JPH09142912A - Hardening inorganic composition - Google Patents
Hardening inorganic compositionInfo
- Publication number
- JPH09142912A JPH09142912A JP30751695A JP30751695A JPH09142912A JP H09142912 A JPH09142912 A JP H09142912A JP 30751695 A JP30751695 A JP 30751695A JP 30751695 A JP30751695 A JP 30751695A JP H09142912 A JPH09142912 A JP H09142912A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- powder
- inorganic
- sio
- parts
- 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.)
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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
- 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
- C04B28/24—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 alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
-
- 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
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、硬化性無機質組成
物に関する。[0001] The present invention relates to a curable inorganic composition.
【０００２】[0002]
【従来の技術】アルカリの存在下で熱により硬化する硬
化性無機質組成物は、建材等の用途に好適な無機質硬化
体を形成することができるので有用である。このような
硬化性無機質組成物としては、例えば、特開平４−５９
６４８号公報には、メタカオリン、コランダム、ムライ
トの製造時に発生する集塵装置の灰、フライアッシュ等
の無機粉体成分とアルカリ金属珪酸塩水溶液とを配合
し、更に、充填材及び有機ベントナイトを添加した成形
体用組成物が開示されている。また、特開平４−６１３
８号公報には、アルカリ金属珪酸塩水溶液、上述の無機
粉体成分及び充填材からなる組成物が開示されている。2. Description of the Related Art A curable inorganic composition which is cured by heat in the presence of an alkali is useful because it can form an inorganic cured product suitable for applications such as building materials. As such a curable inorganic composition, for example, JP-A-4-59 is available.
In Japanese Patent No. 648, an inorganic powder component such as ash and fly ash of a dust collector generated during the production of metakaolin, corundum, and mullite is mixed with an alkali metal silicate aqueous solution, and a filler and an organic bentonite are added. The composition for molded articles is disclosed. In addition, Japanese Patent Laid-Open No. 4-613
Japanese Unexamined Patent Publication No. 8 discloses a composition comprising an alkali metal silicate aqueous solution, the above-mentioned inorganic powder component and a filler.
【０００３】しかしながら、このような硬化性無機質組
成物に使用される上述の無機粉体成分のうち、産業廃棄
物でありその有効利用方法が求められているフライアッ
シュ等は、アルカリとの反応性が低いので、得られた無
機質硬化体は、耐水性、耐候性に劣り、建材等に適応す
る品質を有する無機質硬化体を得ることが困難であっ
た。However, among the above-mentioned inorganic powder components used in such a curable inorganic composition, fly ash and the like, which are industrial wastes and are required to be effectively used, are reactive with alkali. Therefore, it was difficult to obtain an inorganic cured product having a quality suitable for building materials and the like, because the obtained inorganic cured product was poor in water resistance and weather resistance.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、上記に鑑
み、耐水性及び耐候性に優れた無機質硬化体を得ること
が出来る硬化性無機質組成物を提供することを目的とす
る。SUMMARY OF THE INVENTION In view of the above, an object of the present invention is to provide a curable inorganic composition capable of obtaining an inorganic cured product having excellent water resistance and weather resistance.
【０００５】[0005]
【課題を解決するための手段】本発明の硬化性無機質組
成物は、（Ｉ）ＳｉＯ2 −Ａｌ2 Ｏ3 系反応性粉体、
（ＩＩ）アルカリ金属珪酸塩又は（及び）アルカリ金属
酸化物、（ＩＩＩ）水、（ＩＶ）１〜１０００ｍ2 ／ｇ
の比表面積を有する非晶質ＳｉＯ2 粉末及び（Ｖ）ヘキ
サフルオロ珪酸塩からなる。上記ＳｉＯ2 −Ａｌ2 Ｏ3
系反応性粉体（Ｉ）としては、ＳｉＯ2 １０〜９０重量
％、Ａｌ2 Ｏ3 ９０〜１０重量％の組成が好ましい。上
記反応性粉体（Ｉ）としては例えば、（ａ）粒径が２０
μｍ以下の粉体を８０重量％以上含有するフライアッシ
ュ、（ｂ）さらに、（ａ）のフライアッシュを４００〜
１０００℃で焼成したもの、（ｃ）フライアッシュ又は
粘土を溶融して気体中で噴霧することにより得られる無
機質粉体、（ｄ）粘土に０．１〜３０ｋＷｈ／ｋｇの機
械的エネルギーを作用させることにより得られる無機質
粉体、（ｅ）（ｄ）の無機質粉体を更に１００〜７５０
℃で加熱することにより得られる無機質粉体、（ｆ）メ
タカオリン等が挙げられる。これらは、２種以上を併用
しても良い。The curable inorganic composition of the present invention comprises (I) SiO 2 -Al 2 O 3 -based reactive powder,
(II) alkali metal silicate or (and) alkali metal oxide, (III) water, (IV) 1-1000 m 2 / g
Amorphous SiO 2 powder having a specific surface area of (V) and hexafluorosilicate (V). The SiO 2 -Al 2 O 3
The system-reactive powder (I) preferably has a composition of 10 to 90% by weight of SiO 2 and 90 to 10% by weight of Al 2 O 3 . The reactive powder (I) has, for example, (a) a particle size of 20.
Fly ash containing 80% by weight or more of powder having a particle size of less than or equal to μm, (b) and 400 to 400 of fly ash (a).
What was calcined at 1000 ° C., (c) an inorganic powder obtained by melting fly ash or clay and spraying in a gas, (d) mechanical energy of 0.1 to 30 kWh / kg is applied to the clay The inorganic powder thus obtained and the inorganic powders (e) and (d) are further added to 100 to 750.
Inorganic powder obtained by heating at ℃, (f) metakaolin and the like. These may be used in combination of two or more.
【０００６】上記アルカリ金属珪酸塩又はアルカリ金属
酸化物（ＩＩ）は、下記の一般式で示されるものであ
る。 Ｍ2 Ｏ・ｎＳｉＯ2 （式中、Ｍは、Ｌｉ、Ｋ又はＮａを
表す） 上記式中において、ＳｉＯ2 成分が多くなると水に溶解
したアルカリ金属珪酸塩水溶液がゲル化を起こしやすく
粘度が急上昇し、上記ＳｉＯ2 −Ａｌ2 Ｏ3 系反応性粉
体（Ｉ）との混合が困難となってくるので、好ましくは
ｎ＝０〜８、さらに好ましくはｎ＝０〜３、特に好まし
くはｎ＝０〜２．５である。また、上記式中、ｎ＝０の
場合はアルカリ金属酸化物のことを意味する。The alkali metal silicate or alkali metal oxide (II) is represented by the following general formula. M 2 O · nSiO 2 (wherein M represents Li, K or Na) In the above formula, when the SiO 2 component increases, the aqueous solution of the alkali metal silicate dissolved in water easily causes gelation and the viscosity rises sharply. However, since it becomes difficult to mix with the above-mentioned SiO 2 —Al 2 O 3 -based reactive powder (I), preferably n = 0 to 8, more preferably n = 0 to 3, and particularly preferably n. = 0 to 2.5. Further, in the above formula, when n = 0, it means an alkali metal oxide.
【０００７】また、上記アルカリ金属珪酸塩又はアルカ
リ金属酸化物（ＩＩ）は、水溶液として用いるのが好ま
しい。上記水溶液としての濃度は、低くなると上記Ｓｉ
Ｏ2 −Ａｌ2 Ｏ3 系反応性粉体（Ｉ）との反応性が低下
し、高くなると固形分が生じやすくなり上記ＳｉＯ2−
Ａｌ2 Ｏ3 系反応性粉体（Ｉ）との均一混合がしにくく
なるので、１〜７０重量％が好ましい。また、アルカリ
金属酸化物の場合、水に溶解した場合にはアルカリ金属
水酸化物溶液となる。また、アルカリ金属水酸化物溶液
に珪砂、珪石等のＳｉＯ2 成分をｎが所定の範囲の値と
なるように溶解しても良い。The alkali metal silicate or alkali metal oxide (II) is preferably used as an aqueous solution. When the concentration of the above-mentioned aqueous solution becomes low, the above-mentioned Si
If the reactivity with the O 2 —Al 2 O 3 -based reactive powder (I) is lowered, and if the reactivity is increased, a solid content is likely to be generated, and the above SiO 2 —
Since it becomes difficult to uniformly mix with the Al 2 O 3 -based reactive powder (I), 1 to 70% by weight is preferable. Further, in the case of an alkali metal oxide, it becomes an alkali metal hydroxide solution when it is dissolved in water. Further, a SiO 2 component such as silica sand and silica stone may be dissolved in an alkali metal hydroxide solution so that n is within a predetermined range.
【０００８】上記アルカリ金属珪酸塩又（及び）はアル
カリ金属酸化物（ＩＩ）の添加量は、少なくなると本発
明の無機質組成物の硬化反応が低下し、多くなると得ら
れる硬化体の耐水性が低下するので、ＳｉＯ2 −Ａｌ2
Ｏ3 系反応性粉体（Ｉ）１００重量部に対して、０．２
〜４５０重量部であり、好ましくは１０〜３５０重量部
であり、さらに好ましくは２０〜２５０重量部である。If the amount of the alkali metal silicate or (and) or the alkali metal oxide (II) added is reduced, the curing reaction of the inorganic composition of the present invention is lowered, and if it is increased, the water resistance of the obtained cured product is increased. SiO 2 -Al 2
0.2 with respect to 100 parts by weight of O 3 -based reactive powder (I)
To 450 parts by weight, preferably 10 to 350 parts by weight, and more preferably 20 to 250 parts by weight.
【０００９】水（ＩＩＩ）の添加量は、少なくなると、
ＳｉＯ2 −Ａｌ2 Ｏ3 系反応性粉体（Ｉ）と混合性が低
下し、多くなると得られる無機質硬化体の機械的強度が
低下するので、ＳｉＯ2 −Ａｌ2 Ｏ3 系反応性粉体
（Ｉ）１００重量部に対して、１０〜１５００重量部で
あり、好ましくは１０〜１０００重量部であり、より好
ましくは１０〜５００重量部である。When the amount of water (III) added decreases,
Since the mixing property with the SiO 2 —Al 2 O 3 -based reactive powder (I) decreases and the mechanical strength of the resulting inorganic cured product decreases, the SiO 2 —Al 2 O 3 -based reactive powder decreases. (I) 10 to 1500 parts by weight, preferably 10 to 1000 parts by weight, and more preferably 10 to 500 parts by weight, relative to 100 parts by weight.
【００１０】本発明に用いられる非晶質ＳｉＯ2 粉末
（ＩＶ）の比表面積は、小さくなると無機質組成物の硬
化反応が低下し、大きくなると製造上での限界があるの
で１〜１０００ｍ2 ／ｇであり、好ましくは１０〜５０
０ｍ2 ／ｇである。When the specific surface area of the amorphous SiO 2 powder (IV) used in the present invention is small, the curing reaction of the inorganic composition is low, and when it is large, there is a limit in the production. Therefore, the specific surface area is 1 to 1000 m 2 / g. And preferably 10 to 50
0 m 2 / g.
【００１１】上記非晶質ＳｉＯ2 粉末（ＩＶ）の添加量
は、少なくなると得られた硬化体の耐水性が低下し、多
くなると本発明における組成物の混合性が低下するので
１〜３００重量部である。When the amount of the above-mentioned amorphous SiO 2 powder (IV) added decreases, the water resistance of the obtained cured product decreases, and when the addition amount increases, the mixing property of the composition of the present invention decreases. It is a department.
【００１２】本発明において用いられるヘキサフルオロ
珪酸塩（Ｖ）は、下記の一般式で示されるものである。 Ｍ（Ｉ）2 ＳｉＦ6 もしくはＭ（ＩＩ）2 ＳｉＦ6 上記一般式において、Ｍ（Ｉ）＝Ｌｉ、Ｎａ、Ｋ；Ｍ
（ＩＩ）＝Ｍｇ、Ｃａから選択される１種以上の金属で
あって、添加量が少なくなると得られる無機質硬化体の
耐久性が低下し、多くなると無機質硬化体の機械的強度
が低下するので、ＳｉＯ2 −Ａｌ2 Ｏ3 系反応性粉体
（Ｉ）１００重量部に対して、１〜１００重量部であ
る。The hexafluorosilicate (V) used in the present invention is represented by the following general formula. M (I) 2 SiF 6 or M (II) 2 SiF 6 In the above general formula, M (I) = Li, Na, K; M
(II) = one or more kinds of metals selected from Mg and Ca, the durability of the obtained inorganic cured product decreases when the addition amount decreases, and the mechanical strength of the inorganic cured product decreases when the addition amount increases. , 1 to 100 parts by weight with respect to 100 parts by weight of the SiO 2 —Al 2 O 3 based reactive powder (I).
【００１３】本発明の無機質組成物は、必要に応じて、
発泡剤、無機充填材、補強繊維、発泡助剤、有機質発泡
体もしくは無機質発泡体等をさらに添加されても良い。
上記発泡剤としては、過酸化水素、過酸化ナトリウム、
過酸化カリウム、過ほう酸ナトリウム等の金属過酸化
物、Ｍｇ、Ｃａ、Ｃｒ、Ｍｎ、Ｆｅ、Ｃｏ、Ｎｉ、Ｃ
ｕ、Ｚｎ、Ａｌ、Ｇａ、Ｓｎ、Ｓｉ、フェロシリコン等
の金属粉末等が挙げられるが、コスト、安全性、入手の
容易さ、混合のし易さ等の点で過酸化水素および金属ア
ルミニウム粉末が好ましい。The inorganic composition of the present invention, if necessary,
A foaming agent, an inorganic filler, a reinforcing fiber, a foaming aid, an organic foam or an inorganic foam may be further added.
As the foaming agent, hydrogen peroxide, sodium peroxide,
Metal peroxides such as potassium peroxide and sodium perborate, Mg, Ca, Cr, Mn, Fe, Co, Ni, C
Examples thereof include metal powders such as u, Zn, Al, Ga, Sn, Si, and ferrosilicon. However, hydrogen peroxide and metal aluminum powders are preferable in terms of cost, safety, availability, mixing, and the like. Is preferred.
【００１４】上記発泡剤の添加量は、少なくなると発泡
倍率が小さ過ぎ、発泡効果が得られにくくなり、多くな
ると発泡ガスが過剰となり破泡しやすくなるので、上記
ＳｉＯ2 −Ａｌ2 Ｏ3 系反応性粉体（Ｉ）１００重量部
に対して０．０１〜１０重量部が好ましい。If the amount of the foaming agent added is too small, the expansion ratio is too small, and the foaming effect is difficult to obtain. If the amount is too large, the foaming gas becomes excessive and the cells are easily broken, so that the SiO 2 -Al 2 O 3 system is used. 0.01 to 10 parts by weight is preferable with respect to 100 parts by weight of the reactive powder (I).
【００１５】上記発泡剤として過酸化水素を用いる場合
は、水溶液として用いるのが好ましい。この水溶液濃度
は、低くなると水の量が多くなり粘度低下により発泡の
安定性が低下し、高くなると発泡が速くなり安定した発
泡状態が形成しにくくなるので、好ましくは０．５〜３
５重量％、より好ましくは１〜２５重量％、更に好まし
くは５〜１５重量％である。上記発泡剤として金属粉末
を用いる場合は、平均粒径１〜２００μｍのものが好ま
しい。１μｍ未満であると、分散性が低下するととも
に、反応性が高くなり発泡が速くなりすぎ、２００μｍ
を越えると、反応性が低下する。When hydrogen peroxide is used as the foaming agent, it is preferably used as an aqueous solution. When the concentration of this aqueous solution is low, the amount of water is large and the viscosity is low, so that the stability of foaming is lowered, and when it is high, the foaming is fast and it is difficult to form a stable foamed state.
It is 5% by weight, more preferably 1 to 25% by weight, still more preferably 5 to 15% by weight. When a metal powder is used as the foaming agent, the average particle size is preferably 1 to 200 μm. When it is less than 1 μm, the dispersibility is lowered, the reactivity is increased, and the foaming is too fast.
If it exceeds, the reactivity decreases.
【００１６】上記無機質充填材は、硬化時の収縮低減、
スラリーの流動性向上、セルの緻密化、気泡の安定化等
を図ることが出来る。上記無機質充填材としては、特に
限定されず、例えば、珪砂、珪石粉、フライアッシュ、
スラグ、シリカヒューム、マイカ、ワラストナイト、炭
酸カルシウム、エアロジル、シリカゲル、ゼオライト、
活性炭、アルミナゲル等の多孔質粉体等が挙げられる。
上記無機質充填材は、平均粒径０．０１μｍ〜１ｍｍの
ものが好ましい。０．０１μｍ未満であると、吸着水量
の増加によって粘度が上昇して作業性が低下し、１ｍｍ
を越えると、発泡が安定しなくなる。上記無機質充填材
の添加量は、上記ＳｉＯ2 −Ａｌ2 Ｏ3 系反応性粉体
（Ｉ）１００重量部に対して、７００重量部以下が好ま
しい。７００重量部を越えると、得られる無機質硬化体
の強度低下を起こす。より好ましくは１０〜５００重量
部である。The above-mentioned inorganic filler reduces shrinkage upon curing,
It is possible to improve the fluidity of the slurry, densify the cells, stabilize the bubbles, and the like. The inorganic filler is not particularly limited, for example, silica sand, silica stone powder, fly ash,
Slag, silica fume, mica, wollastonite, calcium carbonate, aerosil, silica gel, zeolite,
Examples thereof include activated carbon and porous powder such as alumina gel.
The inorganic filler preferably has an average particle size of 0.01 μm to 1 mm. If it is less than 0.01 μm, the viscosity is increased due to the increase in the amount of adsorbed water and the workability is reduced, resulting in 1 mm.
If it exceeds, foaming becomes unstable. The addition amount of the inorganic filler is preferably 700 parts by weight or less with respect to 100 parts by weight of the SiO 2 —Al 2 O 3 based reactive powder (I). If it exceeds 700 parts by weight, the strength of the obtained inorganic cured product will decrease. It is more preferably 10 to 500 parts by weight.
【００１７】上記補強繊維は、強度向上、クラック防止
等を図るものであって、例えば、ビニロン、ポリプロピ
レン、アラミド、アクリル、レーヨン等の有機繊維；カ
ーボン、ガラス、チタン酸カリウム、アルミナ、鋼、ス
ラグウール等の無機繊維等が挙げられる。上記補強繊維
の繊維長は、長くなると分散性が低下し、短くなると混
合時に再凝集し、ファイバーボールを形成して、得られ
る無機質硬化体の強度が向上しにくくなるので、１〜１
５ｍｍが好ましく、繊維径は１〜５００μｍが好まし
い。上記補強繊維の添加量は、上記ＳｉＯ2 −Ａｌ2 Ｏ
3 系反応性粉体（Ｉ）１００重量部に対して１０重量部
以下が好ましい。１０重量部を越えると、繊維の分散性
が低下する。The above-mentioned reinforcing fibers are for improving strength, preventing cracks, etc., and are, for example, organic fibers such as vinylon, polypropylene, aramid, acrylic, rayon; carbon, glass, potassium titanate, alumina, steel, slag. Inorganic fibers such as wool can be used. When the fiber length of the reinforcing fiber becomes long, the dispersibility decreases, and when it becomes short, it reaggregates at the time of mixing to form a fiber ball, and it becomes difficult to improve the strength of the obtained inorganic cured body.
5 mm is preferable, and the fiber diameter is preferably 1 to 500 μm. The amount of the reinforcing fiber added is the same as that of the SiO 2 —Al 2 O.
It is preferably 10 parts by weight or less with respect to 100 parts by weight of the 3 type reactive powder (I). When it exceeds 10 parts by weight, the dispersibility of the fibers is deteriorated.
【００１８】上記有機質発泡体及び上記無機質発泡体は
得られる無機質硬化体の軽量化を図ることができる。上
記有機質発泡体としては特に限定されず、例えば、塩化
ビニル、フェノール、ユリア、スチレン、ウレタン、エ
チレン等の合成樹脂の粒状発泡体等が挙げられる。これ
らは、単独で又は２種以上を混合して用いることが出来
る。上記無機質発泡体としては特に限定されず、例え
ば、ガラスバルーン、シラスバルーン、フライアッシュ
バルーン、シリカバルーン、パーライト、ヒル石、粒状
発泡シリカ等が挙げられる。これらは、単独で又は２種
以上を混合して用いることができる。また、上記有機質
発泡体と上記無機質発泡体とを混合して用いることもで
きる。The organic foam and the inorganic foam can reduce the weight of the obtained inorganic cured body. The organic foam is not particularly limited, and examples thereof include particulate foams of synthetic resins such as vinyl chloride, phenol, urea, styrene, urethane, and ethylene. These may be used alone or in admixture of two or more. The inorganic foam is not particularly limited, and examples thereof include a glass balloon, a shirasu balloon, a fly ash balloon, a silica balloon, a pearlite, a hillstone, and a granular foamed silica. These can be used alone or in combination of two or more. Further, the organic foam and the inorganic foam may be mixed and used.
【００１９】上記有機質発泡体及び無機質発泡体の比重
は、小さいと得られる無機質硬化体の機械的強度が低下
し、大きいと得られる無機質硬化体の軽量化の効果が得
られにくくなるので、好ましくは０．０１〜１であり、
より好ましくは０．０３〜０．７である。又、上記有機
質発泡体及び無機質発泡体の添加量は、少なくなると得
られる無機質硬化体の軽量化の効果が得られにくくな
り、多くなると得られる無機質硬化体の機械的強度が低
下するので、上記ＳｉＯ2 −Ａｌ2 Ｏ3 系反応性粉体
（Ｉ）１００重量部に対して、好ましくは１０〜１００
重量部であり、より好ましくは、３０〜８０重量部であ
る。When the specific gravity of the organic foam and the inorganic foam is small, the mechanical strength of the obtained inorganic cured product is lowered, and when the specific gravity is large, the effect of reducing the weight of the obtained inorganic cured product is difficult to obtain. Is 0.01 to 1,
More preferably, it is 0.03 to 0.7. Further, the addition amount of the organic foam and the inorganic foam, it becomes difficult to obtain the effect of reducing the weight of the obtained inorganic cured body, the mechanical strength of the obtained inorganic cured body decreases, so the above, It is preferably 10 to 100 relative to 100 parts by weight of SiO 2 —Al 2 O 3 based reactive powder (I).
Parts by weight, and more preferably 30 to 80 parts by weight.
【００２０】本発明の硬化性無機質組成物から無機質硬
化体を得るには例えば、上記アルキル金属珪酸塩又は
（及び）アルキル金属酸化物（ＩＩ）を加熱、加圧下で
上記水（ＩＩＩ）に溶解し、更に、上記ＳｉＯ2 −Ａｌ
2 Ｏ3 系反応性粉体（Ｉ）、非晶質ＳｉＯ2 粉末（Ｉ
Ｖ）、ヘキサフルオロ珪酸塩（Ｖ）、及び必要に応じて
充填材、補強繊維等を混合し、得られた混合物を、注
型、押圧成形等の公知の方法等により所望の形状に賦形
した後、硬化させる方法等を採用することが出来る。こ
の場合において、上記硬化の温度は、常温でも良いが、
硬化反応を促進でき、得られる無機質硬化体の機械的物
性をより向上させるという点で、５０〜２００℃の温度
範囲で加熱する方が好ましい。To obtain an inorganic cured product from the curable inorganic composition of the present invention, for example, the above alkyl metal silicate or (and) alkyl metal oxide (II) is dissolved in the above water (III) under heating and pressure. In addition, the above-mentioned SiO 2 -Al
2 O 3 -based reactive powder (I), amorphous SiO 2 powder (I
V), hexafluorosilicate (V), and if necessary, a filler, a reinforcing fiber and the like are mixed, and the obtained mixture is shaped into a desired shape by a known method such as casting or press molding. After that, a method of curing it can be adopted. In this case, the curing temperature may be room temperature,
It is preferable to heat in the temperature range of 50 to 200 ° C. from the viewpoint that the curing reaction can be accelerated and the mechanical properties of the obtained inorganic cured product can be further improved.
【００２１】[0021]
【実施例】以下に実施例を掲げて本発明を更に詳しく説
明するが、本発明はこれら実施例のみに限定されるもの
ではない。The present invention will be described in more detail with reference to the following examples, but the present invention is not limited to these examples.
【００２２】（実施例１〜１０）以下の方法により、以
下内容の反応性粉体Ａ、Ｂ及びＣを得た。 〔ＳｉＯ2 −Ａｌ2 Ｏ3 系反応性粉体Ａ〕ＳｉＯ2 ５
２．９重量％、Ａｌ2 Ｏ3 ４５．５重量％、Ｆｅ2 Ｏ3
０．３重量％、ＴｉＯ2 ０．６重量％、その他０．７重
量％の成分からなり平均粒径が３．３μｍのメタカオリ
ン（商品名「ＳＴＡＴＩＮＴＯＮＥ ＳＰ ３３」；エ
ンゲルハート社製）。(Examples 1 to 10) Reactive powders A, B and C having the following contents were obtained by the following method. [SiO 2 —Al 2 O 3 System Reactive Powder A] SiO 2 5
2.9% by weight, Al 2 O 3 45.5% by weight, Fe 2 O 3
Metakaolin (trade name "STATINTONE SP 33"; manufactured by Engelhart) having an average particle size of 3.3 μm and composed of 0.3% by weight, 0.6% by weight of TiO 2 , and 0.7% by weight of other components.
【００２３】〔ＳｉＯ2 −Ａｌ2 Ｏ3 系反応性粉体Ｂ〕
上記反応性粉体Ｂ、１．７ｋｇを、粉砕機（商品名「ウ
ルトラファインミルＡＴ−２０」；ジルコニアボール１
０ｍｍΦ使用、ボール充填率８５％；三菱重工業社製）
に、粉砕助剤であるトリエタノールアミン２５％のエタ
ノール溶液１０ｇと共に供給し、９．９ｋＷｈ／ｋｇ
（３時間×３．３ｋＷ／ｋｇ）の機械的エネルギーを作
用させて得られた粉体（ＳｉＯ2 ５２．３重量％、Ａｌ
2 Ｏ3 ４５．０重量％、Ｆｅ2 Ｏ3 ０．５重量％、Ｔｉ
Ｏ2 １．５重量％、その他０．７重量％の成分からなり
平均粒径が２．９μｍ）。[SiO 2 -Al 2 O 3 System Reactive Powder B]
1.7 kg of the reactive powder B was crushed by a crusher (trade name "Ultra Fine Mill AT-20"; zirconia ball 1).
0mmΦ used, ball filling rate 85%; Mitsubishi Heavy Industries Ltd.)
Was fed with 10 g of an ethanol solution containing 25% of triethanolamine, which is a grinding aid, at 9.9 kWh / kg.
Powder (SiO 2 52.3 wt%, Al obtained by applying mechanical energy of (3 hours × 3.3 kW / kg))
2 O 3 45.0% by weight, Fe 2 O 3 0.5% by weight, Ti
O 2 1.5% by weight and other 0.7% by weight, having an average particle size of 2.9 μm).
【００２４】〔ＳｉＯ2 −Ａｌ2 Ｏ3 系反応性粉体Ｃ〕
フライアッシュ（平均粒径２０μｍ、ＪＩＳ Ａ ６２
０１に準拠；関電化工社製）を、分級機（商品名「ＴＣ
−１５」；日清エンジニアリング社製）により分級し、
粒径が１０μｍ以下の粉体を１００重量％含有する粉体
（ＳｉＯ2 ５８．７重量％、Ａｌ2 Ｏ3 ２４．２重量
％、Ｆｅ2 Ｏ3 ６．９重量％、ＴｉＯ2 １．１重量％、
その他９．１重量％の成分からなり平均粒径５μｍ）。[SiO 2 -Al 2 O 3 System Reactive Powder C]
Fly ash (average particle size 20 μm, JIS A 62
Compliant with 01; KANDEN KAKO CO., LTD., Classifier (trade name "TC
-15 "; manufactured by Nisshin Engineering Co., Ltd.),
Powder containing 100% by weight of powder having a particle size of 10 μm or less (SiO 2 58.7% by weight, Al 2 O 3 24.2% by weight, Fe 2 O 3 6.9% by weight, TiO 2 1.1 weight%,
Others consisting of 9.1% by weight of components and having an average particle size of 5 μm).
【００２５】アルカリ金属水酸化物水溶液として、水酸
化カリウムの３６％水溶液（和光純薬社製）を使用し
た。As the alkali metal hydroxide aqueous solution, a 36% aqueous solution of potassium hydroxide (manufactured by Wako Pure Chemical Industries, Ltd.) was used.
【００２６】アルカリ金属珪酸塩水溶液として、珪酸カ
リウム水溶液（日本化学工業社製；モル比ＳｉＯ2 ：Ｋ
2 Ｏ＝１．２：１、４４重量％水溶液およびモル比Ｓｉ
Ｏ2：Ｋ2 Ｏ＝１．４：１、４５％水溶液）を使用し
た。As the alkali metal silicate aqueous solution, an aqueous potassium silicate solution (manufactured by Nippon Kagaku Kogyo Co., Ltd .; molar ratio SiO 2 : K) is used.
2 O = 1.2: 1, 44% by weight aqueous solution and molar ratio Si
O 2 : K 2 O = 1.4: 1, 45% aqueous solution) was used.
【００２７】非晶質ＳｉＯ2 粉末として、粉末Ｄ（商品
名「アエロジル３８０」、日本アエロジル社製；比表面
積３６７．５ｍ2 ／ｇ）及び粉末Ｅ（商品名「シリカヒ
ューム」、東京興行貿易商会社製；比表面積２１．５ｍ
2 ／ｇ）を使用した。As the amorphous SiO 2 powder, powder D (trade name “Aerosil 380”, manufactured by Nippon Aerosil Co., Ltd .; specific surface area 367.5 m 2 / g) and powder E (trade name “Silica fume”, Tokyo Box Trader) Made by company; specific surface area 21.5m
2 / g) was used.
【００２８】ヘキサフルオロ珪酸塩として、ヘキサフル
オロ珪酸カリウム（Ｋ2 ＳｉＦ6 ）を使用した。As the hexafluorosilicate, potassium hexafluorosilicate (K 2 SiF 6 ) was used.
【００２９】充填材として、８号珪砂（関本建材社
製）、珪石粉（商品名「ファインシリカ」、住友セメン
ト社製；ブレーン値）を使用した。No. 8 silica sand (manufactured by Sekimoto Kenzai Co., Ltd.) and silica stone powder (trade name "FINE SILICA", manufactured by Sumitomo Cement Co .; Blaine value) were used as fillers.
【００３０】表１、２に示した配合組成によりＳｉＯ2
−Ａｌ2 Ｏ3 系反応性粉体Ａ、Ｂ及びＣ、８号珪砂（関
本建材社製）、珪石粉、珪酸カリウム水溶液、非晶質Ｓ
ｉＯ 2 粉末及びヘキサフルオロ珪酸カリウムを、それぞ
れ、オムニミキサーに供給して５分間混合した後、得ら
れた混合物を１５０×１５０×１０ｍｍの型枠内に注入
し、型枠ごと８５℃の熱風乾燥機中で１０時間加熱させ
て、実施例１〜１０の無機質硬化体をそれぞれ得た。得
られた各無機質硬化体を脱型して５０℃で１０時間乾燥
した後、下記の項目について、その物性を下記評価方法
で調べた。その結果を表１、２に示した。SiO in the composition shown in Tables 1 and 2Two
-AlTwoOThreeSystem reactive powders A, B and C, No. 8 silica sand (Seki
(Manufactured by this building material), silica stone powder, potassium silicate aqueous solution, amorphous S
iO TwoPowder and potassium hexafluorosilicate, respectively
And fed to an omni mixer and mixed for 5 minutes,
Pour the mixture into a mold of 150 x 150 x 10 mm
Then, heat the mold together in a hot air dryer at 85 ° C for 10 hours.
Thus, the inorganic cured bodies of Examples 1 to 10 were obtained. Profit
Each of the cured inorganic materials is demolded and dried at 50 ° C for 10 hours
Then, the physical properties of the following items are evaluated by the following evaluation methods.
I checked in. The results are shown in Tables 1 and 2.
【００３１】〔評価方法〕 １．曲げ強度 得られた無機質硬化体をＪＩＳ Ａ１４０８の方法に準
拠して、曲げ強度を測定した。 ２．熱水試験 得られた無機質硬化体を９８℃の熱水中に２時間浸浸し
た後、２４時間乾燥し、外観を目視で観察し、異常の見
られないものに○、表面に粉が発生しているものには×
を記した。 ３．促進耐候性試験 得られた無機質硬化体を、ＪＩＳ Ｋ５４００に準拠し
て、５００時間、促進耐候性試験に供した後、外観を目
視で観察して異常の見られないものを○とし、表面に粉
が発生しているものは×とした。[Evaluation Method] 1. Flexural strength The flexural strength of the obtained inorganic cured product was measured according to the method of JIS A1408. 2. Hot water test The obtained inorganic cured product was immersed in hot water of 98 ° C for 2 hours, dried for 24 hours, and visually inspected for external appearance. What you are doing ×
Was written. 3. Accelerated weather resistance test After subjecting the obtained inorganic cured product to an accelerated weather resistance test for 500 hours in accordance with JIS K5400, the one visually observing the external appearance is marked with ◯ and the surface is Those in which powder was generated were marked with x.
【００３２】[0032]
【表１】 [Table 1]
【００３３】[0033]
【表２】 [Table 2]
【００３４】[0034]
【発明の効果】本発明の硬化性無機質組成物は、上述の
構成により、吸水防止性に優れ、耐水性、耐候性に優れ
た無機質硬化体を得ることができ、建材等の用途に好適
に使用することができる。EFFECTS OF THE INVENTION The curable inorganic composition of the present invention, which has the above-mentioned constitution, can provide an inorganic cured product having excellent water absorption prevention properties, water resistance and weather resistance, and is suitable for applications such as building materials. Can be used.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０４Ｂ 22:12） 103:60 111:27 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI technical display area C04B 22:12) 103: 60 111: 27
Claims (1)
体１００重量部、（ＩＩ）アルカリ金属珪酸塩又は（及
び）アルカリ金属酸化物０．２〜４５０重量部、（ＩＩ
Ｉ）水１０〜１５００重量部、（ＩＶ）１〜１０００ｍ
2 ／ｇの比表面積を有する非晶質ＳｉＯ2 粉末１〜３０
０重量部及び、（Ｖ）ヘキサフルオロ珪酸塩１〜１００
重量部からなることを特徴とする硬化性無機質組成物。1. (I) 100 parts by weight of SiO 2 -Al 2 O 3 -based reactive powder, (II) 0.2 to 450 parts by weight of alkali metal silicate or (and) alkali metal oxide, (II)
I) 10 to 1500 parts by weight of water, (IV) 1 to 1000 m
Amorphous SiO 2 powder having a specific surface area of 2 / g 1 to 30
0 parts by weight and (V) hexafluorosilicate 1-100
A curable inorganic composition, characterized in that it comprises 1 part by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30751695A JPH09142912A (en) | 1995-11-27 | 1995-11-27 | Hardening inorganic composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30751695A JPH09142912A (en) | 1995-11-27 | 1995-11-27 | Hardening inorganic composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09142912A true JPH09142912A (en) | 1997-06-03 |
Family
ID=17970029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30751695A Pending JPH09142912A (en) | 1995-11-27 | 1995-11-27 | Hardening inorganic composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09142912A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100918427B1 (en) * | 2009-02-17 | 2009-09-24 | 주식회사 포스코건설 | Si/al composite additive for seaside concrete and concrete composition using the same |
| JP2018535919A (en) * | 2015-11-06 | 2018-12-06 | アレッシ，ヴィンス | Process for providing inorganic polymer ceramic-like materials |
| JP2019196300A (en) * | 2018-05-07 | 2019-11-14 | 日本インシュレーション株式会社 | Heat insulation material and manufacturing method therefor, and composition |
-
1995
- 1995-11-27 JP JP30751695A patent/JPH09142912A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100918427B1 (en) * | 2009-02-17 | 2009-09-24 | 주식회사 포스코건설 | Si/al composite additive for seaside concrete and concrete composition using the same |
| JP2018535919A (en) * | 2015-11-06 | 2018-12-06 | アレッシ，ヴィンス | Process for providing inorganic polymer ceramic-like materials |
| JP2019196300A (en) * | 2018-05-07 | 2019-11-14 | 日本インシュレーション株式会社 | Heat insulation material and manufacturing method therefor, and composition |
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