JPH04198056A - Production of lightweight concrete panel - Google Patents
Production of lightweight concrete panelInfo
- Publication number
- JPH04198056A JPH04198056A JP33258590A JP33258590A JPH04198056A JP H04198056 A JPH04198056 A JP H04198056A JP 33258590 A JP33258590 A JP 33258590A JP 33258590 A JP33258590 A JP 33258590A JP H04198056 A JPH04198056 A JP H04198056A
- Authority
- JP
- Japan
- Prior art keywords
- concrete
- slurry
- lightweight
- lightweight aggregate
- setting
- 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.)
- Granted
Links
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〕
本発明は、軽量コンクリートパネル、特に軽量骨材入り
の軽量コンクリートパネルに関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to lightweight concrete panels, particularly lightweight concrete panels containing lightweight aggregate.
［背景技術］
軽量コンクリートパネルには、軽量骨材コンクリートパ
ネルと軽量気泡コンクリートパネルかある。軽量骨材コ
ンクリートパネルは、軽量気泡コンクリートパネルと比
へて、軽量骨材を使用しているため、比重をコントロー
ルし易く、かつ厚さの厚い内外壁一体型の大きなパネル
か得られるという特長を有する。[Background technology] Lightweight concrete panels include lightweight aggregate concrete panels and lightweight aerated concrete panels. Compared to lightweight aerated concrete panels, lightweight aggregate concrete panels use lightweight aggregate, making it easier to control the specific gravity and producing large panels with thick inner and outer walls. have
このような軽量骨材コンクリートパネルは、軽量骨材（
例えば、パーライト等）入りの軽量コンクリートスラリ
ーを成形用型枠内に打設して製造されている。Such lightweight aggregate concrete panels are manufactured using lightweight aggregate (
For example, it is manufactured by pouring a lightweight concrete slurry containing perlite into a forming form.
［発明か解決しようとする課題］
従来の軽量骨材コンクリートパネルの製造において、型
枠へのスラリーの流し込みを容易にするため、スラリー
の粘度を低くして流動性を高めると、スラリーを成形用
型枠内に打設した後、反応硬化（凝固）させる間に軽量
骨材か表面に浮き上かり、得られたパネルの表面には軽
量骨材か露出して外観が不良になる。そこで、表面の軽
量骨材を隠すためには、塗膜の厚い仕上げ塗装が必要に
なり、作業か面倒になることに加えて、意匠的にも好ま
しいものか得られなくなっていた。[Problem to be solved by the invention] In the production of conventional lightweight aggregate concrete panels, in order to make it easier to pour the slurry into the formwork, it is possible to lower the viscosity of the slurry and increase its fluidity. After pouring into the formwork, the lightweight aggregate floats to the surface during reaction hardening (solidification), resulting in exposed lightweight aggregate on the surface of the resulting panel, resulting in poor appearance. Therefore, in order to hide the lightweight aggregate on the surface, a thick finish coating is required, which not only makes the work more troublesome, but also makes it difficult to obtain a desirable design.
一方、このような軽量骨材の浮き上がりを防止しようと
して、コンクリートスラリーの粘度を上げると、スラリ
ーの流動性か悪くなって、型枠へ流し込みか困難になっ
ていた。On the other hand, if the viscosity of the concrete slurry is increased in an attempt to prevent such lightweight aggregate from lifting, the fluidity of the slurry deteriorates, making it difficult to pour it into formwork.
本発明は、凝固時にコンクリートスラリー中の軽量骨材
の混和状態を良好に保つことかできる軽量コンクリート
パネルの製造方法を提供することを目的とする。SUMMARY OF THE INVENTION An object of the present invention is to provide a method for manufacturing lightweight concrete panels that can maintain a good mixing state of lightweight aggregate in concrete slurry during solidification.
［課題を解決するための手段］
本発明に係る軽量コンクリートパネルの製造方法は、軽
量骨材入りのコンクリートスラリーに凝結コントロール
剤を添加した後、このコンクリートスラリーを成形用型
枠内に打設し、前記コンクリートスラリーを２５〜３５
℃に保ちながら反応硬化させることを特徴とする。[Means for Solving the Problems] A method for manufacturing a lightweight concrete panel according to the present invention includes adding a setting control agent to a concrete slurry containing lightweight aggregate, and then pouring this concrete slurry into a forming form. , the concrete slurry was heated to 25 to 35
It is characterized by reaction curing while being maintained at ℃.
前記軽量骨材としては、人工軽量骨材（プラスチック中
空体等）、天然軽量骨材（パーライト等）又は副産軽量
骨材（石炭から等）を任意に使用できる。As the lightweight aggregate, artificial lightweight aggregates (plastic hollow bodies, etc.), natural lightweight aggregates (perlite, etc.), or by-product lightweight aggregates (from coal, etc.) can be arbitrarily used.
前記凝結コントロール剤は、スラリーの反応速度を調整
するためのものであり、具体的には、炭酸ナトリウム、
炭酸カリウム、クエン酸等を使用できる。The coagulation control agent is for adjusting the reaction rate of the slurry, and specifically includes sodium carbonate,
Potassium carbonate, citric acid, etc. can be used.
この凝結コントロール剤の添加量は、全粉体比で０．Ｏ
１〜０．２５重量％か好ましい。０．０１重量％より少
ないと反応をコントロールてきなくなり、また０、２５
重量％より多いとセメントの反応を妨げて充分な強度が
発現しなくなる。The amount of this caking control agent added is 0.00% in terms of total powder ratio. O
1 to 0.25% by weight is preferred. If it is less than 0.01% by weight, the reaction cannot be controlled;
If it exceeds % by weight, reaction of cement will be hindered and sufficient strength will not be developed.
前記コンクリートスラリーを反応硬化させる際に保つ温
度か前記２５℃より低い場合にはセメント粒子が沈降し
て、骨材が浮き上がりやすくなる。If the temperature maintained during reaction-hardening of the concrete slurry is lower than the 25° C., cement particles will settle and the aggregate will tend to float.
また、前記３５℃より高い場合には温度による反応性か
強くなりすぎるため、凝結コントロール剤添加の効果か
なくなって製品化かできなくなる。Further, if the temperature is higher than 35°C, the reactivity due to temperature becomes too strong, and the effect of adding a setting control agent is lost, making it impossible to commercialize the product.
コンクリートスラリーを前記温度範囲に保つには、例え
ば次のようにして行うことかてきる。In order to maintain the concrete slurry within the above-mentioned temperature range, for example, it can be done as follows.
■粉体原料の温度に応じて、混練用の水の温度を調節す
る。■Adjust the temperature of the water for kneading according to the temperature of the powder raw material.
■型枠等のスラリーと接触する装置及び雰囲気の温度を
空調手段により調節する。(2) Adjust the temperature of the equipment such as formwork that comes into contact with the slurry and the atmosphere using air conditioning means.
［作用コ
本発明に係る軽量骨材入りのコンクリートスラリー中に
は、凝結コントロール剤か添加され、また凝結反応の間
、温度か所定範囲内に保たれているのて、スラリーの流
動性を上げても、凝固中における反応速度が調節されて
、スラリー中に混和されている軽量骨材か表面側に浮き
上がらないようになる。[Function] A setting control agent is added to the concrete slurry containing lightweight aggregate according to the present invention, and the temperature is maintained within a predetermined range during the setting reaction to increase the fluidity of the slurry. However, the reaction rate during solidification is controlled so that the lightweight aggregate mixed in the slurry does not float to the surface.
［実施例］
図面を参照して本発明に係る軽量コンクリートパネルの
製造方法の一実施例を説明する。[Example] An example of the method for manufacturing a lightweight concrete panel according to the present invention will be described with reference to the drawings.
先ず、パーライトか軽量骨材として混入されたコンクリ
ートスラリーに凝結コントロール剤である炭酸カリウム
を添加して混合する。First, potassium carbonate, which is a setting control agent, is added to concrete slurry containing perlite or lightweight aggregate and mixed.
次に、第１図に示すように、コンクリートスラリー１１
を２５〜３５℃に加温し、この温度のコンクリートスラ
リー１１を成形用型枠１２内に打設する。この打設の際
、凝結コントロール剤が添加され、かつスラリー１１の
温度か２５〜３５℃に保たれているため、スラＩＪ−１
１か充分な流動性を持っている。このコンクリートスラ
リー１１には、軽量骨材１３か均一に分散されている。Next, as shown in FIG.
The concrete slurry 11 at this temperature is poured into the molding form 12. During this pouring, a setting control agent is added and the temperature of the slurry 11 is maintained at 25 to 35°C, so that the slurry IJ-1
1 or has sufficient liquidity. Lightweight aggregate 13 is uniformly dispersed in this concrete slurry 11.
次に、第２図に示すように、コンクリートスラＩＪ−１
１を凝固させる。この凝固の際、軽量骨材１３か表面側
に浮き上がることかなくなり、スラリー１１中に均一に
混和された状態のままスラリー１１か凝固してコンクリ
ート１４となる。このようにしてコンクリ−Ｈ４中に軽
量骨材１３が均一に分散した本実施例に係る内外壁一体
型の軽量コンクリートパネル１５を得る。Next, as shown in Figure 2, concrete slurry IJ-1
Solidify 1. During this solidification, the lightweight aggregate 13 does not float to the surface side, and the slurry 11 solidifies into concrete 14 while being uniformly mixed in the slurry 11. In this way, a lightweight concrete panel 15 with integrated inner and outer walls according to this embodiment, in which the lightweight aggregate 13 is uniformly dispersed in the concrete H4, is obtained.
上記実施例によれば、軽量骨材１３入りのコンクリート
スラリー１１中には、凝結コントロール剤が添加され、
また凝結反応の間、温度が２５〜３５℃に保たれている
ため、反応速度か調節され、スラリー中に混和されてい
る軽量骨材１３か表面側に浮き上がることがなくなる。According to the above embodiment, a setting control agent is added to the concrete slurry 11 containing the lightweight aggregate 13,
Furthermore, since the temperature is maintained at 25 to 35° C. during the coagulation reaction, the reaction rate is controlled and the lightweight aggregate 13 mixed in the slurry does not float to the surface.
従って、流動性の高いスラリ−１１を使用してパネル１
５を製造することかできるため、製造効率の向上に役立
つ。Therefore, using slurry 11 with high fluidity, panel 1
5 can be manufactured, which helps improve manufacturing efficiency.
また、このようにして軽量コンクリートパネル１５を製
造てきる結果、得られたパネル１５のコンクリ−［４中
には、軽量骨材１３か均一に分散しているため、従来の
パネルの軽量骨材か上方に偏在することに伴う問題点か
解消でき、パネル１５性能が向上する。In addition, as a result of manufacturing the lightweight concrete panel 15 in this way, the lightweight aggregate 13 is uniformly dispersed in the concrete [4 of the panel 15 obtained], so the lightweight aggregate 13 of the conventional panel is This solves the problem associated with uneven distribution in the upper part, and improves the performance of the panel 15.
なお、上記実施例では、凝結コントロール剤としてスラ
リー中に炭酸カリウムを添加したか、反応速度を調整で
きるものであれば、その他の凝結コントロール剤を任意
に添加することができる。In the above examples, potassium carbonate was added to the slurry as a coagulation control agent, or any other coagulation control agent may be added as long as the reaction rate can be adjusted.
また、上記実施例では、パネルＩ５のコンクリート１４
中に軽量骨材Ｉ３を均一に分散させるようにしたか、凝
結コントロール剤の種類や添加量を調整することにより
、セメント粒子の沈降と軽量骨材１３の浮き上がりの程
度を適当に調節して意図的に軽量骨材１３の分散状態を
不均一化させることも可能になる。即ち、このようにし
て密実層（強度大、かつ断熱性小）、中間層及び低密度
層（断熱性大、かつ強度小）が連続的に形成されたパネ
ルか得られることになる。In addition, in the above embodiment, the concrete 14 of panel I5
By uniformly dispersing the lightweight aggregate I3 or adjusting the type and amount of setting control agent added, the degree of sedimentation of cement particles and lifting of the lightweight aggregate 13 can be adjusted appropriately. It also becomes possible to make the dispersion state of the lightweight aggregate 13 non-uniform. That is, in this way, a panel is obtained in which a dense layer (high strength and low heat insulation properties), an intermediate layer, and a low density layer (high heat insulation properties and low strength) are continuously formed.
［発明の効果］
本発明に係る軽量コンクリートパネルの製造方法によれ
ば、凝固時にコンクリートスラリー中の軽量骨材の混和
状態を良好に保つことかてき、この結果性能の良好なパ
ネルか得られる。[Effects of the Invention] According to the method for manufacturing a lightweight concrete panel according to the present invention, it is possible to maintain a good mixing state of the lightweight aggregate in the concrete slurry during solidification, and as a result, a panel with good performance can be obtained.
第１図は本発明の一実施例に係る軽量コンクリートパネ
ルの製造方法を示す断面図、第２図はこの実施例により
得られたパネルの断面図である。
１１・・・コンクリートスラリー、１２・・・型枠、１
３・・・軽量骨材、１４・・・コンクリート、１５・・
・軽量コンクリートパネル。
出願人 ミサワホーム株式会社FIG. 1 is a sectional view showing a method for manufacturing a lightweight concrete panel according to an embodiment of the present invention, and FIG. 2 is a sectional view of a panel obtained by this embodiment. 11... Concrete slurry, 12... Formwork, 1
3...Lightweight aggregate, 14...Concrete, 15...
・Lightweight concrete panel. Applicant Misawa Homes Co., Ltd.
Claims (1)
トロール剤を添加した後、このコンクリートスラリーを
成形用型枠内に打設し、前記コンクリートスラリーを２
５〜３５℃に保ちながら反応硬化させることを特徴とす
る軽量コンクリートパネルの製造方法。(1) After adding a setting control agent to concrete slurry containing lightweight aggregate, pour this concrete slurry into a forming form, and
A method for manufacturing a lightweight concrete panel, characterized by reaction hardening while maintaining the temperature at 5 to 35°C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2332585A JP2517175B2 (en) | 1990-11-28 | 1990-11-28 | Lightweight concrete panel manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2332585A JP2517175B2 (en) | 1990-11-28 | 1990-11-28 | Lightweight concrete panel manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04198056A true JPH04198056A (en) | 1992-07-17 |
| JP2517175B2 JP2517175B2 (en) | 1996-07-24 |
Family
ID=18256580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2332585A Expired - Fee Related JP2517175B2 (en) | 1990-11-28 | 1990-11-28 | Lightweight concrete panel manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2517175B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100415828B1 (en) * | 2001-01-31 | 2004-01-24 | 오판원 | Manufacturing method of noncombustible panel for construction |
| US7942658B1 (en) | 1999-09-15 | 2011-05-17 | Advanced Building Systems, Inc. | Systems for forming lightweight concrete block |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55149157A (en) * | 1979-05-07 | 1980-11-20 | Showa Denko Kk | Manufacture of cement product |
-
1990
- 1990-11-28 JP JP2332585A patent/JP2517175B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55149157A (en) * | 1979-05-07 | 1980-11-20 | Showa Denko Kk | Manufacture of cement product |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7942658B1 (en) | 1999-09-15 | 2011-05-17 | Advanced Building Systems, Inc. | Systems for forming lightweight concrete block |
| KR100415828B1 (en) * | 2001-01-31 | 2004-01-24 | 오판원 | Manufacturing method of noncombustible panel for construction |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2517175B2 (en) | 1996-07-24 |
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