KR20170088779A - Eco and water permeable block composition and manufacturing method thereof - Google Patents

Abstract

The present invention relates to an eco-friendly water-permeable block composition and a production method thereof. The eco-friendly water-permeable block composition comprises an aggregate selected at least one of natural gravel, silica, or crushed stone having the diameter of 3 to 8 mm, and a binder. The aggregate and the binder are mixed with the first weight ratio of 10 to 30:1.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an eco-permeable block composition,

The present invention relates to an environmentally friendly water permeable block composition and a method for producing the same. The present invention relates to an environmentally friendly water permeable block composition and a method for producing the same, Water permeable block composition which can have an excellent effect on excellent recycling by making it not to be detected, and a method for producing the same.

In the city center, various sidewalk blocks are used.

Conventionally, cement block (intro King Block) or other non-watertight press block is widely used. However, due to low cost of production and durability, it is not permeable to water and environment caused by drifting of waste or other waste Problems, and recycling of excellent.

In order to solve such problems, prior arts such as Korean Patent No. 10-106060, "eco permeable press block composition and press block construction method using the same"

However, although the permeable block disclosed in this prior art has an advantage of improving the permeability, the permeate through the permeable block is contaminated by the waste aggregate such as cement or waste, and the binder (adhesive) There is a problem in that it is required to be treated and a problem of soil pollution occurs.

Therefore, there is a demand for an eco-friendly water permeable block composition and a method for manufacturing the same that can prevent contamination of an excellent by the permeable block itself and have high strength and high durability.

Accordingly, a technical object of the present invention is to provide an eco-friendly water permeable block composition capable of providing high water permeability, preventing contamination of an excellent through an eco-friendly binder, having high strength and high durability, and a manufacturing method thereof .

Another object of the present invention is to provide an eco-friendly water permeable block composition and a method of the same which can prevent the backflow of the water if a plurality of block layers having different diameters are formed.

The characteristics of permeability and strength vary depending on the blending ratio of the binder and the aggregate. The combination ratio of the aggregate and the binder excellent in water permeability and strength, such as a sidewalk block, etc., is provided.

According to an embodiment of the present invention, there is provided an environmentally friendly water permeable block composition comprising at least one of natural gravel, silica sand, or crushed stone having a diameter of 3 to 8 mm and an environmentally friendly binder in an amount of 10 to 30: 1 Of the first block layer.

The environmentally friendly binder may be selected from the group consisting of an acrylic resin, a polyurethane resin, a polyester resin, a toluene diisocyanate trimer (TDI Trimer), a cyclohexylmethane diisocyanate (H12MDI), a toluene diisocyanate (TDI) A mixture of a mixture of methylene diphenyldiisocyanate (MDI), hexamethylene diisocyanate (HMDI) and polypropylene glycol (PPG), and a surfactant may be mixed.

The environmentally friendly waterproofing block is characterized in that at least one of natural gravel, silica sand, or crushed stone having a diameter of 10 to 15 mm and an environmentally friendly binder are present in the lower part of the block layer at a second weight ratio of 10 to 30: And a second block layer formed by combining the first block layer and the second block layer.

The first weight ratio may be selected to have a weight ratio of 20 to 30: 1, and the second weight ratio may be selected to have a weight ratio of 10 to 20: 1.

In order to solve the technical problem of the present invention, there is provided a method for producing an environmentally friendly water permeable block composition, which comprises mixing an aggregate and an environmentally friendly binder selected from at least one of natural gravel, silica sand or crushed stone having a diameter of 3 to 8 mm in a range of 10 to 30: A first blending process of blending the first material after the first blending process into a mold having a predetermined size, and a second block forming process of deforming the mold after the first block molding process And the eco-friendly binder is obtained through a curing curing process, wherein the eco-friendly binder is selected from the group consisting of an acrylic resin, a polyurethane resin, a polyester resin, a toluene diisocyanate trimer (TDI Trimer), cyclohexyl methane diisocyanate Cyclohexylmethane diisocyanate, H12MDI), toluene diisocyanate (TDI), methylene diphenyl diisocyanate (Methylene DiphenylDiisocyanate, MDI), hexamethylene diisocyanate (Hexamethylene Diisocyanate, HMDI) and poly with said prepared by mixing propylene glycol (PPG) mixture and a surfactant blend.

The method of manufacturing an environmentally friendly water permeable block composition according to the present invention is characterized in that at least one of natural gravel, silica sand, or crushed stone having a diameter of 10 to 15 mm and an environmentally friendly binder are preliminarily formed in the range of 10 to 30: A second blending process of blending the second material blended at a second weight ratio, and a second block molding process of inserting the second material blended through the second blending process into the mold, And inserting the first material into the upper portion of the second material.

The first weight ratio is selected to have a weight ratio of 20 to 30: 1, and the second weight ratio is selected to have a weight ratio of 10 to 20: 1.

According to the technical idea of the present invention, the water permeable block composition can provide high water permeability, thereby preventing flooding damage, environmental pollution, and deterioration of aesthetics caused by storms floating on the ground.

In addition, it is possible to provide an eco-friendly water permeable block composition having high strength and high durability that can prevent contamination of heavy metals or volatile organic compounds that may occur while passing through a block through an eco-friendly binder.

In addition, since a single aggregate can be used, the manufacturing process is very simple, and an affordable permeable block can be provided.

In addition, when a plurality of block layers having different diameters are formed, it is possible to prevent backflow of the storm.

In addition, the permeability and strength characteristics are different according to the blending ratio of the binder and the aggregate, and it is possible to provide an environmentally friendly water permeable block composition by having a blend ratio such that both the water permeability and the strength are suitable for the permeable block have.

BRIEF DESCRIPTION OF THE DRAWINGS A brief description of each drawing is provided to more fully understand the drawings recited in the description of the invention.
1 is a view showing an example of an environment-friendly water permeable block composition according to an embodiment of the present invention.
2 is a view showing an example of an environment-friendly water permeable block composition according to another embodiment of the present invention.
FIGS. 3 and 4 are views showing test reports of an environment-friendly water permeable block composition according to an embodiment of the present invention.

In order to fully understand the present invention, operational advantages of the present invention, and objects achieved by the practice of the present invention, reference should be made to the accompanying drawings and the accompanying drawings which illustrate preferred embodiments of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the preferred embodiments of the present invention with reference to the accompanying drawings. Like reference symbols in the drawings denote like elements.

1 is a view showing an example of an environment-friendly water permeable block composition according to an embodiment of the present invention.

In order to realize the environment-friendly water permeable block composition according to the embodiment of the present invention, natural stone existing in nature such as gravel (natural gravel), silica sand, or crushed stone can be used as an aggregate. It goes without saying that such a natural stone may be subjected to a washing or cleaning process in advance. In the embodiment of the present invention, natural stones are used as aggregates as described above, so that pollution of the exterior by the aggregate can be prevented.

Only natural gravel, silica sand, or crushed stone may be used to prepare the environmentally friendly waterproofing block composition according to an embodiment of the present invention, and a plurality of natural stones may be used.

In order to realize the technical idea of the present invention, the natural stone can be selected, for example, as those having a diameter of 3 to 8 mm. The larger the diameter of the natural stone, the larger the permeability, but the strength of the permeable block can be lowered. Also, the larger the diameter, the higher the ratio of the binder to be blended.

Therefore, in one embodiment of the present invention, in order to obtain proper properties in terms of permeability and strength while being easy to obtain in a natural state, in an embodiment of the present invention, an eco-friendly water permeable block composition is manufactured from a natural stone having a diameter of 3 to 8 mm Respectively. At this time, the eco-permeable block composition may form one block layer, and the one block layer may be a composition in which the natural stone and the eco-friendly binder according to the embodiment of the present invention are mixed and cured.

According to another embodiment of the present invention, an environmentally friendly water permeable block composition having a plurality of block layers is prepared using natural stones having different diameters. The first block layer may be made of natural stone having a diameter of 3 to 8 mm as described above, and the second block layer may be made of natural stone having a larger diameter. The natural stone used for the production of the second block layer may be natural stone having a diameter of 10 to 15 mm according to the embodiment of the present invention. When the eco-friendly water permeable block composition is prepared so as to have a plurality of layers, the pores of the respective block layers are different in size or structure so that the lower soil on which the eco-friendly water permeable block composition is installed has relatively low water permeability It is possible to prevent the backflow of the storm toward the upper part of the environmentally friendly water permeable block composition.

Also, by forming a plurality of layers having different water permeability and strength, the water permeability and strength of the environmentally friendly water permeable block composition can be adjusted as needed. For example, permeability and strength of the entire environmentally friendly water permeable block composition can be controlled by adjusting the mixing ratio of the second block layer in a state where the mixing ratio of the aggregate and the binder in the first block layer is fixed.

In addition, permeability and strength can be adjusted by selecting different types of natural stones used for the first block layer and the second block layer.

First Embodiment

The embodiment shown in FIG. 1 shows the result of producing an environmentally friendly water permeable block composition according to an embodiment of the present invention using only natural gravel of 3 to 8 mm. That is, an example of producing the environment-friendly water permeable block composition with only one block layer is shown.

At this time, the block layer may be mixed so that the mixing ratio of the aggregate, that is, the natural gravel and the binder, is 10 to 30: 1. The mixing ratio of the aggregate and the binder may have a great influence on the properties of the block layer and / or the entire environmentally friendly water permeable block composition.

The higher the proportion of the binder in the mixing ratio, the lower the water permeability of the block layer or the environmentally friendly water permeable block composition. This is because the rate at which the binder fills the voids between the aggregates can be increased. Because of this property, the higher the proportion of the binder, the higher the strength of the block layer.

According to the embodiment of the present invention, when the natural stone having a diameter of 3 to 8 mm is used, the characteristics of the block layer according to the mixture ratio of the natural stone, that is, the aggregate and the binder, are shown in Table 1.

Classification (aggregate: binder weight ratio) Permeability coefficient (mm / s) Bending strength (N / mm ² ) 1 to 10: 1 Less than 1.0 20 or more 10 to 20: 1 1.0 to 3.5 10.1-20 20 to 30: 1 3.5 to 12 5.5 to 10.1

<Table 1> Aggregates with 3 to 8 mm diameter aggregate: Characteristics of block layer according to binder weight ratio> The experimental results in Table 1 show that 5 samples having the same mixing ratio are prepared and the range of the measured value of each of the five samples It was carried out by way of giving.

As shown in Table 1, the higher the ratio of the binder in the mixing ratio, the lower the permeability. It can be seen that the higher the ratio of the binder is, the higher the bending strength is. The environmentally friendly water permeable block composition according to an embodiment of the present invention is selected to have a weight ratio of aggregate: binder of 20 to 30: 1 when natural stone (natural gravel) having a diameter of 3 to 8 mm is used as an aggregate. According to the criteria of KS F 4419: 2014, when the permeability coefficient is 1.0 or more, the permeability is set to 1 grade, and the bending strength is judged to satisfy the criteria when it is 4.0 or more in the case of the sidewalk and 5.0 or more in the case of the roadway to be.

Therefore, a weight ratio of 20 to 30: 1 may be selected so that the performance of permeability and bending strength are both excellent while using as few binders as possible. However, even if the aggregate and the binder are mixed at a weight ratio of 10 to 20: 1 according to the embodiment, the water permeability and the bending strength both satisfy the reference value or more, so that a weight ratio of 10 to 20: 1 may be selected according to the embodiment. As a result, according to the embodiment of the present invention, the aggregate and the binder may be mixed to have a weight ratio of 10 to 30: 1, and in a more preferred embodiment, a mixing ratio of 20 to 30: 1 may be used.

On the other hand, as described above, there has been a problem that the storm that has passed through the conventional permeable block is contaminated by aggregate and / or binder. In order to solve such a problem, an environmentally friendly binder may be used as the environmentally friendly water permeable block composition according to an embodiment of the present invention.

The environmentally friendly binder may be selected from the group consisting of an acrylic resin, a polyurethane resin, a polyester resin, a toluene diisocyanate trimer (TDI Trimer), a cyclohexylmethane diisocyanate (H12MDI), a toluene diisocyanate (TDI) A mixture of a mixture of methylene diphenyldiisocyanate (MDI), hexamethylene diisocyanate (HMDI) and polypropylene glycol (PPG), and a surfactant.

Examples of such eco-friendly binders are disclosed in Korean Patent No. 10-1522556, " Method for producing eco-friendly adhesive composition and eco-friendly adhesive composition produced thereby "filed by the inventor of the present invention. The eco-friendly binder to be applied to the present invention can be produced using the materials and / or mixing ratios disclosed in the above-mentioned registered patents. As described in detail in the above patent application, the environmentally friendly binder has excellent adhesion and no yellowing phenomenon. When the curing is accelerated, the environmentally friendly binder does not contain heavy metals or volatile organic compounds, .

Therefore, it is effective that the storm that has passed through the environment-friendly water permeable block composition according to the technical idea of the present invention is not contaminated by the binder. Further, according to the technical idea of the present invention, the aggregate is made of natural stone without using waste or cement.

Therefore, there is no need for a treatment process for purifying heavy metals or volatile organic compounds contaminated by the volatile organic compounds in order to recycle them.

In order to prepare an environmentally friendly water permeable block composition according to this embodiment, it is preferable to mix the aggregate and the binder so that the weight ratio of the aggregate and the binder is 20 to 30: 1, and then the material mixed in the mold, It can be subjected to a block molding process to apply a constant pressure. Then, after a predetermined time, the material is demolded in a mold and subjected to a curing process, whereby the environmentally friendly water permeable block composition can be produced.

Second Embodiment

2 is a view showing an example of an environment-friendly water permeable block composition according to another embodiment of the present invention. The embodiment shown in FIG. 2 illustrates an example of an environmentally friendly waterproofing block composition having a first block layer and a second block layer.

2, natural gravel having a diameter of 3 to 8 mm is used as an aggregate in the first block layer as described in the first embodiment, and a crush stone having a diameter of 10 to 15 mm is used as aggregate in the second block layer .

The first block layer may be a block layer formed by mixing the aggregate and the binder in a weight ratio of 20 to 30: 1 as described in the first embodiment.

The second block layer may be a block layer formed using natural stones having a diameter of 10 to 15 mm.

A block layer using natural stone having a smaller diameter may be formed so as to be positioned higher than in the environmentally friendly waterproofing block composition. Therefore, the problem that the permeability of the garbage or other contaminants interferes with the voids of the block layer to deteriorate the permeability may be relatively small.

 In the case of the second block layer, a mixture ratio of the aggregate and the binder may be different from that of the first block layer. According to an example, since the second block layer uses natural stone having a larger aggregate diameter, the mixing ratio may be selected such that the ratio of the binder is higher than the mixing ratio of the first block layer.

According to the embodiment of the present invention, when the natural stone having a diameter of 10 to 15 mm is used, the properties of the block layer, that is, the second block layer according to the mixing ratio of the natural stone, that is, the aggregate and the binder,

Classification (aggregate: binder weight ratio) Permeability coefficient (mm / s) Bending strength (N / mm ² ) 1 to 10: 1 Less than 2.0 15 or more 10 to 20: 1 2.0 to 7.0 7 ~ 15 20 to 30: 1 7.0 to 20 5.5 to 7

As shown in Table 2, as the ratio of the binder to the aggregate increases, the water permeability decreases as the ratio of the binder increases. It can be seen that the higher the ratio of the binder is, the higher the bending strength is. On the other hand, when the mixing ratio of the same or similar binder ratio is used in the second block layer having a larger aggregate diameter, the permeability is higher, while the bending strength is lower.

Therefore, in order to have similar permeability and flexural strength as the first block layer, the second block layer may be selected so that the ratio of the binder used in the second block layer is higher than that used in the first block layer. According to an embodiment of the present invention, in the case of the second block layer, the weight ratio of the aggregate to the binder may be 10 to 20: 1. Of course, as shown in Table 2, the aggregate and the binder may be mixed so as to have a weight ratio of 20 to 30: 1 even in the second block layer.

The binder used in forming the second block layer may also be the same eco-friendly binder as the binder used in the first block layer.

In order to produce an eco-permeable block composition having a first block layer and a second block layer, the aggregate and the binder are mixed so as to have a weight ratio of 10 to 20: 1 to form the second block layer, It is possible to carry out a block molding process in which a material blended in the mold is inserted to mold the size of the mold. And a material blended at a weight ratio of 20 to 30: 1 to form the first block layer may be inserted into the mold so as to be located on top of the material for the second block layer.

Since the first block layer and the second block layer are respectively mixed with the binder, it is not necessary to further apply a binder to bond the first block layer and the second block layer separately, and the material for the first block layer is inserted The block forming process can be performed by applying a constant pressure. After a certain period of time, the material is demoulded and cured in the mold to produce the environmentally-friendly waterproofing block composition including the first block layer and the second block layer.

Test results for the detection of heavy metals, volatile organic compounds, and other pollutants after passing water through the environmentally-friendly water permeable block composition according to the above-described Example 2 are as follows.

<Table 3. Detection of PBBs (POLYBROMINATED BIPHENYLS)> ingredient content Detection limit BROMOBIPHENYL Not detected 1 mg / kg DIBROMOBIPHENYL Not detected TRIBROMOBIPHENYL Not detected TETRABROMOBIPHENYL Not detected PENTABROMOBIPHENYL Not detected HEXABROMOBIPHENYL Not detected HEPTABROMOBIPHENYL Not detected OCTABROMOBIPHENYL Not detected NONABROMOBIPHENYL Not detected DECABROMOBIPHENYL Not detected

<Table 4. Detection of PBDEs (POLYBROMINATED DIPHENYL EHERS)> ingredient content Detection limit BROMODIPHENYL ETHER Not detected 1 mg / kg DIBROMODIPHENYL ETHER Not detected TRIBROMODIPHENYL ETHER Not detected TETRABROMODIPHENYL ETHER Not detected PENTABROMODIPHENYL ETHER Not detected HEXABROMODIPHENYL ETHER Not detected HEPTABROMODIPHENYL ETHER Not detected OCTABROMODIPHENYL ETHER Not detected NONABROMODIPHENYL ETHER Not detected DECABROMODIPHENYL ETHER Not detected

<Table 5. Detection of Heavy Metals> ingredient unit result Lead (Pb) mg / kg Not detected (detection limit 5) Cadmium (Cd) Not detected (detection limit 1) Mercury (Hg) Not detected (detection limit 1) Hexavalent chromium (Cr (VI)) Not detected (detection limit 1)

<Table 6. Detection of Volatile Organic Compound (VOC)> ingredient unit result VOC g / L Not detected (detection limit 0.01)

As can be seen from the results of <Table 3> to <Table 6>, the rainwater passing through the environment-friendly water permeable block composition according to the technical idea of the present invention is not contaminated, which is very advantageous for excellent recycling.

It is to be understood that the same effect will be obtained also in the case of Embodiment 1 using the same binder and natural stone.

FIGS. 3 and 4 are views showing test reports of an environment-friendly water permeable block composition according to an embodiment of the present invention.

FIGS. 3 and 4 show the results of testing the water permeability and flexural strength of the environmentally friendly water permeable block composition prepared in Example 2, respectively, by the Korea Institute of Construction & Living Environment Test.

As shown in FIG. 3, the environment-friendly water permeable block composition has a permeability coefficient of 11.9. Generally, when the permeability coefficient is 1.0 or more, the water permeability is set to 1 or more, so that the eco-permeable block composition according to the embodiment of the present invention has a very high water permeability.

In addition, FIG. 4 shows experimental results of five different environmental permeable block compositions prepared by the same method. As a result, as shown in FIG. 4, the flexural strength was measured from a minimum of 8.4 to a maximum of 10.1 have. Generally, in the case of the sidewall, the flexural strength of 4.0 or more satisfies the reference value, and in the case of the roadway, the flexural strength of 5.0 or more satisfies the reference value. However, the eco-permeable block composition according to the embodiment of the present invention has a very high flexural strength Can be seen.

As a result, according to the technical idea of the present invention, it is possible to provide an eco-friendly water permeable block having high water permeability and high strength by using a natural stone and an environmentally friendly binder. In addition, since it can be produced by using only natural stones and binders as described above, there is an effect that it can be manufactured very easily.

In addition, since natural stones and an environmentally friendly binder are used, there is no contamination of storm water that has passed through the environment-friendly water permeable block composition, which is highly advantageous for excellent recycling.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

Claims (7)

Wherein at least one selected from among natural gravel, silica sand, or crushed stone having a diameter of 3 to 8 mm and an eco-friendly binder each have a first block layer formed in a first weight ratio of 10 to 30: 1, Permeable block composition.
The environmental friendly binder according to claim 1,
(Meth) acrylic resin, a polyurethane resin, a polyester resin, a toluene diisocyanate trimer (TDI Trimer), a cyclohexylmethane diisocyanate (H12MDI), a toluene diisocyanate (TDI) Wherein the mixture is a mixture of a mixture of isocyanate (MDI), hexamethylene diisocyanate (HMDI) and polypropylene glycol (PPG) and a surfactant.
The eco-friendly waterproofing block according to claim 2,
Below the block layer,
Characterized in that a second block layer is formed in which the aggregate of at least one of natural gravel, silica sand, and crushed stone having a diameter of 10 to 15 mm and the environmentally friendly binder are blended at a second weight ratio of 10 to 30: 1, respectively / RTI &gt;
The method of claim 3,
The first weight ratio is selected to have a weight ratio of 20 to 30: 1,
Wherein the second weight ratio is selected to have a weight ratio of 10 to 20: 1.
A first mixing step of blending an aggregate selected from at least one of natural gravel, silica or crushed stone having a diameter of 3 to 8 mm and an environmentally friendly binder in a first weight ratio ranging from 10 to 30: 1, respectively;
A first block molding process of inserting the first material having undergone the first compounding process into a mold having a predetermined size; And
After passing through the first block forming process, the mold is demolded and cured to obtain an environment-friendly waterproof block through a curing process.
The environment-
(Meth) acrylic resin, a polyurethane resin, a polyester resin, a toluene diisocyanate trimer (TDI Trimer), a cyclohexylmethane diisocyanate (H12MDI), a toluene diisocyanate (TDI) Wherein the mixture is prepared by mixing a surfactant with a mixture of isophorone diisocyanate (MDI), hexamethylene diisocyanate (HMDI), and polypropylene glycol (PPG).
6. The method of claim 5, wherein the environment-
Before the first block molding process,
A second compounding step of mixing at least one selected from among natural gravel, silica sand, or crushed stone having a diameter of 10 to 15 mm and the environmentally friendly binder at a second weight ratio ranging from 10 to 30: 1, respectively;
And a second block molding process for inserting the second material blended through the second blending process into the mold,
The first block molding process may include:
And inserting the first material into the upper portion of the second material inserted into the mold.
The method according to claim 6,
The first weight ratio is selected to have a weight ratio of 20 to 30: 1,
Wherein the second weight ratio is selected to have a weight ratio of 10 to 20: 1.

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