KR101117447B1 - Method for manufacturing of Prefabricated clay wall capable of attaching - Google Patents

Abstract

The present invention comprises the steps of: (a) obtaining a clay body represented by Al ₂ 0 ₃ ? SiO ₂ ? H ₂ O, consisting of 68% by weight of primary clay of pink kaolin and 22% by weight of secondary clay of Gwangju clay; (b) milling the dried clay stock and then passing it through a 70 mesh sieve; (c) preparing a clay mixture by adding 10% by weight of lime and samsil to the clay body of step (c); (d) compressing the clay mixture by applying a force to an aluminum steel frame having a size of 800 to 1000 cm, 500 to 700 cm, and 10 to 30 cm in height; And (e) to a method for producing a prefabricated soil wall comprising the step of drying the clay mixture is pressed to the iron frame 15 to 20 days at 28 ℃. Accordingly, using clay that is harmless to humans and the environment, it is possible to provide a prefabricated soil wall having excellent aesthetics capable of artificially controlling water absorption and surface cracks, and easy to attach, remove, and replace.

Clay, lime, twine, aluminum iron frame

Description

Method for manufacturing of Prefabricated clay wall capable of attaching

The present invention relates to a prefabricated soil wall composed of clay and a method for producing the same. Specifically, in the present invention, the prefabricated soil wall, in which the clay mixture composed of primary clay, secondary clay, and twine, steel, is pressed on the steel frame, is cracked on the surface of the earth wall due to the change of the shape of the cell screen in the steel frame through a natural drying method. It relates to a method of manufacturing to enable the adjustment of the form.

Since mankind's first natural drying of clay to manufacture building bricks to make structures, bricks are one of the important building materials, and have been used in various ways to construct spaces such as inner and outer walls. The bricks currently used are gradually being fired to a higher degree, and are being developed with an emphasis on aesthetics and robustness.

Despite the advantages of high strength and aesthetics in the construction of the fired bricks, it takes a lot of time and cost to build the walls and finishes for the interior wall, finishing, and exterior. There is a drawback to the discharge of pollutants by using, there is a problem that does not implement the advantages of the brick made by natural drying the clay. Instead, it can solve problems such as shortening construction time by using tiles or terracotta products for building materials, but it is not possible to divide the space in the building, and it has the same properties as fired bricks due to poor dehumidification and moisturizing effects. There are disadvantages.

In addition, the earth brick currently used in the market has its own pattern and texture, so there is no need to add a special decoration after construction, and it is easy to absorb and discharge moisture, so it is excellent in humidity control. It takes up a lot of space and requires a lot of time and money because it is made larger than ordinary bricks to increase dry strength and maintain shape, and the large volume of bricks itself encroaches much of the interior space. In addition, it is heavier than other materials and requires a lot of manpower and cost for masonry, transportation and storage.

Accordingly, the new construction combines the advantages of clay bricks and tiles, which can overcome the disadvantages of large volume, high price and construction, which are disadvantages of naturally dried clay bricks. Development of ceramic materials is required.

Therefore, in the present invention, the moisture-absorbing properties, soundproofing, and the like of the naturally dried clay brick itself, and the crack shape of the earth surface surface are artificially adjustable and applicable to an aesthetically superior design, and construction like a gypsum panel It is possible to provide a method of manufacturing a detachable prefabricated soil wall, which can be convenient and cost-effective.

It is an object of the present invention to provide a method for producing a prefabricated soil wall in which a clay mixture composed of primary clay, secondary clay, and twine, steel is pressed onto an iron frame.

The present invention comprises the steps of: (a) obtaining a clay body represented by Al ₂ 0 ₃ ? SiO ₂ ? H ₂ O, consisting of 68% by weight of primary clay of pink kaolin, and 22% by weight of secondary clay of Gwangju clay; (b) milling the dried clay stock and then passing it through a 70 mesh sieve; (c) preparing a clay mixture by adding 10% by weight of lime and samsil to the clay body of step (b); (d) compressing the clay mixture by applying a force to an aluminum steel frame having a size of 800 to 1000 cm, 500 to 700 cm, and 10 to 30 cm in height; And (e) provides a prefabricated soil wall comprising the step of drying the clay mixture is pressed to the iron frame 15 to 20 days at 28 ℃. At this time, in the formula, Ｘ is an integer of 2 to 4, Ｙ is an integer of 2 to 6.

Preferably, the sliding attachment may be coupled to the aluminum frame, and a fixed clasp may be attached to the rear of the frame, but is not limited thereto.

Hereinafter, the present invention will be described in more detail.

Clay as a common building material has a lower strength than rock, fired bricks, metals, and cement, but it is very safe in a fire because of its excellent heat resistance. In addition, it is preferable to be used in indoor living environment because of the excellent water absorption rate and good thermal insulation effect, and exhibits a good sound absorption rate similar to that of a general sound absorbing material in the medium and high frequency band including noise of automobiles.

Naturally produced clay does not move much of the rock, but white primary clay (remaining clay) that has changed from its place into soil and the rock is moved by external forces such as water, wind, and attraction. Divided into dark secondary clays (sedimentary clays) produced by mixing. Primary clay is typically clay, kaolin, and kaolin, which have high sintering temperature and have good strength and whiteness after firing. Product can be produced. Typically, primary clays have low viscosity and lack formability, but can produce low shrinkage products with low warpage. Secondary clays have low sintering temperature and good viscosity, and have excellent moldability, but have high shrinkage and are easily deformed during firing and drying.

In general, clay collected from the surface is used through a defensive process, but pollutants such as formaldehyde and VOCs are detected by mixing pollutants contained in the air pollution and plants. However, unlike clay collected at the surface layer, secondary clay mined in mines is contaminated with minimal pollution because the influx of pollutants is limited, such as pure primary clay not moved from the mother rock.

Since most of the secondary clays contain various oxides and organic materials including iron, various colors and natural textures are expressed in the natural dry state, but the fired products have a dense surface due to the sintering process of clay, which restricts the expression of various textures. do. In addition, since the components in the clay are sintered and disappeared, color development of only the remaining high temperature oxide is performed, and thus the color development is also very limited. That is, it is more suitable to use natural dried clay to express various colors and naturalness, and when white primary clay is naturally dried, white of various materials may be expressed.

On the other hand, natural dry clay that is not calcined cannot obtain effects such as an increase in strength due to calcining and a decrease in water absorption. However, since the form of the dry state is maintained during the combination of raw clay, it is possible to produce a clay product more suitable for the purpose using an external viscous material or auxiliary frame. In addition, when fabricating using a press or a hammer, it is possible to increase the density of the substrate and increase the dry strength by applying pressure or a force. In particular, natural dried clay is a material that is harmless to humans due to its excellent humidity control ability, sound insulation, deodorization, antibacterial and far-infrared emission, and its own intrinsic energy is 5 ~ 10 KWh / m². It is low and environmentally friendly because pollution itself is reduced to nature when disposed. Soil wall made of naturally dried clay helps the body's body rhythms by far-infrared radiation, promotes metabolism and blood circulation, prevents aging and recovers fatigue, and purifies indoor air by self-cleaning. Humidity control, heat insulation, sound insulation, moisture proof effect makes a comfortable living environment. In addition, it is durable as non-combustible materials, can be used permanently in one construction, costs no maintenance, and is 100% recyclable material, which is environmentally friendly building material.

However, in the case of naturally dried clay bricks, there is a disadvantage in that the space utilization during interior construction is reduced, the cost is excessively consumed, and there is a lack in aesthetic aspect because it is not controlled for the track shape generated during drying.

As a result, in the present invention, the content of SiO ₂ and Al ₂ O ₃ is high, and the clay is a low-pollution primary clay type clay (hapcheon clay or pink kaolin), the base material containing these components, and natural dry strength is good Ocular clay was used.

In addition, the prefabricated soil wall of the present invention has a primary component of naturally dried primary clay, and using the mined secondary clay to prevent the introduction of additional harmful substances during construction. In the case of primary clay exposed to the surface of the earth (clay that has not migrated and changed to soil on the spot), it is not safe from pollution, so mining in clean areas except primary clay and pollution area mined in mines Secondary clay was used.

The type of raw soil used in the present invention and each component ratio are shown in Table 1 below. In particular, kaolin is a representative primary clay represented by an import clay used in combination for carrying _{plastic, Al 2 0 3? 2SiO 2} ? 2H 2 O.

SiO ₂ Al ₂ O ₃ Fe ₂ O CaO MgO Lg. loss Sancheong soil 44.16 39.97 0.70 0.10 0.10 12.1 Obu clay 45.84 38.08 0.70 1.80 0.78 13.2 Angang clay 61.8 20.4 5.28 1.10 Yeoju red soil 47.2 29.8 7.48 1.03 Hapcheon Clay 32.66 42.13 0.72 0.90 Kaolin (Chinese) 49.40 31.37 0.64 0.17 0.59 14.00 Seosan Water Soil 43.3 39.0 1.87 0.73 0.19 14.12 Wamok Clay 49 32 0.5 1.00 Gaya Pink Kaolin 47.82 34.64 0.94 0.49 0.29 Hollow clay 51.97 30.85 1.44 0.28 1.01 Gwangju 71.58 16.25 0.49 3.08 0.49

In the present invention, as the primary clay, Hapcheon clay or pink kaolin was used. At this time, it was used to exclude sedimentary clays and soils that were polluted by pollutants. In general, since the size of the primary and secondary clays that are purified and sold are very uniform, the formation and drying strength of the clays are weak, the clays used in the fabrication of the soil were collected in a natural state and then deflected. Made clay.

As the secondary clay, one or more clays selected from the group consisting of Hampyeong clay, Gwangju clay, Angang clay, Sancheong clay, Obu clay and Yeoju clay were used in combination.

Hampyeong clay is used to excavate domestically, and after drying, its color is similar to that of primary clay, and its color is better, and its viscosity and plasticity are better than that of iron-based clay.

Angang clay is a secondary clay that is excellent in viscosity, dark in color, and relatively fine in particle. Gwangju clay is a secondary clay that is mined in Gwangju. It is a kind of fire clay with good viscosity.

Obu clay is a kind of refractory clay with high degree of saturation but not strong viscous, and Seosan product clay is very weak white clay with strong sand.

Sancheong clay has high fire resistance, viscosity and plasticity, so it is mainly used for mixing with other materials.

Gwangju clay is a secondary clay of yellow and red which is generally mined in Gwangju area and contains constituent particles of various sizes. Although its own strength is not large, it has abundant porosity after drying.

In the present invention, to improve the durability and strength, and to strengthen the resistance to moisture was used as a viscous reinforcing material and a viscous material for maintaining the dry strength (lime lime). If the viscosity of clay added during the production of the body is excellent, the strength is improved after drying, but it may be bent or cracked during the drying process, so that the content of viscous strong base material can be lowered and a viscosity reinforcing agent can be added to replace it.

Typically, additives containing fibers of a certain length, such as rice straw and mesh, are used to increase the dry strength by preventing deformation and cracking during drying.However, when such an additive is used, the porosity of the soil itself is large. It can create a favorable environment for microorganisms to multiply, which can be harmful to health. In the present invention, instead of the conventional fiber additives as described above, hemp yarn having a fine fiber was used.

In the present invention, the binder theory was introduced to improve the dry strength of clay and maintain it. The theory of binders is that condensation occurs due to the presence of a strong bonding material that binds the particles together. In other words, the phenomena of the ionic reaction and the ionic reaction of the material introduced from the outside appear in the soil fine ground existing in the soil in the natural state. . This has the disadvantage that there must be an external material input, but the strength is high, there is a strong advantage in water. Therefore, the clay soil wall of the present invention is mounted indoors, but there is a risk of exposure of clay bricks to moisture due to various living conditions, so the lime was added to the clay by selecting the pozzolanic reaction (Matrix Theory), which is easy to maintain strength. It is white in color and contains no harmful ingredients to the human body, so that its strength is maintained without changing its properties.

When preparing clay by combining clay in the combination of clay to be used for soil walls, refine the raw clay by using a grinder or through a screen rather than using a ball mill to combine the uniform powder of finely divided round particles. It is desirable to. In addition, when using raw soil produced in different mountain regions, since the size of the constituent particles of the raw soil is different for each mountain region, it is possible to obtain a combination of various sizes and shapes. The resin thus obtained is higher in dry strength and formability than the resin using finely divided base.

In the present invention, by attaching an iron screen inside the soil wall can be expressed in the desired form of cracks in the production of the soil wall. Considering that the shape of the screen mounted inside and the shape of the crack generated after drying coincide, various shapes and sizes of screens can be used to artificially express various appearances for the purpose. In other words, in the case of the prefabricated soil wall of the present invention, the screen is used to maintain the solidity and strength of the soil wall and to express the surface crack shape suitable for the purpose, and as a result, the natural surface is controlled by adjusting the surface form of the soil wall. It kept aesthetics alive.

Two kinds of screens were used to make the earth walls constructed for the actual experiment. The cracks did not appear at the beginning when the base was attached to the screen, but cracks began to develop during the drying process and cracked until complete drying. In addition, the size of the crack was changed by the moisture content of the air after the earth wall is installed.

In the present invention, overcome the disadvantages of the soil bricks as a typical building material, and easy to assemble and divide the space, and has the advantages of easy-to-install gypsum board while building natural dry clay which is a building material beneficial to the environment and the human body It was used to prepare a prefabricated soil wall detachable. In other words, in the case of the soil brick, it takes a lot of time and money when using it, and solves the disadvantage that the volume of the brick itself is large, making it difficult to masonry, transport and store it in comparison with other materials. And a prefabricated earth wall excellent in aesthetics.

In addition, in the present invention, the prefabricated soil wall has a fixed clasp attached to the rear of the aluminum frame to facilitate the construction. Accordingly, the prefabricated soil wall of the present invention is not only easy to attach, remove and replace, but also can be combined between the soil walls and variously changed visually, and can be easily repaired and repaired by replenishing clay in the future.

Hereinafter, the present invention will be described in more detail based on the following examples. The following examples are merely intended to illustrate the invention, not to limit the invention.

Example

Example 1.Preparation of Clay Mixtures

Pink kaolin (primary clay, studio Sungshin, ccp-101 (jeongjae) and Gwangju clay (secondary clay, studio Sungshin, cc-101) was mixed in the mixing ratio of Table 7 below to obtain clay possession. At this time, each clay body was naturally dried in a closed room for one month, and the clay body was pulverized while maintaining various particle forms and properties of raw clay, and then passed through a 70-mesh sieve to remove foreign substances.

Subsequently, the clay mixture was added to the clay body with lime (lime lime) and hemp yarn with fine fibers to obtain a clay mixture.

The type and combination ratio of the components used for clay holding of the present invention are shown in Table 2 below.

Composition and combination ratio of clay body number ingredient Weight (ratio) One Guangzhou clay 100% 2 Angang clay 100% 3 Sancheong Clay 100% 4 Guangzhou clay 45% White kaolin 45% Lecture (quick lime), twine 10% 5 Angang clay 45% White kaolin 45% Lecture (quick lime), twine 10% 6 Sancheong Clay 45% White kaolin 45% Lecture (quick lime), twine 10% 7 Guangzhou clay 68% Pink kaolin 22% Lecture (quick lime), twine 10% 8 Sancheong Clay 68% Pink kaolin 22% Lecture (quick lime), twine 10%

Example 2 Flexural Strength Analysis

The bending strength of the clay mixture of the present invention was analyzed (Korea Ceramic Institute, Report No .: 2009-1561, 2009.07.06; Standard: KS L 1001: 2008, Temperature: 17-28 ℃, Relative Humidity: 47-48% RH).

The clay mixture of the present invention composed of gwangju, pink kaolin, hemp, and lime has a bending strength of 6 N / cm, and it can be seen that the strength was significantly increased compared to the clay composed of gwangju and pink kaolin (Table 3). .

Sample Name Test Analysis Items Test analysis result Test Analysis Method Clay (Gwangju, Pink Kaolin) Bending strength (N / cm) 3 KS L 1001: 2008 Clay Mixtures (Urban, Pink Kaolin, Twine, Lime) 6

Example 3 Fabrication of Aluminum Iron Frame

In the present invention, the installation and detachment of the soil wall is convenient, in order to increase the adhesive strength of the clay after construction, the aluminum frame was manufactured. That is, based on the size of the existing standardized tile and gypsum board was manufactured to be used as an alternative to the general wall in the future.

* Size-900 X 600 X 20cm

* Weight-5kg

* Bonding Method-Electric Welding

First, a square frame was made to fix the iron screen, and a screw was attached at a constant height. The screen was placed in a standard frame and a fixed frame was attached. Thereafter, after welding the screen to the frame, screw holes were made at four corners of the outer frame to complete the steel frame. In addition, by combining the sliding attachment to move and detach the earth wall in a sliding manner, the fixed clasp attached to the back of the frame to facilitate the construction and decontamination.

Therefore, the steel frame is equipped with a screen of a right angle and a diagonal form inside the dried clay is mounted on the frame to prevent the dried clay to detach from the external impact after installation.

Example 4 Fabrication of Soil Walls

The earth wall of the present invention was produced using a natural drying method to maintain the properties of clay clay itself, the properties of the main material clay is not changed by the chemical change through the firing process. Natural drying took place at 28 ° C. for 15-20 days.

In the case of calcining clay, the density increases during the calcining process, and the strength increases as chemical changes such as silica transition and magnetization of the body occur. In addition, in order to compensate for the weak point compared to other materials in dry strength, in the present invention, the clay mixture was pressed by applying a force to the aluminum steel frame. The outer mold, in which the clay mixture was pressed, was fixed to an iron shelf and dried. At this time, when drying occurs suddenly or when drying starts from a specific part, since it is bent or distorted, it is gradually dried in an enclosed space to avoid rapid drying.

Experimental soil walls were made in large sizes based on the size of existing standardized large tiles and plasterboards, so that they could be used instead of decorative walls.

The form and material of the prefabricated soil wall prepared in the present invention are shown in Table 4 below.

size 6000mm X 9000mm X40mm weight Clay weight before drying 46 Kg Clay weight after drying 38 kg Final product with final external mount 42 Kg External attachment material 2mm steel sheet, aluminum iron screen Desorption Dry attachment

Figure 1 shows the shape of the diagonal screen used in the present invention and the crack change of the earth surface.

Figure 2 shows the shape of the rectangular screen used in the present invention and the crack change of the earth surface.

Claims (2)

(a) obtaining a clay substrate represented by Al ₂ O ₃ ? SiO ₂ ? H ₂ O, consisting of 68% by weight of primary clay of pink kaolin and 22% by weight of secondary clay of Gwangju clay; (b) milling the dried clay stock and then passing it through a 70 mesh sieve; (c) preparing a clay mixture by adding 10% by weight of lime and samsil to the clay body of step (b); (d) pressing the clay mixture to an aluminum steel frame measuring 800 to 1000 cm wide, 500 to 700 cm long and 10 to 30 cm high; And (e) a method of producing a prefabricated soil wall, comprising the step of drying the clay mixture of the iron frame is pressed for 15 to 20 days at 28 ℃. (Wherein, 정수 is an integer from 2 to 4, Ｙ is an integer from 2 to 6.) delete

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