JP3486363B2 - Molded body and molding method thereof - Google Patents

Molded body and molding method thereof

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Publication number
JP3486363B2
JP3486363B2 JP04681699A JP4681699A JP3486363B2 JP 3486363 B2 JP3486363 B2 JP 3486363B2 JP 04681699 A JP04681699 A JP 04681699A JP 4681699 A JP4681699 A JP 4681699A JP 3486363 B2 JP3486363 B2 JP 3486363B2
Authority
JP
Japan
Prior art keywords
molding
pressure
molded
inorganic
molded body
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
Application number
JP04681699A
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Japanese (ja)
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JP2000238021A (en
Inventor
信義 行平
修一 高田
Original Assignee
田川産業株式会社
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Application filed by 田川産業株式会社 filed Critical 田川産業株式会社
Priority to JP04681699A priority Critical patent/JP3486363B2/en
Publication of JP2000238021A publication Critical patent/JP2000238021A/en
Application granted granted Critical
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B15/00Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0005Details of, or accessories for, presses; Auxiliary measures in connection with pressing for briquetting presses
    • B30B15/0017Deairing means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、成形体及びその成
形方法に関するものである。
TECHNICAL FIELD The present invention relates to a molded body and a molding method thereof.

【0002】[0002]

【従来の技術】従来より、建造物の内外壁、床、塀、歩
道の縁石等に成形体が広く使用されており、かかる成形
体としては、タイル、煉瓦、各種石材、セメント製品等
がある。
2. Description of the Related Art Conventionally, molded bodies have been widely used for the inner and outer walls of buildings, floors, fences, curbs on sidewalks, etc. Examples of such molded bodies include tiles, bricks, various stone materials, and cement products. .

【0003】これらのうち、タイル、煉瓦、セメント製
品は、それぞれの原材料に水を加えてスラリー状態にし
たものを低圧で成形した後、所定期間養生したものであ
り、タイル、煉瓦については、更に、焼成又はオートク
レーブ処理を行ってセラミック化したものである。
Among these, tiles, bricks, and cement products are those obtained by adding water to each raw material to make a slurry state, molding the mixture at low pressure, and then curing it for a predetermined period. The ceramic is made by firing or autoclaving.

【0004】また、石材は、天然に存在する原石から切
り出した後、切削加工したものである。
Further, the stone material is obtained by cutting out from a naturally occurring rough stone and then cutting it.

【0005】[0005]

【発明が解決しようとする課題】ところが、上記従来の
タイル、煉瓦、各種石材、セメント製品にあっては、解
決すべき以下の課題が残されていた。
However, the above-mentioned conventional tiles, bricks, various stone materials, and cement products still have the following problems to be solved.

【0006】すなわち、タイル、煉瓦、セメント製品
は、原材料に水を加えてスラリー状態にした後に加工し
なければならず、しかも、タイル、煉瓦にあっては、更
に焼成又はオートクレーブ処理を行う必要があり、製造
工程が煩雑で、製造に多大な労力や時間を要していた。
That is, tiles, bricks, and cement products must be processed after adding water to the raw materials to make them into a slurry state, and further, the tiles and bricks need to be further fired or autoclaved. However, the manufacturing process is complicated, and a large amount of labor and time are required for manufacturing.

【0007】また、タイル、煉瓦、セメント製品は、原
材料の特性や、製造上の特性によって、焼き縮みや収縮
・膨張等が生じてしまい、寸法精度の良好なものを安定
して大量に生産することが困難であった。
Further, tiles, bricks, and cement products are subject to shrinkage, shrinkage, expansion, etc. depending on the characteristics of the raw materials and the characteristics of production, and stably produce large quantities of those with good dimensional accuracy. Was difficult.

【0008】更に、タイル、煉瓦、セメント製品の原材
料に消臭・抗菌等の機能を有する機能性粉体や繊維を添
加して製造を行うと、イオン化したアルカリや加熱溶融
によって機能性粉体や繊維の機能が失われてしまい、所
望の機能を有する成形体を製造することができなかっ
た。
[0008] Furthermore, when a functional powder or fiber having a function of deodorizing and antibacterial is added to the raw material of tiles, bricks, and cement products for production, functional powder or The function of the fiber was lost, and it was not possible to manufacture a molded product having a desired function.

【0009】しかも、タイル、煉瓦、セメント製品は、
表面に切削、研削、研磨等の加工を施すと、表面が加工
前と加工後で異質のものになってしまうといった不具合
があった。
Moreover, tiles, bricks and cement products are
When the surface is subjected to processing such as cutting, grinding and polishing, there is a problem that the surface becomes different before and after processing.

【0010】また、石材は、天然に存在する原石を切り
出して切削加工する必要があり、産地毎に品質が異な
り、同一の製品を大量に生産するには不向きであった。
Further, as for stone materials, it is necessary to cut out and cut naturally occurring rough stones, and the quality is different depending on the place of origin, which is unsuitable for mass production of the same product.

【0011】[0011]

【課題を解決するための手段】本発明は、上記従来の成
形体の欠点を解消し、寸法精度が良好で、従来のタイ
ル、煉瓦、セメント製品、石材以上の物理強度を持つ成
形体を得ることを目的とするものであり、本発明では、
粉末状の無機質結合材と粉末状の無機質骨材とを混合し
て混合粉体とし、同混合粉体を略真空中において加圧成
形することとした。
DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned drawbacks of conventional molded products, obtains a molded product having good dimensional accuracy and physical strength superior to that of conventional tiles, bricks, cement products and stone materials. It is intended that, in the present invention,
The powdery inorganic binder and the powdery inorganic aggregate were mixed to form a mixed powder, and the mixed powder was pressure-molded in a substantially vacuum.

【0012】また、無機質結合材として、消石灰、ドロ
マイト、石膏、水酸化マグネシウムのいずれか一種又は
二種以上の混合物を用いることとした。
Further, as the inorganic binder, any one of slaked lime, dolomite, gypsum and magnesium hydroxide or a mixture of two or more thereof is used.

【0013】特に、加圧成形時の圧力は、100MPa以
上とした。
Particularly, the pressure at the time of pressure molding is 100 MPa or more.

【0014】[0014]

【発明の実施の形態】本発明に係る成形体は、粉末状の
無機質結合材と粉末状の無機質骨材とを混合して混合粉
体とし、同混合粉体を略真空中において加圧成形したも
のである。
BEST MODE FOR CARRYING OUT THE INVENTION A molded article according to the present invention is a powder mixture of a powdery inorganic binder and a powdered inorganic aggregate, and the mixed powder is pressure-molded in a substantially vacuum state. It was done.

【0015】無機質結合材としては、消石灰、ドロマイ
ト、石膏、水酸化マグネシウム等のように、空気中で容
易に炭酸ガスや水と反応して硬化体となる材料を用いて
いる。尚、無機質結合材としては、消石灰、ドロマイ
ト、石膏、水酸化マグネシウムのいずれか一種を単独で
用いてもよく、また、二種以上の混合物として用いても
よい。
As the inorganic binder, a material such as slaked lime, dolomite, gypsum, magnesium hydroxide, etc. which easily reacts with carbon dioxide gas or water in the air to form a hardened body is used. As the inorganic binder, one of slaked lime, dolomite, gypsum and magnesium hydroxide may be used alone, or a mixture of two or more may be used.

【0016】無機質骨材としては、炭酸カルシウム、珪
砂、スラグ、フライアッシュ、焼却灰、汚泥、酸化鉄粉
等を用いている。
As the inorganic aggregate, calcium carbonate, silica sand, slag, fly ash, incinerated ash, sludge, iron oxide powder and the like are used.

【0017】これらの無機質結合材と無機質骨材のほか
に、更に、シリカゲル・ゼオライト・活性炭・珪藻土等
の無機多孔質材料、カオリン・ベントナイト・セピオラ
イト等の粘土、酸化鉄等の無機顔料、酸化チタン・酸化
亜鉛等の機能性無機触媒、抗菌抗黴材、クリソタイル・
ワラストナイト・ガラス繊維等の無機繊維、パルプ・麻
スサ等の天然繊維、ビニロン繊維・ポリエチレン繊維等
の合成繊維を加えてもよい。
In addition to these inorganic binders and inorganic aggregates, inorganic porous materials such as silica gel, zeolite, activated carbon, diatomaceous earth, clays such as kaolin, bentonite and sepiolite, inorganic pigments such as iron oxide and titanium oxide.・ Functional inorganic catalysts such as zinc oxide, antibacterial and antifungal materials, chrysotile
Inorganic fibers such as wollastonite and glass fibers, natural fibers such as pulp and hemp grass, and synthetic fibers such as vinylon fibers and polyethylene fibers may be added.

【0018】混合比率は、無機質結合材を5〜100 重量
部、無機質骨材を0〜95重量部としている。また、無機
質多孔質材料、粘土、無機顔料、機能性無機触媒、抗菌
抗黴材、無機繊維等を0 .1 〜50重量部混合してもよ
い。
The mixing ratio is 5 to 100 parts by weight of the inorganic binder and 0 to 95 parts by weight of the inorganic aggregate. In addition, inorganic porous materials, clay, inorganic pigments, functional inorganic catalysts, antibacterial and antifungal materials, inorganic fibers, etc. 1 to 50 parts by weight may be mixed.

【0019】加圧成形には、図1に示す真空成形機を用
いている。同図において、真空成形機Aは、機枠1の下
部に下金型2を配設する一方、機枠1の上部に油圧式の
昇降シリンダー3をシリンダーロッド4の先端を下方に
向けて配設し、同シリンダーロッド4の先端部に上金型
5を連設しており、昇降シリンダー3の作用によって上
金型5を下金型2の凹部6に向けて昇降作動するように
している。図中、7は下金型2の凹部6に連通連結した
真空ポンプ、8は油圧ポンプ、9は油圧操作盤である。
A vacuum forming machine shown in FIG. 1 is used for the pressure forming. In the figure, in the vacuum forming machine A, a lower mold 2 is arranged in the lower part of the machine frame 1, while a hydraulic lifting cylinder 3 is arranged in the upper part of the machine frame 1 with the tip of a cylinder rod 4 facing downward. The upper mold 5 is connected to the tip of the cylinder rod 4 so that the upper mold 5 is moved up and down toward the recess 6 of the lower mold 2 by the action of the lifting cylinder 3. . In the figure, 7 is a vacuum pump that is connected to the recess 6 of the lower mold 2, 8 is a hydraulic pump, and 9 is a hydraulic operation panel.

【0020】まず、下金型2の凹部6に、無機質結合材
と無機質骨材、更には、必要に応じて無機質多孔質材料
や粘土等の混合粉体を投入する。その際に、混合粉体を
加湿又は乾燥して、混合粉体の含水率を0〜10%に調整
してもよい。
First, an inorganic binder and an inorganic aggregate, and if necessary, a mixed powder of an inorganic porous material, clay, etc., is put into the recess 6 of the lower mold 2. At that time, the mixed powder may be humidified or dried to adjust the water content of the mixed powder to 0 to 10%.

【0021】次に、真空ポンプ7の作用によって、下金
型2の凹部6と上金型5とで形成する加圧空間を−80
KPa〜−100KPaの略真空状態として成形機Aで混合
粉体を板状又は塊状に加圧成形する。尚、加圧空間は、
−94KPa〜−100KPaの略真空状態とするのが好ま
しい。
Next, by the action of the vacuum pump 7, the pressure space formed by the recess 6 of the lower mold 2 and the upper mold 5 is set to -80.
The mixed powder is pressure-molded into a plate shape or a lump shape by the molding machine A in a substantially vacuum state of KPa to −100 KPa. The pressure space is
It is preferable to make a substantially vacuum state of −94 KPa to −100 KPa.

【0022】加圧成形時に混合粉体が受ける成形圧力
は、90MPa以上、好ましくは100MPa〜300MPa
となるようにしている。
The molding pressure applied to the mixed powder during the pressure molding is 90 MPa or more, preferably 100 MPa to 300 MPa.
I am trying to become.

【0023】このように、略真空中において高圧で成形
することにより、成形体の内部に殆ど空気が残留してお
らず、物理強度が高く、寸法精度の良好な成形体を成形
することができる。
As described above, by molding at a high pressure in a substantially vacuum, almost no air remains inside the molded body, and a molded body having high physical strength and good dimensional accuracy can be molded. .

【0024】しかも、加圧成形後に、成形体を空気中に
放置したり又は炭酸ガス雰囲気中において養生した場合
には、無機質結合材として用いた消石灰等が、 Ca(OH)2+CO2 → Ca CO3 +H2 O のように、炭酸ガスを吸収して炭酸カルシウムとなり、
これによって、成形体の物理強度をさらに増大させるこ
とができる。
Moreover, when the molded body is left in the air or cured in a carbon dioxide gas atmosphere after pressure molding, the slaked lime or the like used as the inorganic binder is Ca (OH) 2 + CO 2 → Ca. Like CO 3 + H 2 O, it absorbs carbon dioxide and becomes calcium carbonate,
Thereby, the physical strength of the molded body can be further increased.

【0025】また、煉瓦やタイル等と異なり、焼成やオ
ートクレーブ処理等の熱処理を施していないため、混合
粉体に無機多孔質材料や粘土、機能性無機触媒、抗菌抗
黴材を添加しても、これら無機多孔質材料や粘土等が熱
の影響を受けることはなく、従って、無機多孔質材料や
粘土等のそれぞれの材料が有する特性を保持した成形体
を成形することができる。
Further, unlike bricks and tiles, it is not subjected to heat treatment such as firing or autoclave treatment, so that it is possible to add an inorganic porous material, clay, a functional inorganic catalyst, or an antibacterial / antifungal material to the mixed powder. The inorganic porous material, clay, etc. are not affected by heat. Therefore, it is possible to mold a molded body that retains the characteristics of the respective materials such as the inorganic porous material, clay, etc.

【0026】しかも、熱処理を施していないため、窯変
による変色が生じることもなく、加圧成形前の混合粉体
の色と同色の成形体を再現よく多量に成形することがで
きる。
Moreover, since heat treatment is not performed, discoloration due to kiln change does not occur, and it is possible to reproducibly produce a large amount of compacts having the same color as the color of the mixed powder before pressure compaction.

【0027】更には、セメント製品と異なり、原材料を
スラリー状態にしていないため、白華もなく、混合粉体
に5重量部以下の顔料を混入するだけで十分に発色させ
ることができる。
Further, unlike the cement product, since the raw material is not in a slurry state, there is no white sinter, and the color can be sufficiently developed by mixing 5 parts by weight or less of the pigment in the mixed powder.

【0028】また、混合粉体に繊維を混入することによ
って、曲げ強度を増強することもできる。
Bending strength can be enhanced by mixing fibers in the mixed powder.

【0029】[0029]

【実施例】本発明を実施して成形体を成形し、同成形体
の圧縮強度について測定した。以下にその試験結果を示
す。
EXAMPLE A molded body was molded by carrying out the present invention, and the compression strength of the molded body was measured. The test results are shown below.

【0030】( 試験例1)下記の混合粉体について、真
空成形機を用いて厚み20mmの成形体を成形圧力を変えて
成形し(No. 1〜No. 7)、各成形体の吸水率、見かけ
密度、圧縮強度の測定を行った。 消石灰
100重量部 炭酸カルシウム 100重量部 含水率 3% 各成形体の吸水率、見かけ密度、圧縮強度の測定結果を
表1に示す。また、成形圧力と吸水率、見かけ密度、圧
縮強度との関係を図2〜図4に示す。
(Test Example 1) With respect to the following mixed powder, a molded product having a thickness of 20 mm was molded using a vacuum molding machine while changing the molding pressure (No. 1 to No. 7), and the water absorption of each molded product was measured. The apparent density and compressive strength were measured. Slaked lime
100 parts by weight Calcium carbonate 100 parts by weight Water content 3% Table 1 shows the measurement results of the water absorption rate, the apparent density and the compression strength of each molded product. 2 to 4 show the relationship between the molding pressure, the water absorption rate, the apparent density, and the compression strength.

【0031】[0031]

【表1】 [Table 1]

【0032】表1及び図2〜図4より明らかなように、
成形圧力を約90MPa以上とすることにより、吸水率が
減少するとともに見かけ密度が増大し、圧縮強度が顕著
に増大している。
As is clear from Table 1 and FIGS.
By setting the molding pressure to about 90 MPa or more, the water absorption rate decreases, the apparent density increases, and the compressive strength remarkably increases.

【0033】すなわち、混合粉体の加圧成形において
は、約90MPa 以上の成形圧力で加圧成形することによ
り、従来より行われていた低圧(数MPa )で加圧成形す
る場合に比べ、成形体の圧縮強度を顕著に増大させるこ
とができる。
That is, in the pressure molding of the mixed powder, the pressure molding is carried out at a molding pressure of about 90 MPa or more, as compared with the conventional pressure molding at a low pressure (several MPa). The compressive strength of the body can be significantly increased.

【0034】尚、消石灰以外の前述した無機質結合材
や、炭酸カルシウム以外の前述した無機質骨材を用いた
場合であっても、同様の結果が得られた。
Similar results were obtained even when the above-mentioned inorganic binder other than slaked lime and the above-mentioned inorganic aggregate other than calcium carbonate were used.

【0035】( 試験例2) 無機質結合材として消石灰を
用い、消石灰と無機質骨材や繊維等との混合比率を変え
て、真空成形機を用いて成形圧力150MPaで厚み20mmの成
形体を成形し(No.8〜No16)、各成形体の吸水率、見か
け密度、圧縮強度の測定を行った。
Test Example 2 Slaked lime was used as the inorganic binder, the mixing ratio of the slaked lime and the inorganic aggregate, fibers, etc. was changed, and a 20 mm thick molded body was molded at a molding pressure of 150 MPa using a vacuum molding machine. (No. 8 to No16), water absorption, apparent density, and compressive strength of each molded product were measured.

【0036】各成形体の吸水率、見かけ密度、圧縮強度
の測定結果を表2に示す。また、対比のために、煉瓦と
石材の物性値(JIS規格) を表3に示す。
Table 2 shows the measurement results of water absorption, apparent density and compressive strength of each molded product. Table 3 shows the physical property values (JIS standard) of brick and stone for comparison.

【0037】[0037]

【表2】 [Table 2]

【0038】[0038]

【表3】 [Table 3]

【0039】表2と表3とを比較することにより明らか
なように、すべての成形体において煉瓦2 種以上の圧縮
強度を有し、特に、成形体No.11 〜No.13 にあっては、
硬石以上の圧縮強度を有することがわかる。
As is clear from a comparison between Tables 2 and 3, all the moldings have a compressive strength of two or more types of bricks, and particularly the moldings No. 11 to No. 13 ,
It can be seen that it has a compressive strength higher than that of hard stone.

【0040】無機質結合材として炭酸カルシウムを用い
た場合には、炭酸カルシウムが充填性のよい微粉末であ
り又弱いながらも圧着する性質があるため、消石灰との
圧着が十分に行われ、圧縮強度が増大すると考えられ
る。
When calcium carbonate is used as the inorganic binder, calcium carbonate is a fine powder having a good filling property and has a property of being pressure-bonded even though it is weak. Is expected to increase.

【0041】また、無機繊維の一種であるワラストナイ
トを加えると、衝撃抵抗性や破壊強度が大きいといった
ワラストナイトの有する性質が発現され、成形体の圧縮
強度が増大すると考えられる。
It is considered that when wollastonite, which is a kind of inorganic fiber, is added, the properties of wollastonite such as high impact resistance and high breaking strength are exhibited, and the compression strength of the molded article is increased.

【0042】また、無機質骨材として粗粒の珪砂を用い
た場合には、珪砂自身の強度によって成形圧力を珪砂自
体が受け止めることとなり、成形圧力が消石灰に十分に
伝わらず、消石灰と珪砂との圧着が不十分なものとなり
圧縮強度の低下を招いているものと思われる。しかしな
がら、この場合であっても、煉瓦と同等以上の圧縮強度
を有する成形体が得られている。
When coarse-grained silica sand is used as the inorganic aggregate, the silica sand itself receives the molding pressure due to the strength of the silica sand itself, and the molding pressure is not sufficiently transmitted to the slaked lime. It seems that the pressure bonding becomes insufficient and the compressive strength is lowered. However, even in this case, a molded body having a compressive strength equal to or higher than that of bricks is obtained.

【0043】[0043]

【発明の効果】本発明は、以上説明したような形態で実
施され、以下に記載されるような効果を奏する。
The present invention is carried out in the form as described above, and has the following effects.

【0044】すなわち、本発明では、略真空中において
高圧で成形しているために、成形体の内部に殆ど空気が
残留することがなく、物理強度が高く、寸法精度の良好
な成形体を成形することができ、従って、成形体を寸法
安定性のよい建材として利用することができる。
That is, in the present invention, since the molding is carried out at a high pressure in a substantially vacuum, almost no air remains inside the molding, and the molding has high physical strength and good dimensional accuracy. Therefore, the molded product can be used as a building material having good dimensional stability.

【0045】また、煉瓦やタイル等と異なり、焼成やオ
ートクレーブ処理等の熱処理を施していないために、混
合粉体に無機多孔質材料や粘土、機能性無機触媒、抗菌
抗黴材を添加しても、これら無機多孔質材料や粘土等が
熱の影響を受けることはなく、無機多孔質材料や粘土等
のそれぞれの材料が有する特性を保持した成形体を成形
することができ、従って、それぞれの材料が有する特徴
を具備した建材を得ることができる。
Further, unlike bricks and tiles, it is not subjected to heat treatment such as firing or autoclave treatment. Therefore, an inorganic porous material, clay, a functional inorganic catalyst, or an antibacterial / antifungal agent is added to the mixed powder. Also, these inorganic porous materials, clay, etc. are not affected by heat, and it is possible to mold a molded body that retains the characteristics of each material such as inorganic porous materials, clay, etc. A building material having the characteristics of the material can be obtained.

【0046】しかも、成形体は、無機質結合材が空気中
の炭酸ガスや水分と反応して自然に硬化する性質を有し
ているため、自然硬化前に成形体表面の切削・研削・研
磨加工が容易に行えるとともに、成形体の表面を切削・
研削・研磨加工しても、成形体の表面が空気中で自然硬
化して、成型体表面の強度を保持することができる。
Moreover, since the molded body has a property that the inorganic binder reacts with carbon dioxide gas and moisture in the air to be naturally hardened, the surface of the molded body is cut, ground, and polished before the natural hardening. Can be performed easily and the surface of the molded product can be cut and
Even after grinding and polishing, the surface of the molded body is naturally hardened in the air, and the strength of the molded body surface can be maintained.

【図面の簡単な説明】[Brief description of drawings]

【図1】真空成形機を示す説明図。FIG. 1 is an explanatory view showing a vacuum forming machine.

【図2】成形圧力と吸水率との関係を示すグラフ。FIG. 2 is a graph showing the relationship between molding pressure and water absorption.

【図3】成形圧力と見かけ密度との関係を示すグラフ。FIG. 3 is a graph showing the relationship between molding pressure and apparent density.

【図4】成形圧力と圧縮強度との関係を示すグラフ。FIG. 4 is a graph showing the relationship between molding pressure and compressive strength.

【符号の説明】[Explanation of symbols]

A 真空成形機 1 機枠 2 下金型 3 昇降シリンダー 4 シリンダーロッド 5 上金型 6 凹部 7 真空ポンプ 8 油圧ポンプ 9 油圧操作盤 A vacuum forming machine 1 machine frame 2 Lower mold 3 lifting cylinder 4 cylinder rod 5 Upper mold 6 recess 7 vacuum pump 8 hydraulic pump 9 Hydraulic control panel

───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平10−212152(JP,A) 特開 昭59−11208(JP,A)   ─────────────────────────────────────────────────── ─── Continued front page       (56) Reference JP-A-10-212152 (JP, A)                 JP-A-59-11208 (JP, A)

Claims (3)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 粉末状の無機質結合材と粉末状の無機質
骨材とを混合して混合粉体とし、同混合粉体を略真空中
において100MPa以上の圧力で加圧成形することを特
徴とする成形体の成形方法。
1. A powdery inorganic binder and a powdery inorganic aggregate are mixed to form a mixed powder, and the mixed powder is pressure-molded in a substantially vacuum at a pressure of 100 MPa or more. A method for molding a molded body.
【請求項2】 無機質結合材は、消石灰、ドロマイト、
石膏、水酸化マグネシウムのいずれか一種又は二種以上
の混合物であることを特徴とする請求項1記載の成形体
の成形方法。
2. The inorganic binder is slaked lime, dolomite,
The method for molding a molded article according to claim 1, which is one of gypsum and magnesium hydroxide or a mixture of two or more thereof.
【請求項3】 請求項1又は請求項2に記載の成形方法
により成形したことを特徴とする成形体。
3. A molded product molded by the molding method according to claim 1 or 2.
JP04681699A 1999-02-24 1999-02-24 Molded body and molding method thereof Expired - Lifetime JP3486363B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP04681699A JP3486363B2 (en) 1999-02-24 1999-02-24 Molded body and molding method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP04681699A JP3486363B2 (en) 1999-02-24 1999-02-24 Molded body and molding method thereof

Publications (2)

Publication Number Publication Date
JP2000238021A JP2000238021A (en) 2000-09-05
JP3486363B2 true JP3486363B2 (en) 2004-01-13

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Country Link
JP (1) JP3486363B2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003002728A (en) * 2001-06-20 2003-01-08 Yamase:Kk Porous clay wall material and its manufacturing method
JP5094625B2 (en) * 2008-08-07 2012-12-12 三協興産株式会社 Recycling of asbestos-containing materials
JP6761981B2 (en) * 2015-04-03 2020-09-30 国立大学法人 名古屋工業大学 High mechanical strength plaster molded product and its manufacturing method
CN104842237A (en) * 2015-06-09 2015-08-19 朱德金 Conical ball mill pressing mold box

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