JP2004244288A - Concrete raw material of flexible concrete, and its use - Google Patents

Concrete raw material of flexible concrete, and its use Download PDF

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Publication number
JP2004244288A
JP2004244288A JP2003037787A JP2003037787A JP2004244288A JP 2004244288 A JP2004244288 A JP 2004244288A JP 2003037787 A JP2003037787 A JP 2003037787A JP 2003037787 A JP2003037787 A JP 2003037787A JP 2004244288 A JP2004244288 A JP 2004244288A
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Prior art keywords
concrete
weight
raw material
diatomaceous earth
flexible
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Japanese (ja)
Inventor
Sanji Kamigaki
三次 神垣
Toru Nomiyama
透 野見山
Eizo Kamigaki
英三 神垣
Yoshio Seri
佳雄 世利
Yuji Shimokawa
裕士 下川
Yoshiyuki Mizoguchi
善之 溝口
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FUTASE YOGYO KK
KAMIGAKIGUMI KK
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FUTASE YOGYO KK
KAMIGAKIGUMI KK
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Priority to JP2003037787A priority Critical patent/JP2004244288A/en
Publication of JP2004244288A publication Critical patent/JP2004244288A/en
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/06—Aluminous cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • C04B41/5076—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with masses bonded by inorganic cements
    • C04B41/508—Aluminous cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/50—Flexible or elastic materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Laminated Bodies (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a concrete raw material for forming flexible and humidifying concrete that has strength and is able to maintain a non-stripping and adhering state without generating large cracks even if the adhered face is deformed/displaced while retaining humidifying properties of diatomaceous earth. <P>SOLUTION: A flexible composite plate is prepared by mixing 7.6 wt.% of alumina cement, 3.0 wt.% of Portland cement, 32 wt.% of quarts sand, 12 wt.% of diatomaceous earth, 6 wt.% of blast furnace slag powder, 0.3 g of silica fume, 0.1 wt.% of zirconia, 3.2 wt.% of an additive comprising a powdered polymer, a small amount of a thickening agent, an inorganic fiber, a deodorant/ antimicrobial agent and kneading with 35 wt.% of a milling water with the mixture and spraying the resultant on a galvanized iron plate at a thickness of 1-1.5 mm to form a concrete layer 3. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、練り水で混練して塗布・吹付・成型して固化させると、そのコンクリートに調湿性があり、又薄く層状に塗布・吹付けると可撓性があって、剥離・ひび割れが発生しにくい特性のコンクリート原料とその利用技術に関する。特に金属板，プラスチック板の表面に塗布・吹付けすることで表面が珪藻土壁風で調湿性があり、しかも温度変動・外荷重・変形があって剥離しにくいという可撓性ある表面層を形成でき、可撓性板の吹付材、塗布材として有用である。
【０００２】
【従来の技術】
従来、土壁材に珪藻土を混練して塗り込めることで調湿性を有する土壁が構築されることは古くから知られ、珪藻土壁として長く使用されている。しかし土壁材では壁としての強度が弱いものであった。珪藻土をポルトランドセメントに混入して固化させて強度があるコンクリート体とすることも考えられるが、普通のポルトランドセメントと砂のコンクリートを使用すると、珪藻土はセメント成分で密閉され、珪藻土の調湿性の特性が失われるものとなっていた。又、珪藻土を多量に入れるとコンクリート強度も低下するものであった。
次に、ポルトランドセメントに細骨材（砂）を混入して水で練って金属板・プラスチック板の表面に層状に形成して固化したコンクリート層は可撓性はなく、硬質で変形・変位しにくく、金属板・プラスチック板が外部荷重・湿度変化・振動等によって変形すれば表面のコンクリート層は大きなクラックが発生し、剥離するものであった。
【０００３】
【発明が解決しようとする課題】
本発明が解決しようとする課題は、従来のこれらの問題点を解消し、珪藻土の調湿性を保有させながら、強度があり、しかも付着させた面がかなり変形・変位があっても大きなクラックを生じることなく剥離がなく付着状態を維持できる、可撓性のある調湿性のコンクリート層を表面に形成できるというコンクリート原料及びこれを利用した調湿性と可撓性がある複合板を提供することにある。
【０００４】
【課題を解決するための手段】
かかる課題を解決した本発明の構成は、
１） アルミナセメントとポルトランドセメントとのセメント材に対し珪砂・珪藻土・高炉スラグ粉を混合し、これにシリカヒュームとジルコニアを添加混合し、所定の練り水を加えて混練してコンクリートとする、可撓性コンクリートのコンクリート原料
２） アルミナセメントを０．７５〜１０重量％，ポルトランドセメントを０．１〜１０重量％，珪砂を１５〜４５重量％，珪藻土を１０〜２０重量％，高炉スラグ粉を５〜１５重量％，シリカヒュームを０．０７〜２．５重量％，ジルコニアを０．００１５〜０．７９重量％の割合で混合し、練り水を２５〜４０重量％で混練する、可撓性コンクリートのコンクリート原料
３） 可撓性金属板表面に接着剤を塗布した上面に前記１）又は２）記載のコンクリート原料でもって薄くコンクリート層を形成させた、可撓性複合板
４） プラスチック板表面に接着剤を塗布した上面に、前記１）又は２）記載のコンクリート原料でもって薄くコンクリート層を形成させた、可撓性複合板
にある。
【０００５】
【発明の実施の形態】
本発明の原料成分の実用的な配合比率の範囲は、重量％で表現すると、アルミナセメント０．１〜１０重量％，ポルトランドセメント０．１〜１０重量％，珪砂１５〜４５重量％，珪藻土を１０〜２０重量％，高炉スラグ粉を５〜１５重量％，シリカヒュームを０．０７〜２．５重量％，ジルコニアを０．００１５〜０．７９重量％を混合する。又、好ましい配合比率の範囲は、アルミナセメントを３．０〜７．９重量％，ポルトランドセメントを１〜５重量％，珪砂を３０〜４０重量％，珪藻土を１０〜１５重量％，高炉スラグ粉を５〜１０重量％，シリカヒュームを０．０３〜１．９８重量％，ジルコニアを０．００６〜０．６３重量％である。更にこれらの範囲の配合に対し、有機系混和材として粉体ポリマーを実用的に０．１〜１０重量％を，好ましくは０．１〜４重量％混入し、増粘材を実用的には０．１〜１．０重量％，好ましくは０．１〜０．５重量％混入し、有機系又は無機系の繊維を実用的には０．０１〜０．５重量％，好ましくは０．０１〜０．４重量％混入する。練り水は実用的には２５〜４０重量％，好ましくは２５〜３５重量％混入する。
これらの実用的な範囲を超えて、アルミナセメント，シリカヒューム，ジルコニアの配合比率が高くなると可撓性が低くなり、又比率が低くなると強度が不足する。又ポルトランドセメントの配合範囲は、範囲を超えて多くなるとクラックの発生が大きく、又少ないと強度低下と可撓性とが小さくなる。又珪砂の配合比率が低くなるとクラックが発生する。珪藻土が多いと強度が低下し、少ないと調湿性が小さくなる。又粉体ポリマーの有機系混和材は、多いと調湿機能を低下させ、少ないと強度が低下する。増粘材も多いと強度が低下し、乾燥時間が遅くなる。少ないと可使時間が短くなる。繊維は少ないとクラックが発生し易く又、多いと吹付のガンに詰まり易くなり、施工しにくくなる。練り水は少ないと吹付けが難しくなり、又多いとクラック・骨材分離を生じる。
本発明のコンクリート原料は、種々の素材の可撓性の板、そうでない部材いずれでも吹付・塗布することでコンクリート層を形成できる。亜鉛鉄板，鋼板に層状に薄く吹付けると、調湿性があり、しかも表面が珪藻土風となり、内外装のデザイン性を良好にする。しかもこれら亜鉛鉄板，鋼板が大きく変形しても、コンクリート層の剥離・大きなクラックは発生しない。
本発明のコンクリート原料を塗布・吹付け・型込めする前の物材の表面に塗布する接着剤としては、水性又は油性のアクリル樹脂系・ビニル樹脂系又は油性エポキシ樹脂系の接着剤（シーラ，プライマー）が使用できる。
本発明のコンクリート原料の１〜１．５ｍｍ程の吹付厚みで調湿性が発生する。
本発明のコンクリート原料を塗布・吹付けして下地面の上面にコンクリート層を形成させ、この下地面を曲げて変形させると、コンクリート層には肉眼では見えないクラック巾が０．０２〜０．０３ｍｍ程の微細クラックが発生する。コンクリート層の下面は下地面に接着して付着しながら、上方に従って、クラックで開いて下地面の曲がりに追従できるようになる。肉眼では、下地面の大きな曲がりにコンクリート層が一緒に曲がるようにみえる。
本発明が付着する表面材としては、建築の壁下地，鉄板，トタン板，プラスチック板（アクリル製，塩化ビニール製），コンクリート面，モルタル面，木板面があり、可撓性の面と剛性が高い鉄骨・コンクリート面等の場合とがある。
【０００６】
【実施例】
以下、本発明を実施例に基づいて説明する。
本実施例のコンクリート原料の配合比率は下記の通りである。
【０００７】
【表１】

Figure 2004244288
【０００８】
上記表１のコンクリート原料成分を練り水で混練し、亜鉛メッキ鉄板１の表面に、油性のアクリル樹脂製シーラーの接着剤２を１００〜２００ｇ／ｍ２ 程の薄さで塗布し、その上面に上記混練したコンクリート原料を厚さ１．０ｍｍに吹き付けてコンクリート層３を形成し、亜鉛メッキ鉄板１とコンクリート層３の複合板４とする例である。実施例に用いたコンクリート原料と固化させたコンクリートの特性は下記の通りである。
【０００９】
【表２】
Figure 2004244288
【００１０】
又、亜鉛メッキ鉄板１とコンクリート層３の複合板４としての吸水性，放水性（２４時間後）は、下記の表の通りとなった。
【００１１】
【表３】
Figure 2004244288
【００１２】
下地板をボード下地としたときの吸放湿性は、８４．９ｇ／ｍ２ である。
又、曲げ半径５０ｍｍの曲げを複合板与えたときのコンクリート層の微細クラックの発生状態を図２に示している。図１はその曲げの対応を示す説明図である。亜鉛メッキ鉄板１の上面に油性アクリル樹脂系接着剤を薄く塗布し、その接着剤の層の上面に表１のコンクリート原料を１〜１．５ｍｍ厚みに吹き付けてコンクリート層３を形成し、アクリル板１とコンクリート層３の複合板４を作製した。このときの接着強度は０．７Ｎ／ｍｍ２ 程であった。
この複合板４を０〜７５ｍｍの曲げ半径で漸次曲げを大きくするように曲げてコンクリート層３のクラックの発生を観察した。
この結果、５０ｍｍの曲げ半径まで目視できるクラックの発生はなかった。５０ｍｍ程の曲げ半径から０．０２〜０．０３ｍｍ巾のクラック巾の微細クラックの発生が目視できるようになったが、コンクリート層３に強い大きなクラックはなく、又剥離することはなかった。又曲げ荷重を解放して元の平板に戻すと、その微細クラックは閉じてほとんど目視できなくなった。その拡大説明図を図１，２に示している。
このようにこの複合板は曲げ半径５０〜７０ｍｍの曲げに対して微細クラックが発生するが、下地の亜鉛メッキ鉄板１からコンクリート層３の一部・全部が剥離することはなかった。曲げが解かれると微細クラックは閉じてクラックが殆ど分からなくなる状態となる。又、表面は珪藻土風の肌であり、吸水性と吸湿性が高いものであった。これによって、荷重・湿度変化、振動があっても剥離することが少なく、しかも吸湿性による調湿性があり、結露もしにくく、コンクリート層３の熱伝導率もモルタルの１／４程で断熱性もあり、アンモニア・ホルムアルデヒド・ＶＯＣを吸着して空気浄化力も認められた。又下地材が不燃材・難燃材があれば、不燃材・難燃材となりうる。
【００１３】
【発明の効果】
以上の様に、本発明のコンクリート原料及びコンクリート層は珪藻土の特性を失わずにコンクリートにでき、吸湿性・調湿性があり、結露しにくく、空気浄化性・断熱性があり、優れた表面材、壁材とすることができる。又塗布・吹付けた下地部材が変形しても大きなクラックが発生して剥離することがなく、荷重・振動・湿度差が加えられても剥離することがないものにできた。
しかも金属材・プラスチック材の表面によく付着でき、その表面を珪藻土壁風にでき、内外装のデザイン上にも優れたものとなった。
【図面の簡単な説明】
【図１】実施例の複合板の微細クラックの発生を示す説明図である。
【図２】実施例のコンクリート層の微細クラックを示す拡大平面図である。
【符号の説明】
１ 亜鉛メッキ鉄板
２ 接着剤
３ コンクリート層
４ 複合板
５ 微細クラック[0001]
TECHNICAL FIELD OF THE INVENTION
According to the present invention, when kneaded with kneading water and applied, sprayed, molded and solidified, the concrete has humidity control properties, and when applied and sprayed in a thin layer, it has flexibility, and peeling and cracking occur. The present invention relates to a raw material for concrete that is difficult to perform and its utilization technology. In particular, by applying and spraying on the surface of a metal plate or plastic plate, the surface has a diatomaceous earth wall-like humidity control property, and has a flexible surface layer that is difficult to peel off due to temperature fluctuations, external loads and deformation. It is useful as a spray or coating material for flexible plates.
[0002]
[Prior art]
BACKGROUND ART It has long been known that diatomaceous earth is kneaded and applied to an earthen wall material to form a soil wall having humidity control properties, and has long been used as a diatomaceous earth wall. However, the earth wall material had a weak strength as a wall. It is conceivable to mix diatomaceous earth into Portland cement and solidify it to make a concrete body with strength.However, if ordinary Portland cement and sand concrete are used, diatomaceous earth is sealed with the cement component and the humidity control properties of diatomite Was to be lost. Also, when a large amount of diatomaceous earth is added, the concrete strength is also reduced.
Next, the concrete layer mixed with fine aggregate (sand) in Portland cement, kneaded with water, formed into a layer on the surface of a metal plate or a plastic plate and solidified is not flexible, and is hard and deformed and displaced. When the metal plate / plastic plate is deformed due to external load, humidity change, vibration, etc., the concrete layer on the surface generates large cracks and peels off.
[0003]
[Problems to be solved by the invention]
The problem to be solved by the present invention is to solve these conventional problems and to maintain the humidity controllability of diatomaceous earth while having a strength, and even if the adhered surface is considerably deformed or displaced, a large crack is generated. Provided is a concrete raw material capable of forming a flexible moisture-controlling concrete layer on the surface, which can maintain an adhered state without peeling without generation, and a composite board having humidity control and flexibility using the same. is there.
[0004]
[Means for Solving the Problems]
The configuration of the present invention that has solved such a problem includes:
1) Silica sand, diatomaceous earth, and blast furnace slag powder are mixed with alumina cement and Portland cement cement material, silica fume and zirconia are added and mixed with the mixture, and predetermined kneading water is added to form a concrete. Concrete raw material for flexible concrete 2) 0.75 to 10% by weight of alumina cement, 0.1 to 10% by weight of Portland cement, 15 to 45% by weight of silica sand, 10 to 20% by weight of diatomaceous earth, and blast furnace slag powder 5 to 15% by weight, 0.07 to 2.5% by weight of silica fume and 0.0015 to 0.79% by weight of zirconia are mixed, and kneading water is kneaded at 25 to 40% by weight. 3) Concrete raw material for flexible concrete 3) Thinly concrete with the concrete raw material described in 1) or 2) above on the surface of the flexible metal plate coated with an adhesive. 4) A flexible composite plate having a thin concrete layer formed of the concrete raw material described in 1) or 2) above on the surface of the plastic plate coated with an adhesive. On the board.
[0005]
BEST MODE FOR CARRYING OUT THE INVENTION
The range of the practical compounding ratio of the raw material components of the present invention is expressed in terms of% by weight: 0.1 to 10% by weight of alumina cement, 0.1 to 10% by weight of Portland cement, 15 to 45% by weight of silica sand, and diatomaceous earth. 10 to 20% by weight, blast furnace slag powder is 5 to 15% by weight, silica fume is 0.07 to 2.5% by weight, and zirconia is 0.0015 to 0.79% by weight. The preferred range of the compounding ratio is 3.0 to 7.9% by weight of alumina cement, 1 to 5% by weight of Portland cement, 30 to 40% by weight of silica sand, 10 to 15% by weight of diatomaceous earth, blast furnace slag powder. Is 5 to 10% by weight, silica fume is 0.03 to 1.98% by weight, and zirconia is 0.006 to 0.63% by weight. Further, with respect to the compounding in these ranges, 0.1 to 10% by weight, preferably 0.1 to 4% by weight of a powder polymer is practically mixed as an organic admixture, and the thickener is practically used. 0.1 to 1.0% by weight, preferably 0.1 to 0.5% by weight, and organic or inorganic fibers are practically used in an amount of 0.01 to 0.5% by weight, preferably 0.1 to 0.5% by weight. 01 to 0.4% by weight. The kneading water is practically mixed at 25 to 40% by weight, preferably 25 to 35% by weight.
Beyond these practical ranges, the higher the mixing ratio of alumina cement, silica fume, and zirconia, the lower the flexibility, and the lower the ratio, the lower the strength. If the blending range of the Portland cement exceeds the range, cracks occur more frequently, and if the blending range is less, the strength is reduced and the flexibility is reduced. Cracks occur when the mixing ratio of silica sand is low. If the amount of diatomaceous earth is large, the strength is reduced, and if the amount is small, the humidity control property is reduced. When the amount of the organic admixture of the powder polymer is large, the humidity control function is reduced, and when the amount is small, the strength is reduced. If there are too many thickeners, the strength will decrease and the drying time will be slow. If it is less, the pot life will be shorter. If the fiber content is small, cracks are likely to occur, and if the fiber content is large, clogging of the spray gun is liable to occur. If the mixing water is small, spraying becomes difficult, and if it is large, cracks and aggregates are separated.
The concrete raw material of the present invention can form a concrete layer by spraying and applying any of flexible plates made of various materials and members that are not. When sprayed thinly on a galvanized steel sheet or a steel sheet, it has humidity control properties, and the surface has a diatomaceous earth style, which improves the design of the interior and exterior. In addition, even if the zinc iron plate and the steel plate are largely deformed, peeling of the concrete layer and large cracks do not occur.
As the adhesive applied to the surface of the material before the concrete raw material of the present invention is applied, sprayed or molded, an aqueous or oily acrylic resin-based, vinyl resin-based or oil-based epoxy resin-based adhesive (sealer, Primer) can be used.
Humidity control occurs at a spray thickness of about 1 to 1.5 mm of the concrete raw material of the present invention.
When the concrete material of the present invention is applied and sprayed to form a concrete layer on the upper surface of the ground surface, and this ground surface is bent and deformed, the concrete layer has a crack width invisible to the naked eye of 0.02-0. Fine cracks of about 03 mm occur. While the lower surface of the concrete layer adheres to and adheres to the ground surface, it can be opened upward by cracks so as to follow the bending of the ground surface. To the naked eye, the concrete layer appears to bend together with the large bend in the ground.
The surface materials to which the present invention adheres include architectural wall foundations, iron plates, galvanized steel plates, plastic plates (made of acrylic and vinyl chloride), concrete surfaces, mortar surfaces, and wooden plate surfaces. In some cases, such as high steel frames and concrete surfaces.
[0006]
【Example】
Hereinafter, the present invention will be described based on examples.
The mixing ratios of the concrete raw materials of this example are as follows.
[0007]
[Table 1]
Figure 2004244288
[0008]
The above-mentioned concrete raw material components in Table 1 are kneaded with kneading water, and an adhesive 2 of an oil-based acrylic resin sealer is applied on the surface of the galvanized iron plate 1 at a thickness of about 100 to 200 g / m 2 , and on the upper surface thereof This is an example in which a concrete layer 3 is formed by spraying the kneaded concrete raw material to a thickness of 1.0 mm to form a composite plate 4 of a galvanized iron plate 1 and a concrete layer 3. The properties of the concrete raw material used in the examples and the solidified concrete are as follows.
[0009]
[Table 2]
Figure 2004244288
[0010]
The water absorption and water release (after 24 hours) of the composite plate 4 of the galvanized iron plate 1 and the concrete layer 3 are as shown in the following table.
[0011]
[Table 3]
Figure 2004244288
[0012]
The moisture absorption / release property when the base plate is used as the base of the board is 84.9 g / m 2 .
FIG. 2 shows the state of occurrence of fine cracks in the concrete layer when a composite plate is given a bending with a bending radius of 50 mm. FIG. 1 is an explanatory view showing the correspondence of the bending. An oil-based acrylic resin-based adhesive is thinly applied to the upper surface of the galvanized iron plate 1, and the concrete material shown in Table 1 is sprayed on the upper surface of the adhesive layer to a thickness of 1 to 1.5 mm to form a concrete layer 3; A composite plate 4 of 1 and a concrete layer 3 was produced. At this time, the adhesive strength was about 0.7 N / mm 2 .
The composite plate 4 was bent at a bending radius of 0 to 75 mm so as to gradually increase bending, and the occurrence of cracks in the concrete layer 3 was observed.
As a result, no visible crack was generated up to a bending radius of 50 mm. The occurrence of fine cracks having a crack width of 0.02 to 0.03 mm from the bending radius of about 50 mm became visible, but there were no strong large cracks in the concrete layer 3 and there was no peeling. When the bending load was released to return to the original flat plate, the fine cracks were closed and became almost invisible. The enlarged explanatory view is shown in FIGS.
As described above, in this composite plate, fine cracks were generated in bending with a bending radius of 50 to 70 mm, but part or all of the concrete layer 3 was not separated from the zinc-plated iron plate 1 as the base. When the bend is released, the fine cracks close and almost no cracks are found. The surface was diatomaceous earth-like skin, and had high water absorption and hygroscopicity. As a result, there is little peeling even when there is a change in load / humidity or vibration, and there is humidity control due to moisture absorption, hardly dew condensation, heat conductivity of the concrete layer 3 is about 1/4 of mortar and heat insulation is also good. In addition, ammonia, formaldehyde and VOC were adsorbed and the air purification power was also recognized. If the base material is a non-combustible material or a flame-retardant material, it can be a non-combustible material or a flame-retardant material.
[0013]
【The invention's effect】
As described above, the concrete raw material and the concrete layer of the present invention can be made into concrete without losing the characteristics of diatomaceous earth, have hygroscopicity and humidity control properties, hardly dew condensation, have air purification properties and heat insulation properties, and have excellent surface materials. , Wall material. Also, even if the applied / sprayed base member deformed, a large crack was not generated and peeled, and the base member was not peeled even when a load, vibration and humidity difference were applied.
Moreover, it adhered well to the surface of metal and plastic materials, and the surface could be made into a diatomaceous earth wall-like surface, making it an excellent interior and exterior design.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram showing the occurrence of fine cracks in a composite plate of an example.
FIG. 2 is an enlarged plan view showing a fine crack in a concrete layer of an example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Galvanized iron plate 2 Adhesive 3 Concrete layer 4 Composite plate 5 Fine crack

Claims (4)

アルミナセメントとポルトランドセメントとのセメント材に対し珪砂・珪藻土・高炉スラグ粉を混合し、これにシリカヒュームとジルコニアを添加混合し、所定の練り水を加えて混練してコンクリートとする、可撓性コンクリートのコンクリート原料。Silica, diatomaceous earth, blast furnace slag powder is mixed with cement material of alumina cement and Portland cement, silica fume and zirconia are added and mixed, and the mixture is kneaded by adding predetermined kneading water to form concrete. Concrete raw material for concrete. アルミナセメントを０．７５〜１０重量％，ポルトランドセメントを０．１〜１０重量％，珪砂を１５〜４５重量％，珪藻土を１０〜２０重量％，高炉スラグ粉を５〜１５重量％，シリカヒュームを０．０７〜２．５重量％，ジルコニアを０．００１５〜０．７９重量％の割合で混合し、練り水を２５〜４０重量％で混練する、可撓性コンクリートのコンクリート原料。0.75 to 10% by weight of alumina cement, 0.1 to 10% by weight of Portland cement, 15 to 45% by weight of silica sand, 10 to 20% by weight of diatomaceous earth, 5 to 15% by weight of blast furnace slag powder, silica fume , 0.07 to 2.5% by weight of zirconia and 0.0015 to 0.79% by weight of zirconia, and kneading water at 25 to 40% by weight. 可撓性金属板表面に接着剤を塗布した上面に請求項１又は２記載のコンクリート原料でもって薄くコンクリート層を形成させた、可撓性複合板。3. A flexible composite plate having a thin concrete layer formed on the upper surface of a flexible metal plate coated with an adhesive using the concrete raw material according to claim 1 or 2. プラスチック板表面に接着剤を塗布した上面に、請求項１又は２記載のコンクリート原料でもって薄くコンクリート層を形成させた、可撓性複合板。A flexible composite board, wherein a thin concrete layer is formed from the concrete raw material according to claim 1 on an upper surface of the plastic board coated with an adhesive.
JP2003037787A 2003-02-17 2003-02-17 Concrete raw material of flexible concrete, and its use Pending JP2004244288A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100846159B1 (en) * 2007-12-21 2008-07-14 주식회사 승화이엔씨 A composition water soluble polymer for concrete structure section repair and surface recover
CN102229481A (en) * 2011-03-21 2011-11-02 朱奎 Corn grit composite board
GB2624647A (en) * 2022-11-23 2024-05-29 Forticrete Ltd A concrete composition

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100846159B1 (en) * 2007-12-21 2008-07-14 주식회사 승화이엔씨 A composition water soluble polymer for concrete structure section repair and surface recover
CN102229481A (en) * 2011-03-21 2011-11-02 朱奎 Corn grit composite board
GB2624647A (en) * 2022-11-23 2024-05-29 Forticrete Ltd A concrete composition

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