

However, other problems have been raised because the effect is insufficient or the polypropylene fibers are not properly bound to the permeable concrete.

In addition, a technology using a polymer resin as a binder has been proposed, but unlike cement concrete, which increases in strength over time, polymers lose strength over time due to ultraviolet rays or feng shui, so their use as exterior materials is limited. There is a need for technological development.

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

The present invention has been made to solve the above problems, and an object of the present invention is to provide a water permeability function to a high-strength layer made of water impermeability to ensure waterproofness and water permeability at the same time, thereby minimizing the occurrence of whitening and increasing strength. It is to provide a concrete slab that can be used for various purposes by changing the arrangement of the permeable layer and the impervious layer according to the purpose of use, such as for pavements, walls and floors of buildings.

In addition, another object of the present invention is to prevent moisture absorption by wood by melting waste plastic and coating waste wood while recycling waste such as waste wood and waste plastic, and to obtain natural materials such as ocher, zeolite, and illite. Another object is to provide a concrete slab that can be used in a nature-friendly way while minimizing the occurrence of environmental pollution while allowing various effects by natural materials to be expressed.

The present invention to solve these problems;

It includes a lower permeable layer formed in a plate shape of a certain thickness and an upper impermeable layer formed on top of the lower layer, wherein the upper layer has a plurality of 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 a plate shape of a certain thickness, and a water permeable upper layer formed on top of the lower layer, and a plurality of permeable lines connected to the lower end of the upper layer are formed in the upper and lower directions on the side of the lower layer. to be characterized

At this time, it is characterized in that it includes any one or more of 3 to 30 parts by volume of zeolite and 1 to 10 parts by volume of illite based on 100 parts by volume of the layer having water permeability among the lower layer and the upper layer.

In addition, it is characterized in that it further comprises any one or more of 3 to 15 parts by volume of loess and 20 to 45 parts by volume of blast furnace slag based on 100 parts by volume of the layer having water permeability among the lower layer and the upper layer.

And, the layer having water permeability among the lower layer and the upper layer is characterized in that it comprises recycled wood melt-coated with recycled plastic.

On the other hand, another embodiment of the present invention,

It is characterized in that it includes an impervious lower layer formed in a plate shape of a certain thickness, an intermediate layer formed on top of the lower layer and provided with a heat insulating material, and an impervious upper layer formed on the upper portion of the intermediate layer.

At this time, the heat insulating material is characterized in that it comprises recycled wood melt-coated with recycled plastic.

In addition, the heat insulating material further includes diatomaceous earth, and the diatomaceous earth is characterized in that it is included in 5 to 50 parts by volume based on 100 parts by volume of the middle layer.

In addition, it is characterized in that it comprises 3 to 30 parts by volume of zeolite, 1 to 10 parts by volume of illite, 3 to 15 parts by volume of loess, and 20 to 45 parts by volume of blast furnace slag based on 100 parts by volume of the entire intermediate 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 an upward and downward direction, and a plurality of permeable lines connected to the lower end of the middle layer are formed in an upward and downward direction on the side surface of the lower layer. .

In addition, at least one surface of the upper surface of the upper layer and the lower surface of the lower layer is formed with a decorative portion patterned with a curable resin or ink, and the decorative portion is cured at a temperature of 500 ° C or less or UV coated.

According to the present invention, by imparting a water permeability function to a high-strength layer made of water impermeability, it is possible to secure waterproofness and water permeability at the same time, thereby minimizing the occurrence of whitening and improving the strength, By changing the arrangement of the water permeable layer and the impervious layer according to the purpose of use, etc., it has an excellent effect that can be used for various purposes.

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 wood, and natural materials such as ocher, zeolite, and illite are used. So that various efficacies by natural substances are expressed, while minimizing the occurrence of environmental pollution and having an additional effect that can be used in a nature-friendly manner.

1 is a view showing an embodiment of a concrete slab according to the present invention.
Figure 2 shows another embodiment of a concrete slab according to the present invention.
Figure 3 (a) and (b) is a view showing another embodiment of the concrete slab according to the present invention.
Figure 4 shows 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 accompanying drawings. The same reference numerals are used for the same components in the drawings, and redundant descriptions of the same components are omitted. And, it should be understood that the present invention may be embodied in many different forms and is not limited to the described embodiments.

1 is a view showing an embodiment of a concrete slab according to the present invention, FIG. 2 is a view showing another embodiment of a concrete slab according to the present invention, and FIG. 3 (a) and (b) show this It is a view showing another embodiment of the concrete slab according to the present invention, and FIG. 4 is a view showing another embodiment of the concrete slab according to the present invention.

The present invention minimizes whitening by making the upper layer have a waterproof function, has a high-strength water-permeable slab function for pedestrian roads, and has a heat and sound insulation effect on the floor and walls of a building through resource recycling. Relates to a concrete slab (100), As shown in FIG. 1 , the embodiment may include a lower layer 110 and an upper layer 120 .

In more detail, the lower layer 110 is formed in a plate shape having a certain thickness, and may be formed to have water permeability, that is, to be well permeable, made of coarse aggregates having a diameter of 5 mm or more.

Next, the upper layer 120 is formed on top of the lower layer 110, and similarly may be formed in a plate shape having a certain thickness, and includes fine aggregates having a diameter of 2.5 mm or less to have waterproof or impervious properties, that is, water permeability. may be formed so that does not occur.

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 upward and downward directions to form the water permeable slits 112 despite the characteristics of the upper layer 120 having impermeability. It may be configured so that permeation to the lower layer 110 can be made smoothly through.

The water permeable slit 112 may be formed in plurality 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 slit 112 is the purpose of the concrete slab 110 may vary depending on

As described above, conventional concrete products mainly used a method of increasing the permeability by increasing the air gap of the upper layer to solve the whitening phenomenon, but when the air gap of the upper layer is enlarged, the strength is greatly reduced, making it difficult to use for pavement However, while there is a problem that a lot of fine dust can be generated, the present invention reduces the air gap of the upper layer 120 to improve the strength while allowing permeation through the permeable slit 112 to prevent the occurrence of whitening. It is characterized by minimizing it so that it can be used as a slab for pedestrian roads.

On the other hand, the lower layer 110 having water permeability may include any one or more of zeolite and illite. The zeolite and illite are environmentally friendly inorganic building materials whose use has recently increased. , When included in the lower layer 110, zeolite having an ion exchange ability may exhibit a water purification effect, that is, an effect of purifying permeated water, and illite having excellent deodorization performance may exhibit a deodorizing effect of permeated water.

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, with respect to 100 parts by volume of the entire lower layer 110, and the lower limit is the minimum volume part to show the above-mentioned effect. , and the upper limit considers the effect of the input amount and the resulting increase in manufacturing cost.

In addition, the lower layer 110 may further include loess and blast furnace slag, which are also eco-friendly building materials. Since loess has a purification effect as well as a deodorization and humidity control effect, the concrete slab according to the present invention is used as a building material. When used, various effects can be seen.

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

In addition, the blast furnace slag is conventionally used in the manufacture of concrete slabs, and in the present invention, 20 to 45 parts by volume of blast furnace slag may 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, which is to manufacture an eco-friendly concrete slab by utilizing waste.

That is, waste wood and waste plastic, which adversely affect the environment when burned or landfilled, can be recycled and used as an aggregate structure constituting the lower layer 110. In the case of recycled wood, since the property of absorbing water is strong, recycled plastic After dissolving, it is preferable to prevent the recycled wood from absorbing water by coating it on the surface of the recycled wood.

At this time, the recycled wood coated with the recycled plastic included in the lower layer 110 may exhibit sound and heat insulation effects.

In addition, the upper layer 120 having water impermeability may have impermeable micropores, be formed with high strength, and include fibers to improve impact resistance.

On the other hand, another embodiment of the concrete slab 200 according to the present invention may include a lower layer 210 and an upper layer 220, as in the above-described embodiment, in this embodiment, as shown in FIG. 2, the The lower layer 210 may be formed as an impermeable 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 a plate shape having a certain thickness, including fine aggregates having a diameter of 2.5 mm or less and having high strength having impermeable micro pores, and containing fibers to provide impact resistance. can be configured to improve

At this time, a plurality of water permeable lines 212 may be formed on the side surface of the lower layer 210, and the water permeable lines 212 are connected to the lower end of the upper layer 220 having water permeability so as to be formed in the upper and lower directions As a result, rainwater or the like permeated from the upper layer 220 may be configured to be discharged 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 having a predetermined thickness.

The upper layer 220 is made of coarse aggregates having a diameter of 5 mm or more and is formed to have water permeability. 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, loess and blast furnace slag may be included.

The use purpose and content of recycled wood, zeolite, illite, loess, and blast furnace slag included in the upper layer 220 melt-coated with recycled plastic are the same as those in the foregoing embodiment, so detailed descriptions thereof will be omitted.

Therefore, in the concrete slab 200 in this embodiment, since the upper layer 220 is formed as a water permeable layer, the occurrence of whitening can be reduced, and the lower layer 210 is formed as a high-strength impervious layer, so that the ability to withstand higher loads is increased. Can be used where required.

That is, in the concrete slabs 100 and 200 composed of two layers, that is, the lower layers 110 and 210 and the upper layers 120 and 220, as in the above-described embodiment and the present embodiment, the thickness of the lower layer 110 and 210 serving as a base is greater than that of the upper layer 120 and 220. It can be formed twice or more thick. When the strength of the surface, that is, the upper layers 120 and 220 is required, as in the above-described embodiment, concrete in which the upper layer 120 is formed as an impervious layer and the lower layer 110 is formed as a permeable layer. When the slab 100 may be used and the bearing capacity for the load is prioritized over the strength of the surface, as in the present embodiment, the upper layer 220 is formed as a water permeable layer, and the lower layer 210, which is relatively thick, is a high-strength impervious layer. A concrete slab 200 made of may 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 so that drainage to the lower layer 110 is made through the water permeable slit 122, , When the relatively thick lower layer 210 is formed as an impermeable layer, it is difficult to process a slit-type water permeable structure, so rainwater permeated through the permeable upper layer 220 through the permeable lines 212 formed on the four sides back can be ejected.

On the other hand, according to another embodiment of the concrete slabs (300, 300', 400) according to the present invention, it may be made of a three-layer structure of lower layers (310, 410), middle layers (320, 320', 420) and upper layers (330, 430), the lower layer 310 and 410 and the upper layers 330 and 430 are similarly formed in a plate shape having a certain thickness, but may be formed as a high-strength structure having impermeable micropores including fine aggregates having 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 of impervious layers having a relatively thin thickness, and may include fibers to improve impact resistance.

Next, the intermediate layers 320, 320', and 420 may be formed in a plate shape having a relatively thick thickness and having a water permeable structure including aggregates having a diameter of 5 mm or more, and are provided with a heat insulating material to provide heat insulation performance. Concrete slabs 300, 300' and 400 can be configured.

More specifically, as the insulator provided in the intermediate layer 320, as shown in (a) of FIG. 3, recycled wood may be included. As described above, the recycled wood is made of molten recycled plastic. By coating the surface, it is possible to prevent the recycled wood from absorbing moisture.

That is, recycled wood melt-coated with recycled plastic can be used as the heat insulator. With this configuration, waste plastic or waste wood can be recycled without incineration. Insulation effect as well as sound insulation effect can be improved.

In addition, diatomaceous earth may be used as the heat insulating material included in the intermediate layer 320', as shown in (b) of FIG. In addition, since it has excellent heat insulation, sound insulation, and deodorization effects and even has a humidity control function, various functions can be given to the concrete slab 300' when included in the middle layer 320'.

At this time, the content of the diatomaceous earth is preferably 5 to 50 parts by volume with respect to the total 100 parts by volume of the intermediate layer 320 '. It is difficult, and when the content of diatomaceous earth exceeds 50 parts by volume, the strength of the entire concrete slab 300' may decrease or the manufacturing cost may be too high.

In addition, as shown in FIG. 4, zeolite, illite, loess, and blast furnace slag may be used as the intermediate layer 420. It is known.

The intermediate layer 420 may include 3 to 30 parts by volume of zeolite, 1 to 10 parts by volume of illite, 3 to 15 parts by volume of loess, and 20 to 45 parts by volume of blast furnace slag with respect to 100 parts by volume of the entire intermediate layer 420. Since it is the same as in, a detailed description thereof will be omitted.

On the other hand, the concrete slabs 300, 300' and 400 according to this embodiment made of three layers can also sufficiently secure rigidity and bearing capacity by the lower layers 310, 410 and upper layers 330, 430 made of high-strength impervious layers, FIG. As shown in , a plurality of permeable lines 412 and permeable slits 432 may be formed in the lower layer 410 and the upper layer 430 to ensure water permeability.

That is, the upper layer 430 has a plurality of water permeable slits 432, the lower end of which is in communication with the upper part of the middle layer 420, is formed in the upper and lower directions, so that the upper water passes through the water permeable slits 432 to the middle layer 420. It is configured to be drained into, and the water permeated through the permeable middle layer 420 is discharged through the permeability 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 water permeability.

In addition, at least one surface of the upper surface of the upper layer 330 and 430 and the lower surface of the lower layer 310 and 410 may be formed with a decorative part (not shown) designed with curable resin or ink. In order to make the appearance more beautiful, additional decoration is unnecessary only by installing the concrete slabs (300, 300', 400).

In this case, surface damage can be minimized by curing the decorative part at a temperature of 500° C. or lower or being treated with UV coating, and the concrete slabs 300, 300', and 400 can be ceramicized to prevent color change.

The overall thickness, layer thickness, and horizontal and vertical sizes of the above slabs are exemplified, and the purpose of the present invention is to make a slab suitable for the purpose by applying variously varied dimensions depending on the case.

Therefore, according to the concrete slabs (100, 200, 300, 300', 400) according to the present invention as described above, the water permeability function is given to the high-strength layer made of water impermeability to ensure waterproofness and water permeability at the same time, thereby minimizing the occurrence of whitening. It can be used for various purposes by changing the arrangement of the permeable layer and impervious layer according to the purpose of use, such as pavement pavement, building wall, floor, etc., as well as recycling waste such as waste wood and waste plastic. However, it melts waste plastic and coats waste wood to prevent moisture absorption by wood, and uses natural materials such as loess, zeolite, and illite to minimize environmental pollution while allowing various effects of natural materials to be expressed. It has various advantages such as being friendly to nature and being usable.

The above-described embodiments have been described with respect to the most preferred examples of the present invention, but are not limited to the above embodiments, and the total thickness of the concrete slab, the thickness of each layer, the horizontal and vertical size, etc. may be variously modified as necessary to suit the purpose of use. It is clear to those skilled in the art that various modifications are possible within a range that does not deviate from the technical idea of the present invention, such as being able to manufacture a suitable concrete slab.

The present invention relates to a concrete slab, and more particularly, by imparting a water-permeable function to a high-strength layer made of water-impermeability so as to secure waterproofness and water-permeability at the same time, thereby minimizing the occurrence of whitening and improving strength, It relates to a concrete slab that can be used for various purposes by varying the arrangement of the permeable layer and the impermeable layer according to the purpose of use, such as for pavements, walls and floors of buildings.

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: pitching slit 212, 412: pitching line

Claims (11)

A water permeable lower layer formed in a plate shape of a certain thickness;
Including a water impervious upper layer formed on top of the lower layer,
The upper layer is a concrete slab, characterized in that a plurality of permeable slits communicating with the upper portion of the lower layer are formed in the upper and lower directions.
An impervious lower layer formed in a plate shape of a certain thickness;
Including a water permeable upper layer formed on top of the lower layer,
A concrete slab, characterized in that a plurality of permeable lines connected to the lower end of the upper layer are formed in the upper and lower directions on the side surface of the lower layer.
According to claim 1 or 2,
A concrete slab comprising at least one of 3 to 30 parts by volume of zeolite and 1 to 10 parts by volume of illite based on 100 parts by volume of the layer having water permeability among the lower layer and the upper layer.
In the third,
A concrete slab further comprising at least one of 3 to 15 parts by volume of loess and 20 to 45 parts by volume of blast furnace slag based on 100 parts by volume of the layer having water permeability among the lower layer and the upper layer.
According to claim 1 or 2,
A concrete slab, characterized in that the layer having water permeability among the lower layer and the upper layer comprises recycled wood melt-coated with recycled plastic.
An impervious lower layer formed in a plate shape of a certain thickness;
An intermediate layer formed on top of the lower layer and provided with an insulating material, and
A concrete slab comprising an impervious upper layer formed on top of the intermediate layer.
According to claim 6,
The insulating material is a concrete slab, characterized in that it comprises recycled wood melt-coated with recycled plastic.
According to claim 6,
The insulation material further includes diatomaceous earth, the concrete slab, characterized in that the diatomaceous earth is included in 5 to 50 parts by volume based on 100 parts by volume of the intermediate layer.
According to claim 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 loess, and 20 to 45 parts by volume of blast furnace slag based on 100 parts by volume of the entire intermediate layer.
According to claim 6,
In the upper layer, a plurality of permeable slits communicating with the upper portion of the middle layer are formed in the upper and lower directions,
A concrete slab, characterized in that on the side of the lower layer, a plurality of permeable lines connected to the lower end of the middle layer are formed in the upper and lower directions.
According to claim 6,
At least one of the upper surface of the upper layer and the lower surface of the lower layer is formed with a decorative portion patterned with curable resin or ink,
The decorative part is a concrete slab, characterized in that cured or UV coated at a temperature of 500 ℃ or less.

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