KR100799760B1 - Costruction material using used gypsum, and manufacturing method thereof - Google Patents

Abstract

An interior or exterior building material using waste gypsum is provided to realize increased mechanical strength, and enhanced noise-absorbing property, heat insulating property and flame resistance. An interior or exterior building material using waste gypsum comprises: waste gypsum; waste paper; loess absorbing far infrared rays to form a heat insulating layer; gypsum; cement; an aqueous bond for reinforcing the waste paper; sodium aluminate accelerating the curing of the cement; sand as fine aggregate; mortar cured in combination with the sand and cement; line bound to the loess for curing the loess; a cement-based binder for increasing the viscosity of the resultant mixture; and an aqueous primer for adhering the ingredients. Further, the interior or exterior building material is formed into a plate type, and has a plurality of sound absorption hole inside.

Description

Interior and exterior materials and manufacturing method using waste gypsum {COSTRUCTION MATERIAL USING USED GYPSUM, AND MANUFACTURING METHOD THEREOF}

1 is a perspective view of the interior and exterior materials according to the present invention.

Figure 2a to 2d is a partial cross-sectional view showing the form of the preferred sound absorbing hole of the interior and exterior materials according to the present invention.

Figure 3 is a flow chart showing a manufacturing method of the interior and exterior materials according to a preferred embodiment of the present invention.

Figure 4 is a flow chart showing a manufacturing method of the interior and exterior materials according to another embodiment of the present invention.

5 is a perspective view showing a mold used for manufacturing the interior and exterior materials according to an embodiment of the present invention.

Figures 6a to 6b is a partially enlarged view showing the shape of the projections in the mold used to manufacture the interior and exterior materials according to the embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

10 interior and exterior materials of the present invention 11 sound-absorbing hole

20: base plate portion 21: the edge portion

22: projection 23: projection

31: rotating blade 32: control lever

33: top of the rotary lobe 34: protuberance

The present invention relates to interior and exterior materials using waste gypsum, and more particularly, to a practical interior and exterior materials and a method of manufacturing the same by increasing the mechanical strength and sound absorption by adjusting the composition and the component ratio of each component.

Unlike general construction waste materials, waste gypsum contains a large amount of harmful components, and also contains a large amount of harmful components that cause environmental pollution. Therefore, the disposal cost is high, so the necessity of recycling has emerged. Therefore, in recent years, a technology for making interior and exterior materials using waste gypsum has been developed, but since the interior and exterior materials made by recycling waste gypsum were not practical because of low mechanical strength, there was a problem in that it is not possible to expect economical efficiency in recycling waste gypsum.

Therefore, the present invention has been made to solve the above-mentioned conventional problems, an object of the present invention is to provide an interior and exterior materials using the waste gypsum is adjusted composition and addition ratio of the constituent material to increase the mechanical strength.

In addition, another object of the present invention is to provide an interior and exterior materials using waste gypsum added with natural mineral pearlite to enhance flawability, heat insulation and fire resistance using waste gypsum.

Still another object of the present invention is to provide an interior and exterior material using waste gypsum having a plurality of sound absorbing holes on its surface in order to increase the effects of sound absorption and room temperature.

According to the present invention for achieving the above object, the present invention is a waste gypsum, waste paper, ocher to absorb the far infrared to form a heat insulating layer, ordinary gypsum, cement, an aqueous bond to strengthen the waste paper and , Sodium aluminate for promoting hardening of the cement, fine sand, mortar hardened in combination with the sand and the cement, lime hardened in combination with the loess, and a mixture of the components It comprises a cement-based binder to increase the viscosity, and an aqueous primer to strengthen the adhesion between the components.

At this time, the waste gypsum is 20 to 35% by weight, the loess is 10 to 20% by weight, the cement is 12 to 18% by weight, the waste paper is 5 to 20% by weight, the general gypsum is 2 to 6 % By weight, the crushed mortar is 2 to 4% by weight, the lime is 3 to 8% by weight, the sodium aluminate is 0.5 to 5% by weight, the cement-based binder is 0.5 to 2% by weight, the aqueous The bond is 0.2 to 4% by weight, the sand is 5 to 15% by weight, and the aqueous primer is added by adjusting 2 to 8% by weight.

On the other hand, the natural mineral pearlite having the effect of sound absorption and room temperature after curing the mixed mixture by adjusting the ratio of each of the constituent materials may be applied.

 Alternatively, a color additive representing a color to be expressed may be added to the above-described interior and exterior materials to be expressed in color. When the color additive is intended to show black, black clay is used, and the color may be represented by a plant extract mixed with plants as a raw material, or may represent the color of the interior and exterior materials by using charcoal powder which is a natural dye.

 In addition, the mustard powder may be stirred together with the pearlite to be applied to the surface of the interior and exterior materials for insect repellent action.

On the other hand, the interior and exterior materials are formed in a plate shape having a predetermined thickness, a plurality of sound absorbing holes are formed therein.

In this case, the sound absorbing hole may be any one of the shape of the top surface of the sound absorbing hole formed on the upper surface of the interior and exterior materials oval, circular, triangular, rhombus, square.

On the other hand, the size of the upper surface of the sound absorbing hole formed on the upper surface of the interior and exterior material is smaller than the size of the shape of the bottom surface of the sound absorbing hole is preferably having a trapezoidal cross-section when the interior and exterior material is cut in the longitudinal section.

In addition, the bottom surface of the sound absorbing hole may have a ball shape.

On the other hand, the present invention, the step of pulverizing the waste gypsum with a pulverizer, the waste paper soaked in water, ocher, ordinary gypsum, cement-based binder, and the aqueous bond to the waste gypsum crushed mixing step to make a primary dough And, a secondary kneading step of mixing lime, aqueous primer, sodium aluminate, cement, chopped mortar, and sand in the primary dough to mix, and molding the secondary dough into a mold and forming the secondary dough. Compressing the molded body by pressing and completing a shape, drying the molded body, applying a base coat, and applying natural mineral pearlite to the surface of the molded body.

At this time, in the first kneading step, the ocher is 10 to 20% by weight, the waste gypsum is 20 to 35% by weight, the waste paper is 5 to 20% by weight, the general gypsum is 2 to 6% by weight , The cement-based binder is 0.5 to 2% by weight, the aqueous bond is added 0.2 to 4% by weight.

On the other hand, in the secondary kneading step, the lime is 3 to 8% by weight, the aqueous primer is 2 to 8% by weight, the sodium aluminate is 0.5 to 5% by weight, the cement is 12 to 18% by weight The sand is added 5 to 15% by weight.

In addition, in the step of making the shape, it is possible to use a continuous extrusion method.

In the step of applying the pearlite, it may be applied by pressing a predetermined strength with a pressing machine.

When the pearlite is applied, the mustard powder is stirred together with the pearlite, and pressed by a predetermined strength using a press machine.

After the pearlite is applied, the molded body may be dried, and a post-treatment step may be performed to rearrange the shape of the interior and exterior materials with a hook-shaped equipment.

On the other hand, the mold forming the shape of the interior and exterior materials, the base plate forming the bottom surface, the edge portion protruding a predetermined height along the outer peripheral surface of the base plate to form a curing space therein, and the base plate It comprises a protrusion consisting of a plurality of protrusions protruding the front of the furnace to form the sound absorbing hole.

The protrusion is connected to the lower end of the protrusion, the control lever for adjusting the size and shape of the upper portion of the protrusion, and the plurality of rotary blades and the rotation is controlled by the control lever, forming the shape of the protrusion It is connected to the upper end of the lobe, and is made of an elastic material, and consists of a projection upper membrane that shields the inside of the projection from the outer upper surface of the projection. In addition, the protrusion corresponds to the shape of the sound absorbing hole, by adjusting the control lever, the size and shape of the outer upper portion of the protrusion can be adjusted, thereby operating the size and shape of the sound absorbing hole.

According to the present invention having the configuration as described above, by controlling the component ratio of each constituent material is made of an internal and external material with high mechanical strength, by the addition of pearlite, a multifunctional interior and exterior material with excellent sound absorption, fire resistance, heat insulation is made, By placing a plurality of sound-absorbing holes on the surface of the interior and exterior materials, there is an advantage of making practical interior and exterior materials with excellent sound absorption and sound insulation.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the interior and exterior materials using waste gypsum according to the present invention as described above will be described in detail.

Figure 1 is a perspective view of the interior and exterior materials according to the present invention, Figures 2a to 2d is a partial cross-sectional view of the sound absorbing hole showing the form of a preferred sound absorbing hole of the interior and exterior materials according to the present invention, Figure 3 is an interior and exterior material according to a preferred embodiment of the present invention 4 is a flow chart showing a manufacturing method of an interior and exterior material according to another embodiment of the present invention, Figure 5 is a perspective view showing a mold used for manufacturing the interior and exterior material according to an embodiment of the present invention. 6 is a partially enlarged view showing the shape of the projections used to manufacture the interior and exterior materials according to the embodiment of the present invention.

As shown in these figures 1, the interior and exterior packaging material 10 has a plate shape having a predetermined thickness, and a plurality of sound absorbing holes 11 are formed therein.

Hereinafter, when the interior and exterior packaging material 10 is installed on the wall, the part that is in close contact with the wall is defined as the lower surface portion of the interior and exterior packaging material 10, and the portion where the sound absorbing hole 11 shown in FIG. The upper surface of the In addition, the cross-sectional shape of the sound absorbing hole 11 located on the upper surface of the inner and outer packaging material 10 is defined as the upper surface of the sound absorbing hole, and the groove toward the lower surface of the inner and outer packaging material 10 from the upper surface of the inner and outer packaging material 10. The bottom of the sound absorbing hole 11 to be formed is defined as the bottom surface of the sound absorbing hole (11).

2A to 2D show various types of sound absorbing holes.

As shown, the upper surface of the sound absorbing hole 11 formed in the upper surface of the interior and exterior packaging material 10 may be formed in various forms of oval, circular, triangular, rhombus or square. When the interior and exterior materials are cut in the longitudinal cross section, the cross-sectional shape of the sound absorbing hole 11 is preferably formed such that the cross-sectional area gradually increases from the upper surface portion of the interior and exterior materials to the lower surface portion. For example, when the upper end surface of the sound absorbing hole 11 is circular, the longitudinal cross section of the sound absorbing hole 11 forms a trapezoid, as shown in FIG. 2B. The shape of the sound absorbing hole 11 is such that the cross section of the sound absorbing hole having a larger diameter incident to the smaller diameter is lost due to resonance with air in the space formed with the wall surface, and thus the interior and exterior materials 10 Is to make the sound absorbing effect greatly enhanced with its own voids. Therefore, by properly adjusting the diameter, the length and the surface area of the sound absorbing hole substantially performing sound absorption, it is possible to make the interior and exterior material 10 to match the frequency band of the specific noise. In addition, the shape of the sound absorbing hole 11 is preferably as shown in Figures 2c and 2d, the sound absorbing hole may not form the bottom surface of the sound absorbing hole in the interior and exterior of the interior and exterior materials.

On the other hand, the bottom surface of the sound absorbing hole 11 may be a ball shape. This is in the manufacture of the interior and exterior materials 10, when the sound absorbing agent realigns the shape of the interior and exterior materials 10 after the application of pearlite, the sound absorbing hole 11 with a hook-shaped equipment to correct the shape of the sound absorbing hole 11 The parts will be rearranged. In this case, in order to provide convenience in manufacturing, the bottom surface of the sound absorbing hole 11 may be manufactured in the form of a ball as shown in FIG. 2C.

Hereinafter, the action of the interior and exterior materials using the waste gypsum according to the present invention will be described in detail with reference to the manufacturing method.

3 is a flowchart illustrating a method of manufacturing the interior and exterior materials according to a preferred embodiment of the present invention.

As shown in Figure 3, in order to produce the interior and exterior materials according to the present invention, first, the discarded reinforcement board and waste gypsum is ground using a grinder (S110). At this time, it is pulverized until the granular state of the waste gypsum becomes a powder form.

 Next, the waste paper pulverized soaked paper, ocher, ordinary gypsum, cement-based binder, and an aqueous bond are added to the waste gypsum pulverized and added to the stirrer to stir and mix (S120). Preferably in order to increase the strength of the interior and exterior materials, the loess is 10 to 20% by weight, the waste gypsum is 20 to 35% by weight, the waste paper is 5 to 20% by weight, the general gypsum is 2 to 6% by weight, The cement binder is 0.5 to 2% by weight, the aqueous bond is added 0.2 to 4% by weight. The weight% described below represents the total weight ratio percentage after the second dough.

Then, lime, an aqueous primer, sodium aluminate, cement, chopped mortar, and sand are added to the mixture made by mixing at the ratio shown above, followed by mixing to form a secondary dough (S130). In order to increase the strength of the interior and exterior materials 10 and the quality of the product, each component is 3 to 8% by weight of the lime, the aqueous primer is 2 to 8% by weight, the sodium aluminate is 0.5 to 5% by weight, the cement 12 to 18% by weight, the sand is added 5 to 15% by weight. When performing such a work, it is preferable to knead using a kneading machine in a stirrer.

The mixture, kneaded by mixing each component in an appropriate ratio, is placed in a mold and cured. At this time, the thickness of the interior and exterior packaging material 10 is determined by adjusting the height of the mold according to the thickness of the interior and exterior packaging material 10 to be manufactured (S140).

The shape of the interior and exterior packaging material 10 is determined using the mold as shown in Figure 5 (S150). The interior and exterior packaging material 10 is formed in a plate shape formed with a plurality of sound absorbing holes (11). The mold determines the shape of the interior and exterior packaging material 10 as described above. The mold includes a base plate 20 forming a bottom surface, an edge portion 21 protruding a predetermined height along an outer circumferential surface of the base plate 20 to form a curing space therein, and the base plate. Consists of a projection (22) consisting of a plurality of projections 23 are formed to protrude from the front to the front (20). At this time, the shape of the protrusion 23 of the protrusion part 22 is a part for determining the shape of the sound absorbing hole (11). The protrusion 23, by the adjustment of the control lever located on the lower surface of the protrusion 23, the size and shape of the outer upper portion of the protrusion can be adjusted. Meanwhile, as shown in FIG. 2C and FIG. 2D, the sound absorbing hole 11 may not form the bottom surface of the sound absorbing hole 11 in the interior and exterior of the interior and exterior material 10. It may be. In order to manufacture the shape of the sound absorbing hole 11 presented above, the molds shown in FIGS. 5 and 6 may be used.

As shown in FIG. 6, the protrusion 23 is composed of a plurality of rotary blades 31. The projection 23 is connected to the control lever 32 that can adjust the rotary blade 31 in the lower portion of the projection (23). When the control lever 32 is released, the rotary lobes 31 which are connected to each other and are stacked are rotated to be unfolded as shown in FIG. 6B. In addition, the upper end 33 of the rotary lobe 31 is formed of an upper projection 34 of the elastic material. It is preferable that the protrusion upper membrane 34 is made of synthetic rubber. When the rotary blade 31 is unfolded by the adjustment of the control lever 32, the upper projection 34 of the elastic material 23 is elastically connected to the upper end of the rotary blade 31 is stretched. While being located on the outer upper surface of the projection 23, it is to shield the inside of the projection (23). Since the protrusion upper membrane 34 is made of a strong elastic material, various shapes and sizes of the outer upper surface of the protrusion 23 can be manipulated.

In step S150, the mixture is put in the mold, and before the mixture is solidified, the shape of the sound absorbing hole 11 and the surface shape of the interior and exterior material 10 are formed by using the control lever 32 of the protrusion 23. To make. When the mixture solidifies, tightening the control lever 32 of the protrusion 23, the shape of the top surface of the sound absorbing hole 11 and the shape of the bottom surface of the sound absorbing hole 11 is disturbed The solidified interior and exterior materials 10 are removed from the mold while keeping it from being supported.

 When the mold is used, the shape of the sound absorbing hole 11 is operable, so that various modifications of the shape of the sound absorbing hole are possible.

Subsequently, a base coat is applied to a molded product made by drying in the mold. At this time, the base coat is preferably applied by spraying (S160).

Before the base coat dries, pearlite is pressed onto the molded body at a predetermined strength and coated on the molded body (S170). In addition, the mustard powder having a preshrink action may be stirred together with the pearlite to give a predetermined strength using a press machine, and may be applied onto the molded body. The pearlite is pulverized, separated into a suitable particle size for each use, and rapidly heated at a temperature of about 871 degrees or more to evaporate the crystal water is foamed into light porous particles called expanded pearlite. In addition, it is processed into an ultra-light white powder made by plastic processing, which is 10 to 30 times lighter than water. By applying the pearlite used as a high-tech material by using such a light property, the interior and exterior materials for building excellent in heat insulation, non-combustibility, fire resistance, sound insulation.

Finally, after the pearlite is coated on the molded body and then naturally dried, the sound absorbing hole 11 is treated by the hook-shaped equipment after the pearlite is applied to the portion of the sound absorbing hole 11 after drying. It is preferable to make the shape of the sound-absorbing hole 11 to correct the shape of the excellent sound absorption (S180).

On the other hand, according to another embodiment of the present invention, it may further comprise the step of adding an additive for showing the color (S200). Scour requiring color is kneaded by adding natural pigment to the mixture of step S130. When the material is black, it is preferable to knead black clay by adding 5% by weight, or kneading by adding 5% by weight of charcoal powder which is a natural dye. In addition to the material that wants a different color, it is desirable to match the color of the desired material by matching the color with a plant extract containing the plant as a raw material. When the plant extract is used, the interior and exterior materials 10 of various colors can be made.

The rights of the present invention are not limited to the embodiments described above, but are defined by the claims, and those skilled in the art can make various modifications and adaptations within the scope of the claims. It is self-evident.

Interior and exterior materials using waste gypsum according to the present invention as described in detail above can be expected the following effects.

In other words, by controlling the composition and composition ratio of each constituent material, there is an advantage that the practical strength of the interior and exterior materials can be made higher than when the interior and exterior materials were made using waste gypsum in the case.

And the present invention has the advantage of maximizing the sound absorption, fire resistance, insulation of the interior and exterior materials and the weight of the product by adding pearlite.

In addition, the present invention has a number of sound absorbing holes on the surface of the interior and exterior materials to hold the sound in the sound absorbing holes to increase the sound absorption effect, there is an advantage that can achieve the effect of room temperature.

In addition, the present invention contributes to environmental protection as well as economical by developing practical interior and exterior materials by recycling waste gypsum and waste paper causing environmental pollution.

Claims (22)

Waste gypsum, waste paper, loess for absorbing far infrared rays to form an insulating layer, gypsum, cement, aqueous bond for strengthening the waste paper, sodium aluminate for promoting hardening of the cement, Mortar hardened in combination with the sand and cement, lime hardened in combination with the ocher, cement binder for increasing the viscosity of the mixture of the components, and an aqueous primer for adhering the components. Interior and exterior using waste gypsum, characterized in that it comprises. The method of claim 1, The waste gypsum is 20 to 35% by weight, The ocher is 10 to 20% by weight, The cement is 12 to 18% by weight, The lung paper is 5 to 20% by weight, The general gypsum is 2 to 6% by weight, The chopped mortar is 2 to 4% by weight, The lime is 3 to 8% by weight, The sodium aluminate is 0.5 to 5% by weight, The cement-based binder is 0.5 to 2% by weight, The aqueous bond is 0.2 to 4% by weight, The sand is 5 to 15% by weight, and The aqueous primer is an interior and exterior materials using waste gypsum, characterized in that 2 to 8% by weight. The method according to claim 1 or 2, The interior and exterior materials using the waste gypsum, characterized in that the natural mineral pearlite, which is a sound absorbing agent, is applied to the cured product of the mixture blended with the constituents. The method of claim 3, The interior and exterior materials using waste gypsum, characterized in that the mixture further comprises a color additive representing a color to be expressed. The method of claim 4, wherein The color additive, the interior and exterior using waste gypsum, characterized in that the black clay showing black. The method of claim 4, wherein The color additive is an interior and exterior using waste gypsum, characterized in that the compound is formulated as a raw material. The method of claim 4, wherein The color additives, interior and exterior materials using waste gypsum, characterized in that the natural dyes charcoal powder. The method of claim 3, The interior and exterior materials using waste gypsum, characterized in that it further comprises a mustard powder for insect repellent in the mixture. The method of claim 1, The interior and exterior materials are formed in a plate shape having a predetermined thickness, the interior and exterior materials using waste gypsum, characterized in that a plurality of sound-absorbing holes are formed therein. The method of claim 9, The sound absorbing hole, The waste gypsum characterized in that the upper surface of the sound absorbing hole formed on the upper surface of the interior and exterior materials is any one of oval, circular, triangular, rhombic, square. Interior and exterior materials used. The method of claim 9, The sound absorbing hole, The size of the shape of the top surface of the sound absorbing hole formed on the upper surface of the interior and exterior materials is smaller than the shape of the bottom surface of the sound absorbing hole when the internal and external materials are cut into the longitudinal cross-section has a trapezoidal shaped cross section characterized in that Interior and exterior materials used. The method of claim 9, The sound absorbing hole, Waste gypsum, characterized in that the bottom surface of the sound absorbing hole is a ball shape Interior and exterior materials used. (A) grinding the waste gypsum with a grinder; (B) adding a waste paper called water to the waste gypsum pulverized, ocher, general gypsum, cement-based binder, and an aqueous bond to stir and mix to form a primary dough; (C) a secondary kneading step of mixing lime, aqueous primer, sodium aluminate, cement, chopped mortar, and sand to the primary dough to mix; (D) molding the secondary dough into a mold; (E) compressing the molded body with a press to complete a shape; (F) drying the molded body to apply a base coat; And (G) the waste gypsum comprising the step of applying a natural mineral pearlite on the surface of the molded body Method of manufacturing the interior and exterior materials used. The method of claim 13, In the step (B), The loess is 10 to 20% by weight, the waste gypsum is 20 to 35% by weight, the waste paper is 5 to 20% by weight, the general gypsum is 2 to 6% by weight, the cement-based binder is 0.5 to 2% by weight %, Wherein the aqueous bond is 0.2 to 4% by weight Method of manufacturing the interior and exterior materials used. The method of claim 13, In the step (C), The lime is 3 to 8% by weight, the aqueous primer is 2 to 8% by weight, the sodium aluminate is 0.5 to 5% by weight, the cement is 12 to 18% by weight, and the sand is 5 to 15% by weight. Waste gypsum characterized by Method of manufacturing the interior and exterior materials used. The method of claim 13, In the step (E), The process of making the shape, waste gypsum characterized in that the continuous extrusion method Method of manufacturing the interior and exterior materials used. The method of claim 13, In the step (G), The mineral perlite is applied to the waste gypsum, characterized in that it is made using a press machine compressing to a predetermined strength. Method of manufacturing the interior and exterior materials used. The method of claim 13, In the step (G), The pearlite waste gypsum characterized in that it further comprises mustard powder Method of manufacturing the interior and exterior materials used. The method of claim 13, After the step (G), (H) after the molded body is dried waste gypsum characterized in that it further comprises a post-treatment step of rearranging the shape of the interior and exterior with a hook-shaped equipment Method of manufacturing the interior and exterior materials used. The method according to any one of claims 13 to 19, The mold is A base plate forming a bottom surface; An edge portion protruding a predetermined height along an outer circumferential surface of the base plate to form a curing space therein; And A waste gypsum comprising a plurality of protrusions protruding toward the front of the base plate to form a sound absorbing hole Method of manufacturing the interior and exterior materials used. The method of claim 20, The projection is An adjustment lever connected to a lower surface of the protrusion to adjust the size and shape of the outer upper portion of the protrusion; A plurality of rotary blades controlled by the control lever and forming a shape of the protrusion; And The waste gypsum, which is connected to the upper end of the rotatable leaf, is made of an elastic material, and is formed on the outer upper surface of the protrusion to cover the inside of the protrusion. Method of manufacturing the interior and exterior materials used. The method of claim 21, The projection is Corresponding to the shape of the sound absorbing hole, by adjusting the control lever, the size and shape of the outer upper portion of the protrusion is characterized in that the manufacturing method for the interior and exterior using waste gypsum.

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