JPS61232281A - Manufacture of lightweight extrusion formed body - Google Patents
Manufacture of lightweight extrusion formed bodyInfo
- Publication number
- JPS61232281A JPS61232281A JP7272485A JP7272485A JPS61232281A JP S61232281 A JPS61232281 A JP S61232281A JP 7272485 A JP7272485 A JP 7272485A JP 7272485 A JP7272485 A JP 7272485A JP S61232281 A JPS61232281 A JP S61232281A
- Authority
- JP
- Japan
- Prior art keywords
- cement
- weight
- lightweight
- slaked lime
- parts
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/18—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mixtures of the silica-lime type
- C04B28/186—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mixtures of the silica-lime type containing formed Ca-silicates before the final hardening step
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】
（産業上の利用分野）
本発明は軽量の押出珪酸カルシウム水和物成形体の押出
製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for producing a lightweight extruded calcium silicate hydrate molded article by extrusion.
（従来の技術）
従来よシ押出成形機を用いて製造される檻々の珪酸カル
シウム水和物系建築材料がすでに実用化されている。特
に材料の軽量化の試みとしては、軽量骨材、たとえばシ
ラスノルーン、パーライト。(Prior Art) Calcium silicate hydrate-based building materials for cages manufactured using conventional extrusion molding machines have already been put into practical use. In particular, attempts to reduce the weight of materials include lightweight aggregates, such as Shirasu Norune and perlite.
あるいは高分子系発泡ビーズ等を用いている場合が多い
。しかしながら、前者の如き無機質軽量骨材は、成形時
に剪断力による破壊割合が高く、後者の有機系軽量骨材
は燃焼性の観点よシ添加割合に限度がある。Alternatively, foamed polymer beads and the like are often used. However, the former type of inorganic lightweight aggregate has a high rate of destruction due to shearing force during molding, and the latter organic type lightweight aggregate has a limit in the addition ratio from the viewpoint of combustibility.
さらに、これらの軽量骨材は総じて価格が高いという大
きな問題があった。そこで、高温高圧水蒸気養生した軽
量気泡コンクリート（以下ＡＬＣと称す）粉末を利用す
る強度等の品質のよい軽量珪酸カルシウム水和物成形体
の製造方法の提案が特公昭５８−５８６６号で報告され
ている。これは、ＡＬＣ粉末、セメント、生石灰、珪酸
質原料等を用いて特定の配合条件、混合条件下で成形し
て軽量な珪酸カルシウム水和物成形体を得る方法である
。Furthermore, there is a major problem in that these lightweight aggregates are generally expensive. Therefore, a proposal was made in Japanese Patent Publication No. 58-5866 to propose a method for manufacturing lightweight calcium silicate hydrate molded bodies with good strength and quality using lightweight aerated concrete (hereinafter referred to as ALC) powder cured with high-temperature and high-pressure steam. There is. This is a method in which a lightweight calcium silicate hydrate molded body is obtained by molding ALC powder, cement, quicklime, silicate raw materials, etc. under specific blending and mixing conditions.
（発明が解決しようとする問題点）
しかしながら、この提案は必須材料として生石灰を使用
していることで、発熱作用を生じ、混合材料が不安定状
態となって連続的に混合、成形することが難しいという
欠点がある。そのため、上記方法では原料の混合時にお
ける配合順序９時間等に制約があシ、成形効率が低いと
いう問題点があった。(Problem to be solved by the invention) However, this proposal uses quicklime as an essential material, which generates heat and makes the mixed material unstable, making it difficult to continuously mix and mold it. It has the disadvantage of being difficult. Therefore, the above method has problems such as restrictions on the mixing order of 9 hours during mixing of raw materials and low molding efficiency.
（問題点を解決するための手段）
そこで本発明者等は、上記の問題点を解決するために１
種々検討の結果、セメント、セメント／消石灰の重量比
が１〜２０となるように加えられる消石灰、さらにセメ
ント及び消石灰と、Ｃａｂ／５１０２の重量比が０．２
〜１．５となるように加えられる珪石粉、珪砂、珪藻土
のうち１つ以上の珪酸質原料、ＡＬＣ粉よりなり、ＡＬ
Ｃ粉末１００重量部に対して、セメントを５〜３０重量
部として配合した混合物に必要量の水を添加し混合した
のち、その混合物を押出機にて所定のダイよシ吐出させ
、次いで成形体を高温高圧水蒸気養生する軽量押出成形
体の製造方法とすることで生石灰にかえて消石灰を使用
して十分な品質の成形品が得うることを見出し本発明を
完成するに到った。(Means for solving the problem) Therefore, in order to solve the above problem, the inventors proposed the following steps.
As a result of various studies, cement, slaked lime added so that the weight ratio of cement/slaked lime was 1 to 20, and the weight ratio of cement and slaked lime to Cab/5102 was 0.2.
Consisting of one or more siliceous raw materials of silica powder, silica sand, and diatomaceous earth, ALC powder added so that the
After adding and mixing the required amount of water to a mixture of 100 parts by weight of C powder and 5 to 30 parts by weight of cement, the mixture is extruded through a predetermined die using an extruder, and then a molded body is formed. The present invention has been completed based on the discovery that a molded product of sufficient quality can be obtained by using slaked lime instead of quicklime by using a method for producing a lightweight extruded molded product that undergoes high-temperature, high-pressure steam curing.
本発明で用いられるＡＬＣ粉末とは、ＡＬＣ成形体を各
種切断、切削する際に発生する粉末、りるいは切断屑の
粉砕品等、ＡＬＣ屑粉末が利用できるが、押出成形性の
観点より好ましくは平均粒径１２ｍ１１１以下であるが
、これに限定されるものではない。The ALC powder used in the present invention can be ALC scrap powder, such as powder generated during various cutting and cutting of ALC molded bodies, or crushed products of cutting waste, but it is preferable from the viewpoint of extrudability. has an average particle size of 12m111 or less, but is not limited to this.
本発明で用いられるセメントは、ポルトランＰセメント
をはじめアルミナセメントおよびその混合セメント等を
用いることができる。添加蓋は人ＬＣ粉末Ｚｏｏ重量部
に対して５〜３０重量部である。これは５重量部未満で
はセメントのバインダーとしての機能が不十分で、押邑
成形時の賦形性に難が生じ、また高温高圧水蒸気養生後
の成形体５！１度が低い、３０重波部以上では成形体の
軽蓋化に難が生じる。好ましくはＡＬＣ粉末１００重量
部に対して、１０〜２０重量部でるる。As the cement used in the present invention, portolan P cement, alumina cement, mixed cement thereof, etc. can be used. The additive amount is 5 to 30 parts by weight based on the weight of human LC powder Zoo. If it is less than 5 parts by weight, the function as a binder for cement is insufficient, and the formability during press molding is difficult, and the molded product after high temperature and high pressure steam curing is 5.1 degrees low. If the thickness exceeds 100 mm, it will be difficult to make a molded article with a light lid. Preferably, the amount is 10 to 20 parts by weight per 100 parts by weight of ALC powder.
本発明でセメント／消石灰の重量比１〜２０゜Ｃｈ Ｏ
／ Ｓ １０雪 の重量比０．２〜１．５と規定する理
由は、いずれもこの範囲を外れると高温高圧水蒸気養生
後の成形体中のトノ９そライト結晶の生成が不十分で、
建築材料としての成形体の耐久性に問題が生じてくる。In the present invention, the weight ratio of cement/slaked lime is 1 to 20°Ch O
The reason for specifying the weight ratio of 0.2 to 1.5 is that if the weight ratio is outside this range, the formation of Tono9 sorite crystals in the molded product after high temperature and high pressure steam curing will be insufficient.
A problem arises in the durability of the molded body as a building material.
本発明では必要に応じて各種繊維、九とえば石綿、ノセ
ルプ等、また可塑剤として水溶性高分子、たとえばメチ
ルセルローズ、ポリビニルアルコール等を用いることが
できる。In the present invention, various fibers, such as asbestos, noserp, etc., and water-soluble polymers, such as methyl cellulose, polyvinyl alcohol, etc., can be used as plasticizers, as required.
（作 用）
上記の技術手段を用いることによって、原材料を混合し
た時、生石灰を使用する際に生じる発熱作用のような現
象はなく、用いる原料が同時に連続して混合可能となシ
、かつ連続して押出成形しても良好な成形体を得ること
が可能となる。(Function) By using the above technical means, when the raw materials are mixed, there is no phenomenon such as the exothermic effect that occurs when using quicklime, and the raw materials used can be mixed simultaneously and continuously. Even if extrusion molding is performed, a good molded product can be obtained.
（実施例）
以下実施例１〜４、および比較例１〜３によシ説明する
。また、その組成及配合比を次表に示す。(Example) Examples 1 to 4 and Comparative Examples 1 to 3 will be explained below. The composition and blending ratio are shown in the table below.
各側において用いた原料、押出成形装置は下記の通シで
ある。The raw materials and extrusion molding equipment used on each side are as follows.
（１）ＡＬＣ粉：平均粒径１．２ｕ以下（２）セメント
：宇部セメント社製
普通Ｉルトランドセメント
（３）消石灰：１号品
（４）生石灰：１号品
（５）珪石粉：鳥屋根珪石４１０
（６） 石 綿：ジョンズマンピル社製「６Ｄ−
０４Ｊ（７） メチルセルローズ；信越化学社製「メ
トローズ」（８） 押出成形装置；宮崎鉄工社製ｒＭ
Ｖ−ＦＭ−Ａ型」まず、次表の組成物中、実施例および
比較例に示しである配合比にて、夫々水を除くすべての
原材料をノクン型攪拌機で粗混練し、次いで攪拌しなが
ら所定量の水を添加し、さらに攪拌した。次いでその粗
混合物をスクリュウ型混線機にて混練したのち真空押出
成形機にて押出し成形し、中空パネル状の成形品を得た
。次いで、その成形品を高温高圧水蒸気養生（１８０℃
、１０にｙ／ｍ）した。得られた製品の諸性能を次表に
示す。(1) ALC powder: Average particle size 1.2u or less (2) Cement: Ordinary Rutland cement made by Ube Cement Co., Ltd. (3) Slaked lime: Product No. 1 (4) Quicklime: Product No. 1 (5) Silica powder: Bird Roof silica 410 (6) Asbestos: Johns Manpil Co., Ltd. “6D-
04J (7) Methylcellulose; “Metrose” manufactured by Shin-Etsu Chemical Co., Ltd. (8) Extrusion molding equipment; rM manufactured by Miyazaki Iron Works Co., Ltd.
V-FM-A type" First, in the composition shown in the following table, all the raw materials except water were roughly kneaded using a Nokun-type stirrer at the compounding ratios shown in Examples and Comparative Examples, and then, while stirring, A predetermined amount of water was added and further stirred. Next, the crude mixture was kneaded using a screw mixer and then extruded using a vacuum extruder to obtain a hollow panel-shaped molded product. Next, the molded product is subjected to high temperature and high pressure steam curing (180℃
, 10 y/m). The performance of the obtained product is shown in the table below.
（発明の効果） 本発明は以下のような効果を有する。(Effect of the invention) The present invention has the following effects.
■ 安価なＡＬＣ粉を用いて軽量で高強度な押出成形体
を得ることができる。■ It is possible to obtain a lightweight, high-strength extrusion molded product using inexpensive ALC powder.
■ 原材料を同時に混合でき、かつ連続して押出成形可
能であるので、極めて生産効率が高い。■ Raw materials can be mixed simultaneously and extruded continuously, resulting in extremely high production efficiency.
したがって、軽量で高強度、シかも生産性の高い安価な
押出成形体を得ることができ、建築材料として産業界へ
寄与するものは大である。Therefore, it is possible to obtain a lightweight, high-strength, highly productive, and inexpensive extrusion molded product, which greatly contributes to industry as a building material.
Claims (1)
ように加えられる消石灰、さらにセメント及び消石灰と
、ＣａＯ／ＳｉＯ＿２の重量比が０．２〜１．５となる
ように加えられる珪石粉、珪砂、珪藻土のうち１つ以上
の珪酸質原料、高温高圧蒸気養成した軽量気泡コンクリ
ート粉よりなり、高温高圧水蒸気養生した軽量気泡コン
クリート粉１００重量部に対して、セメントを５〜３０
重量部として配合した混合物に必要量の水を添加し混合
したのち、その混合物を押出機に成形させ、次いでその
成形体を高温高圧水蒸気養生することを特徴とする軽量
押出成形体の製造方法Cement, slaked lime added so that the weight ratio of cement/slaked lime is 1 to 20, and silica powder and silica sand that are added so that the weight ratio of cement and slaked lime to CaO/SiO_2 is 0.2 to 1.5. , one or more silicate raw materials of diatomaceous earth, lightweight cellular concrete powder cured with high temperature and high pressure steam, and 5 to 30 parts by weight of cement per 100 parts by weight of lightweight cellular concrete powder cured with high temperature and high pressure steam.
A method for producing a lightweight extrusion molded article, which comprises adding and mixing a required amount of water to a mixture formulated as parts by weight, molding the mixture in an extruder, and then curing the molded product in high-temperature, high-pressure steam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7272485A JPS61232281A (en) | 1985-04-08 | 1985-04-08 | Manufacture of lightweight extrusion formed body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7272485A JPS61232281A (en) | 1985-04-08 | 1985-04-08 | Manufacture of lightweight extrusion formed body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61232281A true JPS61232281A (en) | 1986-10-16 |
Family
ID=13497586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7272485A Pending JPS61232281A (en) | 1985-04-08 | 1985-04-08 | Manufacture of lightweight extrusion formed body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61232281A (en) |
-
1985
- 1985-04-08 JP JP7272485A patent/JPS61232281A/en active Pending
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