JPH026376A - Production of lightweight cellular concrete - Google Patents
Production of lightweight cellular concreteInfo
- Publication number
- JPH026376A JPH026376A JP15705088A JP15705088A JPH026376A JP H026376 A JPH026376 A JP H026376A JP 15705088 A JP15705088 A JP 15705088A JP 15705088 A JP15705088 A JP 15705088A JP H026376 A JPH026376 A JP H026376A
- Authority
- JP
- Japan
- Prior art keywords
- cement paste
- cement
- added
- bubbles
- sodium carbonate
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000011381 foam concrete Substances 0.000 title abstract description 9
- 239000004568 cement Substances 0.000 claims abstract description 36
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 17
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 12
- 239000004567 concrete Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 10
- 239000004088 foaming agent Substances 0.000 abstract description 9
- 239000011398 Portland cement Substances 0.000 abstract description 5
- 239000000843 powder Substances 0.000 abstract description 5
- 238000007796 conventional method Methods 0.000 abstract description 4
- 239000000377 silicon dioxide Substances 0.000 abstract description 4
- -1 etc. Substances 0.000 abstract description 3
- 239000007864 aqueous solution Substances 0.000 abstract description 2
- 239000004576 sand Substances 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 abstract 3
- 239000004604 Blowing Agent Substances 0.000 abstract 1
- 239000011369 resultant mixture Substances 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 description 7
- 238000005187 foaming Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000002562 thickening agent Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920002978 Vinylon Polymers 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
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000001723 curing Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000002747 voluntary effect Effects 0.000 description 1
Landscapes
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、軽量気泡コンクリートの製造方法に関する
ものである。さらに詳しくは、この発明は、セメントペ
ーストの賦形より成形処理に至るまでの時間を短縮し、
生産性を向上させることのできる軽量気泡コンクリート
の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 lightweight cellular concrete. More specifically, the present invention shortens the time from shaping the cement paste to the molding process,
The present invention relates to a method for manufacturing lightweight cellular concrete that can improve productivity.
（従来の技術）
従来より、軽量気泡コンクリートは、内外装材として広
く用いられており、セメントペーストに気泡を導入し、
混練、成形および養生することにより’Ｍｍされている
。セメントペーストに気泡を導入する方法としては、プ
レフォーム法、起泡剤を混和して泡立てる方法、発泡剤
を用いて化学反応により発生させたガスを利用する方法
などの方法が知られている。しかし、いずれの方法にお
いてら、気泡を分散した未硬化のセメントペーストは強
度が低く成形が難しいため、硬化の時間を短縮して生産
性の向上を図るには硬化促進剤などを配合するのが一般
的であった。(Conventional technology) Lightweight aerated concrete has traditionally been widely used as interior and exterior materials, and is made by introducing air bubbles into cement paste.
It is 'Mm'ed by kneading, shaping and curing. Known methods for introducing air bubbles into cement paste include a preform method, a method of mixing and foaming a foaming agent, and a method of utilizing gas generated by a chemical reaction using a foaming agent. However, with either method, the uncured cement paste with dispersed air bubbles has low strength and is difficult to mold, so it is recommended to add a curing accelerator etc. in order to shorten the curing time and improve productivity. It was common.
（発明が解決しようとする課題）
しかしながら、これまでの方法のように、セメントペー
ストに硬化促進剤等を添加する場合においてら、セメン
トペーストが硬化するまでにはなお相当の時間を必要と
し、結局は生産性の向上を十分に高めることができなか
った。(Problem to be Solved by the Invention) However, even when adding a hardening accelerator etc. to the cement paste as in the conventional method, it still takes a considerable amount of time for the cement paste to harden. could not sufficiently improve productivity.
この発明は、このような事情に鑑みてなされたらのであ
り、従来法の欠点を改善し、セメントペーストに気泡を
導入後、そのセメントペーストが短時間で賦形、成形可
能な強度に達するようにすることのできる軽量気泡コン
クリートの製造方法を提供することを目的としている。This invention was made in view of these circumstances, and it improves the shortcomings of the conventional method and makes it possible for the cement paste to reach a strength that allows it to be shaped and molded in a short time after introducing air bubbles into the cement paste. The purpose of the present invention is to provide a method for producing lightweight aerated concrete that can be used to produce lightweight cellular concrete.
（課題を解決するための手段）
この発明は、上記の課題を解決するなめに、気泡を導入
したセメントペース１〜に炭酸ソーダを添加し、成形す
ることを特徴とする軽量気泡コンクリートの製造方法を
提供する。(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides a method for producing lightweight aerated concrete, which is characterized in that soda carbonate is added to cement paste 1 to which air bubbles have been introduced and the mixture is formed. I will provide a.
この発明の製造方法において、セメントペーストに配合
するセメント材としては、従来より軽址気泡コンクリー
トの製造に一般に用いられてきたものを広く使用するこ
とかでき、たとえば、片道ポル１へランドセメント、早
強ポルトランドセメント、中庸ポルトランドセメントな
どのｌｉｔ昧ポルトランドセメント、混合ポルトランド
セメント、アルミナセメントなどの各種のセメントを用
いることができる。In the manufacturing method of the present invention, as the cement material to be mixed with the cement paste, it is possible to use a wide variety of cement materials that have been generally used in the manufacturing of light-setting aerated concrete. Various cements such as strong Portland cement, moderate Portland cement, mixed Portland cement, and alumina cement can be used.
また、セメント材には、ケイ砂、ゲイ５扮、フライアヅ
シュ、シリカフラワー、炭酸カルシウム等の骨材、メチ
ルセルロース等の増粘剤、ビニロン、ポリプロピレン等
の繊維、共重合体等の粉末補強材、弁水剤などを混合す
ることができる。In addition, cement materials include aggregates such as silica sand, silica powder, flyadush, silica flour, and calcium carbonate, thickeners such as methylcellulose, fibers such as vinylon and polypropylene, powder reinforcing materials such as copolymers, and valves. Can be mixed with liquid medicines, etc.
このようなセメン１〜ペーストに気泡を導入する方法に
も特に制限はなく、プレフォーム法、起泡剤の混和ある
いは発泡剤による化学反応などによリミキサ中で起泡さ
せるミグスフオーム法等の任意の方法を採用することか
できる。起泡剤の混和により起泡する場合には、起泡剤
として蛋白質系起泡剤あるいはノニオン系または両性系
の起泡性界面活性剤を使用することができる。また、そ
の使用量は製造する製品の比重に応じて適宜定めるが、
通常はセメント１００重量部に対して１０〜２０重量部
程度使用するのが好ましい。There is no particular restriction on the method of introducing air bubbles into the cement 1 paste, and any method such as a preform method, a migs foam method in which foaming is performed in a remixer by mixing a foaming agent or a chemical reaction with a foaming agent, etc. can be used. method can be adopted. In the case of foaming by mixing a foaming agent, a protein-based foaming agent or a nonionic or amphoteric foaming surfactant can be used as the foaming agent. In addition, the amount used will be determined as appropriate depending on the specific gravity of the product being manufactured.
Usually, it is preferable to use about 10 to 20 parts by weight per 100 parts by weight of cement.
気泡を導入したセメントペーストには炭酸ソータを添加
する。添加する炭酸ソータは、粒径数十〜数百μ「ｎの
粉末、または濃ｌゾ水溶液として用いることかできる。Carbonate sorter is added to the cement paste into which air bubbles have been introduced. The carbonic acid sorter to be added can be used as a powder with a particle size of several tens to several hundreds of microns or as a concentrated aqueous solution.
また、その添加量は必要とするセメントペーストの初期
強度に応じて定めることかできる。Further, the amount added can be determined depending on the required initial strength of the cement paste.
炭酸ソーダを添加したセメントペース１〜は、従来法を
用いて賦形、成形することができる。なお、型枠にセメ
ントペーストを流し入れて賦形する場合には、型枠に流
し入れた後炭酸ソーダを添加してもよい。Cement paste 1 to which soda carbonate has been added can be shaped and molded using conventional methods. In addition, when pouring cement paste into a mold and shaping it, soda carbonate may be added after pouring into the mold.
（作 用）
この発明の製造方法においては、気泡導入後の炭酸ソー
ダの配合により、セメントペーストがＩ賦形、成形可能
な強度に硬化するまでの時間を著しく短縮することがで
きる。(Function) In the production method of the present invention, by adding soda carbonate after introducing bubbles, the time required for the cement paste to harden to a strength that allows it to be shaped and molded can be significantly shortened.
（実施例）
以下、実施例を示し、さらに具体的にこの発明を説明す
る。(Example) Hereinafter, the present invention will be explained in more detail with reference to Examples.
実施例 １
普通ポルトランドセメント４５重量部、ゲイ石粉４５重
量部、フライアッシュ１０重量部、起泡剤１０重量部、
増粘剤０，５重量部、碗水剤０．５重量部に水を４０重
量部混合し、セメントペーストを調製した。Example 1 45 parts by weight of ordinary Portland cement, 45 parts by weight of gay stone powder, 10 parts by weight of fly ash, 10 parts by weight of foaming agent,
A cement paste was prepared by mixing 40 parts by weight of water with 0.5 parts by weight of a thickener and 0.5 parts by weight of a potting agent.
そのセメントペーストを発泡器を用いて泡立て、賦形し
、炭酸ソーダを１重量部添加して再度均一になるように
調製し、軽量気泡コンクリート板に成形した。The cement paste was foamed and shaped using a foamer, 1 part by weight of soda carbonate was added to make it uniform again, and the paste was formed into a lightweight cellular concrete board.
この場合の炭酸ソーダを添加したセメントスラリーの硬
化速度を評価するために、賦形３０分後の圧縮強度を測
定した。その結果を第１表に示す。In order to evaluate the hardening speed of the cement slurry to which soda carbonate was added in this case, the compressive strength was measured 30 minutes after shaping. The results are shown in Table 1.
圧縮強度は、炭酸ソーダを添加しない場合に比べて１０
倍以上であった。The compressive strength is 10% higher than that without adding soda carbonate.
It was more than double that.
実施例 ２〜３
炭酸ソーダの添加量を２重量部（実施例２）および５重
量部（実施例３）とし、実施例１と同様に軽鼠気泡コン
クリート板を製造した。Examples 2 to 3 Light foam concrete plates were produced in the same manner as in Example 1, except that the amount of soda carbonate added was 2 parts by weight (Example 2) and 5 parts by weight (Example 3).
実施例１と同様に、賦形３０分後の圧縮強度を測定した
。結果を第１表に示した。As in Example 1, the compressive strength was measured 30 minutes after shaping. The results are shown in Table 1.
比較例 １
炭酸ソーダを添加せずに実施例１と同様に軽量気泡コン
クリート板を製造し、賦形３０分後の圧縮強度を測定し
た。結果を第１表に示した。Comparative Example 1 A lightweight cellular concrete board was produced in the same manner as in Example 1 without adding soda carbonate, and the compressive strength was measured 30 minutes after shaping. The results are shown in Table 1.
第１表
（発明の効果）
この発明によれば、軽量気泡コンクリートを製造するに
際し、気泡を導入したセメントペーストに炭酸ソーダを
添加して成形することにより、短時間でセメントペース
トを賦形、成形可能な強度とすることができる。軽量気
泡コンクリートの生産性は大きく向上する。Table 1 (Effects of the Invention) According to the present invention, when producing lightweight aerated concrete, by adding soda carbonate to the cement paste into which air bubbles have been introduced and forming it, the cement paste can be shaped and formed in a short time. It can be as strong as possible. The productivity of lightweight aerated concrete will be greatly improved.
第１表に示した結果から明らかなように、この発明の実
施例においては、気泡を導入したセメンｌ−ペーストの
初期圧縮強度は著しく向上して０ることか確認された。As is clear from the results shown in Table 1, it was confirmed that in the examples of the present invention, the initial compressive strength of the cement l-paste into which air bubbles were introduced was significantly improved to 0.
代理人 弁理士 西 澤 利 夫手続補正書（
自
発）（２）
平成１年
４月１４日
６゜
補正の内容
（１） 明ｌＳＩ書第４頁第４行の［ミクス」の記載
を「ミックス」と訂正いたしまず。Agent Patent Attorney Toshio Nishizawa Procedural Amendment (
Voluntary) (2) April 14, 1999 6゜Amendment Contents (1) First, the description of [mix] on page 4, line 4 of the Meiji SI has been corrected to ``mix''.
（２） 明細書第４頁第１４行の１数百μｍ」の記載
をｒ数千μｍ」と訂正いたしまず。(2) First, we have corrected the statement "1 several hundred μm" on page 4, line 14 of the specification to "r several thousand μm."
（３） 明Ａ［１書第５頁第１７〜１８行の［を用い
て泡立て、賦形し、の記載を「で生成させた泡と混合し
た後」と訂正いたします。(3) Akira A [Book 1, page 5, lines 17-18, the description of [whipping and shaping using] has been corrected to ``after mixing with the foam generated by.''
」
発明の名称
軽量気泡コンクリ−１−の製造方法
補正をする者
事件との関係 特許出願人
住所 大阪府門真市大字門真１０４８番地名称 （
５８３）松下電工株式会社
代表者三好俊夫
４、代
理
人 （郵便番号１５０）
東京都渋谷区宇田川町２−１
渋谷ホームズ４２３
補正の対象” Name of the invention Relationship to the case concerning the person amending the manufacturing method of lightweight cellular concrete 1- Patent applicant address 1048 Kadoma, Kadoma City, Osaka Prefecture Name (
583) Matsushita Electric Works Co., Ltd. Representative Toshio Miyoshi 4, Agent (Postal code 150) Shibuya Homes 423, 2-1 Udagawa-cho, Shibuya-ku, Tokyo Subject of amendment
Claims (1)
し、成形することを特徴とする軽量気泡コンクリートの
製造方法。A method for producing lightweight aerated concrete, which is characterized by adding soda carbonate to a cement paste into which air bubbles have been introduced, and then forming the mixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15705088A JPH026376A (en) | 1988-06-25 | 1988-06-25 | Production of lightweight cellular concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15705088A JPH026376A (en) | 1988-06-25 | 1988-06-25 | Production of lightweight cellular concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH026376A true JPH026376A (en) | 1990-01-10 |
Family
ID=15641100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15705088A Pending JPH026376A (en) | 1988-06-25 | 1988-06-25 | Production of lightweight cellular concrete |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH026376A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4098639A1 (en) * | 2021-06-03 | 2022-12-07 | Sika Technology AG | Foamed mineral binder compositions |
-
1988
- 1988-06-25 JP JP15705088A patent/JPH026376A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4098639A1 (en) * | 2021-06-03 | 2022-12-07 | Sika Technology AG | Foamed mineral binder compositions |
| WO2022253592A1 (en) * | 2021-06-03 | 2022-12-08 | Sika Technology Ag | Foamed mineral binder compositions |
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