KR20090095094A - Block and the manufacturing of the same - Google Patents

Abstract

A water-permeable loess block and a manufacturing method thereof are provided to improve permeability and increase the rigidity of products. A water-permeable loess block(2) comprises a base layer section, and a surface layer section. The base layer section(10) has air gaps by mixing cement, crushed coarse aggregate(40) and loess(30). The surface layer section(20) is formed at one side of the base layer section and has air gaps by mixing white cement, pigment, dolomite mill coat(50) and the loess. A manufacturing method of the water-permeable loess block comprises: a step for injecting mixture into a mold of a vibration pressing molding device and pressure-molding the base layer section; and a step of secondly pressure-molding the surface layer section with vibration.

Description

 Permeable ocher block and its manufacturing method {Block and the manufacturing of the same}

The present invention relates to a water-permeable ocher block and a method for manufacturing the same, and in particular, a permeable structure consisting of a base layer portion in which crushed coarse aggregate and loess are mixed with each other to form voids, and a dolomite milk coat and loess mixed to form voids. The present invention relates to a castle ocher block and a preparation method thereof.

Generally, a permeable block is a product installed with the purpose of protecting the natural ecosystem and preventing the flooding of rivers by supplying rainwater and the like through the pavement to the ground, and refers to a product in which the permeable concrete is blocked.

Such a permeable block was conventionally manufactured using cement and basic aggregate, and nowadays, various products are being developed in accordance with the trend of diversifying consumer demand.

There is also known a method for producing environmentally friendly blocks using soil such as loess, clay, red soil, etc. as a block manufacturing material.

In particular, ocher has a property of purifying groundwater flowing into the ground because it plays a role of trapping harmful substances such as heavy metals produced when the rock is weathered.

In addition, loess has recently been found to neutralize as the acid rain, which is a problem, also reacts with soil and rocky minerals as they pass through the soil layer.

Thus, ocher is an important resource that we must conserve and use effectively because it has the function of purifying the natural environment and promoting human health.

 Permeable blocks have been developed in various products to suit the purpose and characteristics of the quality. Products that have a beautiful surface shape using fine grains, products with a rough surface shape using granules, and natural stones by protruding Exposed color on the surface as it is, products that exhibit natural beauty.

Among the existing products, the product that protrudes natural stone on the surface is formed by mixing cement, water, etc. with natural stone to form a block of general concrete without voids, and then spraying the upper part with spray to protrude natural stone. The block was prepared.

However, the permeable block prepared by this method has a problem in forming voids because the batch process is performed without separating the layers, and the ratio of the natural stones exposed on the surface is low, and there are many disadvantages in saving natural beauty.

Various studies have been conducted to compensate for this problem, among which Patent No. 10-0692143 has an effective permeability as a permeable ocher block, while the far infrared is emitted as an environment-friendly, especially if the loess is included The present invention proposes a method of optimizing the texture and color of the surface, and provides a method of manufacturing a permeable block having excellent texture and physical properties on the top surface of the ocher block while maintaining excellent permeability even when the ocher block surface is coated.

However, the permeable ocher block according to the prior art uses 4 to 5 mm of silica sand and a small amount of loess as the base material in the base part, so that no air gap is formed when the base part is formed. There is a problem that can not play a role as a yellow pitcher block having the same pitcher function.

In addition, the conventional permeable ocher block has a problem that the permeability is significantly lowered because the particles of silica sand have a small pore formation, so that the pores are added to the structure to block the pores.

The present invention was devised to solve the above problems of the prior art, by using a thick coarse aggregate in the base portion to form a lot of air gaps in the base portion to significantly increase the permeability, the coarse aggregate is mixed with the coarse coarse aggregate ocher It is an object of the present invention to provide a permeable ocher block which increases the strength of the product by increasing the bonding force between the two.

Another object of the present invention is to provide an environmentally friendly permeable ocher block that can be protected from the acid rain is neutralized by the soil when the rain water is passed through the ocher block.

It is another object of the present invention to provide a method for producing a permeable ocher block which can easily and quickly produce the permeable ocher block.

The water-permeable ocher block according to the present invention for solving the above problems is formed on one side of the base portion and the base layer portion having a void by mixing cement, crushed coarse aggregate and ocher, and the back cement, pigment and dolomite mill coat And ocher are mixed to include a surface layer portion having voids.

The surface layer portion, the weight percent of the white cement, the loess, the dolomite wheat coat, the pigment is 14 to 20% of the back cement, 68 to 80% of the dolomite wheat coat, 5 to 10% of the loess, It consists of 1-2% of pigment.

        The crushed coarse aggregate is 6 to 13mm is used to form the pores of the appropriate size.

The base portion comprises the weight percent of the cement, the coarse aggregate and the ocher, 10 to 18% of the cement, 72 to 85% of the coarse aggregate, and 5 to 10% of the loess.

In the method for producing a water-permeable ocher block according to the present invention, 10 to 18% of cement and 72 to 85% of coarse aggregate of 6 to 13 mm and 5% to 10% of ocher powder are added and mixed with water and a mixed material, A base part forming step of applying pressure molding to the mold of the vibration pressing machine; Mix and mix water and admixture with the weight of 14 to 20% of white cement, 68 to 80% of dolomite mill coat of # 12 to 24, 5 to 10% of ocher powder, and 1 to 2% of pigment. It includes a surface layer forming step.

The base part forming step may include a base part mixing step of adding and mixing water and a mixed material in a weight% of 10 to 18% of cement, 72 to 85% of coarse aggregate, and 5 to 10% of ocher powder; It includes a first vibration pressure molding process of pressing the base material mixture mixed in the base material mixing step into the mold of the vibration pressure molding machine to perform pressure molding.

The surface layer forming step may be performed by mixing the surface layer with 14% to 20% of the cement and 68% to 80% of the dolomite mill coat, 5% to 10% of the ocher powder, and 1% to 2% of the pigment by adding water and an admixture. ; And a second vibration pressure forming process of supplying the surface layer mixture mixed in the surface layer mixing process to one surface of the first vibration pressing molded base part to perform secondary vibration pressure molding.

        The permeable ocher block according to the present invention is formed on one side of the base layer having voids by mixing cement, crushed coarse aggregate, and ocher, and formed on one surface of the base layer, and having a void by mixing white cement, pigment, dolomite mill coat and ocher. Including the surface layer, because the pores of the base portion is high by the crushed coarse aggregate, the permeability is remarkably high, and the crushed coarse aggregate is coated with the ocher powder, there is an advantage to increase the strength of the product.

In addition, by adding water and admixture in the base layer portion by weight percent of 72 to 85% of the coarse aggregate and 5 to 10% of the ocher powder, there is an advantage that the porosity is high and the flexural strength is sufficiently secured.

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

1 is a perspective view of a water-permeable ocher block according to the present invention, Figure 2 is a flow chart of a method for producing a water-permeable ocher block according to the present invention.

 As shown in FIG. 1, the permeable ocher block 2 according to the present invention includes a base portion 10 having a void by mixing cement (not shown), crushed coarse aggregate 40, and ocher 30, and It is formed on one surface of the base layer portion 10, the back cement (not shown) and the pigment (not shown), dolomite mill coat 50 and the ocher 30 is mixed with a surface layer portion 20 having a void, the The base layer portion 10 and the surface layer portion 20 is formed in a double structure.

Here, the dolomite mill coat 50 is that of # 12 ~ 24 to form a pore of the appropriate size.

The surface layer 20 is the weight percent of the back cement (not shown), the loess 30, the dolomite mill coat 50, the pigment (not shown), the back cement is 14 to 20%, the dolomite The milk coat 50 is 68 to 80%, the loess 30 is 5 to 10%, the pigment (not shown) 1 to 2%.

        The crushed coarse aggregate 40 is 6 to 13mm is used to form a pore of the appropriate size.

The base portion 10 is the weight (%) of the cement (not shown), the crushed coarse aggregate 40 and the ocher 40, 10 to 18% of the cement (not shown) and the crushed coarse aggregate (40) ) 72 to 85%, and 5 to 10% of the loess (30).

As shown in Figure 2, the method for producing a water-permeable ocher block according to the present invention is water and water by weight of 72 to 85% of crushed coarse aggregate of 10 to 18% and 5 to 13mm of cement and 5 to 10% of ocher powder. Adding and mixing the admixture, and putting the mold into the mold of the vibrating pressure molding machine, and forming the base layer portion by pressure molding; (S1) (S2)

 Mix and mix water and admixture with the weight of 14 to 20% of white cement, 68 to 80% of dolomite mill coat of # 12 to 24, 5 to 10% of ocher powder, and 1 to 2% of pigment. It characterized in that it comprises a surface layer forming step (S3) (S4).

Looking at the action of the water-permeable ocher block of the present invention configured as described above are as follows.

Referring to FIG. 1, the water on the upper surface of the permeable ocher block 2 flows toward the lower side of the surface layer part while passing through the pores of the surface layer part 20, and when the water is an acid rain, the acid rain is the ocher 30 and the dolomite mill. The coat 50 contacts the upper surface of the mixed surface layer portion 20, and the acid rain flows downward through the surface layer portion 20 while passing through the pores of the surface layer portion 20.

At this time, the acid rain is primarily neutralized by the calcium oxide (CaO ₂ ) and magnesium oxide (MgO ₂ ) components of the dolomite milk coat.

On the other hand, the water passing through the surface layer portion 20 passes through the surface layer portion 20 and passes through the pores of the base layer portion 2 flows toward the lower side of the base layer portion 10, which is primarily in the surface layer portion 10 The neutralized acid rain is neutralized secondary by the ocher 30 of the base portion 10.

That is, the acid rain is neutralized for two times while passing through the dust permeable ocher block (2), and flows to the ground, and purifies the groundwater because it plays a role of catching harmful substances such as heavy metals generated when the rock is weathered.

As shown in Figure 2, the method for producing a water-permeable ocher block according to the present invention, water by weight of 10 to 18% cement and 72 to 85% coarse aggregate of 5 to 13mm and 5 to 10% ocher powder And a base layer forming step (S1) (S2) of adding and mixing a mixed material, and putting the mixed material into the mold of the vibrating pressure molding machine and performing pressure molding; Mix and mix water and admixture with the weight of 14 to 20% of white cement, 68 to 80% of dolomite mill coat of # 12 to 24, 5 to 10% of ocher powder, and 1 to 2% of pigment. It includes a surface layer forming step (S3) (S4).

The base portion forming step (S1) (S2) is a base portion mixing process of mixing by adding water and admixture in the weight percent of 10 to 18% cement, 72 to 85% crushed aggregate and 5 to 10% ocher powder (S1) Then, the base layer mixture mixed in the base layer mixing step is subjected to a first vibration press molding process of pressing and molding the mold of the vibrating pressure molding machine.

The surface layer forming step (S3) (S4) is added to the water and admixture in the weight percent of 14 to 20% of the white cement, 68 to 80% of the dolomite mill coat, 5 to 10% of the ocher powder and 1 to 2% of the pigment Surface layer mixing process is performed to mix (S3). Then, a second vibration pressure molding process of supplying the surface layer mixture mixed in the surface layer portion mixing step to the second vibration pressure molding is performed on one surface of the first vibration pressure molded substrate.

Table 1 shows the porosity and the bending strength of the permeable ocher blocks prepared according to the comparative examples and examples of the permeable ocher blocks.

TABLE 1

Classification (Standard Value) Comparative Example 1 Comparative Example 2 Example 1 Example 2  Porosity (more than 10%) 9 7 19 18  Flexural strength (3.0N / mm2) 3.5 3.7 3.7 4.0

In Comparative Example 1, water and a mixed material were mixed at a ratio of 15% by weight of cement, 80% by weight of 4 to 5mm silica sand, 3% by weight of pigment, and ocher% by weight to form a base portion by primary vibrational pressure molding to form a base layer, and 15% by weight of cement. 80% by weight, 1 to 2.5mm silica sand, 3% by weight pigment, 2% by weight loess, mixed with water and admixture, and added to the base layer and the second vibration pressure molding to produce the surface layer, the bending strength is The 3.0N / mm2 threshold is exceeded but the porosity is less than 10%.

In Comparative Example 2, water and a mixed material were mixed at a ratio of 17% by weight of cement, 75% by weight of 4 to 5mm silica sand, 3% by weight of pigment, and 5% by weight of ocher to form a base layer by primary vibrational compression molding. It is a case where the mixture is mixed with water and admixture in the proportion of 75% by weight, 1% to 2.5mm silica sand, 3% by weight of pigment, and 4% by weight of ocher, followed by secondary vibration pressure molding to produce the surface layer. Is higher than the 3.0 N / mm2 threshold but is too small to be suitable for permeable ocher blocks.

In Example 1, 15% by weight of cement, 80% by weight of 6 ~ 13mm crushed coarse aggregate, 5% by weight of ocher mixed with water and admixtures to form the base portion by primary vibrational pressure forming, 18% by weight of cement, # 12-24 Dolomite mill coat 75% by weight, loess 5% by weight, pigment 2% by weight of water and admixture mixed in the base layer and the second vibration pressure molding to produce the surface layer, the porosity is high Flexural strength can also be sufficiently secured, and this becomes an appropriate compounding standard.

In Example 2, 17% by weight of cement, 75% by weight of 6 ~ 13mm crushed coarse aggregate, 7% by weight of ocher mixed with water and admixtures to form the base portion by primary vibrational pressure forming, 15% by weight of cement, # 12-24 Dolomite mill coat 78% by weight, ocher 5% by weight, pigment 2% by weight of water and admixture mixed in the base portion and the second vibration pressure molding to produce the surface layer, the porosity is also appropriate In addition, sufficient bending strength can be ensured, which is a standard for proper mixing.

Tables 2 and 3 show the test results of measuring the flexural strength and permeability coefficient at the Korea Building Materials Testing Institute.

Table 2 is a table showing the results of measuring the bending strength and permeability coefficient of Comparative Example 2 of Table 1, Table 3 is a table showing the results of measuring the bending strength and permeability coefficient of Example 2.

TABLE 2

Test Items unit Sample classification result Test Methods   Flexural strength   MPa One 5.8   KS F 4419: 2001 2 5.8 3 5.9 4 6.1 5 5.7 Permeability coefficient cm / s One 0.0029 KS F 2322: 2000

TABLE 3

Test Items unit Sample classification result Test Methods   Flexural strength   MPa One 8.1   KS F 4419: 2001 2 6.8 3 8.4 4 7.8 5 7.2 Permeability coefficient cm / s One 0.015 KS F 2322: 2000

In Table 2, Comparative Example 2 had the highest value of 6.1 MPa among the flexural strength test 5, and Example 2 of Table 3 had the highest value of 8.4 MPa among the flexural strength test 5, which is higher than that of Comparative Example 2.

In addition, Comparative Example 2 is permeable 0.0029 cm per second, it can be seen that Example 2 is permeable 0.015 cm per second. Permeability coefficient according to the Korean Industrial Standards (KS) should be permeable more than 0.01 per second, it can be seen that Comparative Example 2 does not meet the reference value.

As shown in Tables 1 to 3, Comparative Examples 1 and 2 use silica sand having a size of 4 to 5 mm and a small amount of loess as the base material, so that no voids are formed when the base material is formed. It can be seen that the ocher is added to the structure having a weak pore formation due to the small ~ 5mm silica sand particles, and thus the actual permeability is significantly impaired.

However, Examples 1 and 2 used the 6-13 mm thick coarse aggregate having larger voids than the silica sand to compensate for these disadvantages, thereby forming a large number of air gaps in the base portion, thereby significantly increasing permeability, and coarse coarse aggregate. The powder is coated to increase the strength of the product by increasing the bonding strength between the crushed coarse aggregates, as well as the structure that can increase the effect of ocher when the rain water is transmitted.

As described above, the present invention has been described with reference to the embodiments shown in the drawings, which are merely exemplary, and the present invention is not limited to the above embodiments and drawings, and various modifications may be made by those skilled in the art within the scope of the technical idea of the present invention. This is possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

The permeable ocher block according to the present invention comprises a base layer portion in which coarse aggregate and ocher are mixed with each other to form voids, and a dolomite wheat coat and ocher mixed with surface layer portions to form pores, thereby mixing silica sand and loess. It is more permeable because it forms more air gaps in the bottom part, so it can be used in urban sidewalk blocks or apartment complexes.

1 is a perspective view of a water-permeable ocher block according to the present invention,

2 is a flow chart of a method of manufacturing a water-permeable ocher block according to the present invention.

<Explanation of symbols on main parts of the drawings>

2: permeable ocher block 10: substratum

      15: projection 20: surface layer

      30: ocher 40: crushed coarse aggregate

      50: Dolomite Wheat Coat

Claims (5)

A base portion having cement and crushed coarse aggregate and loess mixed with voids; A water-permeable ocher block formed on one surface of the base layer and including a surface layer having a void by mixing white cement, a pigment, a dolomite wheat coat, and ocher. The method according to claim 1, The surface layer portion, the weight percent of the white cement, the loess, the dolomite wheat coat, the pigment is 14 to 20% of the back cement, 68 to 80% of the dolomite wheat coat, 5 to 10% of the loess, A water-permeable ocher block composed of 1-2% of pigment. The method according to claim 1,         The crushed coarse aggregate is permeable ocher block is used that is 6 ~ 13mm to form a pore of the appropriate size. The method according to claim 1, The base layer is a water-permeable ocher block composed of cement, the coarse aggregate and the weight percentage of the loess, the cement 10-18%, the coarse aggregate 72-85%, and the loess 5-10%. Substrate for adding 10 to 18% of cement, 72 to 85% of crushed coarse aggregate, and 5 to 10% by weight of ocher powder by adding water and admixture, mixing the mixture, and putting the mixture into the mold of the vibrating pressure molding machine. A sub molding step; Water and admixture are added and mixed with 14 to 20% of white cement, 68 to 80% of dolomite mill coat, 5 to 10% of ocher powder, and 1 to 2% of pigment by weight. Method for producing a water-permeable ocher block comprising the surface layer forming step of supplying to at least one surface of the base layer is subjected to vibration pressure molding.

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