JPS59131405A - Extrusion molding method for inorganic group building material - Google Patents
Extrusion molding method for inorganic group building materialInfo
- Publication number
- JPS59131405A JPS59131405A JP603783A JP603783A JPS59131405A JP S59131405 A JPS59131405 A JP S59131405A JP 603783 A JP603783 A JP 603783A JP 603783 A JP603783 A JP 603783A JP S59131405 A JPS59131405 A JP S59131405A
- Authority
- JP
- Japan
- Prior art keywords
- inorganic
- extrusion molding
- aggregate
- molding method
- building material
- 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
Landscapes
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は無機質系建材の押出成形方法に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an extrusion molding method for inorganic building materials.
セメント系建材で代表される無機質系建材を押出成形す
ることがあり、その押出圧力は高く、５０ ｋｇ／ｉに
も達することがある。Inorganic building materials such as cement building materials are sometimes extruded, and the extrusion pressure is high, sometimes reaching 50 kg/i.
ところで、無機質系建材においては、軽量化のため、パ
ーライト等の無機質発泡骨材を混入することが公知であ
る。本発明者等はか＼る無機質発泡骨材を混入したセメ
ント系材料を押出法によシ成形することを試みたが、往
々にして押出圧力のために発泡骨材が細かく割れてしま
い押出成形が困難であることを知った。而して、発泡骨
材の割れと押出し困難性との因果関係は、発泡骨材の表
面積が割れのだめに増太し、発泡骨材の吸水性が増大し
、混水セメント原料中の水分がその吸水性の増大分に応
じて吸水されてしまい、その結果、混水セメント原料中
の水分が押出流動性の面から不足することとなるだめで
あると推定できる。By the way, in inorganic building materials, it is known to mix inorganic foamed aggregate such as perlite in order to reduce the weight. The present inventors attempted to mold cement-based materials mixed with inorganic foamed aggregate by extrusion, but the foamed aggregate often broke into small pieces due to the extrusion pressure, resulting in the extrusion molding. I learned that it is difficult. Therefore, the causal relationship between cracks in foamed aggregate and difficulty in extrusion is that the surface area of the foamed aggregate increases to prevent cracking, the water absorption of the foamed aggregate increases, and the moisture in the mixed cement raw material increases. It can be assumed that water is absorbed in proportion to the increase in water absorption, and as a result, water in the water-mixed cement raw material becomes insufficient in terms of extrusion fluidity.
本発明に係る無機質系建材の押出成形方法は、骨材とし
て無機質発泡骨材を使用するにもか＼わらず、容易に押
出成形し得る方法であり、骨材として表面を樹脂でコー
テングせる無機質系軽量骨材を混入した無機質水硬性材
料を押出成形することを特徴とする方法である。The extrusion molding method for inorganic building materials according to the present invention is a method that allows easy extrusion molding even though inorganic foamed aggregate is used as the aggregate. This method is characterized by extrusion molding an inorganic hydraulic material mixed with lightweight aggregate.
本発明において無機質系軽量骨材には、パーライト、シ
ラスバルーン、軽石、バーミキ１．ライト等の無機質発
泡骨材を使用できる。In the present invention, inorganic lightweight aggregates include perlite, shirasu balloon, pumice, vermicelli. Inorganic foamed aggregate such as light can be used.
骨材をコーテングする樹脂には、熱可塑性樹脂例えば、
ポリエチレン、ポリスチレン、ポリ塩化ビニルなどのビ
ニル樹脂、ポリアミドなどの鎖状高分子、酢酸セルロー
ズ、塩化ゴム等の天然高分子誘導体、または熱硬化樹脂
９例えばエポキシ樹脂、フェノール樹脂、尿素樹脂、メ
ラミン樹脂等を使用できる。特に、押出成形体をオート
クレーブで養生する場合は、コーテング樹脂の溶融によ
るマトリックスと骨材との接着性向上を図るべく、熱可
塑性樹脂を使用することが望ましい。The resin used to coat the aggregate includes thermoplastic resins such as
Vinyl resins such as polyethylene, polystyrene, and polyvinyl chloride, chain polymers such as polyamide, natural polymer derivatives such as cellulose acetate and chlorinated rubber, or thermosetting resins 9 For example, epoxy resins, phenol resins, urea resins, melamine resins, etc. can be used. In particular, when the extruded body is cured in an autoclave, it is desirable to use a thermoplastic resin in order to improve the adhesion between the matrix and the aggregate by melting the coating resin.
無機質水硬性材料には、ポルトランドセメント、珪酸カ
ルシウムゾル、炭酸マグネシウム。Inorganic hydraulic materials include Portland cement, calcium silicate sol, and magnesium carbonate.
スラグ等の混水物を使用できる。Water mixtures such as slag can be used.
本発明において使用する押出成形圧力は１０〜５０ ｋ
ａ／ｉ である。か＼る高圧力のために材料中の無機質
系軽量骨材に割れが生じても、その骨材は樹脂の皮殻で
包まれており、との皮殻は割れ難く、従って、骨材は割
れても樹脂皮殻で遮水されたま＼であるから、骨材の割
れに起因する吸水性増大＋は回避できる。The extrusion pressure used in the present invention is 10 to 50 k
It is a/i. Even if the inorganic lightweight aggregate in the material cracks due to such high pressure, the aggregate is surrounded by a resin shell, and the shell is difficult to crack, so the aggregate Even if the aggregate cracks, the water is still blocked by the resin shell, so an increase in water absorption caused by cracking of the aggregate can be avoided.
上述した通り、本発明に係る無機質系建材の押出成形方
法においては、無機質系軽量骨材を樹脂コーテングして
使用しており、押出圧力にによって骨材が割れても、そ
の割れによる吸水性の増大を回避でき、従って、その吸
収減水による材料の流動性低下を防止できるから、押出
を円滑に行うことができ、パーライト等の軽量骨材を混
合した無機質系建材を押出法によシ容易に製造できる。As mentioned above, in the extrusion molding method for inorganic building materials according to the present invention, lightweight inorganic aggregate is coated with resin, and even if the aggregate cracks due to extrusion pressure, the water absorption will not decrease due to the cracking. Since it is possible to avoid the increase in fluidity of the material due to water absorption, extrusion can be carried out smoothly, and inorganic building materials mixed with lightweight aggregates such as perlite can be easily extruded. Can be manufactured.
Claims (1)
材を混入した無機質水硬性材料を押出成形することを特
徴とする無機質系建材の押出成形方法。A method of extrusion molding an inorganic building material, characterized by extruding an inorganic hydraulic material mixed with an inorganic lightweight aggregate whose surface can be coated with a resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP603783A JPS59131405A (en) | 1983-01-17 | 1983-01-17 | Extrusion molding method for inorganic group building material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP603783A JPS59131405A (en) | 1983-01-17 | 1983-01-17 | Extrusion molding method for inorganic group building material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59131405A true JPS59131405A (en) | 1984-07-28 |
Family
ID=11627446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP603783A Pending JPS59131405A (en) | 1983-01-17 | 1983-01-17 | Extrusion molding method for inorganic group building material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59131405A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61209972A (en) * | 1985-03-15 | 1986-09-18 | 旭化成株式会社 | Lightweight composition for extrusion molding |
| JPH0517194A (en) * | 1991-07-11 | 1993-01-26 | Noda Corp | Production of building board |
-
1983
- 1983-01-17 JP JP603783A patent/JPS59131405A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61209972A (en) * | 1985-03-15 | 1986-09-18 | 旭化成株式会社 | Lightweight composition for extrusion molding |
| JPH0517194A (en) * | 1991-07-11 | 1993-01-26 | Noda Corp | Production of building board |
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