JPH0610097B2 - Hardened product of alkali metal salt of silicic acid - Google Patents
Hardened product of alkali metal salt of silicic acidInfo
- Publication number
- JPH0610097B2 JPH0610097B2 JP17317884A JP17317884A JPH0610097B2 JP H0610097 B2 JPH0610097 B2 JP H0610097B2 JP 17317884 A JP17317884 A JP 17317884A JP 17317884 A JP17317884 A JP 17317884A JP H0610097 B2 JPH0610097 B2 JP H0610097B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- alkali metal
- metal salt
- silicic acid
- cured product
- 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 - Lifetime
Links
- -1 alkali metal salt Chemical class 0.000 title claims description 7
- 229910052783 alkali metal Inorganic materials 0.000 title claims description 5
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 title claims description 5
- 235000012239 silicon dioxide Nutrition 0.000 title claims description 5
- 239000011575 calcium Substances 0.000 claims description 13
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 10
- 229910052791 calcium Inorganic materials 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 13
- 229910001653 ettringite Inorganic materials 0.000 description 11
- 239000004115 Sodium Silicate Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 235000019353 potassium silicate Nutrition 0.000 description 7
- 150000003839 salts Chemical class 0.000 description 7
- 229910052911 sodium silicate Inorganic materials 0.000 description 7
- 239000000243 solution Substances 0.000 description 6
- 239000011521 glass Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 241000282693 Cercopithecidae Species 0.000 description 1
- 239000004111 Potassium silicate Substances 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052910 alkali metal silicate Inorganic materials 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 description 1
- 229910052912 lithium silicate Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229910052913 potassium silicate Inorganic materials 0.000 description 1
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本硬化物は耐熱塗料、防蝕塗料、建築吹付材、注入補修
材、地盤強化材、防水材、耐火接着剤、充填材料、発泡
軽量材料等の用途に使用できる。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) This cured product is a heat resistant paint, anticorrosive paint, construction spraying material, injection repair material, ground reinforcement material, waterproof material, fire resistant adhesive, filling material, foamed lightweight material, etc. It can be used for.
（従来の技術） 従来より、ケイ酸ナトリウムを加熱すると水を失って硬
化することが知られている。しかし、生じた硬化物は水
溶性であるため、種々の無機粉末を添加することによ
り、耐水性を向上させていた。(Prior Art) It has been conventionally known that when sodium silicate is heated, it loses water and hardens. However, since the resulting cured product is water-soluble, the water resistance was improved by adding various inorganic powders.
一方、常温硬化型として水ガラスにケイふつ化ソーダを
添加して成る硬化物も知られているが、水に対する不溶
性という点では完全でなく、用途が限定されていた。ま
た、硬化時間を広範囲に調整することが困難であるとい
う問題もあった。On the other hand, a cured product obtained by adding sodium fluorinated silica to water glass is also known as a room temperature curing type, but it is not completely insoluble in water and its use is limited. There is also a problem that it is difficult to adjust the curing time over a wide range.
（発明が解決しようとする問題点） 本発明は、水に対する溶解性が小さく、安定で、且つ硬
化時間を巾広く調節できる、工業的応用の広い硬化物を
得ることを目的とする。(Problems to be Solved by the Invention) An object of the present invention is to obtain a cured product which has a small solubility in water, is stable, and has a wide curing time, and which has a wide range of industrial applications.
（問題点を解決するための手段） 本発明は、ケイ酸アルカリ金属塩溶液にカルシウムサル
フォアルミネート組成物の粉末を、添加してなることを
特徴とするケイ酸のアルカリ金属塩の硬化物に係わる。(Means for Solving Problems) The present invention is characterized by comprising adding a powder of a calcium sulphoaluminate composition to an alkali metal silicate solution, and curing the alkali metal salt of silicic acid. Involved in
本発明で使用するケイ酸のアルカリ金属塩としては、た
とえば水ガラスが挙げられるが、他に、ケイ酸リチウ
ム、ケイ酸カリウム等も挙げることができる。The alkali metal salt of silicic acid used in the present invention includes, for example, water glass, but other examples include lithium silicate and potassium silicate.
本発明で使用するカルシウムサルフォアルミネート組成
物は、エトリンガイト（Ｃ3Ａ・３ＣａＳＯ4・３２Ｈ2
Ｏ）、モノサルフェート（Ｃ3Ａ・ＣａＳＯ4・１２Ｈ2
Ｏ）；エトリンガイト、モノサルフェートの加熱脱水
物；およびアウイン（Ｃ3Ａ3・ＣａＳＯ4）とＣａＯ、
Ｃａ（ＯＨ）2、ＣａＳＯ4等の混合物を挙げることがで
きる。エトリンガイトは、たとえば２００゜C以上で加熱
することにより、結合水を失い、Ｃ3Ａ・３ＣａＳＯ4に
相当する組成物となる。これらの脱水物は水ガラス溶液
中で水分を奪って、含水塩エトリンガイトに戻る。The calcium sulfaluminate composition used in the present invention is composed of ettringite (C 3 A.3CaSO 4 .32H 2
O), monosulfate (C 3 A · CaSO 4 · 12H 2
O); heat-dehydrated ettringite, monosulfate; and hain (C 3 A 3 · CaSO 4 ) and CaO,
A mixture of Ca (OH) 2 , CaSO 4, etc. may be mentioned. Ettringite loses bound water and becomes a composition corresponding to C 3 A.3CaSO 4 by heating at 200 ° C. or higher, for example. These dehydrated products remove water in the water glass solution and return to the hydrated salt ettringite.
これらの中では、無水エトリンガイトが最も優れた硬化
体を与える。Among these, anhydrous ettringite gives the best cured product.
また、カルシュウムサルフォアルミネート化合物である
アウイン（Ｃ3Ａ3・ＣａＳＯ4）と、ＣａＯ及び（又
は）Ｃａ（ＯＨ）2、及び（又は）ＣａＳＯ4等の混合物
であってもよい。これらは、コンクリート膨張剤として
市販されている。なお、カルシウムサルフォアルミネー
トのＡ2Ｏ3の一部をＦｅ2Ｏ3と置換、あるいは固溶さ
せた化合物であってもよい。Further, a calcium monkey follower is aluminate compound Auin (C 3 A 3 · CaSO 4 ), it may be CaO and (or) Ca (OH) 2, and (or) CaSO mixture of such 4. These are commercially available as concrete expanding agents. A compound in which a part of A 2 O 3 of calcium sulphoaluminate is replaced with Fe 2 O 3 or solid solution may be used.
この場合は、水ガラス溶液中でカルシウムサルフォアル
ミネートの含水塩であるエトリンガイトを反応生成す
る。In this case, ettringite, which is a hydrous salt of calcium sulfaluminate, is reacted and produced in a water glass solution.
このように、本発明の硬化体は、水ガラス中にカルシウ
ムサルフォアルミネートの含水塩を混入する、脱水物を
混入して水和させる。又は含水塩を形成する混合組成物
を混入して速やかに含水塩を反応生成させる、といった
方法により製造しうる。As described above, the cured product of the present invention is hydrated by mixing a dehydrated product in which water-containing salt of calcium sulfaluminate is mixed in water glass. Alternatively, it can be produced by a method in which a mixed composition forming a hydrated salt is mixed and a hydrated salt is promptly reacted and produced.
要するに、水ガラス中にカルシウムサルフォアルミネー
トの含水塩が存在又は形成することが、硬化および安定
化にとって必要なことである。In short, the presence or formation of a hydrous salt of calcium sulfaluminate in water glass is necessary for hardening and stabilization.
本発明の硬化物を使用するに当っては、従来使用されて
来た焼成粘土、石綿、酸化亜鉛等の充填剤を併用するこ
とが出来るし、塗料、吹付材等の用途に対しては顔料、
骨材を混入して使用することができる。In using the cured product of the present invention, a conventionally used filler such as calcined clay, asbestos and zinc oxide can be used in combination, and a pigment for applications such as paints and spraying materials. ,
Aggregate can be mixed and used.
（作用） 本発明によれば、カルシウムサルフエアルミネート組成
物の粉末を混入するだけで、常温で硬化する。また、得
られた硬化物が水に対して安定なのは、カルシウムサル
フォアルミネートの含水塩、例えばエトリンガイトが水
に対して、かなり安定であることによってもたらされた
結果であろうと推定される。(Operation) According to the present invention, it is hardened at room temperature simply by mixing the powder of the calcium sulfaluminate composition. It is presumed that the obtained cured product is stable to water as a result of the fact that the hydrous salt of calcium sulfoaluminate, for example, ettringite, is considerably stable to water.
（実施例） 以下、実施例に基づき具体的に説明する。(Example) Hereinafter, it demonstrates concretely based on an Example.
実施例１ ２号珪酸ナトリウム（日本化学工業製）を水で希釈し、
比重1.54に調整した。この珪酸ナトリウム溶液1.3kgに
対して、市販のエトリンガイト（３２水塩）（白石工業
社製のサチンホワイト）のスラリーを濾過、乾燥したの
ち、粉砕して得られる。エトリンガイトの乾燥粉末２５
０ｇを加え、コロイドミル（特殊化工機社製）通じて分
散させた。Example 1 No. 2 sodium silicate (manufactured by Nippon Kagaku Kogyo) was diluted with water,
The specific gravity was adjusted to 1.54. A slurry of commercially available ettringite (32-hydrate) (Sachin White manufactured by Shiraishi Kogyo Co., Ltd.) was filtered and dried with respect to 1.3 kg of this sodium silicate solution, and then pulverized. Dry powder of ettringite 25
0 g was added and dispersed through a colloid mill (made by Tokushu Kakoki Co., Ltd.).
得られたペーストは、約２０分後に流動性を失い徐々に
硬化した。ペーストをガラス板に塗布した試料を１週
間、放置して硬化させた後、水道水中に浸漬して耐水性
を調べたところ、１ケ月を経過しても全く変化が見られ
なかった。The resulting paste lost its fluidity after about 20 minutes and gradually hardened. A sample in which the paste was applied to a glass plate was left standing for 1 week to cure, and then immersed in tap water to examine the water resistance. No change was observed even after one month.
実施例２ 工業用ケイ酸ナトリウム（３号）に水を加えて、比重1.
50になるよう希釈した。この珪酸ナトリウム溶液1.1kg
に対して、市販の製紙願料用のエトリンガイトのスラリ
ー（白石工業社製のサチンホワイト）を濾過、乾燥した
のち、３ミリメートル以下に砕き、６００℃で１時間、
電気濾中で焼成して脱水させた、無水エトリンガイトの
粉末３５０ｇを加え、コロイドミル（特殊化工機社製）
を通じて分散を行わせた。Example 2 Water was added to industrial sodium silicate (No. 3) to give a specific gravity of 1.
Diluted to 50. 1.1 kg of this sodium silicate solution
On the other hand, a commercially available slurry of ettringite for papermaking application (Sachin White manufactured by Shiraishi Industry Co., Ltd.) was filtered, dried, and then crushed to 3 mm or less, and 600 ° C. for 1 hour,
Add 350 g of anhydrous ettringite powder that has been dehydrated by firing in an electric filter, and add colloid mill (made by Tokushu Kakoki Co., Ltd.)
Disperse through.
得られたペーストをポリエステルフィルムの上に伸ば
し、３日間放置して厚み0.5ミリメートルのフィルム状
の硬化物を得た。The obtained paste was spread on a polyester film and left for 3 days to obtain a film-shaped cured product having a thickness of 0.5 mm.
硬化物を水道水中に浸し、耐水性を調べたところ、３ケ
月を経過しても溶損といった変化は認められなかった。When the cured product was dipped in tap water and the water resistance was examined, no change such as erosion was observed even after 3 months.
実施例３ 工業用珪酸ナトリウム（３号）に水を加え、比重1.42に
なるよう希釈した。この珪酸ナトリウム溶液2.65に対
して、コンクリートの膨張材（デンカＣＳＡ＃２０（電
気化学工業社製）の粉末６００ｇを加え、リボンミキサ
ーに入れて１５分間混合を行った。Example 3 Water was added to industrial sodium silicate (No. 3) and diluted to have a specific gravity of 1.42. To this sodium silicate solution 2.65, 600 g of a powder of a concrete expansive material (Denka CSA # 20 (manufactured by Denki Kagaku Kogyo Co., Ltd.) was added, and the mixture was put in a ribbon mixer and mixed for 15 minutes.
得られた流動物をガラス板に塗布した硬化物を得、約１
時間で硬化したのち、３日間放置し、更に乾燥器に入
れ、150℃で２４時間、加熱硬化させた。The obtained fluid is applied to a glass plate to obtain a cured product, which is about 1
After curing in time, the mixture was left for 3 days, placed in a drier, and cured by heating at 150 ° C. for 24 hours.
ガラス板に付着した硬化膜を水道水に浸して、耐水性の
変化を調べたところ、１ケ月を経過しても溶損は認めら
れなかった。When the cured film attached to the glass plate was immersed in tap water and the change in water resistance was examined, no erosion damage was observed even after one month.
なお、デンカＣＳＡ＃２０はＸ線解析の結果、Ｃ3Ａ3Ｃ
ａＳＯ4、ＣａＳＯ4、ＣａＯ、Ｃａ（ＯＨ）2の回析線
が検出された。DENKA CSA # 20 shows C 3 A 3 C as a result of X-ray analysis.
Diffraction lines of aSO 4 , CaSO 4 , CaO and Ca (OH) 2 were detected.
（発明の効果） 本発明の硬化物は次のような特徴を持っている。(Effect of the Invention) The cured product of the present invention has the following features.
１．得られる硬化物は接着力があり、水に対して極めて
安定である。1. The obtained cured product has adhesiveness and is extremely stable to water.
２．硬化時間は、数秒−１日程度まで自由に変えること
が可能であり、このように調節の巾が大きいため、使用
し易く、用途を多方面にし、且つ種々な性質を持つ硬化
物が得られる。2. The curing time can be freely changed from several seconds to about one day. Due to such a wide range of adjustment, it is easy to use, has versatile uses, and a cured product having various properties can be obtained. .
３．寸法変化が少なく、安定している。3. Stable with little dimensional change.
４．物性を広範囲に変え得る。4. The physical properties can be changed over a wide range.
Claims (1)
サルフォアルミネート組成物の粉末を添加してなること
を特徴とするケイ酸のアルカリ金属塩の硬化物1. A cured product of an alkali metal salt of silicic acid, which comprises adding a powder of a calcium sulfaluminate composition to a solution of an alkali metal salt of silicic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17317884A JPH0610097B2 (en) | 1984-08-22 | 1984-08-22 | Hardened product of alkali metal salt of silicic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17317884A JPH0610097B2 (en) | 1984-08-22 | 1984-08-22 | Hardened product of alkali metal salt of silicic acid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6153142A JPS6153142A (en) | 1986-03-17 |
| JPH0610097B2 true JPH0610097B2 (en) | 1994-02-09 |
Family
ID=15955533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17317884A Expired - Lifetime JPH0610097B2 (en) | 1984-08-22 | 1984-08-22 | Hardened product of alkali metal salt of silicic acid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0610097B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2049528A1 (en) * | 1990-09-13 | 1992-03-14 | Heinrich Aichinger | The catilytic decomposition of dinitrogen monoxide which is pure or present in gas mixtures |
| DE4128629A1 (en) * | 1991-08-29 | 1993-03-04 | Basf Ag | SILVER-CONTAINING CARRIER CATALYST AND METHOD FOR THE CATALYTIC DECOMPOSITION OF NITROGEN MONOXIDE |
-
1984
- 1984-08-22 JP JP17317884A patent/JPH0610097B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6153142A (en) | 1986-03-17 |
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