KR20160115618A - Insulation Material for Construction and Manufacturing Method thereof - Google Patents
Insulation Material for Construction and Manufacturing Method thereof Download PDFInfo
- Publication number
- KR20160115618A KR20160115618A KR1020150043640A KR20150043640A KR20160115618A KR 20160115618 A KR20160115618 A KR 20160115618A KR 1020150043640 A KR1020150043640 A KR 1020150043640A KR 20150043640 A KR20150043640 A KR 20150043640A KR 20160115618 A KR20160115618 A KR 20160115618A
- Authority
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- South Korea
- Prior art keywords
- binder
- mixture
- rice husk
- insulating material
- heat insulating
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000010276 construction Methods 0.000 title abstract description 9
- 239000012774 insulation material Substances 0.000 title abstract description 7
- 239000011230 binding agent Substances 0.000 claims abstract description 51
- 235000007164 Oryza sativa Nutrition 0.000 claims abstract description 47
- 235000009566 rice Nutrition 0.000 claims abstract description 47
- 239000002023 wood Substances 0.000 claims abstract description 31
- 238000003780 insertion Methods 0.000 claims abstract description 24
- 230000037431 insertion Effects 0.000 claims abstract description 24
- 238000009413 insulation Methods 0.000 claims abstract description 22
- 239000010902 straw Substances 0.000 claims abstract description 6
- 239000011810 insulating material Substances 0.000 claims description 52
- 241000209094 Oryza Species 0.000 claims description 46
- 239000000203 mixture Substances 0.000 claims description 37
- 239000010903 husk Substances 0.000 claims description 34
- 239000000463 material Substances 0.000 claims description 33
- 238000000034 method Methods 0.000 claims description 31
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 22
- 239000011347 resin Substances 0.000 claims description 16
- 229920005989 resin Polymers 0.000 claims description 16
- 239000011780 sodium chloride Substances 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000005187 foaming Methods 0.000 claims description 5
- 239000012212 insulator Substances 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims description 3
- 238000010298 pulverizing process Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 3
- 239000002131 composite material Substances 0.000 abstract description 6
- 240000007594 Oryza sativa Species 0.000 abstract 1
- 239000011148 porous material Substances 0.000 description 13
- 239000010410 layer Substances 0.000 description 9
- -1 polyethylene Polymers 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000004566 building material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000002730 additional effect Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 238000009408 flooring Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000011491 glass wool Substances 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920013716 polyethylene resin Polymers 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 240000007651 Rubus glaucus Species 0.000 description 1
- 235000011034 Rubus glaucus Nutrition 0.000 description 1
- 235000009122 Rubus idaeus Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000012615 aggregate Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000004794 expanded polystyrene Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 210000003660 reticulum Anatomy 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/78—Heat insulating elements
- E04B1/80—Heat insulating elements slab-shaped
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
- E04C2/16—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of fibres, chips, vegetable stems, or the like
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
- E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
- E04C2/296—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and non-metallic or unspecified sheet-material
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Building Environments (AREA)
Abstract
Description
The present invention relates to a heat insulating material used for a building such as a house or an apartment, and more particularly, to a heat insulating material for building having excellent heat insulating performance and low manufacturing cost, and a method for manufacturing the same.
Insulation refers to a material that can inhibit or block the movement of heat energy by conduction, convection, radiation. Currently, thermal insulation is used for residential buildings or walls installed on the outer wall or inner wall of a house or a building, a panel used for a core material of a sandwich panel, or a vehicle or a vessel. Refrigeration warehouses, household appliances, and so on. Recently, as the national necessity of reducing energy consumption to reduce energy costs and to reduce environmental pollution problems has come to light, legislation related to the use of insulation materials in buildings is gradually strengthened.
Patent Document 10-0750862 (Composite insulation for building), Patent registration 10-1218238 (Building insulation and method for manufacturing the same), Patent document 10-2013-0041459 (Composite insulation for building), Patent document 10-2014-0087637 Phenol foam based building insulation and building insulation including it).
The heat insulating material is largely divided into an inorganic insulating material and an organic insulating material, and a composite material of an inorganic insulating material and an organic insulating material. Inorganic insulators consist mainly of ceramics, silica, and perlite, which are disadvantageous in that they are excellent in nonflammability but have a low thermal insulation. The organic insulator is mainly composed of expanded polystyrene, expanded polyurethane, foamed polyethylene, etc. It has a disadvantage in that it is low in manufacturing cost and excellent in heat insulation performance, but weak in heat and low in mechanical strength. In recent years, glass wool having high heat insulating property and good nonflammability has been developed as an inorganic insulating material, and has been attracting attention. However, glass wool has a disadvantage in that it is disadvantageous for general use as a thermal insulation material because it is very expensive to manufacture.
SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a heat insulating material for buildings having good heat insulating performance.
Another object of the present invention is to provide a heat insulating material having a low manufacturing cost and excellent mechanical strength and a method of manufacturing the same.
Another object of the present invention is to provide a heat insulating material excellent in fire resistance and a method of manufacturing the same.
Another object of the present invention is to provide a heat insulating material and a method of manufacturing the same that can reduce the noise of a building due to its excellent sound insulating performance and insulation performance.
In order to achieve the above-mentioned object, according to a first aspect of the present invention, there is provided a heat insulating material for use in a building, wherein the heat insulating material is composed of a mixture including wood pulverized material, rice hulls, and a binder.
The construction heat insulating material according to the second aspect of the present invention is characterized in that it is composed of a mixture including a wood crushed material, a reticulum and a binder.
According to a third aspect of the present invention, there is provided a building heat insulating material comprising a mixture including a loess or a raspberry, a wood crushed material and a binder, and has an insertion member therein.
Further, the binder is an inorganic binder.
The mixing ratio of the binder is 5 to 25% by weight.
Characterized in that the mixture further comprises sodium chloride.
And the rice husk is a carbonized rice husk.
And the rice straw is carbonated rice straw.
Further, the insertion member is characterized by having at least one coupling hole.
Further, the insertion member is a foamed resin.
According to a fourth aspect of the present invention, there is provided a method of manufacturing a thermal insulating material for building, comprising the steps of: preparing a mixture including a rice husk or a rice husk and wood crushed material and a binder; and curing the mixture while pressurizing the mixture The method comprising the steps of:
And the binder is an inorganic binder.
The inorganic binder is mixed in an amount of 5 to 25% by weight.
And further mixing the mixture with sodium chloride.
Further, the rice hull or rice husk is carbonized.
According to a fifth aspect of the present invention, there is provided a method of manufacturing a heat insulating material for building, comprising the steps of: preparing a mixture including a rice husk or a rice husk and wood crushed material and a binder; preparing an insert member; Forming a second material layer by laminating the mixture on the upper side of the insertion member, and forming a second material layer by pressing the binder while pressing the laminate as a whole And curing the resin.
And the binder is an inorganic binder.
The inorganic binder is mixed in an amount of 5 to 25% by weight.
And further mixing the mixture with sodium chloride.
And further comprising the step of forming at least one coupling hole in the insertion member.
And the insertion member is a foamed resin.
According to the present invention, the heat insulating material according to the present invention can realize a heat insulating material having a low thermal conductivity and an excellent mechanical strength.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an outer shape of a heat insulating material for construction according to a first embodiment of the present invention; FIG.
2 is a cross-sectional view showing a cross-sectional shape of a heat insulating material for construction according to a second embodiment of the present invention.
Fig. 3 is a perspective view showing an outer shape of the
Hereinafter, embodiments according to the present invention will be described with reference to the drawings. However, the embodiments described below represent one preferred embodiment of the present invention, and examples of such embodiments are not intended to limit the scope of the present invention. Those skilled in the art will readily understand that the present invention can be carried out in various ways without departing from the technical idea thereof.
First, the basic concept of the present invention will be described.
Buildings are constructed using various materials. Examples of the material used for building construction include metal materials such as iron, mortar materials such as concrete / cement, brick and lime, aggregates such as tile, stone, plate, wood, glass and gravel, moistureproof materials such as polyethylene and polypropylene, They are very diverse, such as systems, paper-based wallpaper, and plastic flooring.
The thermal conductivity of the material is approximately 50 to 370 (W / mK) for iron and other metal materials, approximately 1 to 2.5 (W / mK) for concrete / cement, 0.2 to 1 (W / mK) (W / mK), the stone is about 1 to 2.8 (W / mK), the wood is about 0.13 to 0.19 (W / mK) (W / mK), 0.17 ~ 0.27 (W / mK) for wallpaper and 0.19 (W / mK) for flooring, respectively.
Therefore, when building is built, insulation is attached to the inner wall or outer wall of the building in consideration of the cooling and heating of the building. A heat insulating material used for such a purpose usually employs a foaming resin foamed with polystyrene, polyurethane, polyethylene resin or the like. These foamed resins have an advantage that the thermal conductivity is approximately 0.04 (W / mK) or less and the thermal conductivity is very low and light, and the manufacturing cost is very low. However, since the heat insulating material using such a foaming resin is very weak in heat, when a fire or the like occurs in the building, there is a fatal disadvantage that it can act as a main factor for burning the entire building.
As described above, the conventional heat insulating material has a disadvantage in thermal conductivity in the case of a heat insulating material using an inorganic material having flame resistance, and is disadvantageous in flame retardancy in a case of a foamed resin having a high thermal conductivity.
One of the most effective known insulation materials is air, especially air in a stationary state. Polystyrene, polyurethane, polyethylene resin and the like which are conventionally used as effective insulating materials are not insulated per se. These organic resins must inevitably undergo a foaming process in order to become an insulating material. When the organic resin is foamed, a large amount of pore layer, that is, a stopped air layer, is produced in the resin. By this pore layer, the foaming resin has an effective effect as a heat insulating material.
Among the above building materials, wood has a relatively good thermal conductivity compared to other materials. When wood is processed, by-products such as sawdust are essentially produced. By combining these sawdust to make the board, it is possible to form more pores in the board than the original wood. The size and number of pores will depend on the pressure applied to the material when manufacturing the board. This is the same for wood flourized wood. Especially in the case of sawdust or wood flour, it is easily combined with an inorganic binder having flame retardancy. The present inventors have found that the thermal conductivity of the board can be lowered to 0.09 (W / mK) or less, more preferably 0.06 (W / mK) or less, when the board is manufactured by combining sawdust or wood powder with an inorganic binder .
According to the research conducted by the present inventors, it has been confirmed that the above-mentioned heat insulating material, porous materials such as rice hulls and rice husks, which can be easily obtained at the periphery, can provide a considerable heat insulating effect. The rice husk and rice husk contains a large amount of pores. These pores provide an additional effect of providing sound absorption and sound insulation as well as lowering the thermal conductivity.
When sawdust or wood, rice hulls, or rice cakes are combined with an inorganic binder to produce a board, it has the following characteristics.
1. Low thermal conductivity.
2. It has higher mechanical strength than foam organic material insulation.
3. Because it contains many pores, it is very light in weight.
4. Has flame retardancy.
5. The manufacturing cost is low.
As a result, the material formed by combining sawdust or wood, rice husk, and rice husk with an inorganic binder exhibits a thermal conductivity equal to that of conventional foamed resin, and has excellent characteristics as a building material.
The present invention provides a heat insulating material having excellent mechanical strength and flame retardancy while having a thermal conductivity equal to that of a conventional thermal insulating material using a material having excellent characteristics as a building material.
1 is a perspective view showing a structure of a heat insulating material according to a first embodiment of the present invention.
In Fig. 1,
Further, in another embodiment of the present embodiment, as the material of the
Further, in another embodiment of the present embodiment, both the rice husk and the rice straw can be mixed with the wood crushed material.
Also, the mixture may be suitably mixed with the binder. As the binder, both an organic binder and an inorganic binder can be employed. In consideration of the flame retardancy of the
As a method of manufacturing the composite heat insulating material according to this embodiment, the wood crushed material, the rice husk, the rice husk, and the binder are mixed in a mixer. Wherein the binder admixes approximately 5 to 25% by weight with respect to the other mixture. Then, the mixture is transferred to an extrusion roller and extruded, or pressurized using, for example, a hydraulic press to produce a square or rectangular board. Of course, the size and shape of the heat insulating material are not limited to specific ones.
The heat insulating material according to this embodiment exhibits a very low thermal conductivity due to the pores formed in the wood crushed material, the rice husk or the rice husk, and the pores formed between the mixture. Particularly, rice hulls and rice husks are provided with various sizes of pores. When there are various sizes of pores in the medium in which the sound energy is transmitted, the sound absorption and sound insulation functions of the medium are further improved as compared with the medium in which the pores are formed in a single size.
Therefore, when the heat insulating material according to the above embodiment is used as a heat insulating material of a building, it is possible to provide effective heat insulating effect and reduce the interlayer noise.
2 is a sectional view showing the construction of a
In the present embodiment, an inserting
In the case of manufacturing the heat insulating material, first, a mixture of rice hull or rice husk, wood crushed material and binder is laminated to form a one-layer material layer, and the
In the above-described manufacturing process, the upper and lower side mixture of the
In the present embodiment, the
Also, in this embodiment, the
The embodiments according to the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and various modifications may be made without departing from the technical spirit of the present invention.
10, 20: insulation, 30: insertion member.
31: Combination ball.
Claims (30)
And a mixture comprising wood pulverized material, rice husk, and binder.
Wherein the binder is an inorganic binder.
Wherein the mixing ratio of the binder is 5 to 25% by weight.
Characterized in that the mixture further comprises sodium chloride.
Wherein the rice husk is carbonized rice husk.
Characterized in that the mixture further comprises an aggregate.
In the insulation used in buildings,
Wherein the binder is an inorganic binder.
Wherein the mixing ratio of the binder is 5 to 25% by weight.
Characterized in that the mixture further comprises sodium chloride.
Wherein the ridge is a carbonized ridge.
A mixture comprising a loess or a straw, wood pulverization water and a binder,
And an inserting member is provided in the inside of the insulator.
Wherein the insertion member comprises at least one coupling hole.
Wherein the binder is an inorganic binder.
Wherein the mixing ratio of the binder is 5 to 25% by weight.
Characterized in that the mixture further comprises sodium chloride.
Wherein the ridge is a carbonized ridge.
Wherein the rice husk is carbonized rice husk.
Wherein the inserting member is a foamed resin.
Preparing a mixture comprising a rice husk or a rice husk and wood crushing water and a binder,
And curing the binder while pressurizing the mixture. ≪ RTI ID = 0.0 > 21. < / RTI >
Wherein the binder is an inorganic binder.
Wherein the inorganic binder is mixed in an amount of 5 to 25% by weight.
And mixing the mixture with sodium chloride. ≪ RTI ID = 0.0 > 11. < / RTI >
Wherein the rice husk or the rice husk is carbonized.
Preparing a mixture comprising a rice husk or a rice husk and wood crushing water and a binder,
Preparing an insertion member,
Laminating the mixture to form a first material layer,
Disposing the insertion member above the first material layer,
Laminating the mixture on the upper side of the insertion member to form a second material layer,
And curing the binder while pressurizing the laminate as a whole. ≪ RTI ID = 0.0 > 18. < / RTI >
Wherein the binder is an inorganic binder.
Wherein the inorganic binder is mixed in an amount of 5 to 25% by weight.
And mixing the mixture with sodium chloride. ≪ RTI ID = 0.0 > 11. < / RTI >
Further comprising the step of forming at least one bonding hole in the insertion member.
Wherein the inserting member is a foaming resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150043640A KR20160115618A (en) | 2015-03-27 | 2015-03-27 | Insulation Material for Construction and Manufacturing Method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150043640A KR20160115618A (en) | 2015-03-27 | 2015-03-27 | Insulation Material for Construction and Manufacturing Method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20160115618A true KR20160115618A (en) | 2016-10-06 |
Family
ID=57164451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020150043640A KR20160115618A (en) | 2015-03-27 | 2015-03-27 | Insulation Material for Construction and Manufacturing Method thereof |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20160115618A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20210019145A (en) * | 2019-08-12 | 2021-02-22 | 한성섭 | Insulating wall structure using chaff charcoal and method for manufacturing the same |
-
2015
- 2015-03-27 KR KR1020150043640A patent/KR20160115618A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20210019145A (en) * | 2019-08-12 | 2021-02-22 | 한성섭 | Insulating wall structure using chaff charcoal and method for manufacturing the same |
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