JPH0532337B2 - - Google Patents
Info
- Publication number
- JPH0532337B2 JPH0532337B2 JP59154560A JP15456084A JPH0532337B2 JP H0532337 B2 JPH0532337 B2 JP H0532337B2 JP 59154560 A JP59154560 A JP 59154560A JP 15456084 A JP15456084 A JP 15456084A JP H0532337 B2 JPH0532337 B2 JP H0532337B2
- Authority
- JP
- Japan
- Prior art keywords
- microcapsules
- inorganic
- curing
- inorganic material
- board
- 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
Landscapes
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
Description
【発明の詳細な説明】
〔技術分野〕
本発明は建材などに用いられるセメントを主材
とした無機質板の製造法にある。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a method for manufacturing an inorganic board mainly made of cement and used as a building material.
従来より、水硬性物質とパルスなどの繊維を乾
式混合する際に水を加え、この含水無機材料を成
形して無機質板が製造されているが、水硬性物質
と繊維との比重差が大きいため、繊維が均一に分
散しなく所定の水を添加するといわゆる「ダマ」
が発生するため水の供給量が限られていまい、ま
た水が内部まで浸透せず硬化むらが発生して建材
としては致命的な強度差の発現する原因となつて
いた。このため板厚の厚いものを成形する場合は
薄いものを何枚か積層しなければならなく、それ
だけ装置が複雑になり、しかも積層面での界面剥
離が発生しがちで性能面で問題があつた。
Conventionally, inorganic boards have been manufactured by adding water when dry-mixing hydraulic substances and fibers such as pulses, and molding this hydrated inorganic material. However, due to the large difference in specific gravity between the hydraulic substances and the fibers, , if the fibers are not dispersed uniformly and a certain amount of water is added, so-called "clumps"
As a result, the amount of water supplied was limited, and the water did not penetrate into the interior, causing uneven curing, which caused a critical difference in strength as a building material. For this reason, when molding thick plates, it is necessary to laminate several thin plates, which increases the complexity of the equipment, and also tends to cause interfacial delamination on the laminated surfaces, causing problems in terms of performance. Ta.
本発明は上述した背景技術に鑑みてなされたも
ので、その目的とするところは、水硬性物質と繊
維の乾式混合物に「ダマ」など発生させずに所定
量の水を均一に供給でき、硬化むらなど生じず、
板厚に関係なく均一な強度の無機質板を簡単に得
ることができる無機質板の製造法を提供するにあ
る。
The present invention has been made in view of the above-mentioned background art, and its purpose is to be able to uniformly supply a predetermined amount of water to a dry mixture of a hydraulic substance and fibers without causing lumps, and to cure the mixture. No unevenness occurs,
To provide a method for manufacturing an inorganic board by which an inorganic board having uniform strength can be easily obtained regardless of the board thickness.
以下、本発明の一実施例に係る無機質板の製造
法を図面に基づいて説明する。
EMBODIMENT OF THE INVENTION Hereinafter, the manufacturing method of the inorganic board based on one Example of this invention is demonstrated based on drawing.
本発明で用いる水硬性物質１としてはポルトラ
ンドセメント、高炉セメント、シリカセメント、
フライアツシユセメント、高炉スラグなど各種の
ものを採用できる。繊維２は石綿、岩綿、ガラス
綿、パルプ、合成繊維、木くず、わら等を用いる
事ができる。更に芯材に水をもつたマイクロカプ
セルを準備する。そして、この水硬性物質１と繊
維２とを乾式混合して混合物３をつくる。さらに
この混合物３に硬化に必要な水分を含有したマイ
クロカプセル４を分散せしめた無機質材料５をつ
くる。このときマイクロカプセル４は皮膜材とし
てポリエチレン、パラフイン、ポリスチレン等を
オリフイス法、界面重合法等適当な製法により30
〜300μのサイズにつくる。 Hydraulic substances 1 used in the present invention include portland cement, blast furnace cement, silica cement,
Various materials such as fly ash cement and blast furnace slag can be used. As the fiber 2, asbestos, rock wool, glass wool, pulp, synthetic fiber, wood chips, straw, etc. can be used. Furthermore, microcapsules having water in their core material are prepared. Then, a mixture 3 is prepared by dry mixing this hydraulic substance 1 and fibers 2. Furthermore, an inorganic material 5 is prepared by dispersing microcapsules 4 containing moisture necessary for curing in this mixture 3. At this time, the microcapsules 4 are made by using polyethylene, paraffin, polystyrene, etc. as a coating material by an appropriate manufacturing method such as orifice method or interfacial polymerization method.
Make it to a size of ~300μ.
尚、この無機質材料５は混合機６により乾式混
合分散させてつくるが必要に応じてパーライトな
どの骨材、セメント分散材、珪藻土のようなセメ
ント混和材を流加してもよい。 The inorganic material 5 is produced by dry mixing and dispersing using a mixer 6, but aggregates such as perlite, cement dispersants, and cement admixtures such as diatomaceous earth may be added as necessary.
この混合分散された無機質材料５はベルトコン
ベア７上に供給され、このベルトコンベア７上方
に配設されたスチールコンベア８で予備成形され
る。その後、予備成形された無機質材料５はプレ
ス機９によつて表面凹凸模様付行ないなが30〜60
Kg／cm2の圧力で加圧されその後で養生硬化して無
機質板１０を得る。このときプレス機９でのプレ
ス成形時に無機質材料５中のマイクロカプセル４
は圧壊されマイクロカプセル４内の水分は水硬性
物質の中に均一吸収される。又、このプレス機９
のプレス圧力を30〜60Kg／cm2に設定した場合には
マイクロカプセル４は15〜50Kg／cm2で皮膜材が圧
壊されるように設定すれば良い。尚、マイクロカ
プセル４の粒径は特にこだわらないが300μ以下
の方が無機質材料中に均一分散されるので硬化む
らが少なくなり強度発現や寸法変化率の低減、耐
凍害性の向上にも寄与できる。 The mixed and dispersed inorganic material 5 is supplied onto a belt conveyor 7 and preformed by a steel conveyor 8 disposed above the belt conveyor 7. Thereafter, the preformed inorganic material 5 is given a surface roughness pattern by a press machine 9 with a thickness of 30 to 60 mm.
The inorganic board 10 is obtained by applying pressure at a pressure of Kg/cm 2 and then curing and hardening. At this time, the microcapsules 4 in the inorganic material 5 are
are crushed and the water inside the microcapsules 4 is uniformly absorbed into the hydraulic material. Also, this press machine 9
When the pressing pressure is set to 30 to 60 kg/cm 2 , the microcapsules 4 may be set so that the coating material is crushed at 15 to 50 kg/cm 2 . The particle size of the microcapsules 4 is not particularly important, but if it is 300μ or less, it will be more uniformly dispersed in the inorganic material, resulting in less uneven hardening and contributing to strength development, reduction in dimensional change rate, and improvement in frost damage resistance. .
以上のように、本発明は水硬性物質と繊維を乾
式混合した混合物に硬化に必要な水分を含有した
マイクロカプセルを分散せしめた無機質材料をコ
ンベア上に供給せしめ、しかる後この無機質材料
を加圧成形するとともに、加圧成形時に無機質材
料中のマイクロカプセルを圧壊してマイクロカプ
セル内の水分を水硬性物質の中に吸収せしめ、そ
の後で養生硬化して無機質板を成形するようにし
ているから、水硬性物質と繊維を乾式混合した混
合物にダマ等を発生させることなく水分を含有し
たマイクロカプセルを分散させて所定水量をこの
マイクロカプセルで均一に供給し、加圧成形時の
マイクロカプセルの圧壊によりマイクロカプセル
内の水分を水硬性物質の中に均一に吸収させるこ
とができる。したがつて板厚に関係なく硬化むら
もなく均一な曲げ強度を有する無機質板を得るこ
とができるとともにマイクロカプセルの皮膜物質
も無機質板内に残存されるので養生硬化時にセメ
ントなどのマトリツクスと一体となるために吸水
率の低減、曲げ強度の向上、寸法変化率の低減、
耐凍害性の向上などに効果が発揮される。又、マ
イクロカプセルは混合物と混練すればよいので工
場での取り扱いも簡単になりダマもできることも
なく取り扱いの簡便なものである。
As described above, in the present invention, an inorganic material in which microcapsules containing moisture necessary for curing are dispersed in a dry-mixed mixture of a hydraulic substance and fibers is supplied onto a conveyor, and then this inorganic material is pressurized. At the same time as molding, the microcapsules in the inorganic material are crushed during pressure molding, the moisture inside the microcapsules is absorbed into the hydraulic material, and then the inorganic board is molded by curing and curing. Water-containing microcapsules are dispersed in a dry-mixed mixture of a hydraulic substance and fibers without creating any lumps, and a predetermined amount of water is uniformly supplied with these microcapsules, and the microcapsules are crushed during pressure molding. Water inside the microcapsules can be uniformly absorbed into the hydraulic material. Therefore, it is possible to obtain an inorganic board that has uniform bending strength without uneven hardening regardless of the board thickness, and since the coating material of the microcapsules remains within the inorganic board, it can be integrated with the matrix such as cement during curing and hardening. In order to reduce water absorption, improve bending strength, reduce dimensional change rate,
It is effective in improving frost damage resistance. Furthermore, since microcapsules can be simply kneaded with a mixture, they can be easily handled in a factory and do not form lumps, making them easy to handle.
図は本発明の一実施例に係る無機質板の製造法
に係る概略工程図である。
１……水硬性物質、２……繊維、３……混合
物、４……マイクロカプセル、５……無機質材
料、６……混合機、７……コンベア、９……プレ
ス機、１０……無機質板。
The figure is a schematic process diagram of a method for manufacturing an inorganic board according to an embodiment of the present invention. 1... Hydraulic substance, 2... Fiber, 3... Mixture, 4... Microcapsule, 5... Inorganic material, 6... Mixer, 7... Conveyor, 9... Press machine, 10... Inorganic material Board.
Claims (1)
化に必要な水分を含有したマイクロカプセルを分
散せしめた無機質材料をベルトコンベア上に供給
せしめ、しかる後該無機質材料を加圧成形すると
ともに、加圧成形時に無機質材料中のマイクロカ
プセルを圧壊してマイクロカプセル内の水分を水
硬性物質の中に吸収せしめ、その後で養生硬化し
て無機質板を成形することを特徴とする無機質板
の製造法。1. An inorganic material in which microcapsules containing moisture necessary for curing are dispersed in a mixture obtained by dry mixing a hydraulic substance and fibers is supplied onto a belt conveyor, and the inorganic material is then pressure-molded and pressure-molded. A method for manufacturing an inorganic board, which comprises crushing microcapsules in an inorganic material during molding, absorbing moisture within the microcapsules into a hydraulic substance, and then curing and curing to form an inorganic board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15456084A JPS6131338A (en) | 1984-07-25 | 1984-07-25 | Manufacture of inorganic board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15456084A JPS6131338A (en) | 1984-07-25 | 1984-07-25 | Manufacture of inorganic board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6131338A JPS6131338A (en) | 1986-02-13 |
| JPH0532337B2 true JPH0532337B2 (en) | 1993-05-14 |
Family
ID=15586912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15456084A Granted JPS6131338A (en) | 1984-07-25 | 1984-07-25 | Manufacture of inorganic board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6131338A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63260877A (en) * | 1986-11-05 | 1988-10-27 | 株式会社 日本総合メインテナンス | Manufacture of mortar material |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5014722A (en) * | 1973-06-09 | 1975-02-17 |
-
1984
- 1984-07-25 JP JP15456084A patent/JPS6131338A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6131338A (en) | 1986-02-13 |
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