KR0142909B1 - Refractory composition using ceramicfiber - Google Patents

Refractory composition using ceramicfiber

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Publication number
KR0142909B1
KR0142909B1 KR1019960015727A KR19960015727A KR0142909B1 KR 0142909 B1 KR0142909 B1 KR 0142909B1 KR 1019960015727 A KR1019960015727 A KR 1019960015727A KR 19960015727 A KR19960015727 A KR 19960015727A KR 0142909 B1 KR0142909 B1 KR 0142909B1
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South Korea
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weight
parts
present
fiber
fire resistance
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KR1019960015727A
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Korean (ko)
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KR970074724A (en
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김홍균
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김홍균
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Publication of KR0142909B1 publication Critical patent/KR0142909B1/en

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    • 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
    • C04B28/06—Aluminous cements
    • 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
    • C04B14/30—Oxides other than silica
    • C04B14/303—Alumina
    • 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
    • C04B14/38—Fibrous materials; Whiskers
    • 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
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/24—Macromolecular compounds
    • C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B24/2641—Polyacrylates; Polymethacrylates
    • 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
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/10—Accelerators; Activators
    • C04B2103/14—Hardening accelerators
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00431—Refractory materials

Abstract

본 발명은 기존 내화 캐스타블(Castable)의 시공시 접착력과 비중으로 인한 무게 800℃이상의 고온에서 결합력과 단열성의 문제점 기존 화이버캐스트(fiber cast)의 자연상태에서 양생이 되지 않고 세라믹화이버 제품을 가동한 모듈(Module), 브랑켓(Blanket)등의 900℃이상에서는 급속한 수축과 부진등의 문제점을 동시에 개선한 세라믹화이버(Ceramic fiber)를 이용한 부정형 내화재 조성물에 관한 것이다. 본 발명은 결합력과 단열성을 위하여 세마릭화이버(Ceramic fiber)를 5mm이하, 5∼10mm, 10∼20mm세 종류로 절연, 파쇄하여 상부에 명시한 각 중량부 별로 제품종류에 따라 첨가하여 혼합 혼련하여 제조하게 된다. 본 발명에서는 상기 조성물 중 세라믹화이버는 결합력, 내화성능, 단열성을 지니고 기존 캐스타블 보다 1.5∼6배 정도 비중이 낮은 결과를 가져오게 된다. 그리고 여러종류의 알루미나 시멘트는 고온에서의 고강도와 내화성능을 유지시켜주고 기타 첨가제는 높은 점성을 가지게 하여주어 접착력과 자연상태에서 양생될 수 있는 결과를 가져오게 한다. 본 발명은 기존 내화 캐스타블(Castable)의 단열성, 내화도, 접착력, 비중으로 인한 무게, 고온에서의 스폴링(Spalling), 크랙(Crack)현상등의 문제점을 해결 보완하여 사용자에게 여러가지 편리함과 경제적 이익을 주고 생산성 향상에 기여하는데 목적을 두고자 하는 것이다.The present invention is a problem of bonding strength and thermal insulation at a high temperature of more than 800 ℃ due to the adhesive strength and specific gravity during the construction of the existing refractory castable (Castable) operation of the ceramic fiber products without curing in the natural state of the existing fiber cast (fiber cast) At least 900 ° C of a module, a blanket, and the like, the present invention relates to an amorphous refractory material composition using ceramic fibers which simultaneously improves problems such as rapid shrinkage and sluggishness. The present invention is manufactured by mixing and kneading the semaric fiber (ceramic fiber) 5 mm or less, 5 to 10 mm, 10 to 20 mm in three types for bonding strength and thermal insulation by adding according to the product type for each weight part specified above. Done. In the present invention, the ceramic fiber of the composition has a bonding force, fire resistance, heat insulation, and results in a specific gravity of about 1.5 to 6 times lower than that of a conventional castable. In addition, various kinds of alumina cements maintain high strength and fire resistance at high temperatures, and other additives have high viscosity, resulting in adhesion and curing in the natural state. The present invention solves and solves problems such as thermal insulation, fire resistance, adhesive strength, weight due to specific gravity, spalling at high temperature, crack phenomenon, and various conveniences and economics for users. The goal is to make profits and contribute to productivity gains.

Description

무기섬유를 이용한 부정형 내화제 조성물Amorphous Refractory Composition Using Inorganic Fibers

본 발명은 기존 내화벽돌이나 부정형 내화 캐스타블(Castable)의 시공시 접착력과 비중으로 인한 무게 800℃이상의 고온에서 결합력과 단열성의 문제점과 기존의 무기섬유(세라믹화이버;Ceramic fiber)를 가공한 화이버캐스트(fiber cast)의 자연상태에서 양생이 되지 않는 문제점을 고온에서의 결합력이 급격히 떨어지는 세라믹화이버 등의 단점을 동시에 개선한 무기섬유를 부정형 내화제 조성물에 관한 것이다.The present invention has a problem of bonding strength and thermal insulation at a high temperature of more than 800 ℃ due to the adhesive strength and specific gravity during the construction of the existing refractory bricks or amorphous fire-resistant castable (fiber) processed conventional inorganic fibers (ceramic fiber) The inorganic fiber which at the same time improved the disadvantages of the ceramic fiber, such as a ceramic fiber, the problem of not curing in the natural state of the cast (Fiber cast) rapidly dropping the bonding force at a high temperature relates to an amorphous refractory composition.

무기섬유는 90%이상의 알루미나와 규산질로 대부분 이루어져 있으며 종류와 용도에 따라서 지르코니아, 마그네시아 등이 있을 수 있다. 기존의 내와 캐스타블의 경우는 접척력에 많은 문제점이 있어 천정이나 벽등에 바로 시공 할 수없는 단점이 있었으며, 더욱이 800℃이사의 고온에서는 결합력과 스폴링(Spalling), 크랙(Crack), 단열성 등의 문제로 인하여 연료소모와 장기간 사용할 수 없는 문제점으로 인하여 각 기업체에 연료비용과 많은 보수비용 부담으로 공장가동에 지장을 주고 있다.Inorganic fibers are composed of more than 90% of alumina and siliceous, and may be zirconia, magnesia, etc., depending on the type and use. In the case of existing inner and castable, there are many problems in the cohesive force, so there is a disadvantage that it can not be installed directly on the ceiling or wall, etc. Moreover, the bonding force, spalling, crack, Due to problems such as heat insulation, fuel consumption and long-term unavailability have hampered the operation of the factory due to the high cost of fuel and high maintenance costs.

화이버캐스트(fiber cast)의 경우는 자연상태에서 양생이 되지 않는 관계로 소성을 하여야 하기 때문에 사용상의 문제가 있고 건조후에는 표면자체가 단단하지 않고 스폰지와 같은 현상이 나타나며 풍압 등이 심한 경우는 표면 자체가 손실되는 경우가 있어 로내의 풍압이 있는 곳에서는 사용하지 않고 외부 단열에만 사용하고 있는 실정이다.In the case of fiber cast, there is a problem in use because it needs to be fired because it does not cure in the natural state, and after drying, the surface itself is not hard, sponge-like phenomenon appears, and in the case of severe wind pressure, the surface Because it may be lost, it is not used where there is wind pressure in the furnace, but only for external insulation.

따라서, 본 발명은 상기와 같은 문제점을 해결하기 위한 것으로서, 본 발명의 목적은 1,000℃이상의 고온에서도 높은 내화성능과 기존 내화물보다 우수한 단열성을 지니고 자연상태에서 양생되며 기존 캐스타블(Castable)보다 1.5∼6배 정도 비중이 낮고 접착력이 우수한 제품을 조정하기 위한 무기섬유를 이용한 부정형내화제 조성물을 제공함에 있다. 본 발명은 기존 내화물의 문제점을 개선하기 위하여 세라믹 화이버(Ceramic fiber)를 사용하여 1,000℃이상의 고온에서도 아주 높은 결합력과 내화성능을 지니게 하고 기존 캐스타블(Castable)의 단열성을 보완하고 세라믹 화이버(Ceramic fiber)를 사용하므로써 기존 캐스타블(Castable)보다 1.5∼6배 정도 가벼워 무게가 문제되는 부위에 용이하도록 제조함으로서 기존 내화물의 문제점을 보완 개선 하였다.Accordingly, the present invention is to solve the above problems, the object of the present invention is to have a high fire resistance and excellent thermal insulation than conventional refractory at high temperature of more than 1,000 ℃ and is cured in a natural state and 1.5 than the existing castable (Castable) It is to provide an amorphous refractory composition using inorganic fibers for adjusting a product having a low specific gravity of about 6 times and excellent adhesion. The present invention has a very high bonding strength and fire resistance at a high temperature of more than 1,000 ℃ using a ceramic fiber (Ceramic fiber) to improve the problem of the existing refractory, and complement the insulation of the existing castable (Castable) and ceramic fiber (Ceramic By using fiber), it is 1.5 to 6 times lighter than existing castable, so that it is manufactured to be easy to the problem of weight, and complemented and improved the problem of the existing refractory.

상기와 같은 목적을 달성하기 위한 본 발명에 따른 무기섬유를 이용한 부정형 내화제 조성물은 무기섬유(Ceramic fiber)와 알루미나 시멘트, 알루미나, 규산, 폴리아크릴레이트, 수산화칼슘, 금속 알루미늄 등을 사용하여, 부정형 내화물을 제조함에 있어서, 결합력과 내화도, 단열을 위하여 무기섬유(Ceramic fiber)를 5mm이하와, 5∼10mm, 10∼20mm크기로 절단 패쇄한 10∼70중량부; 높은 내화력 및 경화를 촉진시켜 강도를 발휘할 수 있도록하는 알루미나 시멘트 10∼75중량부; 내화도를 증가시키기 위한 알루미나 5∼41중량부 및 규산 2∼30중량부; 시공시 유동성과 접착력 경화촉진, 기공을 형성하기 위한 폴리아크릴레이트 2∼0.001중량부;알루미나 시멘트의 경화촉진제로서 수산화칼슘(Ca(OH)2)1∼0.001중량부;및 건조촉진제로서 금속 알루미늄1∼0.001중량부; 인산나트륨 2∼0.002중량부와 아민산 나트륨 1∼0.001중량부를 넣어 혼합하여 제조됨을 기술적 구성상의 특징으로 한다.The amorphous refractory composition using the inorganic fiber according to the present invention for achieving the above object is an amorphous refractory material using inorganic fibers (Ceramic fiber) and alumina cement, alumina, silicic acid, polyacrylate, calcium hydroxide, metal aluminum, etc. In the preparation, 10 to 70 parts by weight of cut and closed inorganic fibers (Ceramic fiber) 5 mm or less, 5 to 10 mm, 10 to 20 mm in size for bonding strength, fire resistance, heat insulation; 10 to 75 parts by weight of alumina cement for promoting high fire resistance and hardening to exhibit strength; 5 to 41 parts by weight of alumina and 2 to 30 parts by weight of silicic acid to increase the degree of fire resistance; 2 to 0.001 parts by weight of polyacrylate for promoting fluidity and adhesion during construction and for forming pores; 1 to 0.001 parts by weight of calcium hydroxide (Ca (OH) 2 ) as a curing accelerator for alumina cement; and 1 to 0.001 parts by weight of metal aluminum as a drying accelerator. 0.001 parts by weight; It is characterized by the technical constitution that it is prepared by mixing 2 to 0.002 parts by weight of sodium phosphate and 1 to 0.001 parts by weight of sodium amine.

상기에서 언급된 각 성분은 제품의 요도와 종류에 따라서 첨가될 수도 있고 안될수도 있다. 본 발명에서 상기 조성물중 세라믹화이버는 결합력, 내화성능, 단열성을 지니고 기존 캐스타블보다 1.5∼6배 정도 비중이 낮은 결과를 가져오게 된다. 그리고 여러종류의 알루미나 시멘트는 강도를 유지키켜주며 내화성능을 가진다. 알루미나와 규산을 결합에 있어서 입도 조성을 시켜 높은 온도에서의 내화성능을 높이고 폴리아크릴레이트(poly acrylate)는 점도를 가지며 물과 반응하여 작업성을 좋게 해주고 경화촉진 및 기공을 형성시켜 단열의 효과가 있다. 수산화칼슘(Ca(OH)2)과 금속 알루미늄은 알루미나 시멘트와 반응하여 경화촉진 효과와 건조를 촉진시켜 준다.Each of the ingredients mentioned above may or may not be added, depending on the degree and type of product. In the present invention, the ceramic fiber of the composition has a bonding force, fire resistance, heat insulation, and brings about 1.5 to 6 times lower specific gravity than the existing castable. And various kinds of alumina cements maintain strength and have fire resistance. In the combination of alumina and silicic acid, the particle size composition is increased to increase the fire resistance at high temperature, and the polyacrylate has a viscosity and reacts with water to improve workability, and promotes hardening and formation of pores. . Calcium hydroxide (Ca (OH) 2 ) and metal aluminum react with alumina cement to promote the hardening effect and drying.

본 발명의 조성물은 사용 부위와 용도에 따라 물 또는 실리카졸(Sillica sol)을 사용하여 혼합 혼련하고 좋은 접착력으로 인하여 시공부위에 바로 부착 시공할 수 있어 기존 캐스타블(Castable)의 부착 시공할 수 없는 문제점을 개선하고 자연상태에서 양생이 가능하므로 기존에 열을 가하는 제품에 비해 연료절감과 노동력을 줄일 수 있다. 본 발명의 특징은 기존의 캐스타블(Castalble), 내화벽돌, 루미보다(Lumiboard),세라믹화이버(Ceramic fiber)를 가오하여 만들어진 화이버 캐스트(Fiber cast), 브랑켓(Blanket), 보드(Board), 모듈(Module)등의 여러 가지를 대신하여 사용할 수 있으며 로내와 탕도 등에 사용할 수도 있어 사용자에게 여러 가지 편리함과 경제적 이익을 주며, 단열성이기존의 내화 단열제보다 우수하므로 연료절감의 이익을 함께 얻을 수 있다.The composition of the present invention can be mixed and kneaded using water or silica sol according to the use site and use, and can be directly attached to the construction site due to good adhesion, and thus can be attached to existing castables. It can improve the problem and cure in the natural state, so it can save fuel and labor compared to the products that heat. Characteristic of the present invention is the cast (Fiber cast), Blanket (Blanket), Board (Board) made of the existing castable (Castalble), refractory brick, Lumiboard, Ceramic fiber It can be used in place of various kinds of module, module, etc. It can also be used in furnaces and water furnaces, which gives various convenience and economic benefits to the user. You can get it.

다음의 실시 예에서 본 발명의 구체적인 적용방법 및 효과에 대하여 설명한다.In the following examples, specific application methods and effects of the present invention will be described.

[실시예]EXAMPLE

본 발명의 실시예는 본 발명의 범위를 한정하는 것이 아니고 여러 가지의 다양한 현장 용도에 따라 조성이 다를 수 있음은 물론이다.Embodiment of the present invention is not limited to the scope of the present invention, of course, the composition may vary according to various various field applications.

세라믹화이버(Ceramic fiber)38중량부, 슈퍼알루미나 시멘트19중량부, 용융알루미나 40.91중량부, 규산2중량부, 폴리아크릴레이트(poly acrylate)0.08중량부, 수산화칼슘(Ca(OH)2) 0.01중량부로 하여 혼합기에서 혼련하여 본 발명에 의한 조성물을 얻고, 이를 물(또는 실리카졸)과 혼합한 뒤 기존 내화벽돌SK36(230mm×114mm×65mm)과 똑같은 두께로 가로 920mm 세로 650mm크기에 부착 시공하여 1,400℃의 가열로에서 4시간 동안 가열한 경우 표면의 도달 온도는 53℃에 불과 하였으며 같은 조건에서 6시간 동안 가열한 경우는 62℃까지 상승하였고, 8시간이 경과한 후에는 71℃까지 상승하였다.38 parts by weight of ceramic fiber, 19 parts by weight of super alumina cement, 40.91 parts by weight of fused alumina, 2 parts by weight of silicic acid, 0.08 parts by weight of poly acrylate, 0.01 parts by weight of calcium hydroxide (Ca (OH) 2 ) By kneading in a mixer to obtain a composition according to the present invention, and mixing it with water (or silica sol) and attaching it to the same thickness as the existing refractory brick SK36 (230mm × 114mm × 65mm) to 920mm length 650mm size to 1,400 ℃ After heating for 4 hours in the heating furnace of the surface reached a temperature of only 53 ℃, after heating for 6 hours under the same conditions rose to 62 ℃, after 8 hours to 71 ℃.

[비교예1]Comparative Example 1

본 비교에서는 실시예의 각 성분량과 같이 조성물을 얻고 가로 920mm 세로 650mm, 두께 114mm의 크기에 부착 시공하여 기존 내화벽돌 SK36꽈 캐스타블 CT-180을 똑같은 크기로 하여 1,400℃의 가열로에서 시간 추이에 따라 변화한 온도의 차이는 아래 표1과 같다.In this comparison, the composition is obtained in the same manner as the amount of each component in the example, and is attached to a size of 920mm in width and 650mm in length and 114mm in thickness. The difference in temperature changes is shown in Table 1 below.

이상에서와 같이 본 발명에 따른 무기섬유를 부정형 내화재 조성물에 의하면, 1,000℃이상의 고온에서도 높은 내화성능과 기존 내화물보다 우수한 단열성을 지니고 자연상태에서 양생되며 기존 캐스타블 보다 1.5∼6배 정도 비중이 낮고 접착력이 우수한 제품을 제작할 수 있는 이점이 있다. 비록 본 발명이 특정의 실시예를 참조하여 설명하였을 지라도 본 발명은 이에 한정되는 것이 아니라 하기의 특허청구범위의 범주 내에서 많은 변형 및 수정이 가능함은 물론이다.As described above, according to the amorphous fiber refractory material composition according to the present invention, it has a high fire resistance performance and excellent thermal insulation properties than conventional refractory materials at a high temperature of more than 1,000 ℃ and is cured in a natural state, and 1.5 to 6 times the specific gravity of the existing castable There is an advantage that can produce a low and excellent adhesion. Although the present invention has been described with reference to specific embodiments, the present invention is not limited thereto and many variations and modifications are possible within the scope of the following claims.

Claims (1)

무기섬유(Ceramic fiber)와 알루미나 시멘트, 알루미나,규산,폴리아크릴레이트,수산화칼슘,금속 알루미늄 등을 사용하여, 부정형 내화물을 제조함에 있어서, 결합력과 내화도, 단열을 위하여 무기섬유(Ceracic fiber) 10∼70중량부; 내화력 및 경화를 촉진시켜 강도를 발휘할 수 있도록하는 알루미나 시멘트 10∼75중량부; 내화도를 증가시키기 위한 알루미나 5∼41중량부 및 규산 2∼30중량부; 시공시 유동성과 접착력 경화촉진 및 기공을 형성하기 위한 폴리아크릴레이트 2∼0.001중량부; 상기 알루미나 시멘트의 경화를 촉진하기 위한 수산화칼슘(Ca(OH)2)1∼0.001중량부; 및 건조 및 촉진을 위한 금속 알루미늄1∼0.001중량부, 인산나트륨 2∼0.002중량부와 아민산 나트륨 1∼0.001중량부를 혼합하여 구성됨을 특징으로 하는 무기섬유를 이용한 부정형 내화제 조성물.In the manufacture of amorphous refractory material using inorganic fiber, alumina cement, alumina, silicic acid, polyacrylate, calcium hydroxide, metal aluminum, etc.Ceracic fiber 10 ~ 70 for bonding strength, fire resistance and insulation Parts by weight; 10 to 75 parts by weight of alumina cement for promoting the fire resistance and hardening to exhibit strength; 5 to 41 parts by weight of alumina and 2 to 30 parts by weight of silicic acid to increase the degree of fire resistance; 2 to 0.001 parts by weight of polyacrylate for promoting fluidity and adhesion during construction and forming pores; Calcium hydroxide (Ca (OH) 2 ) 1 to 0.001 parts by weight for promoting hardening of the alumina cement; And 1 to 0.001 parts by weight of metallic aluminum for drying and promotion, 2 to 0.002 parts by weight of sodium phosphate, and 1 to 0.001 parts by weight of sodium amine acid.
KR1019960015727A 1996-05-13 1996-05-13 Refractory composition using ceramicfiber KR0142909B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100896648B1 (en) * 2007-10-24 2009-05-08 주식회사 포스코 Refractory composition having excellent adiabatic for spray and spraying construction method using the same
KR101273398B1 (en) * 2011-07-11 2013-06-11 주식회사 알인텍 Nonfiring Insulation Having Electric Insulation and Heat Resistance and Method for Manufacturing the Same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100896648B1 (en) * 2007-10-24 2009-05-08 주식회사 포스코 Refractory composition having excellent adiabatic for spray and spraying construction method using the same
KR101273398B1 (en) * 2011-07-11 2013-06-11 주식회사 알인텍 Nonfiring Insulation Having Electric Insulation and Heat Resistance and Method for Manufacturing the Same

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