JPS63295485A - Molding material for lightweight aerated concrete - Google Patents
Molding material for lightweight aerated concreteInfo
- Publication number
- JPS63295485A JPS63295485A JP13028587A JP13028587A JPS63295485A JP S63295485 A JPS63295485 A JP S63295485A JP 13028587 A JP13028587 A JP 13028587A JP 13028587 A JP13028587 A JP 13028587A JP S63295485 A JPS63295485 A JP S63295485A
- Authority
- JP
- Japan
- Prior art keywords
- molding material
- bubbles
- agent
- foaming agent
- aerated 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
- 239000012778 molding material Substances 0.000 title claims abstract description 28
- 239000004567 concrete Substances 0.000 title abstract description 7
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 16
- 239000004088 foaming agent Substances 0.000 claims abstract description 14
- 239000004568 cement Substances 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000011381 foam concrete Substances 0.000 claims description 17
- 239000002002 slurry Substances 0.000 abstract description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract description 6
- 238000010521 absorption reaction Methods 0.000 abstract description 6
- 229920001296 polysiloxane Polymers 0.000 abstract description 3
- 235000018102 proteins Nutrition 0.000 abstract description 3
- 102000004169 proteins and genes Human genes 0.000 abstract description 3
- 108090000623 proteins and genes Proteins 0.000 abstract description 3
- 239000002280 amphoteric surfactant Substances 0.000 abstract description 2
- 239000005018 casein Substances 0.000 abstract description 2
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 abstract description 2
- 235000021240 caseins Nutrition 0.000 abstract description 2
- 239000003292 glue Substances 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 abstract 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 1
- -1 alubumin Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000002736 nonionic surfactant Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 15
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000013585 weight reducing agent Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000011398 Portland cement Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 description 1
- 102000009027 Albumins Human genes 0.000 description 1
- 108010088751 Albumins Proteins 0.000 description 1
- 229920002978 Vinylon Polymers 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- HPXRVTGHNJAIIH-UHFFFAOYSA-N cyclohexanol Chemical compound OC1CCCCC1 HPXRVTGHNJAIIH-UHFFFAOYSA-N 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
Landscapes
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
Abstract
Description
【発明の詳細な説明】
［技術分野１
本発明は、軽量気泡コンクリートをプレフォーム法で製
造するために用いられろ成形材料に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Technical Field 1] The present invention relates to a molding material used for manufacturing lightweight cellular concrete by a preform method.
［背景技術］
？＋！量気泡コンクリート版を製造するにあたって、そ
の製造法としては７７ター７オーム法とプレフォーム法
が一般的である。７７ター７ｔ−ム法はＡＬＣ（＾ｕｔ
ｏｃｌａｖｅｄ Ｌｉｇｌ＋ｔｗｅｉｇｈｔ Ｃｏｎｃ
ｒｅｔｅ）の製法として知られている方法であり、成形
材料を成形した後に養生する際にアルミニウム粉など金
属粉とセメントとの反応で発生する水素がスによって発
泡させて気泡を含有させるようにした方法である。しか
しこの方法はアルミニウム粉など金属粉とセメントとの
反応で発生する水素がスによって発泡させるものである
ために、気泡の径を調整することは非常に難しい、これ
に比べてプレフォーム法では起泡剤によって起泡させた
気泡を成形材料に予め配合しておき、この成形材料を成
形して養生硬化させることによって気泡が含有された軽
量気泡コンクリートを！を造する方法であり、発泡器に
よって起泡される気泡の径のコントロールは容易である
ために、コントロールした径の気泡全軽量気泡コンクリ
ート中に含有させることができる。[Background technology]? +! In manufacturing cellular concrete slabs, the 77 ter 7 ohm method and the preform method are commonly used. 77 term 7t-m method is ALC (＾ut
oclaved Ligl+tweight Conc
This is a method known as the production method for molding materials (rete), in which the hydrogen generated by the reaction between metal powder such as aluminum powder and cement when the molding material is molded and cured is foamed by gas to contain air bubbles. It's a method. However, in this method, hydrogen generated by the reaction between metal powder such as aluminum powder and cement causes bubbles to form, so it is very difficult to adjust the diameter of the bubbles.Compared to this, the preform method Lightweight cellular concrete containing air bubbles can be created by pre-blending the air bubbles created by a foaming agent into the molding material, molding the molding material, and curing and curing it! Since it is easy to control the diameter of the bubbles generated by the foamer, all the bubbles with a controlled diameter can be contained in the lightweight cellular concrete.
そして？！量気気泡コンクリート板おいて含有される気
泡の径が大きいと吸音特性が商まり、また軽量化におい
ても良好な結果が得られる。従ってプレフォーム法で軽
量気泡コンクリート板を製造するにあたって、成形材料
に配合する気泡の径を大きくフントロールする試みがな
されている。しかしながら、起泡剤で起泡させた気泡の
直径は０゜２〜０．４＋＊−程度が限度であり、気泡を
粗くして吸音特性等を高める効果には限界を有するもの
である。and? ! If the diameter of the bubbles contained in the cellular concrete board is large, the sound absorption properties will be improved, and good results can also be obtained in terms of weight reduction. Therefore, when manufacturing lightweight cellular concrete plates using the preform method, attempts have been made to increase the diameter of the bubbles added to the molding material. However, the diameter of the bubbles foamed with the foaming agent is limited to about 0.2 to 0.4+*-, and there is a limit to the effect of coarsening the bubbles and improving sound absorption properties.
［発明の目的１
本発明は、上記の点に鑑みて為されたものであり、径を
大きくした気泡を生成させて軽量気泡コンクリートの吸
音特性等を高めることができる軽量気泡コンクリート用
成形材料を提供することを目的とするものである。[Objective of the Invention 1] The present invention has been made in view of the above points, and provides a molding material for lightweight cellular concrete that can increase the sound absorption properties of lightweight cellular concrete by generating bubbles with a large diameter. The purpose is to provide
［発明の開示］
しかして本発明に係る軽量気泡コンクリート用成形材料
は、セメントを水に分散させることによって調製され、
さらに起泡剤で起泡された気泡が配合されていると共に
消泡剤が配合されていることを特徴とするものであり、
以下本発明の詳細な説明する。[Disclosure of the Invention] The molding material for lightweight cellular concrete according to the present invention is prepared by dispersing cement in water,
Furthermore, it is characterized by containing bubbles foamed with a foaming agent and also containing an antifoaming agent,
The present invention will be explained in detail below.
成形材料は普通ポルトランドセメントなどのセメントを
水に分散することによってセメントスラリーとして調製
することができるものであり、フイ２−や骨材など、さ
らに必要に応じて補強材として有機繊ｍ等を配合するこ
ともできる。この成形材料にはさらに気泡及１消泡剤が
配合される。これらの配合の方法としては例えば、起泡
剤を用いて発泡器で発泡させた気泡をセメントスラリー
に混入した後に消泡剤を添加する方法、予めセメントス
ラリーに消泡剤を配合しておいてこれに起泡剤を用いて
発泡器で発泡させた気泡を混入する方法、起泡剤を用い
て発泡器で発泡させた気泡をセメントスラリーに混入す
る際に消泡剤を同時に添加する方法の工法があるが、特
に限定されるものではない、起泡剤としては、従米から
使用されているもの、例えばにかわ、カゼイン、アルブ
ミンなど天然蛋白質系のものや両性界面活性剤等を用い
ることができる。また消泡剤としては、シリコン系消泡
剤が主として使用されるが、油状物（オクチルアルコー
ル、シクロヘキサノールなどの高級アルコール、エチレ
ングリコール等）や／ニオン３１％面活性剤（スパン、
ツルポン、シルパン等）などを用いることもでさる。消
泡剤の配合量は、その種類や、起泡剤の種類や使用量、
目的とする製品の密度などによって種々変動し、−概に
規定することはできないが、成形材料の全量に対して１
００〜５００ ＰＰＭ程度が一般的である。The molding material can be prepared as a cement slurry by dispersing cement such as Portland cement in water, and if necessary, organic fibers etc. are added as a reinforcing material. You can also. This molding material further contains foam and an antifoaming agent. Examples of methods for blending these include, for example, adding an antifoaming agent after mixing bubbles generated in a foamer with a foaming agent into the cement slurry, or adding an antifoaming agent to the cement slurry in advance. There are two methods: a method in which air bubbles generated in a foamer using a foaming agent are mixed into the cement slurry, and a method in which an antifoaming agent is added at the same time when the air bubbles generated in a foamer using a foaming agent are mixed into the cement slurry. There are several methods, but there are no particular limitations.As the foaming agent, those that have been used since Jubai, such as natural protein-based ones such as glue, casein, and albumin, and amphoteric surfactants can be used. . As antifoaming agents, silicone antifoaming agents are mainly used, but oily substances (octyl alcohol, higher alcohols such as cyclohexanol, ethylene glycol, etc.) and /ionic 31% surfactants (span,
It is also possible to use turpon, silpan, etc.). The amount of antifoaming agent mixed depends on its type, the type and amount of foaming agent used,
It varies depending on the density of the target product, etc. - Although it cannot be generally specified, 1 for the total amount of molding material.
It is generally about 00 to 500 PPM.
ここで、発泡器で得られる気泡は直径が０．２ｍ−以下
のものが多いが、成形材料に配合される消泡剤によって
気泡は成形材料中で破泡される作用を受け、この際に破
泡される作用を受けた気泡同士が合体し、さらに同様に
して多数の気泡が成形材料中で合体成長して直径が２〜
８ＩＩＩ＠程度の粗い気泡となる。このようにして成形
材料中には直径が大きい粗い気泡を含有させることがで
きることになる。そして上記のようにセメントスラリー
として調製される成形材料を周知の方法で成形して養生
硬化させることによって、コンクリート板を得ることが
できる。このとき、成形材料中の気泡が板肉に残ること
によって気泡でｏｎ化したコンクリート板を得ることが
できるが、気泡は径の大きい粗いものとして形成できる
ために、軽量気泡コンクリートの吸音特性を高めること
ができ、また軽量化の効果も高めることができる。さら
にこのように軽量気泡コンクリートの気泡は径が大さい
ために、表面を切削したりサンディングしたりして気泡
の切断部分を表面に露出させることによって、軽量気泡
コンクリートの表面に凹凸面を形成することができ、軽
量気泡コンクリートの表面化粧に変化を与えることが可
能になる。Here, the bubbles obtained by the foamer often have a diameter of 0.2 m or less, but the bubbles are broken in the molding material by the antifoaming agent added to the molding material, and at this time, The bubbles that have been subjected to the action of bursting coalesce, and in the same way, many bubbles coalesce and grow in the molding material, resulting in a diameter of 2 to 2.
It becomes coarse bubbles of about 8III@. In this way, coarse air bubbles with a large diameter can be contained in the molding material. Then, a concrete plate can be obtained by molding the molding material prepared as a cement slurry as described above by a well-known method and curing and hardening. At this time, the air bubbles in the molding material remain in the wall of the board, making it possible to obtain a concrete board that is turned on by air bubbles, but the air bubbles can be formed as coarse particles with large diameters, which improves the sound absorption properties of lightweight cellular concrete. It is also possible to improve the weight reduction effect. Furthermore, since the air bubbles in lightweight cellular concrete have a large diameter, by cutting or sanding the surface to expose the cut portions of the bubbles, an uneven surface is formed on the surface of the lightweight cellular concrete. This makes it possible to change the surface decoration of lightweight aerated concrete.
Ｋ（九
普通ポルトランドセメント６０重量部、７９４７７２１
３９重量部、有機繊維（ビニロン繊維）１重量部を水に
配合して分散させ、これにマール社製天然蛋白質系起泡
剤「マールク１７−）ＰＪで起泡させた気泡を混入する
と共にさらに三洋化成工業株式会社製シリコン系消泡剤
「５Ｐ−６ＤＪを２００ＰＰＭ添加して成形材料を調製
し、この成形材料を成形して養生することによって軽量
気泡コンクリート板を製造した〈実施例）。K (9 Ordinary Portland Cement 60 parts by weight, 7947721
39 parts by weight and 1 part by weight of organic fiber (vinylon fiber) were blended and dispersed in water, and air bubbles foamed with Marl's natural protein foaming agent "Marc 17-) PJ" were mixed therein. A molding material was prepared by adding 200 PPM of a silicone defoaming agent "5P-6DJ" manufactured by Sanyo Chemical Industries, Ltd., and the molding material was molded and cured to produce a lightweight cellular concrete board (Example).
また比較のために消泡剤を添加しないで同様にして気泡
を混入した成形材料を調製し、この成形材料を成形して
養生することによって軽量気泡コンクリート板を製造し
た（比較例）。For comparison, a molding material mixed with air bubbles was similarly prepared without adding an antifoaming agent, and this molding material was molded and cured to produce a lightweight cellular concrete board (comparative example).
このようにして製造した軽量気泡コンクリート板につい
て、気泡の直径を測定したところ比較例のものは０．２
〜Ｂ、４ｍｍであるのに対して実施例のものは２〜８ｍ
ｍと大きな直径の気泡を含有するものであった。また見
掛は比重を０．６に設定した実施例と比較例の軽量気泡
コンクリートについて騒音減少率（Ｎｏｉｓｅ Ｒｅｃ
ｌｕｃｔｉｏｎ Ｃｏｅｆｆｉｃｉｅｎｔ：ＮＲＣ）を
測定したところ、比較例のものは０．２０〜０．２５で
あったが、実施例のものは０．４〜０゜５に向上した。When measuring the diameter of the bubbles in the lightweight aerated concrete plates manufactured in this way, the diameter of the bubbles in the comparative example was 0.2.
~B, 4mm, whereas the example is 2~8m
It contained bubbles with a diameter as large as m. In addition, the apparent noise reduction rate (Noise Rec
When the sorption coefficient (NRC) was measured, it was 0.20 to 0.25 in the comparative example, but improved to 0.4 to 0.5 in the example.
［発明の効果１
上述のように本発明にあっては、成形材料に起泡剤で起
泡された気泡を配合すると共に消泡剤を配合するように
したので、消泡剤によって破泡される作用を受けた気泡
同士を成形材料中で合体させて気泡の径を大きくするこ
とができ、この成形材料で製造した軽量気泡コンクリー
トには大きな径の気泡を含有させることがで訃ることに
なって、軽量気泡コンクリートの吸音特性を高めること
ができ、また軽量化の効果も高めることができるもので
ある。[Effect of the invention 1 As described above, in the present invention, the foamed foam with the foaming agent is blended with the molding material, and the defoaming agent is also blended, so that the foam is not broken by the defoaming agent. It is possible to increase the diameter of the bubbles by coalescing the bubbles that have been affected by this in the molding material, and it is possible to increase the diameter of the bubbles by incorporating the bubbles with a large diameter into the lightweight cellular concrete manufactured with this molding material. Therefore, the sound absorption properties of lightweight cellular concrete can be enhanced, and the weight reduction effect can also be enhanced.
Claims (1)
、さらに起泡剤で起泡された気泡が配合されていると共
に消泡剤が配合されていることを特徴とする軽量気泡コ
ンクリート用成形材料。(1) A molding material for lightweight cellular concrete, characterized in that it is prepared by dispersing cement in water, and further contains bubbles foamed with a foaming agent, as well as an antifoaming agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13028587A JPS63295485A (en) | 1987-05-27 | 1987-05-27 | Molding material for lightweight aerated concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13028587A JPS63295485A (en) | 1987-05-27 | 1987-05-27 | Molding material for lightweight aerated concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63295485A true JPS63295485A (en) | 1988-12-01 |
Family
ID=15030660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13028587A Pending JPS63295485A (en) | 1987-05-27 | 1987-05-27 | Molding material for lightweight aerated concrete |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63295485A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7364015B2 (en) | 2003-03-19 | 2008-04-29 | United States Gypsum Company | Acoustical panel comprising interlocking matrix of set gypsum and method for making same |
-
1987
- 1987-05-27 JP JP13028587A patent/JPS63295485A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7364015B2 (en) | 2003-03-19 | 2008-04-29 | United States Gypsum Company | Acoustical panel comprising interlocking matrix of set gypsum and method for making same |
| US7851057B2 (en) | 2003-03-19 | 2010-12-14 | United States Gypsum Company | Acoustical panel comprising interlocking matrix of set gypsum and method for making same |
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