JPH0623732A - Production of ceramic concrete - Google Patents
Production of ceramic concreteInfo
- Publication number
- JPH0623732A JPH0623732A JP4200121A JP20012192A JPH0623732A JP H0623732 A JPH0623732 A JP H0623732A JP 4200121 A JP4200121 A JP 4200121A JP 20012192 A JP20012192 A JP 20012192A JP H0623732 A JPH0623732 A JP H0623732A
- Authority
- JP
- Japan
- Prior art keywords
- mixture
- molded product
- molding
- heat
- peripheral surface
- 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
- 239000004567 concrete Substances 0.000 title claims abstract description 26
- 239000000919 ceramic Substances 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims description 17
- 239000000203 mixture Substances 0.000 claims abstract description 22
- 230000002093 peripheral effect Effects 0.000 claims abstract description 14
- 239000012768 molten material Substances 0.000 claims abstract description 12
- 229910052882 wollastonite Inorganic materials 0.000 claims abstract description 10
- 239000010456 wollastonite Substances 0.000 claims abstract description 10
- 238000001035 drying Methods 0.000 claims abstract description 8
- 239000000835 fiber Substances 0.000 claims abstract description 8
- 230000005484 gravity Effects 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000011396 hydraulic cement Substances 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims description 15
- 239000002657 fibrous material Substances 0.000 claims description 2
- 238000000465 moulding Methods 0.000 abstract description 23
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 230000032683 aging Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 239000004568 cement Substances 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- 239000004566 building material Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 229910004298 SiO 2 Inorganic materials 0.000 description 4
- 238000010304 firing Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 239000004575 stone Substances 0.000 description 4
- 238000005336 cracking Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 239000011398 Portland cement Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000011400 blast furnace cement Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001723 curing Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 239000011372 high-strength concrete Substances 0.000 description 1
- 239000008141 laxative Substances 0.000 description 1
- 230000002475 laxative effect Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000008030 superplasticizer Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Landscapes
- Aftertreatments Of Artificial And Natural Stones (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は遠心成形による建材用セ
ラミックコンクリートの製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing ceramic concrete for building materials by centrifugal molding.
【０００２】[0002]
【従来の技術】現在市販されている大型のセラミック建
材は、例えばウオラストナイト繊維、セメントおよびシ
リカ粉末よりなる水性スラリーを抄造機にかけてシート
にし、このシートを高圧プレスにより脱水し、オートク
レーブ養生した後、施釉し、焼成して製造されるものが
あり、この製法によれば厚さ約５ｍｍ、横約１ｍ、縦約
２ｍの大型パネルを製造することができる。また、ウオ
ラストナイト繊維や粘土からなる混合物を円筒状に押し
出し、得られた円筒状成形品を母線に沿って切り開いて
板状にし、この板状体をローラーによって多段圧延して
所望の寸法の板状体とし、これを施釉焼成したものもあ
り、この製法によればパネル厚さ約５ｍｍで１ｍ×２ｍ
程度の寸法の大型パネルを製造することができる。これ
らのパネル製品には多量のウオラストナイト繊維が含ま
れていて優れた寸法安定性を有しているが、このような
従来技術には、厚さが大きくかつ大寸法のセラミック
コンクリート製品および施釉建材などは製造できない；
製造時に反りや捻れが生じないようにするためには、
厳格な製造管理が必要である；等の欠点が挙げられる。2. Description of the Related Art Large-scale ceramic building materials currently on the market are prepared by, for example, applying an aqueous slurry composed of wollastonite fibers, cement and silica powder to a sheet-making machine into a sheet, dehydrating the sheet with a high-pressure press, and curing it in an autoclave. Some of them are manufactured by glazing and firing. According to this manufacturing method, a large panel having a thickness of about 5 mm, a width of about 1 m, and a length of about 2 m can be manufactured. In addition, a mixture of wollastonite fibers and clay is extruded into a cylindrical shape, the obtained cylindrical molded product is cut along the generatrix into a plate shape, and the plate-shaped body is subjected to multistage rolling with a roller to obtain a desired size. There is also a plate-shaped body that is glazed and fired, and according to this manufacturing method, the panel thickness is about 5 mm and 1 m x 2 m.
It is possible to manufacture a large-sized panel having a size of a certain degree. Although these panel products contain a large amount of wollastonite fibers and have excellent dimensional stability, such conventional techniques include ceramic concrete products with large thickness and large size and glazed products. Building materials cannot be manufactured;
In order to prevent warping and twisting during manufacturing,
Strict manufacturing control is required;
【０００３】一方、成形したコンクリートの表面に直接
施釉し、焼成してセラミック建材を製造する方法が提案
されているが、焼成時においてコンクリート強度が低下
すること、およびコンクリートと釉薬との付着が乏しい
ことなどの欠点がある。また、コンクリート製品の耐熱
性を改善するために、近年、従来のセメント混和物に溶
融材を混合し、セメントの硬化した後に加熱処理するこ
とにより強度の高いコンクリート製品を製造することが
行われている。しかしながら、このようにして得られた
コンクリート製品は寸法安定性が低く、反りを生じ易
く、大型製品の製造は困難であり、しかも、高価な溶融
材を大量に使用するので実用化し難いという欠点があ
る。On the other hand, there has been proposed a method for producing a ceramic building material by directly glazing the surface of the molded concrete and firing it, but the concrete strength is lowered during firing and the adhesion between the concrete and the glaze is poor. There are some drawbacks. In addition, in order to improve the heat resistance of concrete products, in recent years, it has been carried out to mix high-strength concrete products by mixing a conventional cement admixture with a melting material and heating the cement after hardening. There is. However, the concrete product thus obtained has low dimensional stability, is likely to warp, is difficult to produce a large product, and has a drawback that it is difficult to put into practical use because a large amount of expensive melting material is used. is there.
【０００４】[0004]
【発明が解決しようとする課題】本発明の目的は、上記
のような従来技術におけるセラミック建材の製造方法の
種々の欠点を排除し、極めて少量の溶融材を使用し、従
来技術では製造が困難であった厚型でしかも大型のセラ
ミックコンクリート建材の製造方法を提供することであ
る。SUMMARY OF THE INVENTION The object of the present invention is to eliminate the above-mentioned various drawbacks of the method for producing a ceramic building material in the prior art, to use an extremely small amount of the molten material, and to make the production difficult in the prior art. It is to provide a method of manufacturing a thick and large-sized ceramic concrete building material which was the above.
【０００５】[0005]
【課題を解決するための手段・作用】本発明によれば、
上記の課題は、水硬性セメント、耐熱性骨材、ウオラス
トナイト繊維、溶融材などの原料を水と共に混合し、得
られた混合物を遠心成形して比重の大きい成分を成形品
の外周面に移行させ、この成形品を養生、乾燥した後、
加熱処理することを特徴とするセラミックコンクリート
の製造方法によって解決される。また、上記の方法にお
いて、遠心成形により得た成形品を養生、乾燥した後、
この成形品の外周面に更に釉薬などを塗布した後、加熱
処理することを特徴とするセラミックコンクリートの製
造方法により達成される。According to the present invention,
The above-mentioned problem is to mix the raw materials such as hydraulic cement, heat resistant aggregate, wollastonite fiber, and molten material together with water, and centrifuge the obtained mixture to form a component having a large specific gravity on the outer peripheral surface of the molded product. After transferring, curing and drying this molded product,
It is solved by a method for producing a ceramic concrete, which is characterized by performing heat treatment. Further, in the above method, after curing and drying the molded product obtained by centrifugal molding,
This can be achieved by a method for producing a ceramic concrete, which is characterized in that a glaze or the like is further applied to the outer peripheral surface of this molded product, and then heat treatment is performed.
【０００６】本発明方法による前記混合物は水硬性セメ
ント１５〜４０重量部、耐熱性骨材３０〜６０重量部、
ウオラストナイト繊維０．５〜３５重量部、溶融材５〜
３０重量部からなり、更に所望により．１〜１．０重量
部の減水剤を添加することができる。本発明方法におい
て使用する水硬性セメントとしては、一般に市販されて
いるものが使用できて、例えば普通ポルトランドセメン
ト、白色セメント、高炉セメント、アルミナセメント、
ジェットセメント等何れでもよく、その使用量は混合物
１００重量部に対して１５重量部以下では脱型強度が得
られず、４０重量部以上ではセメントペースト量が多く
なり熱による劣化を受けクラックの発生する危険性が高
くなる。The mixture prepared by the method of the present invention comprises 15 to 40 parts by weight of hydraulic cement, 30 to 60 parts by weight of heat resistant aggregate,
Wollastonite fiber 0.5 to 35 parts by weight, molten material 5 to
30 parts by weight, and if desired. 1 to 1.0 parts by weight of a water reducing agent can be added. As the hydraulic cement used in the method of the present invention, those commercially available can be used, for example, ordinary Portland cement, white cement, blast furnace cement, alumina cement,
Jet cement or the like may be used, and if the amount used is 15 parts by weight or less relative to 100 parts by weight of the mixture, demolding strength cannot be obtained, and if it is 40 parts by weight or more, the amount of cement paste increases and cracks occur due to deterioration due to heat. The risk of doing so increases.
【０００７】本発明方法において使用する耐熱性骨材と
しては、耐熱性を有する骨材であれば、何れでも良く、
抗火石、珪砂、珪石、軽量骨材、シャモット、陶器粉砕
物、火山灰、シェルベン、スラグ等が挙げられ、加熱後
の強度を考えるならば抗火石が最も適当である。骨材は
蓄熱作用を有しているため、その使用量が混合物１００
重量部に対して３０重量部以下では反りやクラックが生
じ、また６０重量部以上になると加熱前あるいは加熱後
の強度が不足しクラックが生じる。The heat-resistant aggregate used in the method of the present invention may be any heat-resistant aggregate,
Anti-fire stones, silica sand, silica stones, lightweight aggregates, chamotte, ground ceramics, volcanic ash, shelvene, slag, etc. are mentioned, and anti-fire stones are most suitable when considering the strength after heating. Since the aggregate has a heat storage effect, the amount used is 100% of the mixture.
If the amount is 30 parts by weight or less with respect to parts by weight, warping or cracking occurs, and if the amount is 60 parts by weight or more, the strength before or after heating is insufficient and cracking occurs.
【０００８】本発明方法において使用するウオラストナ
イト繊維は、ＳｉＯ2 とＣａＯとの反応により生成した
ＣａＯ・ＳｉＯ2 の組成を有する化合物からなり、特に
アスペクト比が約１０〜２０のものが好ましい。その使
用量は混合物１００重量部に対して０．５重量部以下で
は加熱後の冷却時における熱衝撃を緩衝する作用が劣
り、クラックや反りを生じ、３５重量部以上では練り混
ぜが非常に困難となり、良好な成形体が得られない。The wollastonite fiber used in the method of the present invention is composed of a compound having a composition of CaO.SiO 2 produced by the reaction of SiO 2 and CaO, and particularly preferably has an aspect ratio of about 10-20. If the amount used is less than 0.5 parts by weight with respect to 100 parts by weight of the mixture, the effect of buffering the thermal shock during cooling after heating is inferior, and cracks and warpage occur, and if it is more than 35 parts by weight, it is very difficult to mix. Therefore, a good molded product cannot be obtained.
【０００９】本発明方法において使用する溶融材として
は、ＳｉＯ2 、ＣａＯ、Ｂ2 Ｏ3 およびアルカリ成分
（Ｎａ2 Ｏ、Ｋ2 Ｏなど）からなり、その他ＭｇＯ、Ａ
ｌ2 Ｏ3 、ＰｂＯ、ＺｎＯ、Ｆｅ2 Ｏ3 、ＴｉＯ2 また
は金属粉末等を含有していてもよい。また通常の組成の
ガラス粉末、上薬、水ガラスも使用できる。その使用量
は、５重量部より少ないと加熱後の強度が不足するため
にクラックが生じ、３０重量部より多くなると加熱中の
形状安定性が悪くなり変形を生じ、また、溶融性物質を
充分に練り混ぜることが困難になり、溶融物質粉末中の
空気が成形体表面に気泡となって現われ、成形体の品質
が低下する。これらのバインダーは適宜に組合せて使用
することができる。The melting material used in the method of the present invention is composed of SiO 2 , CaO, B 2 O 3 and an alkaline component (Na 2 O, K 2 O, etc.), and MgO, A and others.
It may contain l 2 O 3 , PbO, ZnO, Fe 2 O 3 , TiO 2, metal powder, or the like. Further, glass powder, laxative, and water glass having a usual composition can also be used. If the amount used is less than 5 parts by weight, cracking occurs due to insufficient strength after heating, and if it exceeds 30 parts by weight, shape stability during heating deteriorates and deformation occurs. It becomes difficult to knead and mix, and the air in the molten substance powder appears as bubbles on the surface of the molded body, and the quality of the molded body deteriorates. These binders can be used in an appropriate combination.
【００１０】本発明において使用する釉薬としては、焼
成温度が７００〜１０００℃である通常の陶磁器用釉薬
であり、熱膨張係数の小さいものが好ましい。本発明方
法の遠心成形は、図１に示すような装置によって行われ
る。図１は遠心成形機の一例の横断面図を示したもので
あって、円筒形の鋼製成形枠（１）を水平に設置し、鉄
筋かご（４）を成形枠の中に入れ、所定量の本発明によ
る混合物を成形枠の中空室（５）内に全長にわたって均
等に盛り込み、形枠を閉じ、支柱（３）に支持されてい
る遠心機の一対の車輪（２，２）の上に載せ、この車輪
をモーター（図示してない）により回転させて遠心成形
が行われる。遠心成形の条件は成形する混合物のコンシ
ステンシー、各成分の配合割合などによって変動する
が、通常１５０〜８００ｒｐｍで３〜２０分間行われ
る。この遠心成形工程の間に、混合物中の比重の大きい
成分であるセメントおよび溶融材は、成形品の外周面に
移行濃縮させるため、遠心力の選定はきわめて重要であ
る。遠心力と回転速度との関係は次式に示す。The glaze used in the present invention is a normal glaze for ceramics having a firing temperature of 700 to 1000 ° C., and one having a small coefficient of thermal expansion is preferable. Centrifugal molding of the method of the present invention is performed by an apparatus as shown in FIG. FIG. 1 shows a cross-sectional view of an example of a centrifugal molding machine, in which a cylindrical steel molding frame (1) is installed horizontally, and a rebar cage (4) is placed in the molding frame. On the pair of wheels (2, 2) of the centrifuge supported by the columns (3), a fixed amount of the mixture according to the invention is evenly filled over the entire length in the hollow chamber (5) of the forming frame, the form is closed. Then, the wheel is rotated by a motor (not shown) to perform centrifugal molding. The conditions for centrifugal molding vary depending on the consistency of the mixture to be molded, the blending ratio of each component, etc., but are usually 150 to 800 rpm for 3 to 20 minutes. During this centrifugal molding step, cement and molten material, which are components having a large specific gravity in the mixture, migrate to the outer peripheral surface of the molded product and are concentrated. Therefore, selection of centrifugal force is extremely important. The relationship between the centrifugal force and the rotation speed is shown in the following equation.
【００１１】 [0011]
【００１２】ここに、ｆ：遠心力の重力の加速度（ｇ）
に対する比、ｒ：回転の半径（ｃｍ）、ｎ：回転速度
（ｒｐｓ）、ｇ：重力の加速度（９８０ｃｍ／ｓｅ
ｃ2 ）。ｆは１０〜５０ｇであることが望ましい。こう
して得られた遠心成形品を養生し、成形枠から取り出
し、乾燥した後、加熱処理することによって本願発明の
セラミックコンクリートが得られる。Where f: acceleration of gravity due to centrifugal force (g)
Ratio, r: radius of rotation (cm), n: rotational speed (rps), g: acceleration of gravity (980 cm / se)
c 2 ). It is desirable that f is 10 to 50 g. The thus obtained centrifugally molded product is cured, taken out from the molding frame, dried, and then heat-treated to obtain the ceramic concrete of the present invention.
【００１３】こうして得られたセラミックコンクリート
は、溶融材がその外周面に濃縮されているので、従来の
ものと比較して極めて少ない溶融材使用量で、外周面の
セラミック材料部分から内周面のコンクリート材料部分
にわたり連続的に変化した組織を有している。また、上
記のように遠心成形された遠心成形品を養生、乾燥した
後、この成形品の外周面に更に釉薬などを塗布した後、
加熱処理することによって、従来の施釉コンクリートの
場合に見られるような成形品表面層の釉薬と成形品内部
のコンクリートとの間の材質の不連続な組織が生じるこ
とがなく、従って施釉部分の剥離を生じ難い施釉コンク
リートが得られる。In the ceramic concrete thus obtained, since the molten material is concentrated on the outer peripheral surface thereof, the amount of the molten material used is extremely small as compared with the conventional one, and the ceramic material portion from the outer peripheral surface to the inner peripheral surface is reduced. It has a structure that continuously changes over the concrete material part. Further, after curing the centrifugally molded product centrifugally molded as described above and drying, after further applying glaze or the like to the outer peripheral surface of this molded product,
The heat treatment does not cause a discontinuous structure of the material between the glaze on the surface layer of the molded product and the concrete inside the molded product, which is seen in the case of conventional glazed concrete. It is possible to obtain glazed concrete that is hard to generate.
【００１４】本発明方法によれば、遠心成形により成形
を行うので、厚手でかつ大型のセラミックコンクリート
複合建材を製造することができる。以下の実施例によっ
て、本発明を更に具体的に説明する。 実施例１ 水硬性セメントとして市販のポルトランドセメント２０
部（重量部：以下同じ）、溶融材（組成：ＳｉＯ2 ４０
％、Ａｌ2 Ｏ3 ５％、ＣａＯ５％、Ｎａ2 Ｏ５％、Ｋ2
Ｏ２％、ＰｂＯ２５％、Ｂ2 Ｏ3 １０％）１０部、耐熱
性骨材として最大粒径５ｍｍ以下の抗火石５０部、ウオ
ラストナイト繊維２０部、高性能減水剤０．３部を２２
部の水と共に混練して混合物を作り、この混合物を型枠
に入れて遠心成形し、φ３０ｃｍ×長さ１ｍ×厚さ２ｃ
ｍの円筒状供試体を成形した。この供試体を６０℃湿空
中で３時間蒸気養生し、次いで１１０℃で２４時間乾燥
した後、９００℃で６０分間加熱処理した。こうして得
られたセラミックコンクリートは、美しいセラミック表
面を有し、圧縮強度が５００ｋｇｆ／ｃｍ2 であり、９
００℃加熱処理による収縮がわずか０．３％であった。 実施例２ 実施例１と同じ条件で遠心成形、養生、乾燥を行い、得
られた供試体の表面に更にスプレーガンにより、釉薬ス
ラリー（釉薬：カルボキシメチルセルロース：水（重量
比）＝１００：０．３：６０）を１．０ｋｇ／ｍ2 の厚
さで施した後、１１０℃で２時間乾燥し、さらに、昇温
し、９００℃で６０分間加熱処理した。こうして得られ
たセラミックコンクリートは、表面剥離の生じ難い美麗
な施釉面を有し、圧縮強度が５２０ｋｇｆ／ｃｍ2 であ
り、９００℃加熱処理による収縮がわずか０．３％であ
った。According to the method of the present invention, since molding is performed by centrifugal molding, it is possible to manufacture a thick and large-sized ceramic concrete composite building material. The present invention will be described more specifically by the following examples. Example 1 Portland cement 20 commercially available as hydraulic cement
Part (weight part: same below), molten material (composition: SiO 2 40
%, Al 2 O 3 5%, CaO 5%, Na 2 O 5%, K 2
O2%, PbO25%, B 2 O 3 10%) 10 parts, Fire-stone 50 parts or less of the maximum particle size of 5mm as a heat-resistant aggregate, 20 parts of wollastonite fibers, superplasticizer 0.3 parts 22
Part of water to knead to make a mixture, put this mixture in a mold and centrifuge molding, φ30 cm × length 1 m × thickness 2 c
A cylindrical test piece of m was formed. The test piece was steam-cured in a humid air at 60 ° C. for 3 hours, then dried at 110 ° C. for 24 hours, and then heat-treated at 900 ° C. for 60 minutes. The ceramic concrete thus obtained has a beautiful ceramic surface and a compressive strength of 500 kgf / cm 2 ,
Shrinkage due to heat treatment at 00 ° C was only 0.3%. Example 2 Centrifugal molding, curing, and drying were carried out under the same conditions as in Example 1, and the surface of the obtained specimen was further sprayed with a glaze slurry (glaze: carboxymethyl cellulose: water (weight ratio) = 100: 0. 3:60) at a thickness of 1.0 kg / m 2 , followed by drying at 110 ° C. for 2 hours, further heating, and heat treatment at 900 ° C. for 60 minutes. The ceramic concrete thus obtained had a beautiful glazed surface where surface peeling did not easily occur, had a compressive strength of 520 kgf / cm 2 , and had a shrinkage of only 0.3% due to heat treatment at 900 ° C.
【００１５】[0015]
【発明の効果】本発明によれば、極めて少ない溶融材使
用量で、厚手でかつ大型であり、外周面から内周面にわ
たり連続的に変化した組織を有するセラミックコンクリ
ート、かつ、表面施釉層の剥離し難いセラミックコンク
リートを経済的かつ容易に製造することができる。EFFECTS OF THE INVENTION According to the present invention, a ceramic concrete having an extremely small amount of molten material, a thick and large size, and a structure continuously changing from the outer peripheral surface to the inner peripheral surface, and a surface glazed layer It is possible to economically and easily manufacture ceramic concrete that is difficult to peel off.
【図１】本発明方法の遠心成形工程で使用する遠心成形
機の横断面図である。FIG. 1 is a cross-sectional view of a centrifugal molding machine used in the centrifugal molding step of the method of the present invention.
１ 成形枠 ２ 平輪 ３ 支柱 ４ 鉄筋かご ５ 中空室 1 Forming frame 2 Flat wheel 3 Strut 4 Reinforcing cage 5 Hollow chamber
───────────────────────────────────────────────────── フロントページの続き (72)発明者 安 伸二 神奈川県茅ヶ崎市茅ヶ崎511番地 茅ヶ崎 グリーンハイツ１−203 (72)発明者 杉本 賢司 神奈川県茅ヶ崎市高田３丁目３番10号 (72)発明者 ウィグナラージャ・シバクマラン 神奈川県横浜市旭区白根２丁目35番６号 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Shinji Yasu 511 Chigasaki, Chigasaki City, Kanagawa Prefecture 1-203 Chigasaki Green Heights (72) Inventor Kenji Sugimoto 3-3-10 Takada, Chigasaki City, Kanagawa Prefecture (72) Inventor Wignaraja Shivakumaran 2-35 Shirane, Asahi-ku, Yokohama-shi, Kanagawa
Claims (2)
トナイト繊維、溶融材などの原料を水と共に混合し、得
られた混合物を遠心成形して比重の大きい成分を成形品
の外周面に移行させ、この成形品を養生、乾燥した後、
加熱処理することを特徴とするセラミックコンクリート
の製造方法。1. A raw material such as hydraulic cement, heat-resistant aggregate, wollastonite fiber, and a molten material is mixed with water, and the resulting mixture is centrifugally molded to give a component having a large specific gravity to the outer peripheral surface of the molded product. After transferring, curing and drying this molded product,
A method for producing a ceramic concrete, which comprises heat treatment.
トナイト繊維、溶融材などの原料を水と共に混合し、得
られた混合物を遠心成形して比重の大きい成分を成形品
の外周面に移行させ、この成形品を養生、乾燥した後、
この成形品の外周面に更に釉薬などを塗布した後、加熱
処理することを特徴とするセラミックコンクリートの製
造方法。2. A raw material such as hydraulic cement, heat-resistant aggregate, wollastonite fiber, and molten material is mixed with water, and the resulting mixture is centrifugally molded to give a component having a large specific gravity to the outer peripheral surface of the molded product. After transferring, curing and drying this molded product,
A method for producing a ceramic concrete, characterized by further applying a glaze or the like to the outer peripheral surface of this molded product and then subjecting it to heat treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4200121A JPH0623732A (en) | 1992-07-06 | 1992-07-06 | Production of ceramic concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4200121A JPH0623732A (en) | 1992-07-06 | 1992-07-06 | Production of ceramic concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0623732A true JPH0623732A (en) | 1994-02-01 |
Family
ID=16419177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4200121A Pending JPH0623732A (en) | 1992-07-06 | 1992-07-06 | Production of ceramic concrete |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0623732A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08259359A (en) * | 1995-03-28 | 1996-10-08 | Natl House Ind Co Ltd | Production of glazed cement product |
-
1992
- 1992-07-06 JP JP4200121A patent/JPH0623732A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08259359A (en) * | 1995-03-28 | 1996-10-08 | Natl House Ind Co Ltd | Production of glazed cement product |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR0153074B1 (en) | Production of platy building and decorative material resembling natural stone and material obtained thereby | |
| KR910003251B1 (en) | Frit for tile glaze | |
| CN109704721B (en) | Preparation method of ion exchange reinforced prestressed vitrified brick and ceramic product thereof | |
| JPH0623732A (en) | Production of ceramic concrete | |
| US2813305A (en) | Method of vitreous coating nonmetallic articles | |
| RU74384U1 (en) | EMPTY OR POROUS GRANULATED FILLER FOR CONCRETE | |
| RU2440318C1 (en) | Method of making ceramic items | |
| WO1999043628A1 (en) | Ceramic body for sanitary earthenware and process for producing the same | |
| JPH0624875A (en) | Sanitary ware using cement composition and production thereof | |
| CN1281788A (en) | Ceramic-nucleated glass gradient composite plate material and its production process | |
| JP3491991B2 (en) | Manufacturing method of cement-based fired building materials | |
| SU948530A1 (en) | Method of producing shell moulds | |
| JPH0920578A (en) | Ceramic panel and its production | |
| JPH0624876A (en) | Production of terracotta | |
| CN117735968A (en) | High-strength ceramic tile with controllable strength and preparation method thereof | |
| JPS6152116B2 (en) | ||
| JPS61281056A (en) | Manufacture of cement product | |
| JP2802242B2 (en) | Manufacturing method of glazed cement products | |
| JPS6313951B2 (en) | ||
| JP3203390B2 (en) | Cement composition, heat-resistant member, and method for producing the heat-resistant member | |
| JP2629116B2 (en) | Manufacturing method of glazed cement products | |
| JPH05262579A (en) | Glazed cement mortar product and its production | |
| JP2633065B2 (en) | Glazing method | |
| RU2072970C1 (en) | Method of manufacturing decorative and facing articles | |
| JP2622018B2 (en) | Manufacturing method of glazed cement products |