JPH03183673A - Lightweight cellular concrete molded product and production thereof - Google Patents
Lightweight cellular concrete molded product and production thereofInfo
- Publication number
- JPH03183673A JPH03183673A JP32086889A JP32086889A JPH03183673A JP H03183673 A JPH03183673 A JP H03183673A JP 32086889 A JP32086889 A JP 32086889A JP 32086889 A JP32086889 A JP 32086889A JP H03183673 A JPH03183673 A JP H03183673A
- Authority
- JP
- Japan
- Prior art keywords
- thermosetting resin
- molded product
- panel
- resin film
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 239000011381 foam concrete Substances 0.000 title claims description 11
- 239000011347 resin Substances 0.000 claims abstract description 27
- 229920005989 resin Polymers 0.000 claims abstract description 27
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 27
- 239000004567 concrete Substances 0.000 claims abstract description 23
- 238000000465 moulding Methods 0.000 claims abstract description 9
- 239000002002 slurry Substances 0.000 claims abstract description 7
- 239000011248 coating agent Substances 0.000 abstract description 7
- 238000000576 coating method Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 239000003795 chemical substances by application Substances 0.000 abstract description 2
- 238000004078 waterproofing Methods 0.000 abstract description 2
- 239000003086 colorant Substances 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 239000003973 paint Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 229920000877 Melamine resin Polymers 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000004640 Melamine resin Substances 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 229920006015 heat resistant resin Polymers 0.000 description 2
- -1 isocyanate compounds Chemical class 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 239000012779 reinforcing material Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Chemical class 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- AUNAPVYQLLNFOI-UHFFFAOYSA-L [Pb++].[Pb++].[Pb++].[O-]S([O-])(=O)=O.[O-][Cr]([O-])(=O)=O.[O-][Mo]([O-])(=O)=O Chemical compound [Pb++].[Pb++].[Pb++].[O-]S([O-])(=O)=O.[O-][Cr]([O-])(=O)=O.[O-][Mo]([O-])(=O)=O AUNAPVYQLLNFOI-UHFFFAOYSA-L 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
- 239000001055 blue pigment Substances 0.000 description 1
- QHIWVLPBUQWDMQ-UHFFFAOYSA-N butyl prop-2-enoate;methyl 2-methylprop-2-enoate;prop-2-enoic acid Chemical compound OC(=O)C=C.COC(=O)C(C)=C.CCCCOC(=O)C=C QHIWVLPBUQWDMQ-UHFFFAOYSA-N 0.000 description 1
- CJOBVZJTOIVNNF-UHFFFAOYSA-N cadmium sulfide Chemical compound [Cd]=S CJOBVZJTOIVNNF-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001023 inorganic pigment Substances 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 244000145841 kine Species 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920002647 polyamide Chemical class 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Panels For Use In Building Construction (AREA)
- Aftertreatments Of Artificial And Natural Stones (AREA)
- Producing Shaped Articles From Materials (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、軽量気泡コンクリート成形品及びその製造方
法に関し、例えばパネル、ブロック等に利用することが
できる。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a lightweight cellular concrete molded product and a method for producing the same, and can be used for, for example, panels, blocks, etc.
［背景技術１
近年、外壁材を取付けた住宅ユニットを作製し、建築現
場に搬送して、組み立てるようにしたユニット工法や、
鉄骨軸組の構造材に外壁材を取付けるカーテンウオール
工法により工業化住宅が施工されるようになってきてい
る。[Background technology 1] In recent years, unit construction methods have been developed in which housing units with exterior wall materials attached are manufactured, transported to a construction site, and assembled.
Industrialized housing is increasingly being constructed using the curtain wall construction method, in which exterior wall materials are attached to steel frame structural members.
このような工業化住宅の外壁材として、軽量気泡コンク
リートパネルが使用されている。この軽量気泡コンクリ
ートパネルは、セメントと珪砂を主原料とするスラリー
に泡を加えたものを配筋材が配設された成形用型枠内に
打設し、−次的に硬化させてパネルに成形した後、この
パネルをオートクレーブ中で蒸気養生させることにより
製造されている。Lightweight aerated concrete panels are used as the exterior wall material of such industrialized houses. This lightweight aerated concrete panel is made by pouring foam into a slurry made mainly of cement and silica sand into a forming formwork equipped with reinforcing material, and then hardening it to form the panel. After molding, the panels are steam-cured in an autoclave.
この軽量気泡コンクリートパネルの製造において、オー
トクレーブによる養生後、その表面に防水及び耐久性の
向上等を目的として塗装を施している。In manufacturing this lightweight aerated concrete panel, after curing in an autoclave, the surface is coated for the purpose of waterproofing and improving durability.
［発明が解決しようとする課題］
上述した軽量気泡コンクリートパネルの製造において、
顔料を添加して着色されたパネルの場合、下地の色を生
かすため、その表面に塗装される塗料としては透明なも
のを選ぶ必要がある。しかし、パネル表面には微細な孔
隙があるため、−様な塗布状態か得られず、塗布むらや
塗料の下地への浸み込み量の差による色むらが生じる。[Problem to be solved by the invention] In manufacturing the above-mentioned lightweight aerated concrete panel,
In the case of panels colored by adding pigments, it is necessary to select a transparent paint to be applied to the surface in order to make the most of the underlying color. However, since there are minute pores on the panel surface, it is not possible to obtain a uniform coating condition, and color unevenness occurs due to uneven coating and differences in the amount of paint permeating into the base.
これを回避するためには、下地と同様の色を有する塗料
を塗装したり、その他の色を有する塗料を塗装しなけれ
ばならないが、塗料による着色は、下地自体の色合いや
、特に自然の素材感という特徴的な外観と比べると美観
が劣る。In order to avoid this, it is necessary to paint with a similar color to the base or paint with another color, but coloring with paint depends on the color of the base itself and especially on natural materials. Its aesthetic appearance is inferior to its characteristic appearance.
本発明は、コンクリート本体の下地の色や材質感を生か
し、かつ防水効果等も有する軽量気泡コンクリート成形
品及びその製造方法を提供することを目的とする。An object of the present invention is to provide a lightweight cellular concrete molded product that takes advantage of the color and material texture of the base of the concrete body and also has a waterproof effect, and a method for manufacturing the same.
［課題を解決するための手段］
本発明に係る軽量気泡コンクリート成形品は、コンクリ
ート本体の表面に透明な熱硬化性樹脂皮膜を形成したこ
とを特徴とする。[Means for Solving the Problems] The lightweight cellular concrete molded product according to the present invention is characterized in that a transparent thermosetting resin film is formed on the surface of the concrete body.
ここで、透明には、完全に透明な場合と共に、半透明の
場合も含む。Here, transparent includes both completely transparent and semi-transparent cases.
前記熱硬化性樹脂皮膜を形成するための材料としては、
例えばポリウレタン樹脂、アクリルメラミン樹脂、エポ
キシ樹脂、フェノール樹脂等の熱硬化性樹脂及びこれら
の樹脂に硬化剤としてのイソシアネート化合物、アミン
化合物、ポリアミド化合物等を混合したものを使用する
ことができる。The materials for forming the thermosetting resin film include:
For example, thermosetting resins such as polyurethane resins, acrylic melamine resins, epoxy resins, and phenol resins, and mixtures of these resins with isocyanate compounds, amine compounds, polyamide compounds, etc. as curing agents can be used.
また、この軽量気泡コンクリート成形品の製造方法には
、成形用型枠内に透明な熱硬化性樹脂皮膜を設ける工程
と、前記型枠内に軽量気泡コンクリートスラリーを打設
する工程と、前記熱硬化性樹脂皮膜が被着された成形品
を前記型枠から脱型する工程と、前記成形品をオートク
レーブ養生する工程とを有することを特徴とする。In addition, the method for manufacturing this lightweight cellular concrete molded product includes a step of providing a transparent thermosetting resin film in a molding form, a step of pouring a lightweight cellular concrete slurry into the forming frame, and a step of placing a lightweight cellular concrete slurry in the forming frame. The method is characterized by comprising the steps of demolding the molded product coated with the curable resin film from the mold, and curing the molded product in an autoclave.
成形用型枠内に熱硬化性樹脂皮膜を設けるには、熱硬化
性樹脂フィルムを成形用型枠内に張設してもよく、又は
熱硬化性樹脂を含む液体を成形用型枠内の表面に吹き付
は塗装して乾燥させることにより皮膜を形成するように
してもよい。To provide a thermosetting resin film within the molding frame, a thermosetting resin film may be stretched within the molding frame, or a liquid containing a thermosetting resin may be applied to the molding frame. A film may be formed by spraying or painting the surface and drying it.
［作用］
成形品に被着された熱硬化性樹脂皮膜は、オートクレー
ブ養生における熱によって硬化し、コンクリート本体と
皮膜との良好な密着状態が得られる。[Function] The thermosetting resin film applied to the molded product is hardened by the heat during autoclave curing, and good adhesion between the concrete body and the film is obtained.
［実施例］
図面を参照して、本発明を成形品である軽量気泡コンク
リートパネルに適用した場合の一実施例を、その製造方
法と併せて説明する。[Example] With reference to the drawings, an example in which the present invention is applied to a lightweight aerated concrete panel as a molded product will be described together with a manufacturing method thereof.
先ず、第１図（Ａ）に示すように、成形用型枠１１内の
表面に熱硬化性アクリルメラミン樹脂塗料を塗布して乾
燥させることにより、厚さ５０μｍの透明の熱硬化性樹
脂皮膜１２を設けた。この熱硬化性アクリルメラミン樹
脂塗料として、ベルコートＮｏ、１０００クリア〔商品
名、日本油脂（横裂〕を使用した。First, as shown in FIG. 1(A), a thermosetting acrylic melamine resin paint is applied to the surface inside the molding frame 11 and dried to form a transparent thermosetting resin film 12 with a thickness of 50 μm. has been established. As this thermosetting acrylic melamine resin paint, Bellcoat No. 1000 Clear [trade name, Nippon Oil & Fats Co., Ltd. (Yokozare]) was used.
次に、第１図（Ｂ）に示すように、成形用型枠ｌｌ内に
図示しない配筋材を配設した後、下記組成を有するコン
クリートスラリー１３を打設した。Next, as shown in FIG. 1(B), reinforcing materials (not shown) were placed in the forming form 11, and then a concrete slurry 13 having the following composition was cast.
〈コンクリートスラリーの組成〉
白色ポルトランドセメント ・・・４５重量部珪
石粉末 ・・・５５重量部アル
ミナセメント ・・・７重量部水
・・・５５重量部合成高分
子多価金属塩（発泡剤）
パフオームＥＰＭ−１［商品名、
花王（横裂〕 ・・・１重量
部コバルトブルー（青色顔料、
Ｃｏｏ ＊ ｎＡｎ２０３ ） −３重量
部次に、第１図（Ｃ）に示すように、所定時間養生後、
成形されたコンクリート本体１４に熱硬化性樹脂皮膜１
２が被着されたパネル１５を型枠ｌｌから脱型した。<Composition of concrete slurry> White Portland cement...45 parts by weight Silica stone powder...55 parts by weight Alumina cement...7 parts by weight Water
...55 parts by weight Synthetic polymeric polyvalent metal salt (foaming agent) Perforum EPM-1 [trade name, Kao (Yokosaki)] ...1 part by weight Cobalt blue (blue pigment, Coo * nAn203) -3 parts by weight Next, as shown in FIG. 1(C), after curing for a predetermined time,
A thermosetting resin film 1 is applied to the molded concrete body 14.
The panel 15 to which No. 2 was applied was removed from the mold 11.
次に、第１図（Ｄ）に示すように、オートクレーブ１６
中にこのパネル１５を入れて、蒸気養生した。この養生
において、パネル１５に被着された熱硬化性樹脂皮膜１
２は、養生の熱（約１８０’Ｃ）により硬化し、パネル
１５表面に良好に密着した。Next, as shown in FIG. 1(D), the autoclave 16
This panel 15 was placed inside and steam-cured. During this curing, the thermosetting resin film 1 applied to the panel 15
2 was cured by the heat of curing (approximately 180'C) and adhered well to the surface of the panel 15.
次に、第１図（Ｅ）に示すように、所定時間の養生の後
、オートクレーブ１６から取り出すことにより、耐熱性
樹脂皮膜１２か被着された青色の軽量気泡コンクリート
パネル１５を得た。Next, as shown in FIG. 1(E), after curing for a predetermined time, the panel was taken out from the autoclave 16 to obtain a blue lightweight cellular concrete panel 15 having a heat-resistant resin film 12 adhered thereon.
本実施例の軽量気泡コンクリートパネル１５によれば、
青色のコンクリート本体１４の表面に透明の熱硬化性樹
脂皮膜１２が被着されているため、下地の色や素材感を
そのまま生かしたパネル１５か得られる。このように下
地の色がパネル１５の色となるため、例えばガラスコー
チインク（施釉）をしてほうろう仕上げとし、このほう
ろうの下地をパネル１５の色とすることもできる。According to the lightweight aerated concrete panel 15 of this example,
Since the transparent thermosetting resin film 12 is coated on the surface of the blue concrete body 14, a panel 15 that retains the color and texture of the base material can be obtained. In this way, the color of the base becomes the color of the panel 15, so for example, it is possible to apply glass coach ink (glaze) to give an enameled finish, and use this enamel base as the color of the panel 15.
また、この耐熱性樹脂皮膜１２が良好な防水性を有する
ため、塗料を塗布しないでも防水効果が得られ、結果と
してパネル１５の耐久性も向上する。これにより、従来
のようなオートクレーブ後の塗料の塗布工程を省くこと
ができ、製造工程の能率化に役立つ。Moreover, since this heat-resistant resin film 12 has good waterproof properties, a waterproof effect can be obtained without applying paint, and as a result, the durability of the panel 15 is also improved. This makes it possible to omit the conventional paint application process after autoclaving, which helps streamline the manufacturing process.
本実施例の製造方法によれば、パネル１５に被着された
熱硬化性樹脂皮膜１２の硬化は、オートクレーブ養生の
際の熱を利用して行われるため、独立に硬化のための加
熱を行う場合と比べて経済的である。According to the manufacturing method of this embodiment, since the thermosetting resin film 12 applied to the panel 15 is cured using the heat during autoclave curing, heating for curing is performed independently. It is economical compared to other cases.
更に、熱硬化性樹脂皮膜１２は、オートクレーブの熱に
よる硬化によってパネル１５表面に良好に密着するため
、皮膜１２がパネル１５から剥離する虞れはなくなる。Further, since the thermosetting resin film 12 adheres well to the surface of the panel 15 by being cured by the heat of the autoclave, there is no possibility that the film 12 will peel off from the panel 15.
なお、上記実施例においては、透明な熱硬化性樹脂皮膜
１２を使用して着色された下地の色を生かすようにした
が、単に防水効果を得るだけであれば、熱硬化性樹脂皮
膜１２が完全な透明でなくてもよい。しかし、形成され
る熱硬化性樹脂皮膜１２の厚さが薄い場合、仮に着色し
た皮膜１２であっても実質的に透明となって、着色され
た下地の色を生かすことかできる。In the above embodiment, the transparent thermosetting resin film 12 was used to make the most of the color of the colored base, but if the only purpose is to obtain a waterproof effect, the thermosetting resin film 12 is It doesn't have to be completely transparent. However, if the thickness of the thermosetting resin film 12 to be formed is small, even if the film 12 is colored, it becomes substantially transparent, allowing the color of the colored base to be utilized.
また、コンクリート本体１４を着色するための無機顔料
としては、所望の色に応じて種々の顔料を使用すること
かできるが、例えばチタニウムイエロー、モリブデンレ
ッド、モリブデンホワイト、キネ−クリーン、カドミウ
ムイエロー コバルトブルー等を挙げることかできる。Furthermore, various pigments can be used as the inorganic pigment for coloring the concrete body 14 depending on the desired color, such as titanium yellow, molybdenum red, molybdenum white, Kine Clean, cadmium yellow cobalt blue. I can list many things.
更に、上記実施例においては、成形品の例をパネルとじ
てか、パネル以外にも、例えばブロック等としてもよい
。Further, in the above embodiments, the molded product may be made of a panel, or may be made of other materials other than panels, such as a block.
［発明の効果１
本発明によれば、コンクリート本体の下地の色を生かし
、かつ防水効果等も有する軽量気泡コンクＩＪ −ト成
形品が得られる。また、本発明の製造方ｌ去により、こ
の成形品を経済的に製造することかできる。[Effects of the Invention 1] According to the present invention, a lightweight cellular concrete IJ-molded product that takes advantage of the color of the base of the concrete body and also has a waterproof effect, etc. can be obtained. Further, by the manufacturing method of the present invention, this molded article can be manufactured economically.
第１図（Ａ）〜（Ｅ）は本発明の一実施例に係る軽量気
泡コンクリートパネルの製造方法を示す工程図である。
１１・・・成形用型枠、１２・・・熱硬化性樹脂皮膜、
１３・・・コンクリート本体、１４・・・軽量気泡コン
クリートパネル。FIGS. 1(A) to 1(E) are process diagrams showing a method for manufacturing a lightweight cellular concrete panel according to an embodiment of the present invention. 11... Formwork for molding, 12... Thermosetting resin film,
13...Concrete body, 14...Lightweight aerated concrete panel.
Claims (2)
膜を形成したことを特徴とする軽量気泡コンクリート成
形品。(1) A lightweight cellular concrete molded product characterized by a transparent thermosetting resin film formed on the surface of the concrete body.
工程と、 前記型枠内に軽量気泡コンクリートスラリーを打設する
工程と、 前記熱硬化性樹脂皮膜が被着された成形品を前記型枠か
ら脱型する工程と、 前記成形品をオートクレーブ養生する工程と、を有する
ことを特徴とする軽量気泡コンクリート成形品の製造方
法。(2) a step of providing a transparent thermosetting resin film within a molding frame; a step of pouring a lightweight aerated concrete slurry into the mold; and a molded product coated with the thermosetting resin film. A method for producing a lightweight aerated concrete molded product, comprising the steps of: demolding the molded product from the form; and curing the molded product in an autoclave.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32086889A JPH03183673A (en) | 1989-12-11 | 1989-12-11 | Lightweight cellular concrete molded product and production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32086889A JPH03183673A (en) | 1989-12-11 | 1989-12-11 | Lightweight cellular concrete molded product and production thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03183673A true JPH03183673A (en) | 1991-08-09 |
Family
ID=18126153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32086889A Pending JPH03183673A (en) | 1989-12-11 | 1989-12-11 | Lightweight cellular concrete molded product and production thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03183673A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5669289A (en) * | 1979-11-10 | 1981-06-10 | Matsushita Electric Works Ltd | Inorganic lightweight board |
| JPS63151692A (en) * | 1986-12-16 | 1988-06-24 | 三菱マテリアル株式会社 | Surface finishment for cement set body |
| JPS63178004A (en) * | 1987-01-20 | 1988-07-22 | ミサワホ−ム株式会社 | Manufacture of light-weight aerated concrete |
-
1989
- 1989-12-11 JP JP32086889A patent/JPH03183673A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5669289A (en) * | 1979-11-10 | 1981-06-10 | Matsushita Electric Works Ltd | Inorganic lightweight board |
| JPS63151692A (en) * | 1986-12-16 | 1988-06-24 | 三菱マテリアル株式会社 | Surface finishment for cement set body |
| JPS63178004A (en) * | 1987-01-20 | 1988-07-22 | ミサワホ−ム株式会社 | Manufacture of light-weight aerated concrete |
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