JPH03218988A - Production of lightweight gas concrete product - Google Patents
Production of lightweight gas concrete productInfo
- Publication number
- JPH03218988A JPH03218988A JP1561690A JP1561690A JPH03218988A JP H03218988 A JPH03218988 A JP H03218988A JP 1561690 A JP1561690 A JP 1561690A JP 1561690 A JP1561690 A JP 1561690A JP H03218988 A JPH03218988 A JP H03218988A
- Authority
- JP
- Japan
- Prior art keywords
- cement
- agent
- water
- foam
- concrete 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 239000004567 concrete Substances 0.000 title description 7
- 239000004568 cement Substances 0.000 claims abstract description 29
- 239000000203 mixture Substances 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000006260 foam Substances 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 12
- 239000004088 foaming agent Substances 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 239000011381 foam concrete Substances 0.000 claims description 11
- 230000006378 damage Effects 0.000 abstract description 12
- 239000010881 fly ash Substances 0.000 abstract description 5
- 239000011396 hydraulic cement Substances 0.000 abstract description 4
- 239000003638 chemical reducing agent Substances 0.000 abstract description 3
- 238000005336 cracking Methods 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 abstract description 2
- GVXIVWJIJSNCJO-UHFFFAOYSA-L aluminum;calcium;sulfate Chemical compound [Al+3].[Ca+2].[O-]S([O-])(=O)=O GVXIVWJIJSNCJO-UHFFFAOYSA-L 0.000 abstract 1
- 238000004898 kneading Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 12
- 238000010521 absorption reaction Methods 0.000 description 6
- 239000000377 silicon dioxide Substances 0.000 description 5
- 238000009472 formulation Methods 0.000 description 4
- 229920000609 methyl cellulose Polymers 0.000 description 4
- 239000001923 methylcellulose Substances 0.000 description 4
- 235000010981 methylcellulose Nutrition 0.000 description 4
- 239000003381 stabilizer Substances 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 230000009746 freeze damage Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 2
- -1 calcium sulfate aluminate Chemical class 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000004034 viscosity adjusting agent Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229920001732 Lignosulfonate Polymers 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000002280 amphoteric surfactant Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Inorganic materials [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- YLGXILFCIXHCMC-JHGZEJCSSA-N methyl cellulose Chemical compound COC1C(OC)C(OC)C(COC)O[C@H]1O[C@H]1C(OC)C(OC)C(OC)OC1COC YLGXILFCIXHCMC-JHGZEJCSSA-N 0.000 description 1
- 125000005487 naphthalate group Chemical group 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
Landscapes
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
【発明の詳細な説明】
く産業上の利用分野）
この発明は、軽量気泡コンクリート品の製造方法に関す
るものである。さらに詳しくは、この発明は、建築材等
として広範囲な用途に有用な、耐凍害性および耐クラッ
ク性を向上させた軽量気泡コンクリート品のｌｌ！遣方
法に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a method for manufacturing lightweight cellular concrete products. More specifically, the present invention provides a lightweight cellular concrete product with improved frost damage resistance and crack resistance, which is useful for a wide range of applications such as construction materials. It is related to the method of sending.
（従来の技術）
従来より、外装材、内壁材、床材、天井材、断熱材、遮
音材等の建築材として、セメント材料と水との組成物に
気泡を導入して成形硬化した軽量気泡コンクリート品が
注目されてきており、たとえばＡＬＣがその代表的なも
のとして知られている。(Prior technology) Lightweight foams, which are molded and hardened by introducing air bubbles into a composition of cement material and water, have been used as building materials such as exterior materials, interior wall materials, flooring materials, ceiling materials, heat insulation materials, and sound insulation materials. Concrete products are attracting attention, and ALC, for example, is known as a typical example.
この軽量気泡コンクリート品の製造法としては、ポスト
フォーム法、プレフォーム法およびミックスフォーム法
が知られている。このうちのポストフォーム法はアルミ
ニウム粉末等の発泡剤をセメントペースト等の組成物に
混合し、成形型内に注型した後に発泡させる方法であり
、ＡＬＣはこの方法によって製造されている。The post-form method, pre-form method and mix-form method are known as methods for producing lightweight cellular concrete products. Among these, the post-forming method is a method in which a foaming agent such as aluminum powder is mixed with a composition such as cement paste, and the mixture is poured into a mold and then foamed, and ALC is manufactured by this method.
ミックスフォーム法はセメント組成物をペースト状にす
る際に気泡剤を投入して混合撹拌し、ペースト中に気泡
を抱き込ませる方法である。また、プレフォーム法は、
あらかじめ起泡剤および気泡安定剤によって生成させた
泡をセメントペースト等の組成物に混合し、次いで成形
型に注型して硬化させる方法である。The mix foam method is a method in which a foaming agent is added to the cement composition when it is made into a paste, mixed and stirred, and air bubbles are incorporated into the paste. In addition, the preform method is
This is a method in which foam generated in advance using a foaming agent and a foam stabilizer is mixed into a composition such as cement paste, and then poured into a mold and hardened.
（発明か解決しようとする課題）
しかしながら、このような軽量気泡コンクリート品の製
造においては、その製造上の特徴に由来する制約によっ
て気泡の独立性がそこなわれやすく、そのために、吸水
性が高く、本来的特長としての断熱性が著しく低下し、
また耐凍害性も低下するために、その使用が制限される
という問題があった。(Problem to be solved by the invention) However, in the production of such lightweight cellular concrete products, the independence of the bubbles is likely to be impaired due to constraints arising from the manufacturing characteristics, and as a result, water absorption is high. , the insulation properties as an original feature are significantly reduced,
Furthermore, the frost damage resistance is also reduced, which limits its use.
一般的には、気泡の独立性はプレフォーム法、ミックス
フォーム法の場合に比較的良好であるが、この方法によ
る場合にも、たとえば比ｆ！０．５〜０．８の低比重品
では耐水性、耐凍害性、耐クラック性の低下は避けられ
なかった．
このような欠点を解消するために、これまでにも軽量骨
材を使用するなどの配合面での工夫がなされてきている
か、それでも耐凍害性、耐クラック性等の向上は十分と
いえないのが実情である。In general, cell independence is relatively good in the preform method and the mix foam method, but even in the case of this method, for example, the ratio f! For products with a low specific gravity of 0.5 to 0.8, reductions in water resistance, frost damage resistance, and crack resistance were unavoidable. In order to eliminate these drawbacks, improvements have been made in terms of composition, such as the use of lightweight aggregates, but even so, improvements in frost damage resistance, crack resistance, etc. have not been sufficient. is the reality.
この発明は、このような課題を解決するためになされた
ものであり、プレフォーム法の特長を生かしつつ、耐凍
害性、耐クラック性を向上させることのできる改良され
た軽量気泡コンクリート品の製造方法を提供することを
目的としている。This invention was made to solve these problems, and aims to manufacture an improved lightweight cellular concrete product that can improve frost damage resistance and crack resistance while taking advantage of the features of the preform method. The purpose is to provide a method.
（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、セメン
ト材料と水との混練セメント組成物にあらかじめ起泡剤
によって生成させた泡を混合して成形硬化させる軽量気
泡コンクリート品のプレフォーム製造において、セメン
ト組成物に反応性骨材とさらに必要に応じて膨張剤とを
配合して成形硬化させることを特徴とする軽量気泡コン
クリート品の製造方法を提供する。(Means for Solving the Problems) This invention solves the above-mentioned problems by mixing a cement composition made of cement material and water with foam generated in advance by a foaming agent, and then molding and hardening the mixture. To provide a method for manufacturing a lightweight cellular concrete product, which is characterized in that, in manufacturing a preform for a cellular concrete product, a reactive aggregate and, if necessary, an expanding agent are mixed into a cement composition and the mixture is molded and hardened.
この方法において用いることのできるセメント材料は、
水硬性セメントに添加材、配合剤を加えたものとするこ
とかでき、水硬性セメントには、たとえば雷通ボルトラ
ンドセメント、ジェットセメント、スラグセメント等を
使用することかできる。添加材としての骨材には、珪砂
、珪砂粉末、フライアッシュ、シリカフラワー等の反応
性の高いものを使用する。Cement materials that can be used in this method include:
It is possible to use a hydraulic cement with additives and compounding agents added thereto, and for example, lightning boltland cement, jet cement, slag cement, etc. can be used as the hydraulic cement. As the aggregate used as an additive, highly reactive materials such as silica sand, silica sand powder, fly ash, and silica flour are used.
この反応性骨材は、水硬性セメントとの配合比が一般的
に重量比で６５／３５〜３５．／６５の範囲で使用する
のか好ましい。反応性骨材の使用量か少なすぎる場合に
は、耐凍害性、耐クラツク性の向上は期待できない．ま
た一方、多すぎる場合には、製品の重量増加をもたらす
ので好ましくない。The weight ratio of this reactive aggregate to hydraulic cement is generally 65/35 to 35. It is preferable to use the range of /65. If the amount of reactive aggregate used is too small, no improvement in frost damage or crack resistance can be expected. On the other hand, if it is too large, the weight of the product increases, which is undesirable.
また、この発明の方法においては、必要に応じて反応性
骨材とともに膨張剤をセメント組成物に配合する。この
膨張剤としては、たとえばカルシウムサルフェイトアル
ミネート系のものが好適なものとして例示される。その
配合量は、一般的には、セメントに対して重量比で３〜
１０％とするのか好ましい。Further, in the method of the present invention, an expanding agent is added to the cement composition together with the reactive aggregate, if necessary. Suitable examples of this expanding agent include those based on calcium sulfate aluminate. Generally, the blending amount is from 3 to 30% by weight relative to cement.
It is preferable to set it to 10%.
反応性骨材とこの膨張剤との併用は、耐凍害性、耐クラ
・・Ｉク性を大きく向上させる。The combined use of reactive aggregate and this expanding agent greatly improves frost damage resistance and crack resistance.
その他の添加成分としては、粘度調整剤、減水剤等があ
る。Other additive components include viscosity modifiers, water reducing agents, and the like.
たとえば粘度調整剤としてメチルセルロース等を用い、
スラリー粘軛を調整し、初期保型性を向上させることが
でき、また、減水剤としてリグニンスルホン酸塩、β−
ナフタリン酸塩等を２重量％以下の割合で配合して温水
比、流動性を調整するこどもできる．
プレフォーム法にともなう泡の生成については、たとえ
ば起泡剤を水に混合して圧縮空気とともに発泡器に導入
して生成することができるが、この場合の起泡剤として
は、蛋白質系、ノニオン界面活性剤系、両性界面活性剤
系、高分子多価金属塩等を単独で、ないしはその２種以
上のものを混合して使用することかできる。この際に、
多価カルボン酸系等の気泡安定剤を使用することが有効
でもある。この気泡安定剤の利用により、気泡寿命が延
び、気泡制御が容易となる。For example, using methyl cellulose as a viscosity modifier,
It is possible to adjust the slurry viscosity and improve initial shape retention, and as a water reducing agent, lignin sulfonate, β-
It is possible to adjust the hot water ratio and fluidity by adding naphthalates, etc. at a ratio of 2% by weight or less. Foam can be generated in the preform method by, for example, mixing a foaming agent with water and introducing it into a foaming machine together with compressed air. Surfactant systems, amphoteric surfactant systems, polymeric polyvalent metal salts, etc. can be used alone or in combination of two or more thereof. At this time,
It is also effective to use a foam stabilizer such as a polyhydric carboxylic acid type. Utilization of this bubble stabilizer extends bubble life and facilitates bubble control.
もちろん、以上の例に限られることなく、配合成分や泡
導入法等については様々な態様が可能であることはいう
までもない。Of course, the present invention is not limited to the above examples, and it goes without saying that various embodiments are possible regarding the ingredients, foam introduction method, etc.
（作 用）
この発明の方法においては、プレフォーム製造法におい
てセメント組成物に反応性骨材を配合し、また、必要に
応じて膨張剤を配合するため、マトリックスｍ遣が密と
なり、軽量性という特徴をそこなうことなく、軽量気泡
コンクリート品の耐凍害性、耐クラック性を大きく向上
させることが可能となる。(Function) In the method of the present invention, reactive aggregate is blended into the cement composition in the preform manufacturing method, and an expanding agent is blended as needed, so the matrix becomes dense and lightweight. It is possible to greatly improve the freeze damage resistance and crack resistance of lightweight aerated concrete products without impairing these characteristics.
（実施例）
以下、実施例を示し、さらに詳しくこの発明のの製造方
法について説明する。(Example) Hereinafter, an example will be shown and the manufacturing method of the present invention will be explained in more detail.
実施例 １
次の配合（重量部）；
普通ボトルランドセメント ４５珪石粉
４ｏフライアッシュ
１０膨張剤 ５（カル
シウム、サルフェイトアルミネ
ート、電気化学工業（株）製》
メチルセルロース ０．５からなるセメ
ント材料に、蛋白質系起泡剤を２０〜２５倍の水に稀釈
し、さらに気泡安定剤を起泡剤に対して１０重量部添加
した混合物から生成させた泡と水３０重量部とを混合、
混練し、セメント組成物の密度が０．８５ｔ／■５どな
るように調整した。Example 1 The following formulation (parts by weight): Ordinary bottle land cement 45 silica powder
4o fly ash
10 Expansion agent 5 (calcium, sulfate aluminate, manufactured by Denki Kagaku Kogyo Co., Ltd.) A cement material consisting of methylcellulose 0.5 is diluted with a protein-based foaming agent 20 to 25 times as much water, and a foam stabilizer is added. Mixing foam generated from a mixture in which 10 parts by weight of is added to a foaming agent and 30 parts by weight of water;
The mixture was kneaded and the density of the cement composition was adjusted to 0.85 t/5.
この組成物を成形型内に注型し、，硬化後に脱型した。This composition was poured into a mold and removed from the mold after curing.
１８０℃の温度で１０時間オートクレープ養生して密度
０．６３ｇ／＞’の軽量気泡コンクリート品を得た．こ
のものについて、その性能を評価した。表１に示した通
りの結果を得た。After curing in an autoclave for 10 hours at a temperature of 180°C, a lightweight aerated concrete product with a density of 0.63 g/>' was obtained. The performance of this product was evaluated. The results shown in Table 1 were obtained.
後述の比較例およびＡＬＣの場合との対比から明らかな
ように、吸水率は低く、酎凍害性、耐クラック（圧縮強
度）性にも優れていることか確認された。As is clear from the comparison with the comparative example and ALC described below, it was confirmed that the water absorption rate was low and that it was also excellent in frost damage resistance and crack resistance (compressive strength).
実施例 ２
次の配合（重量部）；
背通ボトルランドセメント ５０フライアッシュ
５０メチルセルロース
０．３からなるセメント材料に、実施例１と同様の
泡と水とを混合し、密度０． ８０ ｇ ７’ ｃｓ
’の組成物を調整した。Example 2 The following formulation (parts by weight): Back bottle land cement 50 fly ash 50 methyl cellulose
The same foam and water as in Example 1 were mixed with cement material consisting of 0.3, and the density was 0.3. 80g 7'cs
'The composition was adjusted.
実施例】と同様に成形、養生し、密度０．６ｆ／ｃｓ＋
３の軽量気泡コンクリート品を得た．このものの性能も
表１に示した。耐凍害性、耐クラック性は良好であった
．
実施例 ３
次の配合《重量部》；
普通ボトルランドセメント ４７フライアッシュ
５０膨脹剤
３メチルセルロース ０．２から
なるセメント材料を用い、、水３５重量部を用いて実施
例１と同様にして密度０．８７ｇ，／■３のセメント組
成物を調整し、成形および養生した。It was molded and cured in the same manner as Example], and the density was 0.6f/cs+.
3 lightweight aerated concrete products were obtained. The performance of this product is also shown in Table 1. Freeze damage resistance and crack resistance were good. Example 3 The following formulation (parts by weight): Ordinary bottle land cement 47 Fly ash 50 Expanding agent
A cement composition having a density of 0.87 g/3 was prepared in the same manner as in Example 1 using a cement material consisting of 0.2 methyl cellulose and 35 parts by weight of water, and was molded and cured.
密度０．６１ｇ／■３の軽量気泡コンクリート品を得た
、
表１に示したように、このものの耐凍害性、耐クラック
性は良好であった。A lightweight aerated concrete product with a density of 0.61 g/3 was obtained. As shown in Table 1, this product had good frost damage resistance and crack resistance.
比較例
次の配合（：ＩＩ部）：
雷通ボトルランドセメント ７０珪石粉
３０メチルセルロース
０．３のセメント材料より、実施例１と同様にして
密度０．８５ｇ／／■３のセメント組成物を調整し、成
形、養生した。密度０．６１ｔ／■３の軽量気泡コンク
リート品を得た。Comparative Example The following formulation (Part II): Raitsu Bottleland Cement 70 Silica Powder
30 methylcellulose
A cement composition having a density of 0.85 g//cm3 was prepared in the same manner as in Example 1 from the cement material having a density of 0.3, and was molded and cured. A lightweight cellular concrete product with a density of 0.61 t/■3 was obtained.
その性能を評価したが、表１に示したように実施例１〜
３に比べて吸水率は高く、乾燥収縮率も大きい。耐凍害
性、耐クラック性は劣っていた。The performance was evaluated, and as shown in Table 1, Examples 1-
Compared to No. 3, the water absorption rate is higher and the drying shrinkage rate is also higher. Freeze damage resistance and crack resistance were poor.
表
１
（注）
吸水率−・・２４時間吸水
乾煉収縮−・・養生後、
６０℃
耐凍害性−・−ＡＳＴＭ
Ｂ法
（発明の効果）
この発明により、以上詳しく説明した通り、耐凍害性、
酎クラック性に優れ、さらには乾燥時の寸法変化率が小
さく、その強度、吸水率のレベルをも向上させた高品質
の軽量気泡コンクリート品が提供される。Table 1 (Note) Water absorption rate: 24-hour water absorption dry shrinkage: 60°C after curing Freezing damage resistance: ASTM B method (effects of the invention) With this invention, as explained in detail above, freezing damage resistance: sex,
Provided is a high-quality lightweight cellular concrete product that has excellent cracking properties, a small dimensional change rate during drying, and improved levels of strength and water absorption.
これまでＡＬＣの使用が制限されていた分野でも軽量気
泡コンクリート品の使用が可能となり、その特長を生か
した用途分野の拡大が可能となる。Lightweight aerated concrete products can now be used in areas where the use of ALC was previously restricted, making it possible to expand the range of applications by taking advantage of its features.
Claims (1)
かじめ起泡剤によって生成させた泡を混合して成形硬化
させる軽量気泡コンクリート品のプレフォーム製造にお
いて、セメント組成物に反応性骨材とさらに必要に応じ
て膨張剤とを配合して成形硬化させることを特徴とする
軽量気泡コンクリート品の製造方法。(1) Mixing of cement material and water In the manufacture of preforms for lightweight cellular concrete products, the cement composition is mixed with foam previously generated by a foaming agent and then molded and hardened. A method for producing a lightweight cellular concrete product, which is characterized in that it is blended with an expanding agent as needed and then molded and hardened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1561690A JPH03218988A (en) | 1990-01-25 | 1990-01-25 | Production of lightweight gas concrete product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1561690A JPH03218988A (en) | 1990-01-25 | 1990-01-25 | Production of lightweight gas concrete product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03218988A true JPH03218988A (en) | 1991-09-26 |
Family
ID=11893642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1561690A Pending JPH03218988A (en) | 1990-01-25 | 1990-01-25 | Production of lightweight gas concrete product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03218988A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000014685A (en) * | 1998-08-24 | 2000-03-15 | 정종순 | Light insulating mortar composition having improved curing property and contraction-stability |
| JP2005126294A (en) * | 2003-10-24 | 2005-05-19 | Matsushita Electric Works Ltd | Manufacturing method of ceramic building material |
| KR100741756B1 (en) * | 2006-03-24 | 2007-07-24 | 한국지질자원연구원 | Incombustible panel for fireproof partition wall and method for manufacturing it |
-
1990
- 1990-01-25 JP JP1561690A patent/JPH03218988A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000014685A (en) * | 1998-08-24 | 2000-03-15 | 정종순 | Light insulating mortar composition having improved curing property and contraction-stability |
| JP2005126294A (en) * | 2003-10-24 | 2005-05-19 | Matsushita Electric Works Ltd | Manufacturing method of ceramic building material |
| JP4572527B2 (en) * | 2003-10-24 | 2010-11-04 | パナソニック電工株式会社 | Method for manufacturing ceramic building materials |
| KR100741756B1 (en) * | 2006-03-24 | 2007-07-24 | 한국지질자원연구원 | Incombustible panel for fireproof partition wall and method for manufacturing it |
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