KR102483897B1 - Aerated concrete containing rice husk and its manufacturing method - Google Patents
Aerated concrete containing rice husk and its manufacturing method Download PDFInfo
- Publication number
- KR102483897B1 KR102483897B1 KR1020220025995A KR20220025995A KR102483897B1 KR 102483897 B1 KR102483897 B1 KR 102483897B1 KR 1020220025995 A KR1020220025995 A KR 1020220025995A KR 20220025995 A KR20220025995 A KR 20220025995A KR 102483897 B1 KR102483897 B1 KR 102483897B1
- Authority
- KR
- South Korea
- Prior art keywords
- rice hull
- mixer
- weight
- aerated concrete
- feeding
- Prior art date
Links
- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 49
- 235000009566 rice Nutrition 0.000 title claims abstract description 49
- 239000004567 concrete Substances 0.000 title claims abstract description 27
- 239000010903 husk Substances 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 240000007594 Oryza sativa Species 0.000 title 1
- 241000209094 Oryza Species 0.000 claims abstract description 48
- 239000004568 cement Substances 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000006260 foam Substances 0.000 claims abstract description 8
- 239000010883 coal ash Substances 0.000 claims abstract description 7
- 239000004576 sand Substances 0.000 claims abstract description 7
- 239000003381 stabilizer Substances 0.000 claims abstract description 4
- 239000011248 coating agent Substances 0.000 claims description 13
- 239000010410 layer Substances 0.000 claims description 13
- 238000007654 immersion Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 7
- 239000011253 protective coating Substances 0.000 claims description 7
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- FMCGSUUBYTWNDP-ONGXEEELSA-N (1R,2S)-2-(dimethylamino)-1-phenyl-1-propanol Chemical compound CN(C)[C@@H](C)[C@H](O)C1=CC=CC=C1 FMCGSUUBYTWNDP-ONGXEEELSA-N 0.000 claims description 3
- 229940043375 1,5-pentanediol Drugs 0.000 claims description 3
- 239000004342 Benzoyl peroxide Substances 0.000 claims description 3
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 3
- FMCGSUUBYTWNDP-UHFFFAOYSA-N N-Methylephedrine Natural products CN(C)C(C)C(O)C1=CC=CC=C1 FMCGSUUBYTWNDP-UHFFFAOYSA-N 0.000 claims description 3
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 3
- 229910001629 magnesium chloride Inorganic materials 0.000 claims description 3
- 229940073569 n-methylephedrine Drugs 0.000 claims description 3
- WCVRQHFDJLLWFE-UHFFFAOYSA-N pentane-1,2-diol Chemical compound CCCC(O)CO WCVRQHFDJLLWFE-UHFFFAOYSA-N 0.000 claims description 3
- 239000005011 phenolic resin Substances 0.000 claims description 3
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims description 3
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 2
- 239000002033 PVDF binder Substances 0.000 claims description 2
- 239000011575 calcium Substances 0.000 claims description 2
- 229910052791 calcium Inorganic materials 0.000 claims description 2
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 2
- 239000006261 foam material Substances 0.000 claims description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 2
- 229960003328 benzoyl peroxide Drugs 0.000 claims 1
- 229960002337 magnesium chloride Drugs 0.000 claims 1
- 239000004575 stone Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 abstract description 4
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000009413 insulation Methods 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- 239000011381 foam concrete Substances 0.000 description 6
- 239000006227 byproduct Substances 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 238000007598 dipping method Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 239000004088 foaming agent Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920001568 phenolic resin Polymers 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000003516 soil conditioner Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/18—Waste materials; Refuse organic
- C04B18/24—Vegetable refuse, e.g. rice husks, maize-ear refuse; Cellulosic materials, e.g. paper, cork
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C3/00—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material
- B05C3/02—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material
- B05C3/04—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material with special provision for agitating the work or the liquid or other fluent material
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/06—Quartz; Sand
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
- C04B18/08—Flue dust, i.e. fly ash
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
- C04B18/10—Burned or pyrolised refuse
- C04B18/101—Burned rice husks or other burned vegetable material
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/04—Heat treatment
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1018—Coating or impregnating with organic materials
- C04B20/1022—Non-macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1018—Coating or impregnating with organic materials
- C04B20/1029—Macromolecular compounds
- C04B20/1037—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0032—Controlling the process of mixing, e.g. adding ingredients in a quantity depending on a measured or desired value
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
본 발명은 건축용 기포 콘크리트에 관한 것으로서, 더욱 상세하게는 건축 슬라브 재료인 기포 콘크리트 조성물에 농산물 부산물인 왕겨를 혼합 사용하여 에너지 효율 및 자원 활용 효율을 향상시키기 위한 기포 콘크리트 조성 및 그 제조방법에 관한 것이다.The present invention relates to aerated concrete for construction, and more particularly, to an aerated concrete composition for improving energy efficiency and resource utilization efficiency by mixing rice hull, an agricultural by-product, with an aerated concrete composition, which is a building slab material, and a method for manufacturing the same. .
일반적으로 기포 콘크리트는 공동주택의 바닥 단열층에 사용되는 시멘트 2차 제품으로, 최근 들어 건물의 단열 및 방음에 대한 관심이 강화되면서 경량 기포 콘크리트를 사용하고 있다.In general, aerated concrete is a cement secondary product used for the floor insulation layer of apartment houses, and as interest in thermal insulation and sound insulation of buildings has recently increased, lightweight aerated concrete has been used.
즉, 건축용으로 사용되는 기포 콘크리트는 온돌의 단열용, 바닥 슬래브 단열용, 방수층 보호용, 진동을 방지하기 위한 완충용으로 사용되고 있다.That is, aerated concrete used for construction is used for insulation of ondol, floor slab insulation, waterproof layer protection, and buffer to prevent vibration.
하지만, 종래의 바닥 슬래브용 경량 기포 콘크리트는 시멘트의 함량이 높으면서도 압축강도와 단열성이 낮게 나타나 용도의 한계와 적용성 평가에 문제점이 있었다.However, the conventional lightweight aerated concrete for floor slabs has a high cement content and low compressive strength and heat insulation, which has problems in its application limitations and applicability evaluation.
본 발명은 상기한 종래 기술에서의 문제점을 개선하기 위해 제안된 것으로서, 농산물 부산물로 폐기되던 왕겨의 순환자원 활용과 함께 기포 콘크리트의 균열방지, 단열성 향상을 위해 혼합 사용이 이루어지도록 하고, 콘크리트 제조비용을 절감시키도록 하는데 목적이 있다.The present invention has been proposed to improve the above problems in the prior art, so that mixed use is made to prevent cracking of aerated concrete and improve insulation properties, along with utilization of recycled resources of rice hulls discarded as agricultural by-products, and concrete manufacturing cost is aimed at reducing
상기 목적을 이루기 위한 본 발명의 기포 콘크리트 제조방법은, 믹서통에 물을 투입하는 물 투입단계와; 상기 믹서통에 시멘트를 모래, 석탄재와 함께 투입하는 시멘트 투입단계와; 상기 믹서통에 재생펄프를 투입하는 재생펄프 투입단계와; 상기 믹서통에 유동화제를 투입하는 유동화제 투입단계와; 상기 믹서통에 왕겨를 투입하는 왕겨 투입단계와; 상기 믹서통에 발포기를 이용하여 거품을 투여하는 거품 투여단계;를 포함하는 것을 특징으로 한다.The aerated concrete manufacturing method of the present invention for achieving the above object includes the step of adding water to the mixer; A cement input step of injecting cement together with sand and coal ash into the mixer; a recycled pulp inputting step of inputting recycled pulp into the mixer; a fluidizing agent input step of injecting a fluidizing agent into the mixer; A rice hull input step of introducing rice hull into the mixer; It is characterized in that it comprises a; foam dispensing step of administering foam using a foamer to the mixer barrel.
또한, 본 발명의 기포 콘크리트는, 시멘트 30~60중량%, 물 15~55중량%, 모래 3~15중량%, 석탄재 2~10중량%, 왕겨 3~35중량%, 재생펄프 0.5~20중량%, 기포재 0.1~8중량%, 유동화제 0.05~5중량%의 비율로 혼합 조성을 이루는 것을 특징으로 한다.In addition, the aerated concrete of the present invention contains 30 to 60% by weight of cement, 15 to 55% by weight of water, 3 to 15% by weight of sand, 2 to 10% by weight of coal ash, 3 to 35% by weight of rice husk, and 0.5 to 20% by weight of recycled pulp. %, foam material 0.1 to 8% by weight, fluidizer 0.05 to 5% by weight characterized in that the mixed composition is formed.
이러한 본 발명의 기포 콘크리트는, 왕겨가 함유됨으로써 콘크리트층의 내구성 향상에 따른 균열 발생이 방지됨과 함께 열전도율이 향상되는 효과를 나타내게 된다.The aerated concrete of the present invention, by containing the rice husk, exhibits the effect of improving the thermal conductivity while preventing cracks due to the improvement of durability of the concrete layer.
또한, 왕겨 첨가를 통한 시멘트 사용량 및 이에 따른 비용을 절감시킬 수 있게 된다.In addition, it is possible to reduce the amount of cement used and the cost thereof through the addition of rice hulls.
도 1은 본 발명의 일 실시 예에 따른 기포콘크리트 제조과정 순서도.
도 2는 본 발명의 다른 실시 예에 따른 왕겨 침지수조 개략 구조도.
도 3은 본 발명의 다른 실시 예에서의 왕겨 단면 확대도.1 is a flow chart of a foamed concrete manufacturing process according to an embodiment of the present invention.
2 is a schematic structural diagram of a rice hull immersion tank according to another embodiment of the present invention.
3 is an enlarged cross-sectional view of rice hulls in another embodiment of the present invention.
이하, 본 발명의 구체적인 실시 예를 첨부 도면을 참조하여 상세히 살펴보기로 한다.Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.
본 발명의 실시 예는 여러 가지 형태로 변형될 수 있으며, 본 발명의 범위가 아래에서 상세히 설명하는 실시 예로 한정되는 것으로 해석되어서는 안 된다. 본 실시 예는 당 업계에서 평균적인 지식을 가진 자에게 본 발명을 더욱 완전하게 설명하기 위하여 제공되는 것이다.Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the examples described in detail below. This embodiment is provided to more completely explain the present invention to those skilled in the art.
따라서, 도면에서 표현한 구성요소의 형상 등은 더욱 명확한 설명을 강조하기 위해서 과장되어 표현될 수 있다. 각 도면에서 동일한 구성은 동일한 참조부호로 도시한 경우가 있음을 유의하여야 한다. 또한, 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 공지 기술의 기능 및 구성에 관한 상세한 설명은 생략될 수 있다.Therefore, the shape of the component expressed in the drawings may be exaggerated to emphasize a clearer explanation. It should be noted that in each drawing, the same configuration may be indicated by the same reference numerals. In addition, detailed descriptions of functions and configurations of known technologies that may unnecessarily obscure the subject matter of the present invention may be omitted.
먼저, 본 발명의 일 실시 예에 따른 기포 콘크리트 제조과정을 도 1의 순서도를 통해 살펴보면 다음과 같다.First, looking at the process of manufacturing aerated concrete according to an embodiment of the present invention through the flow chart of FIG. 1 is as follows.
<물 투입단계>(ST 1)<Water input step> (ST 1)
본 실시 예에서는 먼저 믹서통에 물을 일정량(약 15~55중량%) 투입하는 물 투입단계를 실시하게 된다.In this embodiment, first, a water input step of introducing a certain amount (about 15 to 55% by weight) of water into the mixer is performed.
<시멘트 투입단계>(ST 2)<Cement input step> (ST 2)
이후, 상기 믹서통에 포틀랜드 시멘트를 모래, 석탄재와 함께 투입하게 되는데, 이때에는 총 중량 대비 시멘트 30~60중량%, 모래 3~15중량%, 석탄재 2~10중량%의 비율로 투입이 이루어짐이 바람직하다.Then, Portland cement is added together with sand and coal ash into the mixer container, and at this time, the input is made at a ratio of 30 to 60% by weight of cement, 3 to 15% by weight of sand, and 2 to 10% by weight of coal ash relative to the total weight. desirable.
<재생펄프 투입단계>(ST 3)<Recycled pulp input step> (ST 3)
그리고, 상기 믹서통에 재생펄프를 0.5~20중량%로 투입하는 단계를 실시한다.Then, a step of introducing recycled pulp into the mixer container at 0.5 to 20% by weight is performed.
<유동화제 투입단계>(ST 4)<Injecting fluidizing agent> (ST 4)
이후, 상기 믹서통에 유동화제 0.05~5중량%를 안정제와 함께 투입하는 작업을 실시한다.Thereafter, an operation of adding 0.05 to 5% by weight of a fluidizing agent together with a stabilizer to the mixer barrel is performed.
이때, 투입이 이루어지는 안정제는 아크릴에멀젼, SBR라텍스에멀젼, EVA, 코폴리머, PVA, MC가 선택적으로 사용될 수 있다.At this time, as the stabilizer to be injected, acrylic emulsion, SBR latex emulsion, EVA, copolymer, PVA, and MC may be selectively used.
<왕겨 투입단계>(ST 5)<Rice hull insertion step> (ST 5)
한편, 상기 재료의 순차적인 투입이 완료되면 최종적으로 믹서통에 농산물 부산물인 왕겨를 5~35중량%로 투입하게 된다.On the other hand, when the sequential input of the materials is completed, 5 to 35% by weight of rice hull, a by-product of agricultural products, is finally added to the mixer.
이때 투입되는 왕겨는 규소질(실리카)로 된 거칠고 울뚝불뚝한 외피와, 일반 목질 재료와 같은 리그닌셀룰로즈 성분의 내피로 이루어진 섬유질 구조를 이루는 것으로, 열전도열이 0.03~0.04 W/mk의 난연 특성을 갖는다.The rice husk introduced at this time has a fibrous structure composed of a rough and uneven outer skin made of silicon (silica) and an inner skin made of lignin cellulose like a general wood material, and has a flame retardant property of 0.03 to 0.04 W/mk in heat conduction heat. have
또한, 이때에는 왕겨의 보존성 향상을 위한 기능성 물질이 추가로 첨가될 수 있는데, 이때에는 실리콘카바이드, 칼슘설포알루미네이트계 팽창재, 폴리플루오르화비닐리덴, 플로로카본 성분이 각각 1~5중량%로 혼합이 선택적으로 이루어짐이 바람직하다.In addition, at this time, a functional material for improving the preservation of rice hull may be additionally added. It is preferred that mixing is selective.
이때 첨가되는 기능성 물질 중 실리콘카바이드는 콘크리트의 내화성을 향상시키고, 칼슘설포알루미네이트계 팽창재는 이후 투여될 기포제의 촉매 기능을 통해 발포 시간을 단축시킬 수 있으며, 폴리플루오르화비닐리덴 및 플로로카본은 각각 혼합 성분 간의 결합력 증대 및 밀도를 향상시키는 진보된 작용효과를 나타낼 수 있게 된다.Among the functional materials added at this time, silicon carbide improves the fire resistance of concrete, calcium sulfoaluminate-based expansion material can shorten the foaming time through the catalytic function of the foaming agent to be administered later, and polyvinylidene fluoride and fluorocarbon It is possible to exhibit an advanced action effect of increasing the bonding strength and improving the density between each mixed component.
<거품 투여단계>(ST 6)<Foam injection step> (ST 6)
그리고, 상기 각 재료의 투입이 완료되면 믹서통에 발포기를 이용하여 기포제를 0.1~8중량%로 투여함으로써 본 발명의 기포콘크리트 제조가 완료되어지게 된다.And, when the input of each of the above materials is completed, the production of the foamed concrete of the present invention is completed by injecting a foaming agent in an amount of 0.1 to 8% by weight using a foaming machine in the mixer.
상기 과정을 통해, 왕겨가 일정 비율로 함유되어 제조가 이루어진 본 발명의 왕겨 기포콘크리트를 온수파이프 및 철근이 구성된 건축물의 바닥에 타설 시공을 하게 되면, 단열 및 난방의 슬라브층이 형성되어지게 된다.Through the above process, when the rice hull foamed concrete of the present invention, which is manufactured by containing rice hull at a certain ratio, is poured on the floor of a building composed of hot water pipes and reinforcing bars, a slab layer for insulation and heating is formed.
이와 같이 시공이 이루어진 슬라브층은 왕겨 자체의 우수한 열전도율 및 내구성으로 인해 기존에 비해 콘크리트 강도가 향상됨과 함께 균열 발생이 방지될 수 있게 된다.The slab layer constructed in this way can be prevented from cracking while improving the strength of concrete compared to the conventional one due to the excellent thermal conductivity and durability of the rice husk itself.
특히, 왕겨가 첨가된 기포콘크리트는 왕겨 외피의 미세한 실리카 구조와, 왕겨 내피의 셀룰로오스 섬유질 성분으로 인해 기포콘크리트 양생시 적절한 팽창계수를 조절하여 우선적인 크랙 발생을 방지할 수 있게 된다.In particular, due to the fine silica structure of the rice husk outer shell and the cellulose fiber component of the rice husk inner shell, the foamed concrete to which rice hull is added can prevent preferential cracking by adjusting the appropriate expansion coefficient during curing of the foamed concrete.
또한, 왕겨 자체의 우수한 열전도율과 강도 향상으로 인해 흡음과 충격 완화성을 상승시키는 기능성을 제공하게 된다.In addition, due to the excellent thermal conductivity and strength improvement of the rice husk itself, it provides functionality to increase sound absorption and impact mitigation.
또한, 왕겨가 첨가된 본 발명의 왕겨 기포콘크리트는 기존 석유화학계열인 스틸폴, EVA수지, 우레탄폼 제품들로 된 폐건축자재들의 소각에 따른 탄소배출과 대기오염 발생의 문제가 해소될 수 있게 됨과 함께 사용 후 토양개량제로 활용이 가능하게 되어 자원 순환효율을 향상시키는 이점을 나타낸다.In addition, the rice hull aerated concrete of the present invention to which rice hull is added can solve the problem of carbon emission and air pollution caused by the incineration of waste building materials made of existing petrochemical steel poles, EVA resin, and urethane foam products. It also shows the advantage of improving resource circulation efficiency as it can be used as a soil conditioner after use.
따라서 본 발명의 기포 콘크리트는, 왕겨가 함유됨으로써 콘크리트층의 내구성 향상에 따른 균열 발생이 방지됨과 함께 열전도율이 향상되는 효과를 나타내게 된다.Therefore, the aerated concrete of the present invention, by containing the rice hull, exhibits the effect of improving the thermal conductivity while preventing the occurrence of cracks due to the improvement of durability of the concrete layer.
또한, 왕겨 첨가를 통한 시멘트 사용량 및 이에 따른 비용을 절감시킬 수 있게 된다.In addition, it is possible to reduce the amount of cement used and the cost thereof through the addition of rice hulls.
한편, 도 2 및 도 3은 본 발명의 다른 실시 예를 나타낸 것으로서, 본 발명의 왕겨 투입단계(ST 5)에서 투입되는 왕겨(10)는 고온 가열을 통해 탄화된 왕겨의 투입이 이루어지되, 상기 탄화 왕겨(10)는 코팅제가 일정 수위로 저장되는 침지조에 투입하여 일정 시간 침지 과정을 통해 표면에 보호 코팅층(11)을 코팅시키는 코팅 과정이 추가로 실시된다.On the other hand, FIGS. 2 and 3 show another embodiment of the present invention, in which the
이때, 상기 코팅제는 열경화성의 페놀수지 25~40중량%, 펜틸렌글라이콜 10~30중량%, 마그네슘클로라이드 10~20중량%, N-메틸에페드린 5~20중량%, 벤조일퍼옥사이드 10~20중량%, 소듐폴리아크릴레이트 1~20중량%의 비율로 혼합 조성을 이룸이 바람직하다.At this time, the coating agent is a thermosetting phenolic resin 25 to 40% by weight,
또한, 침지조(20) 일측에는 코팅제를 일정 온도로 유지시키기 위한 전열봉(21)이 구성되고, 침지조 바닥면에는 코팅제에 침지된 왕겨의 순환 유동성 향상을 위한 순환 노즐(22)이 구성되고, 상기 침지조(20) 중단에는 순환노즐에 의한 유동력을 측방으로 안내하기 위한 가이드 돌부(23)가 일정 경사면을 형성하는 삼각형의 단면 구조를 이루어 구성된 것을 확인할 수 있다.In addition, a
이와 같은 방법에 따른 왕겨 기포콘크리트의 제조가 이루어지게 되면, 왕겨(10)의 탄화를 통한 탈취기능이 향상됨과 함께 보호 코팅층(11)으로 인해 왕겨(10)의 형상이 안정적으로 유지되어 투입 과정에서 파손되거나 분말화 현상이 방지될 수 있게 된다.When the rice hull aerated concrete is manufactured according to this method, the deodorization function through carbonization of the
특히, 보호 코팅층(11)의 형성을 위해 탄화 왕겨(10)를 침지조(20)에 투입시키는 과정에서 코팅제는 전열봉(21)에 의해 20~50℃로 유지됨과 함께 순환 노즐(22) 및 가이드 돌부(23) 구성으로 인해 왕겨의 순환 유동이 지속적으로 이루어질 수 있게 되어 왕겨 입자의 뭉침 현상이 방지될 수 있게 되고, 박막으로의 표면 코팅이 안정적으로 이루어질 수 있게 된다.In particular, in the process of putting the carbonized rice husk 10 into the dipping
또한, 보호 코팅층(11)에는 펜틸렌글라이콜 및 마그네슘클로라이드 성분이 혼합되어 있기 때문에 코팅 내구성이 안정적으로 유지될 수 있게 되며, N-메틸에페드린은 페놀수지의 촉매 작용을 통한 결합력 및 접착력이 향상될 수 있게 된다. 또한, 추가 첨가된 벤조일퍼옥사이드 및 소듐폴리아크릴레이트는 각각 보호 코팅층(11)의 표면 마찰력 증대에 따른 시멘트 입자와의 결합력이 증대됨과 함께 변색 및 변질을 방지하는 진보된 기능을 수행하게 된다.In addition, since pentylene glycol and magnesium chloride are mixed in the
그리고, 상기에서 본 발명의 특정한 실시 예가 설명 및 도시되었지만 본 발명의 왕겨 기포콘크리트 제조과정이 당업자에 의해 다양하게 변형되어 실시될 수 있음은 자명한 일이다. In addition, although specific embodiments of the present invention have been described and illustrated above, it is obvious that the rice husk foam concrete manufacturing process of the present invention can be variously modified and practiced by those skilled in the art.
그러나 이와 같은 변형된 실시 예들은 본 발명의 기술적 사상이나 범위로부터 개별적으로 이해되어져서는 안되며, 이와 같은 변형된 실시 예들은 본 발명의 첨부된 특허청구범위 내에 포함된다 해야 할 것이다.However, such modified embodiments should not be individually understood from the technical spirit or scope of the present invention, and such modified embodiments should be included within the scope of the appended claims of the present invention.
10 : 왕겨 11 : 보호 코팅층
20 : 침지조 21 : 전열봉10: chaff 11: protective coating layer
20: immersion tank 21: electric heating bar
Claims (5)
상기 믹서통에 시멘트를 모래, 석탄재와 함께 투입하는 시멘트 투입단계와;(ST 2)
상기 믹서통에 재생펄프를 투입하는 재생펄프 투입단계와;(ST 3)
상기 믹서통에 유동화제를 안정제와 함께 투입하는 유동화제 투입단계와;(ST 4)
상기 믹서통에 고온 가열을 통해 탄화된 왕겨의 투입이 이루어지되, 상기 탄화 왕겨는 코팅제가 일정 수위로 저장되는 침지조에 투입하여 일정 시간 침지 과정을 통해 표면에 보호 코팅층을 코팅시키는 코팅 과정이 추가로 실시되며, 상기 코팅제는 페놀수지, 펜틸렌글라이콜, 마그네슘클로라이드, N-메틸에페드린, 벤조일퍼옥사이드, 소듐폴리아크릴레이트의 혼합 조성을 이루는 왕겨 투입단계와;(ST 5)
상기 믹서통에 발포기를 이용하여 거품을 투여하는 거품 투여단계;(ST 6)
를 포함하는 것을 특징으로 하는 왕겨가 함유된 기포 콘크리트 제조방법.A water input step of injecting water into the mixer; (ST 1)
A cement input step of injecting cement together with sand and coal ash into the mixer container; (ST 2)
A recycled pulp inputting step of inputting recycled pulp into the mixer; (ST 3)
A fluidizing agent input step of injecting a fluidizing agent together with a stabilizer into the mixer container; (ST 4)
The carbonized rice hull is added to the mixer through high-temperature heating, and the carbonized rice hull is put into an immersion tank in which the coating agent is stored at a certain level, and a coating process of coating a protective coating layer on the surface through a immersion process for a certain period of time is additionally performed. The coating agent is a rice hull input step forming a mixed composition of phenol resin, pentylene glycol, magnesium chloride, N-methylephedrine, benzoyl peroxide, and sodium polyacrylate; (ST 5)
A foam dispensing step of dispensing foam to the mixer barrel using a foamer; (ST 6)
A method for producing aerated concrete containing rice hull, characterized in that it comprises a.
상기 왕겨 투입단계(ST 5) 에서의 침지조 일측에는 코팅제를 일정 온도로 유지시키기 위한 전열봉이 구성되고, 침지조 바닥면에는 코팅제에 침지된 왕겨의 순환 유동성 향상을 위한 순환 노즐이 구성되며, 상기 침지조 중단에는 순환노즐에 의한 유동력을 측방으로 안내하기 위한 가이드 돌부가 일정 경사면을 형성하는 삼각형의 단면 구조를 이루어 구성된 것을 특징으로 하는 왕겨가 함유된 기포 콘크리트 제조방법.The method of claim 3,
In the rice hull inputting step (ST 5), a heating rod for maintaining the coating agent at a constant temperature is configured on one side of the immersion tank, and a circulation nozzle is configured on the bottom surface of the immersion tank to improve circulation fluidity of the rice hull immersed in the coating agent. A method for producing aerated concrete containing rice hull, characterized in that in the middle of the immersion tank, a guide stone for guiding the flow force by the circulation nozzle laterally forms a triangular cross-sectional structure forming a certain inclined surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020220025995A KR102483897B1 (en) | 2022-02-28 | 2022-02-28 | Aerated concrete containing rice husk and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020220025995A KR102483897B1 (en) | 2022-02-28 | 2022-02-28 | Aerated concrete containing rice husk and its manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR102483897B1 true KR102483897B1 (en) | 2023-01-04 |
Family
ID=84924986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020220025995A KR102483897B1 (en) | 2022-02-28 | 2022-02-28 | Aerated concrete containing rice husk and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR102483897B1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0986995A (en) * | 1995-09-27 | 1997-03-31 | Agency Of Ind Science & Technol | Composition for lightweight building material and production of lightweight building material |
| KR20000052017A (en) * | 1999-01-28 | 2000-08-16 | 정순착 | Method and structure of manufacturing a cellular concrete using a powdered forming agent |
| KR20050082083A (en) * | 2004-02-17 | 2005-08-22 | 한국후라이애쉬시멘트공업(주) | Concrete compositions using bottom ash and method of making |
| KR100911325B1 (en) * | 2008-04-15 | 2009-08-10 | 태원물산주식회사 | Composition for reducing the noise of the floor and method for using the composition |
| KR101406501B1 (en) | 2013-12-09 | 2014-06-27 | 이재수 | Manufacturing Apparatus of mortar bubble concrete and Method thereof |
| KR101740700B1 (en) | 2017-01-09 | 2017-05-26 | 이호준 | Lightweight foamed concrete with improved insulation and soundproofing |
-
2022
- 2022-02-28 KR KR1020220025995A patent/KR102483897B1/en active IP Right Grant
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0986995A (en) * | 1995-09-27 | 1997-03-31 | Agency Of Ind Science & Technol | Composition for lightweight building material and production of lightweight building material |
| KR20000052017A (en) * | 1999-01-28 | 2000-08-16 | 정순착 | Method and structure of manufacturing a cellular concrete using a powdered forming agent |
| KR20050082083A (en) * | 2004-02-17 | 2005-08-22 | 한국후라이애쉬시멘트공업(주) | Concrete compositions using bottom ash and method of making |
| KR100911325B1 (en) * | 2008-04-15 | 2009-08-10 | 태원물산주식회사 | Composition for reducing the noise of the floor and method for using the composition |
| KR101406501B1 (en) | 2013-12-09 | 2014-06-27 | 이재수 | Manufacturing Apparatus of mortar bubble concrete and Method thereof |
| KR101740700B1 (en) | 2017-01-09 | 2017-05-26 | 이호준 | Lightweight foamed concrete with improved insulation and soundproofing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105837153A (en) | Sulfur magnesium oxychloride foam cement exterior wall insulation board and preparation method thereof. | |
| US20090165678A1 (en) | Heat insulation board made from fly ashes | |
| JPH0360474A (en) | Inorganic foam and preparation thereof | |
| TWI477552B (en) | Fire-resistant polyurethane material and fire-resistant structure | |
| CN107556036A (en) | Warming plate and preparation method thereof | |
| CN101219878A (en) | A bearing wall board and a method of producing the same | |
| CN105731888A (en) | High-strength waste rock powder aerated concrete block | |
| KR101782845B1 (en) | High thermal insulating and light-weight aerated concrete mix using hydrophilic nano aerogel powder and preparing method of light-weight aerated concrete | |
| KR102483897B1 (en) | Aerated concrete containing rice husk and its manufacturing method | |
| CN107857532A (en) | A kind of high-strength insulation acoustical absorption wall material | |
| CN108275955A (en) | A kind of light-weighted autoclaved air entrained concrete plate material of thermal-insulating type and preparation method | |
| CN112745066A (en) | Novel foamed concrete, foamed concrete prefabricated part and preparation method of light filling cast-in-place wall | |
| CN209308261U (en) | A kind of high-strength insulation building block | |
| CN110615692A (en) | Novel foaming cement heat-insulating material and preparation method thereof | |
| KR100468083B1 (en) | Refractory liquid and method of manufacturing the same, and refractory material, refractory building material and refractory adhesive each manufactured from the refractory liquid | |
| KR101662434B1 (en) | Light-weight aerated concrete mix method using the special composition with emhancement of crack control and flexural performance | |
| KR101115282B1 (en) | Compositions with enhanced insulation capability for clay plastering architecture and its plastering method using the same thereof | |
| KR20180120300A (en) | High strength magnesium oxide composite panel using carbon fiber grid technology and manufacturing method thereof | |
| KR0181779B1 (en) | Method for producing a lightweight bubble acoustic-absorptive block of a rigid type | |
| CN103058609A (en) | Light wallboard | |
| CN106677415A (en) | Light-weight fire-prevention and heat-preservation brick | |
| CN208329215U (en) | A kind of composite foaming cement fireproof heated board exterior wall insulated structure | |
| ES272043A1 (en) | Improvements in and relating to foamed bodies | |
| RU2765938C1 (en) | Composition for making polystyrene concrete | |
| CN215670694U (en) | Three-dimensional enhancement mode heat preservation composite decoration integration board |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| E902 | Notification of reason for refusal | ||
| E90F | Notification of reason for final refusal | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant |