JPH0880522A - Composite molded body of carbonated cured body and manufacture thereof - Google Patents
Composite molded body of carbonated cured body and manufacture thereofInfo
- Publication number
- JPH0880522A JPH0880522A JP25597494A JP25597494A JPH0880522A JP H0880522 A JPH0880522 A JP H0880522A JP 25597494 A JP25597494 A JP 25597494A JP 25597494 A JP25597494 A JP 25597494A JP H0880522 A JPH0880522 A JP H0880522A
- Authority
- JP
- Japan
- Prior art keywords
- molded body
- composite
- wollastonite
- molded
- granular material
- 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
Classifications
-
- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/02—Selection of the hardening environment
- C04B40/0231—Carbon dioxide hardening
-
- 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Toxicology (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Aftertreatments Of Artificial And Natural Stones (AREA)
- Producing Shaped Articles From Materials (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、蒸気養生された軽量気
泡コンクリート（ＡＬＣ）の炭酸硬化体を複合成分とす
る炭酸化硬化体の複合成形体及びその製造法に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite molded product of a carbonation-cured product containing a steam-cured lightweight aerated concrete (ALC) carbonate-cured product as a composite component, and a method for producing the same.
【０００２】[0002]
【従来の技術】従来からＡＬＣの成形体を炭酸化反応に
処する技術は公知である（特公昭５５−２３７８７号公
報の比較例２の欄）。2. Description of the Related Art Conventionally, a technique for subjecting an ALC molded body to a carbonation reaction has been known (column of Comparative Example 2 of JP-B-55-23787).
【０００３】[0003]
【発明が解決しようとする課題】この公知技術を特に工
夫を凝らすことなく実施して炭酸化硬化体を製造してみ
ると、得られた炭酸化硬化体は中性化劣化を引き起こし
て物理的性質が低下したり、色調が変化したりするだけ
でなく、その硬度が総じて低く、その硬化体を建材、特
に床板などに使用してみると、表面に傷が付き易いとい
う問題がある。本発明の課題は、前記問題をカバーでき
る構造のＡＬＣ炭酸硬化体を提供するとともに、その硬
化体を製造するための特定の製造法を提供することにあ
る。When a carbonation-cured product is produced by carrying out this known technique without particular ingenuity, the resulting carbonation-cured product causes physical deterioration due to neutralization. Not only does the property deteriorate and the color tone changes, but the hardness is generally low, and when the cured product is used for building materials, especially floorboards, there is a problem that the surface is easily scratched. An object of the present invention is to provide an ALC carbonic acid cured product having a structure capable of covering the above problems, and to provide a specific production method for producing the cured product.
【０００４】[0004]
【課題を解決するための手段】請求項１の発明は、前記
の課題を解決するために、蒸気養生された軽量気泡コン
クリートの炭酸化硬化体の少なくとも片面にウォラスト
ナイトの炭酸化硬化体を複合してなる炭酸化硬化体の複
合成形体とする。In order to solve the above-mentioned problems, the invention of claim 1 comprises a carbonation-cured body of wollastonite on at least one side of the carbonation-cured body of steam-cured lightweight cellular concrete. A composite molded product of a carbonized and hardened product is obtained.
【０００５】請求項２の発明は、前記の複合成形体を製
造するために、蒸気養生された軽量気泡コンクリートの
含水粉粒体を圧縮成形して板状体を成形した後、その板
状体の少なくとも一方の面上にウォラストナイトの含水
粉粒体を圧縮成形して複合体を成形し、次いでその複合
体を炭酸ガスの存在下で養生するという手段を採用す
る。すなわち、複合体の一構成要素を他の構成要素の成
形に先だって成形するのである。According to a second aspect of the present invention, in order to produce the above-mentioned composite compact, the steam-cured lightweight cellular concrete water-containing powder granules are compression-molded to form a plate-like body, and then the plate-like body is formed. A means of compressing and molding wollastonite-containing powdery particles on at least one surface of the above to form a composite, and then curing the composite in the presence of carbon dioxide gas is adopted. That is, one component of the composite is molded prior to the molding of the other component.
【０００６】請求項３の発明は、軽量気泡コンクリート
の含水粉粒体層の少なくとも一方の面上に、ウォラスト
ナイトの含水粉粒体層を積層し、得られた積層体を圧縮
成形後、炭酸ガスの存在下で養生するという手段を採用
する。すなわち、複合体の構成する二つの要素を同時に
成形しながら複合するのである。According to a third aspect of the present invention, a water-containing granular material layer of wollastonite is laminated on at least one surface of the water-containing granular material layer of lightweight cellular concrete, and the obtained laminate is compression-molded, The method of curing in the presence of carbon dioxide is adopted. That is, the two constituent elements of the composite are simultaneously molded while being composited.
【０００７】[0007]
【作用】請求項１の発明において、ＡＬＣ炭酸硬化体の
少なく片面にウォラストナイトの炭酸化硬化体が複合さ
れているので、ＡＬＣ炭酸硬化体の硬度より高いそれを
有するウォラストナイトの炭酸硬化体でＡＬＣ炭酸硬化
体を保護する。In the invention of claim 1, since the carbonized hardened product of wollastonite is compounded on one side with few ALC hardened carbonized products, the carbonated hardened product of wollastonite having a higher hardness than that of the hardened ALC carbonic acid is formed. Protect ALC carbonated body with body.
【０００８】請求項２の発明においては、複合体の二つ
の構成要素がともに珪酸カルシウムという同種の化合物
を複合させているので両要素が接合し易く、また硬度が
比較的低い一構成要素を成形してからその表面に硬度の
高い他の構成要素を成形するとともに被覆させているの
で、後者が前者に対して厚さ斑なく被覆される。請求項
３の発明では、ＡＬＣ粉粒体とウォラストナイト粉粒体
を圧縮して接触した状態で同時に炭酸ガスの存在下て養
生しているので、両者が強固に接合した複合体ができ
る。According to the second aspect of the present invention, since the two constituent elements of the composite both compound the same kind of compound, calcium silicate, the two elements are easily joined together, and one constituent element having a relatively low hardness is formed. After that, since the other component having high hardness is molded and coated on the surface, the latter is coated on the former without uneven thickness. In the invention of claim 3, since the ALC powder and the wollastonite powder are compressed and brought into contact with each other and cured at the same time in the presence of carbon dioxide gas, a composite body in which the both are firmly bonded can be formed.
【０００９】[0009]
【実施例１】次に、請求項１及び２の発明を具体化した
実施例を図面を参照しながら詳述する。図１に示すよう
に、ダイ１と、そのダイに設けられた角柱状空間からな
るキャビティ２内を油圧ポンブ（図示なし）により上下
動させることができる下部パンチ３と、該下部パンチの
上方においてそれと同様に上下動する上部パンチ６とを
少なくとも備えた圧縮成形機７が用意された。Embodiment 1 Next, an embodiment embodying the invention of claims 1 and 2 will be described in detail with reference to the drawings. As shown in FIG. 1, a die 1 and a lower punch 3 that can be moved up and down by a hydraulic pump (not shown) in a cavity 2 formed of a prismatic space provided in the die and above the lower punch. Similarly, a compression molding machine 7 having at least an upper punch 6 that moves up and down was prepared.
【００１０】下部パンチ３をダイ表面４よりわずか低い
位置で停止させ、下部パンチ３上のキャビティ２に含水
率４５重量％のＡＬＣ粉粒体５をその上面がダイ表面４
と同じレベルになるように充填した。次いで、上部パン
チ６を降下させてＡＬＣ粉粒体５を圧縮成形して、図２
に示す成形体７を成形した。The lower punch 3 is stopped at a position slightly lower than the die surface 4, and the upper surface of the die 2 is covered with ALC powder 5 having a water content of 45% by weight in the cavity 2 on the lower punch 3.
Filled to the same level as. Then, the upper punch 6 is lowered to compression-mold the ALC powder particles 5, and
The molded body 7 shown in was molded.
【００１１】それから下部パンチ２に成形体７を載せた
ままキャビティ２内を降下させて、成形体７上のキャビ
ティ２に含水率１３重量％のウォラストナイト粉粒体８
を前記同様に充填した。そして再び下部パンチ６を降下
させて、成形体７上にウォラストナイト粉粒体８を圧縮
成形して成形体をつくるとともに両者を接合させた。そ
の結果、図３に示す断面を有する複合体１０が得られ
た。すなわちＡＬＣ成形体７の水平な上面にウォラスト
ナイト成形体９が均一な厚みを以て複合されている複合
成形体１０が得られた。Then, while the compact 7 is placed on the lower punch 2, the inside of the cavity 2 is lowered to fill the cavity 2 on the compact 7 with a wollastonite powder 8 having a water content of 13% by weight.
Was filled as above. Then, the lower punch 6 was lowered again, and the wollastonite powder particles 8 were compression-molded on the molded body 7 to form a molded body, and the both were joined. As a result, the composite body 10 having the cross section shown in FIG. 3 was obtained. That is, a composite molded body 10 was obtained in which the wollastonite molded body 9 was composited with a uniform thickness on the horizontal upper surface of the ALC molded body 7.
【００１２】この複合体成形体１０を密閉容器に入れ、
その容器内の空気を約−５０ｍｍＨｇの真空下で脱気し
た後、その容器に炭酸ガスが２気圧になるまで圧入し
た。そして２０〜２８℃の温度下で、前記密閉容器内で
複合成形体１０を約１０時間養生した。養生過程では炭
酸化に伴なう発熱で複合成形体１０の温度は６０〜８０
℃に上昇した。炭酸化が終了した複合成形体１０を１０
５℃で２４時間乾燥することにより粉粒体に混合した水
及び炭酸硬化反応にによって発生した水分が除去され
た。This composite molded body 10 is placed in a closed container,
The air in the container was degassed under a vacuum of about -50 mmHg, and then carbon dioxide gas was pressed into the container until the pressure became 2 atm. Then, at a temperature of 20 to 28 ° C., the composite molded body 10 was cured in the closed container for about 10 hours. In the curing process, the temperature of the composite molded body 10 is 60 to 80 due to the heat generated by carbonation.
Rose to ℃. The composite molded body 10 that has been carbonated is
By drying at 5 ° C. for 24 hours, water mixed in the powder and granules and water generated by the carbonic acid curing reaction were removed.
【００１３】このようにして製造された複合体成形体１
０におけるＡＬＣ成形体７及びワォラストナイト成形体
９の表面硬さをビッカース硬度計で測定したら、前者は
Ｈｖ＝１４．１で、後者は６５．０であった。同じくそ
れらの色調を比較したら、前者はほぼグレーであった
が、後者は白色であった。The composite molded body 1 manufactured in this way
When the surface hardness of the ALC molded body 7 and the wollastonite molded body 9 at 0 were measured with a Vickers hardness meter, the former was Hv = 14.1 and the latter was 65.0. Similarly, when comparing their color tones, the former was almost gray, but the latter was white.
【００１４】[0014]
【実施例２】図１に示す態様と同様に下部パンチ３上の
キャビティ２内に含水ＡＬＣ粉粒体５を層状に充填した
後、下部パンチ３をさらに降下させた。図４に示すよう
に、下部パンチ３上に形成された粉粒体層５ａ上のキャ
ビティ２内にウォラストナイト粉粒体８を充填して、他
の粉粒体層８ａを成形した。それから上部キャビティ６
を降下させて２種の粉粒体層５ａ、８ａを同時に圧縮成
形した。Example 2 Similar to the embodiment shown in FIG. 1, the hydrated ALC powder particles 5 were filled in layers in the cavity 2 on the lower punch 3, and then the lower punch 3 was further lowered. As shown in FIG. 4, the wollastonite powder 8 was filled in the cavity 2 on the powder layer 5a formed on the lower punch 3 to form another powder layer 8a. Then the upper cavity 6
Was lowered to simultaneously perform compression molding of the two types of powder and granular material layers 5a and 8a.
【００１５】このようにして得られた複合成形体１０
は、図５に示すようにＡＬＣ成形体７とウォラストナイ
ト成形体９とからなっていたが、両者の境界１１は凸凹
状をなしていた。このようにして、得られた複合成形体
１０を実施例１に準じて炭酸化反応に処した。炭酸硬化
された複合成形体１０のビッカース硬度及び色調もほぼ
実施例１と同程度のものであったが、両成形体は実施例
１のものより強固に接合していた。The composite molded body 10 thus obtained
5 consisted of an ALC molded body 7 and a wollastonite molded body 9 as shown in FIG. 5, but the boundary 11 between the two was uneven. Thus, the obtained composite molded body 10 was subjected to a carbonation reaction according to Example 1. Although the Vickers hardness and color tone of the carbonic acid-cured composite molded body 10 were almost the same as those in Example 1, both molded bodies were bonded more firmly than in Example 1.
【００１６】本発明は、その根本的技術思想を踏襲して
その硬化を著しく損なわない限度において、前記実施の
態様を一部変更して実施してもよい。例えば、最初にウ
ォラストナイト成形体を製造してその上にＡＬＣ粉粒体
を圧縮成形してもよいし、さらにＡＬＣ成形体の上にウ
ォラストナイトを圧縮成形して３層複合成形体にするこ
ともできる。The present invention may be carried out by partially modifying the above-described embodiment, as long as it does not significantly impair the curing thereof while following the basic technical idea thereof. For example, a wollastonite compact may be manufactured first, and ALC powder particles may be compression-molded thereon, or wollastonite may be compression-molded on the ALC compact to form a three-layer composite compact. You can also do it.
【００１７】本発明の複合成形体は建築分野の床材や壁
材に利用できる。ＡＬＣ炭酸硬化体及びウォラストナイ
ト炭酸硬化体は、吸放湿性能をも有するので、調湿性能
が要求される分野、例えば美術館、建物の結露空間等の
形成する壁面に有効に使用される。The composite molded article of the present invention can be used for flooring materials and wall materials in the field of construction. Since the ALC carbonic acid hardened material and the wollastonite carbonic acid hardened material also have a moisture absorbing / releasing performance, they are effectively used in a field requiring humidity controlling performance, for example, a wall surface formed in a dew condensation space of a museum or a building.
【００１８】[0018]
【発明の効果】以上詳述したように、本請求項１の発明
はＡＬＣ単独の炭酸硬化体の表面硬度を高めたいという
要求を特定の複合構造にして満足させるとともに暗い色
調をカバーするという優れた効果を発揮する。また、請
求項２及び３の発明は前記複合体を製造するのに最適の
方法を提供できるという効果を発揮する。As described in detail above, the invention of claim 1 is excellent in satisfying the requirement for increasing the surface hardness of the carbonic acid cured product of ALC alone with a specific composite structure and covering a dark color tone. Exert the effect. Further, the inventions of claims 2 and 3 exhibit the effect that an optimum method for producing the composite can be provided.
【図１】実施例１の実施態様における前段のプロセスを
説明するための概略部分縦断面図。FIG. 1 is a schematic partial vertical cross-sectional view for explaining a former process in an embodiment of Example 1.
【図２】前記実施態様における後段のプロセスを説明す
るための概略部分縦断面図。FIG. 2 is a schematic partial vertical cross-sectional view for explaining a subsequent process in the embodiment.
【図３】実施例１で得られた複合成形体の断面図。FIG. 3 is a cross-sectional view of the composite molded body obtained in Example 1.
【図４】実施例２の実施態様における後段のプロセスを
説明するための概略部分縦断面図。FIG. 4 is a schematic partial vertical cross-sectional view for explaining a subsequent process in the embodiment of Example 2;
【図５】実施例２で得られた複合成形体の断面図。5 is a cross-sectional view of the composite molded body obtained in Example 2. FIG.
７ ＡＬＣ成形体 ９ ウォラストナイト成形体 １０ 複合成形体 7 ALC molded product 9 Wollastonite molded product 10 Composite molded product
Claims (3)
少なくとも片面にウォラストナイトの炭酸化硬化体を複
合してなる炭酸化硬化体の複合成形体。1. A composite molded product of a carbonation-cured product obtained by compounding a carbonation-cured product of wollastonite on at least one surface of a carbonation-cured product of lightweight cellular concrete.
縮成形して板状の成形体を成形した後、その板状体の少
なくとも一方の面上にウォラストナイトの含水粉粒体を
圧縮成形して複合体を成形し、次いでその複合体を炭酸
ガスの存在下で養生することを特徴とする炭酸化硬化体
の複合成形体の製造法。2. A water-containing powdery granule of lightweight cellular concrete is compression-molded to form a plate-shaped molded body, and then a water-containing powdery granule of wollastonite is compression-molded on at least one surface of the plate-shaped body. And molding the composite, and then curing the composite in the presence of carbon dioxide gas.
少なくとも一方の面上にウォラストナイトの含水粉粒体
層を積層し、得られた積層体を圧縮成形後、炭酸ガスの
存在下で養生することを特徴とする炭酸化硬化体の複合
成形体の製造法。3. A water-containing granular material layer of wollastonite is laminated on at least one surface of the water-containing granular material layer of lightweight cellular concrete, and the obtained laminate is compression-molded in the presence of carbon dioxide gas. A method for producing a composite molded body of a carbonation-cured body characterized by curing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25597494A JP3618123B2 (en) | 1994-09-12 | 1994-09-12 | Composite molded body of carbonated cured body and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25597494A JP3618123B2 (en) | 1994-09-12 | 1994-09-12 | Composite molded body of carbonated cured body and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0880522A true JPH0880522A (en) | 1996-03-26 |
| JP3618123B2 JP3618123B2 (en) | 2005-02-09 |
Family
ID=17286161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25597494A Expired - Fee Related JP3618123B2 (en) | 1994-09-12 | 1994-09-12 | Composite molded body of carbonated cured body and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3618123B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001302295A (en) * | 2000-04-19 | 2001-10-31 | Sekisui Chem Co Ltd | Method of producing inorganic carbonated cured body |
| WO2015002277A1 (en) * | 2013-07-05 | 2015-01-08 | 旭化成建材株式会社 | Inorganic foam panel |
| WO2021046601A1 (en) * | 2019-09-11 | 2021-03-18 | Wall Technologies Pty Ltd | A composite concrete panel formed of an aerated concrete mixture and method of manufacture |
-
1994
- 1994-09-12 JP JP25597494A patent/JP3618123B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001302295A (en) * | 2000-04-19 | 2001-10-31 | Sekisui Chem Co Ltd | Method of producing inorganic carbonated cured body |
| WO2015002277A1 (en) * | 2013-07-05 | 2015-01-08 | 旭化成建材株式会社 | Inorganic foam panel |
| WO2021046601A1 (en) * | 2019-09-11 | 2021-03-18 | Wall Technologies Pty Ltd | A composite concrete panel formed of an aerated concrete mixture and method of manufacture |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3618123B2 (en) | 2005-02-09 |
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