JPH026378A - Production of lightweight cellular concrete - Google Patents
Production of lightweight cellular concreteInfo
- Publication number
- JPH026378A JPH026378A JP15705188A JP15705188A JPH026378A JP H026378 A JPH026378 A JP H026378A JP 15705188 A JP15705188 A JP 15705188A JP 15705188 A JP15705188 A JP 15705188A JP H026378 A JPH026378 A JP H026378A
- Authority
- JP
- Japan
- Prior art keywords
- epoxy resin
- resin emulsion
- cement
- cement slurry
- cellular concrete
- 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
- 239000011381 foam concrete Substances 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 239000004568 cement Substances 0.000 claims abstract description 35
- 239000000839 emulsion Substances 0.000 claims abstract description 24
- 239000003822 epoxy resin Substances 0.000 claims abstract description 22
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 22
- 239000002002 slurry Substances 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 abstract description 10
- 239000011398 Portland cement Substances 0.000 abstract description 7
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 abstract description 4
- 239000004088 foaming agent Substances 0.000 abstract description 4
- 239000000843 powder Substances 0.000 abstract description 3
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 abstract description 2
- 239000011044 quartzite Substances 0.000 abstract 1
- 238000004904 shortening Methods 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 5
- 239000004567 concrete Substances 0.000 description 4
- 238000004898 kneading Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 229920000609 methyl cellulose Polymers 0.000 description 2
- 239000001923 methylcellulose Substances 0.000 description 2
- 235000010981 methylcellulose Nutrition 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 229920002978 Vinylon Polymers 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000001723 curing Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 239000002960 lipid emulsion Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004850 liquid epoxy resins (LERs) Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- BBEAQIROQSPTKN-UHFFFAOYSA-N pyrene Chemical compound C1=CC=C2C=CC3=CC=CC4=CC=C1C2=C43 BBEAQIROQSPTKN-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (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、脱型時間を
任意に制御す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 relates to a method for producing lightweight cellular concrete in which demolding time can be arbitrarily controlled.
（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、セメントスラリーに気泡を導入して賦
形および養生することにより製造されている。しかしな
がら、−ａに、この軽量気泡コンクリートは、通常のコ
ンクリートに比べると硬化が遅く、型枠を除去できるよ
うになるまでの時間（脱型時間）が長くなり、伶業効率
が低い。(Prior Art) Lightweight cellular concrete has been widely used as interior and exterior materials, and is produced by introducing air bubbles into cement slurry, shaping and curing it. However, -a, this lightweight cellular concrete hardens more slowly than normal concrete, takes a longer time until the formwork can be removed (molding time), and has low commercial efficiency.
このため、従来より軽量気泡コンクリートの製造に際し
ては、硬化を促進し脱型時間の短縮を図るため、急結剤
などの硬化促進剤をセメントスラリーに配合している。For this reason, in the production of lightweight cellular concrete, hardening accelerators such as quick-setting agents have traditionally been added to cement slurry in order to accelerate hardening and shorten demolding time.
（発明が解決しようとする課題）
しかしながら、このような硬化促進剤の使用に際しては
、その添加量や温度が軽量気泡コンクリート製品の品質
に大きく影響するのでそれらの使用条件の調節が難しい
という欠点がある。たとえば、過剰量を添加した場合に
は、長期強度の増進が停止したり、また早期にひび割れ
が生じたりしてかえって品質の低下を招くことになる。(Problem to be Solved by the Invention) However, when using such a curing accelerator, the addition amount and temperature greatly affect the quality of lightweight cellular concrete products, so there is a drawback that it is difficult to adjust the usage conditions. be. For example, if an excessive amount is added, the improvement in long-term strength may stop or cracks may occur early, resulting in a deterioration in quality.
このため、硬化促進剤の添加によらず、脱型時間の短縮
を図ることができる軽量気泡：１ンクリートの製造方法
の開発が望まれていた。For this reason, it has been desired to develop a method for producing lightweight foam 1-crete that can shorten demolding time without adding a curing accelerator.
この発明は、このような４１情に鑑みてなされたもので
あり、従来方法の欠点を改曽し、脱型時間の制御が容易
な軽層気泡：１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 the above circumstances, and aims to provide a method for producing light-layer foamed concrete that overcomes the drawbacks of conventional methods and allows easy control of demolding time. It is said that
（課題を解決するだめの手段）
この発明は、上記の課題を解決するために、セメント材
、エポキシ樹脂エマルジョンおよび水を含有するセメン
トスラリーに気泡を導入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 problems, the present invention is directed to the production of lightweight aerated concrete, which is characterized by introducing air bubbles into a cement slurry containing a cement material, an epoxy resin emulsion, and water. provide a method.
この発明の製造方法においては、セメントスラリーの主
原料として、セメント材および水の他、さらにエポキシ
樹脂エマルシミ１ンを配合することを必要としており、
この配合によって脱型時間の制御を可能としている。In the manufacturing method of this invention, in addition to cement material and water, it is necessary to further mix epoxy resin emulsion 1 as the main raw materials of cement slurry.
This formulation makes it possible to control demolding time.
エポキシ樹脂エマルジョンは、セメント材と混合する前
に予め所望の脱型時間に応じて養生ずることが好ましい
。The epoxy resin emulsion is preferably cured in advance according to the desired demolding time before being mixed with the cement material.
エポキシＩＩＩ）Ｊ脂エマルシミ！ンとしては、液状エ
ポキシ樹脂を界面活性剤でエマルジョン化したものを用
いることができる。使用するエポキシ樹脂の種類に特に
制限はないが、二液性のエポキシ樹脂エマルシミ１ンを
使用すると養生時ｊ１１１のか１瞥が容易となるので、
ニー渣・ケエボキシ樹脂エマルジョンが好適なものとし
て例示される。この二液性のエポキシ樹脂エマルシミ１
ンを使用する場合には、二液を混ぜ合せた後セメント材
と混合するまで適宜な時間養生ずる。Epoxy III) J fat emulsion stain! As the emulsion, a liquid epoxy resin emulsified with a surfactant can be used. There are no particular restrictions on the type of epoxy resin used, but if you use a two-component epoxy resin emulsion 1, it will be easier to see the j111 during curing.
A preferred example is a knee residue/key box resin emulsion. This two-component epoxy resin emulsion stain 1
When using cement, after mixing the two components, cure for an appropriate period of time before mixing with the cement material.
このようなエポキシ樹脂エマルジョンの配合量は、所望
の脱型時間にもよるが、一般にはセメント材１００重量
部に対して２〜１５重量部、より好ましくは３〜１０重
量部配合する。The amount of such an epoxy resin emulsion to be blended depends on the desired demolding time, but is generally 2 to 15 parts by weight, more preferably 3 to 10 parts by weight, based on 100 parts by weight of the cement material.
この発明の方法においては、エポキシ樹脂エマルジョン
を配合したセメントスラリーを、ｉＩｇ製し、これに気
泡を導入し、混練、賦形、養生ずることにより軒量気泡
コンクリート製晶を製造することができる。In the method of the present invention, a cement slurry containing an epoxy resin emulsion is made into iIg, and air bubbles are introduced into the cement slurry, followed by kneading, shaping, and curing, thereby making it possible to produce eaves-heavy cellular concrete crystals.
セメントスラリーの調製に際して配合するセメント材に
は、軽量気泡コンクリートの材料として従来より用いら
れてきたものを広く使用することができ、たとえば、普
通ポルトランドセメント、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ポルトランドセメント
、混合ポルトランドセメント、白色セメントなどの各種
のセメントを用いることができる。As the cement material to be mixed in the preparation of cement slurry, a wide range of materials that have been used in the past as materials for lightweight cellular concrete can be used, such as ordinary Portland cement, early-strength Portland cement,
Various cements can be used, such as portland cement such as moderate portland cement, mixed portland cement, and white cement.
このようなセメント材にはエポキシ樹脂エマルジョンお
よび水を配合するが、さらに、ゲイ石粉、フライアッシ
ュ等の骨材、メチルセルロース等の増粘剤、ビニロン、
ボリプ１７ピレン等の繊維、粉末補強材、ポリアルキル
アリルスルホン酸塩等の減水剤などを混合混練したもの
とすることができる。Such cement materials are mixed with an epoxy resin emulsion and water, but are also mixed with aggregates such as gay stone powder, fly ash, thickeners such as methylcellulose, vinylon,
It can be made by mixing and kneading fibers such as Volip 17 pyrene, powder reinforcing materials, water reducing agents such as polyalkylaryl sulfonates, and the like.
セメントスラリーに気泡を導入する方法にも特に制限は
なく、ブレフオーム法、起泡剤の混和あるいは発泡剤の
化学反応などによりミキサ中で起泡させるミグスフオー
ム法などの適宜な方法を採用することができる。There is no particular restriction on the method of introducing air bubbles into the cement slurry, and any suitable method can be adopted, such as the Breform method, the Migs foam method in which foaming is carried out in a mixer by mixing a foaming agent, or by chemical reaction of a foaming agent. .
また気泡を導入したセメントスラリーの賦形方法として
は、脱型時間を適宜調整することにより、型枠に流し込
んで硬化させる注型方法の他、押し出し成形法なども適
用することができる。In addition, as a method for shaping the cement slurry into which air bubbles have been introduced, by appropriately adjusting the demolding time, in addition to a casting method in which the cement slurry is poured into a mold and hardened, extrusion molding methods and the like can be applied.
（作 用）
この発明の製造方法においては、セメント材に配合する
エポキシ樹脂エマルジョンの配合量や養生時間を調節す
ることによって、脱型時間の大幅な短縮が可能となり、
その時間の制御は容易となる。(Function) In the manufacturing method of the present invention, by adjusting the amount of epoxy resin emulsion mixed in the cement material and the curing time, it is possible to significantly shorten the demolding time.
The time can be easily controlled.
（実施例）
以下、実施例を示してさらに置体的にこの発明の詳細な
説明する。(Examples) 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１００重量部、ゲイ石粉１０
０重量部、フライアッシュ２０重量部、メチルセルロー
ス０．２重量部、ボリア１コピレン繊Ｍ！、２重量部、
酢酸ビニルベオバ共重合体０．５重量部およびエポキシ
樹脂エマルジョン５重量部を混合混練してセメントスラ
リーを調製した。Example 1 100 parts by weight of ordinary Portland cement, 10 parts by weight of gay stone powder
0 parts by weight, 20 parts by weight of fly ash, 0.2 parts by weight of methyl cellulose, 1 part by weight of boria, M! , 2 parts by weight,
A cement slurry was prepared by mixing and kneading 0.5 parts by weight of a vinyl acetate Beova copolymer and 5 parts by weight of an epoxy resin emulsion.
この場合、エポキシ樹脂エマルジョンとしては、エポキ
シ当量１９０の液状ビスフェノールＡ／エピクロルヒド
リン型エポキシ樹脂をノニオン系界面活性剤でエマルジ
ョン化したものを、予め養生使用した。In this case, the epoxy resin emulsion was prepared by emulsifying a liquid bisphenol A/epichlorohydrin type epoxy resin with an epoxy equivalent of 190 with a nonionic surfactant and curing it in advance.
このセメントスラリーに蛋白質系起泡剤と多価カルボン
酸０．８重量部とを混和し、発泡器を用いて発泡させ、
比重が０．６となるように調整した。A protein-based foaming agent and 0.8 parts by weight of polyhydric carboxylic acid are mixed with this cement slurry, and the mixture is foamed using a foamer.
The specific gravity was adjusted to 0.6.
この気泡を導入したセメントスラリーを賦形し、軽量気
泡コンクリートを製造した。This cement slurry with air bubbles introduced was shaped to produce lightweight aerated concrete.
その際の脱型時間を測定したところ第１表に示した通り
３．５時間であり、後述の比較例に比べて３０分も短縮
された。The demolding time at that time was measured and was 3.5 hours as shown in Table 1, which was 30 minutes shorter than the comparative example described below.
実施例 ２〜３
エポキシ樹脂エマルジョンをセメント材と混合混練する
前に２時間（実施例２）および３時間（実施例３）養生
し、実施例１と同様にして軽量気泡コンクリートを製造
しな。Examples 2-3 Lightweight aerated concrete was produced in the same manner as in Example 1, curing for 2 hours (Example 2) and 3 hours (Example 3) before mixing and kneading the epoxy resin emulsion with the cement material.
これらの場合の脱型時間は第１表に示した通り、極めて
大幅に短縮された。As shown in Table 1, the demolding time in these cases was significantly reduced.
比較例 １
エポキシ樹脂エマルジョンの代わりにアクリル系樹脂エ
マルジョンを５重量部使用し、実施例１と同様にして軽
量気泡コンクリ−ｊ〜を製造した。Comparative Example 1 A lightweight cellular concrete j~ was produced in the same manner as in Example 1, except that 5 parts by weight of an acrylic resin emulsion was used instead of the epoxy resin emulsion.
その際の脱型時間を第１表に示す。脱型時間は４時間で
あった。Table 1 shows the demolding time at that time. The demolding time was 4 hours.
比較例 ２
比較例１において、アクリル系樹脂エマルジョンを予め
２時間養生して使用し、軽量気泡コンクリート板を製造
した。Comparative Example 2 In Comparative Example 1, a lightweight cellular concrete board was manufactured using the acrylic resin emulsion which had been cured for 2 hours in advance.
養生による効果はなく、脱型時間は比較例１と同様の４
時間であった。There was no effect of curing, and the demolding time was the same as Comparative Example 1.
It was time.
第１表
（発明の効果〉
この発明により、気泡を導入するセメントスラリーに配
合するエポキシ樹脂エマルジョンの養生時間、さらには
添加量を変化させることにより、製品の品質を低下させ
ることなく、脱型時間を任意に制御することができ、そ
の短縮を図ることができる。Table 1 (Effects of the Invention) According to the present invention, by changing the curing time of the epoxy resin emulsion mixed into the cement slurry into which air bubbles are introduced, as well as the amount added, the demolding time can be increased without deteriorating the quality of the product. can be arbitrarily controlled and shortened.
Claims (2)
を含有するセメントスラリーに気泡を導入することを特
徴とする軽量気泡コンクリートの製造方法。(1) A method for producing lightweight cellular concrete, which comprises introducing air bubbles into a cement slurry containing a cement material, an epoxy resin emulsion, and water.
エマルジョンを３〜１０重量部配合する請求項（１）記
載の軽量気泡コンクリートの製造方法。(2) The method for producing lightweight cellular concrete according to claim (1), wherein 3 to 10 parts by weight of an epoxy resin emulsion is mixed with 100 parts by weight of the cement material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15705188A JPH026378A (en) | 1988-06-25 | 1988-06-25 | Production of lightweight cellular concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15705188A JPH026378A (en) | 1988-06-25 | 1988-06-25 | Production of lightweight cellular concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH026378A true JPH026378A (en) | 1990-01-10 |
Family
ID=15641124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15705188A Pending JPH026378A (en) | 1988-06-25 | 1988-06-25 | Production of lightweight cellular concrete |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH026378A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992018436A1 (en) * | 1991-04-16 | 1992-10-29 | Ascher Gerard | Method for producing a product made of a lightweight material, and material having controlled physical properties thereby obtained |
| EP0592837A3 (en) * | 1992-10-12 | 1994-08-03 | Forbo Giubiasco Sa | |
| US6602924B1 (en) | 2002-04-23 | 2003-08-05 | Jin-Chih Chiang | Foamed gypsum compositions |
| JP2006046060A (en) * | 2004-06-29 | 2006-02-16 | Onoda Chemico Co Ltd | Light-weight cellular soil and banking using the same |
-
1988
- 1988-06-25 JP JP15705188A patent/JPH026378A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992018436A1 (en) * | 1991-04-16 | 1992-10-29 | Ascher Gerard | Method for producing a product made of a lightweight material, and material having controlled physical properties thereby obtained |
| EP0592837A3 (en) * | 1992-10-12 | 1994-08-03 | Forbo Giubiasco Sa | |
| US6602924B1 (en) | 2002-04-23 | 2003-08-05 | Jin-Chih Chiang | Foamed gypsum compositions |
| JP2006046060A (en) * | 2004-06-29 | 2006-02-16 | Onoda Chemico Co Ltd | Light-weight cellular soil and banking using the same |
| JP4601496B2 (en) * | 2004-06-29 | 2010-12-22 | 小野田ケミコ株式会社 | Bubble mixed lightweight soil and embankment using the same |
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