JP3537511B2 - Magnesia ultra-lightweight refractory material - Google Patents
Magnesia ultra-lightweight refractory materialInfo
- Publication number
- JP3537511B2 JP3537511B2 JP27126894A JP27126894A JP3537511B2 JP 3537511 B2 JP3537511 B2 JP 3537511B2 JP 27126894 A JP27126894 A JP 27126894A JP 27126894 A JP27126894 A JP 27126894A JP 3537511 B2 JP3537511 B2 JP 3537511B2
- Authority
- JP
- Japan
- Prior art keywords
- refractory material
- magnesia
- zeolite
- material according
- synthetic resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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
- 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
- C04B20/12—Multiple coating or impregnating
-
- 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
- C04B28/30—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 magnesium cements or similar cements
- C04B28/32—Magnesium oxychloride cements, e.g. Sorel cement
-
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、ゼオライトと無機質
または合成樹脂系中空発泡体を骨材として混入したマグ
ネシア系超軽量質耐火性材料に関するものである。さら
に詳しくは、この発明は、断熱、耐火、耐久性が要求さ
れる建築構造材料等に有用な、ゼオライトと無機質また
は合成樹脂系中空発泡体を骨材としたマグネシア系超軽
量質耐火性材料に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnesia-based ultralight refractory material in which zeolite and an inorganic or synthetic resin-based hollow foam are mixed as an aggregate. More particularly, the present invention relates to a magnesia-based ultra-lightweight refractory material using zeolite and an inorganic or synthetic resin-based hollow foam as an aggregate, which is useful for building structural materials and the like that require heat insulation, fire resistance, and durability. Things.
【０００２】[0002]
【従来の技術とその課題】従来より、軽量な無機質材料
として焼結発泡セラミックスや微小口径ハニカム構造の
セラミックスが知られているが、これらは成形、焼成の
プロセスが複雑であってコストも高いことから大型構造
材料への利用が困難であり、小形の耐火断熱材またはバ
イオリアクター等の触媒担体として利用されるにとどま
っている。また、繊維状セラミックスも軽量な耐火断熱
材として利用されているに過ぎない。さらに、ガラスウ
ールやスラグウールがマット状の断熱、防音材として利
用されているが、これらも構造材とはなり得ない。2. Description of the Related Art Sintered foamed ceramics and ceramics having a small-diameter honeycomb structure have been conventionally known as lightweight inorganic materials, but these require complicated forming and firing processes and high costs. However, it is difficult to use it for large structural materials, and it is only used as a small-sized refractory heat insulating material or a catalyst carrier for a bioreactor. Further, fibrous ceramics are also merely used as lightweight fire-resistant heat insulating materials. Further, glass wool and slag wool are used as mat-like heat insulating and soundproofing materials, but they cannot be structural materials.
【０００３】一方、繊維状珪酸カルシウム、セラミック
発泡体をポルトランドセメントで硬化した軽量質コンク
リート板も知られているが、ＢＳＧが１．５以上で強度
が低く、炭酸化による経年劣化が顕著である等の欠点が
ある。また、ＡＬＣ(Autoclaved Light weight Concret
e)に分類され、水熱合成法によって生成された珪酸カル
シウム発泡体は、鉄筋を内蔵する大型耐火構造材料とし
て広く利用され、現状においては唯一のセラミック構造
材料として扱われている。しかしながら、このＡＬＣは
含水珪酸カルシウム(Tobermorite) と未反応の二酸化珪
素(SiO2)の混合組織であるため、含水珪酸カルシウムが
炭酸化によってゲル状酸化珪素と炭酸カルシウムに分解
し、これによる吸収、乾燥に伴い膨張、収縮を繰り返す
ため、経年劣化が大きいことが指摘されている。また、
吸水率が大きく、強度が弱いために脆く、取り扱い中に
破壊しやすく、表面塗装膜も劣化しやすい等の欠点があ
る。[0003] On the other hand, there is also known a lightweight concrete plate obtained by hardening fibrous calcium silicate or ceramic foam with Portland cement. However, the strength is low when BSG is 1.5 or more, and deterioration over time due to carbonation is remarkable. And the like. ALC (Autoclaved Light weight Concret
Calcium silicate foams classified by e) and produced by a hydrothermal synthesis method are widely used as large-scale refractory structural materials containing a reinforcing bar, and are currently treated as the only ceramic structural materials. However, since this ALC is a mixed structure of hydrated calcium silicate (Tobermorite) and unreacted silicon dioxide (SiO 2 ), hydrated calcium silicate is decomposed into gelled silicon oxide and calcium carbonate by carbonation, and absorption by this is caused. It has been pointed out that aging and shrinkage are repeated due to repeated expansion and contraction with drying. Also,
It has disadvantages such as high water absorption, low strength, brittleness, easy breakage during handling, and easy deterioration of the surface coating film.
【０００４】このように、従来の軽量質無機質材料は、
建築構造材料として利用するには物性ならびに経済性の
面で適正さを欠いており、唯一広く利用されているＡＬ
Ｃも強度不足と経年劣化という二つの大きな問題を抱え
ている。この発明は、以上の通りの事情に鑑みてなされ
たものであり、これまでのものとは異なる発想をもと
に、軽量かつ大型の構造材料として安定した物性を示
し、経済性にも優れ、特に大きな疎水性を持つマグネシ
ア系軽量質耐火性構造材料を提供することを目的として
いる。As described above, the conventional lightweight inorganic materials are:
It is not suitable for use as a building structural material in terms of physical properties and economic efficiency, and is the only widely used AL
C also has two major problems: insufficient strength and aging. The present invention has been made in view of the circumstances described above, and based on a different idea from the conventional ones, shows stable physical properties as a lightweight and large-sized structural material, is excellent in economic efficiency, It is an object of the present invention to provide a magnesia-based lightweight fire-resistant structural material having particularly high hydrophobicity.
【０００５】[0005]
【課題を解決するための手段】この発明は、上記の課題
を解決するものとして、ゼオライトもしくはそれを主成
分とする凝灰岩粒子と無機質または合成樹脂系の中空発
泡体を骨材として、活性度の高いマグネシアならびにそ
の塩類を混合して成形したものを低温で硬化させること
によって、軽量でかつ大型の構造材料として安定した物
性を示すことを特徴とする軽量質耐火性材料を提供す
る。The present invention solves the above-mentioned problems by using zeolite or a tuff particle containing the same as a main component and an inorganic or synthetic resin-based hollow foam as an aggregate, and the activity of the zeolite is reduced. A light-weight fire-resistant material characterized by exhibiting stable physical properties as a light-weight and large-sized structural material by hardening at a low temperature a molded product obtained by mixing high magnesia and its salts.
【０００６】さらにこの発明について、その背景を説明
すると、マグネシアとその塩類であるリン酸塩、硫酸
塩、塩化物等との反応によって生成するマグネシウムオ
キシ塩セメントは、軽量であり、曲げ強度が大きく、木
材や岩石等との接着力に優れていることは従来より知ら
れており、さらにオキシ塩の可溶性によって、金属表面
上で加水分解を起こし腐食が生じることも知られてい
る。このようなマグネシアセメントの欠点を改善するた
めの手段として種々の添加物が提案されているが完全な
ものはない。Further, the background of the present invention will be described. The magnesium oxysalt cement produced by the reaction of magnesia with its salts, such as phosphates, sulfates, chlorides, etc., is lightweight and has high bending strength. It has been known that it has excellent adhesion to wood, rocks and the like, and it is also known that the solubility of the oxysalt causes hydrolysis on the metal surface to cause corrosion. Various additives have been proposed as means for remedying the drawbacks of magnesia cement, but none of them have been perfect.
【０００７】そこで、この発明の発明者らは、マグネシ
ウムオキシ塩の吸着水による可溶性を抑止するために、
ゼオライトの吸着性とイオン交換性に着目し、これらを
複合することによって上記現象を完全に抑止でき、さら
に凝灰岩粒子を酸で処理することによって、その複合効
果が発揮されることを見いだした。しかしながら、ゼオ
ライトを主成分とする凝灰岩は多孔性であるため、粒子
の容積重量（ＢＳＧ）が０．９と低く、またマグネシア
のＢＳＧが０．７以下であるため、その硬化体のＢＳＧ
を０．８以下とすることも容易である。だが、近年、省
エネルギーの観点から超軽量化が要求されており、材料
のＢＳＧを極限まで低下させることが重要となってい
る。Therefore, the inventors of the present invention have proposed the following in order to suppress the solubility of magnesium oxy salt due to adsorbed water.
Focusing on the adsorption and ion-exchange properties of zeolites, it was found that the above phenomena could be completely suppressed by combining them, and that the combined effect was exhibited by treating the tuff particles with an acid. However, since the tuff mainly composed of zeolite is porous, the volume weight (BSG) of the particles is as low as 0.9 and the BSG of magnesia is 0.7 or less.
Can easily be set to 0.8 or less. However, in recent years, ultra light weight is required from the viewpoint of energy saving, and it is important to reduce the BSG of the material to the limit.
【０００８】そこで、この発明の発明者らは、無機質、
または合成樹脂系中空発泡体を混入させることにより、
ＢＳＧを０．６以下から０．３以下までに低くし、同時
に曲げ強度（ＭＯＲ）を１０Ｋｇｆ／ｃｍ2 に保持する
ことが可能であることを見いだした。これにより、構造
体の構築エネルギーと構造体自身の省エネルギー化を達
成できることを確認し、この発明を完成した。Therefore, the inventors of the present invention have proposed inorganic,
Or by mixing a synthetic resin hollow foam,
It has been found that it is possible to lower the BSG from 0.6 or less to 0.3 or less and at the same time keep the bending strength (MOR) at 10 Kgf / cm 2 . As a result, it has been confirmed that the construction energy of the structure and the energy saving of the structure itself can be achieved, and the present invention has been completed.
【０００９】そしてまた、この発明による軽量材は、大
型パネルとして利用することができ、この場合には、合
成樹脂によるコーティングを施した鉄筋によってＲＣ構
造とすることが構築物の安全上望ましい。Further, the lightweight material according to the present invention can be used as a large-sized panel. In this case, it is desirable from the viewpoint of safety of the structure that the RC structure be made of a reinforcing bar coated with a synthetic resin.
【００１０】[0010]
【作用】この発明においては、マグネシアならびにその
塩類に、ゼオライトを主成分とする凝灰岩粒子と無機質
または合成樹脂の中空粒子を骨材として混合し硬化さ
せ、マグネシア系軽量質耐火性材料を製造する。そし
て、特にこの発明では、ゼオライトを整粒し、十分に乾
燥させ、この粒子にリン酸、塩酸、硫酸等を１０％以下
に希薄したものを加えてゼオライト表面層のアルカリな
らびにアルカリ土類金属イオンを置換し、ゾル、ゲル化
状態になった粒子表面にマグネシアを反応させ水和珪酸
塩を生成させることで、その粒子表面層は粒子内部のゼ
オライト効果を失うことなく、マグネシウムオキシ塩の
セメント接着性を強める作用を発揮する。According to the present invention, magnesia and its salts are mixed with aggregates of tuff particles composed mainly of zeolite and hollow particles of an inorganic or synthetic resin and cured to produce a magnesia-based lightweight refractory material. In particular, in the present invention, the zeolite is sized, dried sufficiently, and the particles obtained by diluting phosphoric acid, hydrochloric acid, sulfuric acid, etc. to 10% or less are added to the alkali and alkaline earth metal ions of the zeolite surface layer. Is replaced by magnesia on the surface of the sol and gelled particles to form hydrated silicate, so that the particle surface layer does not lose the zeolite effect inside the particles and cements the magnesium oxy salt with cement. Exhibits the effect of strengthening sex.
【００１１】これらの配合組成物に、無機質または合成
樹脂の中空発泡体として、セラミックバルーン、ガラス
バルーンなどの無機質中空発泡体や、ポリスチレン、ポ
リエチレン等の樹脂発泡粒子を混合することで、この発
明の超軽量質耐火材料が実現される。さらに詳しくは、
この発明においては、ゼオライト石が天然またはその酸
もしくはアルカリ処理したもの、特に［（Ｃａ；Ｎａ2
…Ｋ2 ）（Ａｌ2 Ｓｉ7 Ｏ13）・６Ｈ2 Ｏ］を主鉱物と
する凝灰岩粒子を酸処理したもの等と上記の無機または
合成樹脂の中空発泡体とを骨材とし、マグネシア（Ｍｇ
Ｏ）をその塩類とからなるマグネシアオモシ塩化物とに
よって耐火材を構成する。According to the present invention, by mixing an inorganic or synthetic resin hollow foam such as a ceramic balloon or a glass balloon, or a resin foam particle such as polystyrene or polyethylene, as a hollow foam of an inorganic or synthetic resin, into these compounded compositions. An ultralight refractory material is realized. For more information,
In the present invention, zeolite stone is natural or its acid or alkali treated, especially [(Ca; Na 2
... K 2) (Al 2 Si 7 O 13) · 6H 2 O] mainly minerals to ones tuff particles treated with acid or the like and the inorganic or synthetic resin and hollow foam and aggregate, magnesia (Mg
The refractory material is constituted by magnesia sorghum chloride consisting of O) and its salts.
【００１２】マグネシアは、マグネシウム塩を１０００
℃以下の温度で焼成して得られる活性マグネシアであっ
て、粒径５０μｍ以下で、比表面積が２５〜４０ｍ2／
ｇであることを特に好ましい態様としている。また、マ
グネシア微粉末は、ゼオライト石にコーティングして配
合することが有効でもある。マグネシウムオキシ塩化合
物は、［（ｎＭｇＯ・ＭｇＣｌ2 ・ＳＯ4 ・Ｐ2 Ｏ5)・
ｍＨ2 Ｏ］（ｎ＝５〜１０）で表わされるものを好適に
使用する。このものはマグネシアとマグネシウム塩との
混合スラリーとして実現される。また、高分子エマルジ
ョンを配合することも有利である。Magnesia has a magnesium salt of 1000
An active magnesia obtained by calcining at a temperature of not more than ℃, having a particle size of not more than 50 μm and a specific surface area of 25 to 40 m 2 /
g is a particularly preferred embodiment. It is also effective to coat and mix the magnesia fine powder with zeolite stone. The magnesium oxysalt compound is [(nMgO.MgCl 2 .SO 4 .P 2 O 5 ).
mH 2 O] (n = 5 to 10) is preferably used. This is realized as a mixed slurry of magnesia and magnesium salt. It is also advantageous to incorporate a polymer emulsion.
【００１３】全体の配合については、マグネシア、その
塩、ゼオライト、さらには高分子エマルジョンの総量が
９０〜９９重量％、中空発泡体が１〜１０重量％程度と
し、また、ゼオライトは３〜２０重量％、マグネシア、
その塩は８０〜９５重量％、高分子エマルジョンは３０
％以下とするのが好ましい。なお、耐火性の観点から
は、合成樹脂系発泡体の場合は１〜５重量％とするのが
好ましい。The total amount of magnesia, its salt, zeolite, and polymer emulsion is about 90 to 99% by weight, hollow foam is about 1 to 10% by weight, and zeolite is about 3 to 20% by weight. %, Magnesia,
The salt is 80 to 95% by weight, the polymer emulsion is 30% by weight.
% Is preferable. In addition, from the viewpoint of fire resistance, in the case of a synthetic resin foam, the content is preferably 1 to 5% by weight.
【００１４】以下、実施例を示してさらに詳しくこの発
明の超軽量質耐火材について説明する。Hereinafter, the ultralight refractory material of the present invention will be described in more detail with reference to examples.
【００１５】[0015]
【実施例】サイズ６００×６００×４０ｍｍの超軽量質
耐火材料中に５ｍｍ×４００ｍｍの鉄筋を配筋し、振動
成形により成形し、２４時間養生して硬化体を得た。す
なわち、ゼオライトを主成分とする凝灰岩（大谷石）を
粒径２ｍｍ以下に整粒し、これにリン酸（Ｈ2 ＰＯ4 ）
の５％水溶液をスプレーし、１時間後にマグネシアの微
粉末をまぶして２時間放置した。このコーティング処理
により、凝灰岩粒子は白色の薄膜と強く接着され、振動
攪拌によっても粉状物質の発生は認められなかった。EXAMPLE A 5 mm.times.400 mm reinforcing bar was arranged in an ultra-lightweight refractory material having a size of 600.times.600.times.40 mm, molded by vibration molding, and cured for 24 hours to obtain a cured product. That is, a tuff (Oya stone) mainly composed of zeolite is sized to a particle size of 2 mm or less, and phosphoric acid (H 2 PO 4 ) is added thereto.
5% aqueous solution was sprayed, and after one hour, fine magnesia powder was sprinkled thereon and left for 2 hours. As a result of this coating treatment, the tuff particles were strongly adhered to the white thin film, and no generation of powdery material was observed even by vibration stirring.
【００１６】なお、ここでは、マグネシアの２５％の塩
化マグネシウム溶液を８ＭｇＯ・（ＭｇＣｌ2 ＋ＭｇＳ
Ｏ4 ）・３Ｈ2 Ｏのような組成比となるように添加しス
ラリー状とした。表１のような配合比（重合比）でコー
ティング処理を施した凝灰岩粒子とマグネシウムスラリ
ーを混合し、さらに粒径３ｍｍ以下のポリスチレン中空
発泡体を配合し、セメントミキサー内で５分間混合攪拌
した。これを型枠に流し込み、約５分間振動成形を行っ
た後、型枠のまま６０℃、湿度７０％の条件で６時間養
生室にて硬化させた。硬化後、１５０℃の空気乾燥炉で
２４時間乾燥硬化させ、さらに空気中で三日間放置し
た。Here, a 25% magnesium chloride solution of magnesia was added to 8MgO · (MgCl 2 + MgS
O 4 ) · 3H 2 O was added to form a slurry. The tuff particles and the magnesium slurry which had been subjected to the coating treatment at the compounding ratio (polymerization ratio) shown in Table 1 were mixed, and a polystyrene hollow foam having a particle size of 3 mm or less was further compounded, followed by mixing and stirring in a cement mixer for 5 minutes. This was poured into a mold, subjected to vibration molding for about 5 minutes, and then cured in a curing room for 6 hours at 60 ° C. and 70% humidity while keeping the mold. After the curing, the composition was dried and cured in an air drying oven at 150 ° C. for 24 hours, and left in air for three days.
【００１７】以上の通りに製造した硬化体の乾燥収縮、
吸水性、曲げ強度を測定し、その結果を表２に示した。
試料Ｎｏ．１は、型枠面は白色でやや光沢を帯び、乾燥
収縮はなかった。試料Ｎｏ．２は、型枠面にはやや粒子
がみられたが、乾燥収縮はなかった。なお、乾湿収縮率
は乾気中から湿気中への環境変化を１０回繰り返し、そ
の後の寸法変化を示した。吸水率は１時間水中に浸した
後の吸水量を示した。また、曲げ強度は空気中に１時間
放置した後に計測した。Drying shrinkage of the cured product produced as described above,
The water absorption and bending strength were measured, and the results are shown in Table 2.
Sample No. In No. 1, the mold surface was white and slightly glossy, and there was no drying shrinkage. Sample No. In No. 2, although some particles were observed on the mold surface, there was no drying shrinkage. In addition, the dry-wet shrinkage ratio was such that the environmental change from dry air to moisture was repeated 10 times, and the subsequent dimensional change was shown. The water absorption indicates the amount of water absorbed after immersion in water for one hour. Further, the bending strength was measured after being left in the air for one hour.
【００１８】[0018]
【表１】 [Table 1]
【００１９】[0019]
【表２】 [Table 2]
【００２０】[0020]
【発明の効果】この発明により、以上詳しく説明したと
おり、軽量質耐火材料として広く利用されているＡＬＣ
と比較し、高い寸法精度、半分の吸水率、約２．５倍の
曲げ強度という優れた性質を示し、長期的に空気中にお
ける炭酸ガスによる劣化もない、軽量質で耐火性、断熱
性を具備し、大型構造材料として利用できうる新しい材
料を提供することが可能となる。According to the present invention, as described in detail above, ALC widely used as a lightweight refractory material.
Compared to, it shows excellent properties such as high dimensional accuracy, half water absorption rate, about 2.5 times bending strength, lightweight, fire resistance and heat insulation without long term deterioration due to carbon dioxide in air. It is possible to provide a new material that can be provided and used as a large-sized structural material.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｃ０４Ｂ 38/08 Ｃ０４Ｂ 38/08 Ａ (58)調査した分野(Int.Cl.7，ＤＢ名) C04B 2/00 - 32/02 B28B 23/02 C04B 35/66 C04B 38/08 ──────────────────────────────────────────────────の Continued on front page (51) Int.Cl. 7 identification code FI C04B 38/08 C04B 38/08 A (58) Field surveyed (Int.Cl. 7 , DB name) C04B 2/00-32 / 02 B28B 23/02 C04B 35/66 C04B 38/08
Claims (9)
なるマグネシウムオキシ塩化合物に骨材を混入して硬化
させたもの、またはそのＲＣ構造体からなるマグネシア
系耐火性材料であって、骨材として、ゼオライトと無機
質もしくは合成樹脂系中空発泡体を混入したことを特徴
とするマグネシア系超軽量質耐火性材料。1. A magnesium oxysalt compound composed of magnesia (MgO) and its salts mixed with an aggregate and cured, or a magnesia-based refractory material composed of an RC structure thereof, and used as an aggregate. A magnesia-based ultralight refractory material, characterized by mixing zeolite and an inorganic or synthetic resin hollow foam.
その酸もしくはアルカリ処理されたものである請求項１
の耐火性材料。2. The zeolite stone is a natural zeolite or an acid or alkali-treated zeolite.
Refractory material.
2 ）（Ａｌ2 Ｓｉ7Ｏ13）・６Ｈ2 Ｏ］を主鉱物とする
凝灰岩粒子を酸処理したものである請求項２の耐火性材
料。3. The method of claim 1, wherein the zeolite stone is [(Ca; Na 2 ... K)
2) (Al 2 Si 7 O 13) · 6H 2 O] a refractory material according to claim 2 in which the tuff particles consisting mainly mineral acid treated.
グネシア微粉末がコーティングされているものを配合し
た請求項１の耐火性材料。4. The refractory material according to claim 1, wherein the acid-treated zeolite stone is coated with fine magnesia powder.
℃以下の温度で焼成して得られる活性マグネシアであっ
て、粒径５０μｍ以下で、比表面積が２５〜４０ｍ2／
ｇである請求項１の耐火性材料。5. Magnesia is a magnesium salt of 1000
An active magnesia obtained by calcining at a temperature of not more than ℃, having a particle size of not more than 50 μm and a specific surface area of 25 to 40 m 2 /
g.
シウムオキシ塩化合物が［ｎＭｇＯ・（ＭｇＣｌ2 ，Ｓ
Ｏ4 ，Ｐ2 Ｏ5 ）・ｍＨ2 Ｏ］（ｎ＝５〜１０）で表わ
されるものである請求項１の耐火性材料。6. The refractory material according to claim 1, wherein the magnesium oxysalt compound is [nMgO. (MgCl 2 , S
O 4, P 2 O 5) · mH 2 O] (n = 5~10) refractory material according to claim 1 which is intended to represent at.
が、１〜１０重量％の割合で配合されている請求項１の
耐火性材料。7. The refractory material according to claim 1, wherein the inorganic or synthetic resin-based hollow foam is blended at a ratio of 1 to 10% by weight.
求項１の耐火性材料。8. The refractory material according to claim 1, further comprising a polymer emulsion.
ッキした鉄筋によってかご状に配筋したＲＣ構造体から
なることを特徴とする請求項１ないし８のいずれかのマ
グネシア系軽量質耐火性材料。9. A magnesia-based light-weight refractory material according to claim 1, wherein the RC structure comprises a reinforcing member coated with a synthetic resin or an RC structure arranged in a cage with a galvanized reinforcing bar. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27126894A JP3537511B2 (en) | 1994-11-04 | 1994-11-04 | Magnesia ultra-lightweight refractory material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27126894A JP3537511B2 (en) | 1994-11-04 | 1994-11-04 | Magnesia ultra-lightweight refractory material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08133811A JPH08133811A (en) | 1996-05-28 |
| JP3537511B2 true JP3537511B2 (en) | 2004-06-14 |
Family
ID=17497720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27126894A Expired - Fee Related JP3537511B2 (en) | 1994-11-04 | 1994-11-04 | Magnesia ultra-lightweight refractory material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3537511B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007069351A1 (en) * | 2005-12-14 | 2007-06-21 | Azmec Co., Ltd. | Adsorbent-containing cold-setting composition, adsorbent-containing molded object, and building material and impregnant for paving both containing adsorbent |
-
1994
- 1994-11-04 JP JP27126894A patent/JP3537511B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08133811A (en) | 1996-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4174230A (en) | Gypsum compositions | |
| US12012361B2 (en) | Geopolymer cement | |
| JPWO2002066396A1 (en) | High strength calcium silicate cured product | |
| JP2004505876A (en) | Method for producing concrete or mortar using vegetable aggregate | |
| RU2378218C2 (en) | Raw composition for manufacturing of construction materials and products | |
| CN105350707A (en) | Mineral fiber reinforced green energy-saving environmentally-friendly novel wall and preparation method | |
| RU2361833C2 (en) | Complex modifier of concrete with polyfunctional action (versions) | |
| JP4453997B2 (en) | High strength hardened calcium silicate | |
| JPH08217561A (en) | Light-weight calcium silicate formed body and its production | |
| JP3373883B2 (en) | Light refractory structural material of zeolite-magnesia system | |
| KR20040100202A (en) | Concrete Composition for Lightweight and Sound Absorber and Method of Making The Same | |
| JP3537511B2 (en) | Magnesia ultra-lightweight refractory material | |
| JP2000143328A (en) | Heat insulating coating composition | |
| JPH03122060A (en) | Refractory coating composition having excellent adhesive force to iron | |
| CN1087071A (en) | Building material of volcanic ash for large wall | |
| JP2001329629A (en) | Heat-insulating coating granule | |
| JP2001072480A (en) | Heat-insulative coating composition | |
| JP2006001794A (en) | Moisture absorbing/releasing building material and method for producing the same | |
| KR20200047489A (en) | Room temperature curing non-cement composition for light weight block | |
| KR20030029419A (en) | Fireproof Reinforced Materials for Building Construction and Preparation Method Thereof | |
| JP2002338327A (en) | Method for producing moisture control building material | |
| JPH0761876A (en) | Production of inorganic hardened material | |
| JP2001058884A (en) | Production of calcium silicate hardened body | |
| JPH06321599A (en) | Refractory coating material | |
| JP2003062822A (en) | Method for manufacturing inorganic cured object |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20040206 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20040224 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20040317 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080326 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090326 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100326 Year of fee payment: 6 |
|
| LAPS | Cancellation because of no payment of annual fees |