JPH05200719A - Production of inorganic cement panel - Google Patents
Production of inorganic cement panelInfo
- Publication number
- JPH05200719A JPH05200719A JP1254092A JP1254092A JPH05200719A JP H05200719 A JPH05200719 A JP H05200719A JP 1254092 A JP1254092 A JP 1254092A JP 1254092 A JP1254092 A JP 1254092A JP H05200719 A JPH05200719 A JP H05200719A
- Authority
- JP
- Japan
- Prior art keywords
- cement
- molding material
- water
- aggregate
- dry
- 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
- 239000004568 cement Substances 0.000 title claims abstract description 51
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 239000012778 molding material Substances 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 19
- 239000011396 hydraulic cement Substances 0.000 claims abstract description 9
- 238000000465 moulding Methods 0.000 claims abstract description 6
- 239000002002 slurry Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 12
- 238000005507 spraying Methods 0.000 claims description 4
- 239000002344 surface layer Substances 0.000 description 7
- 239000010410 layer Substances 0.000 description 6
- 238000003825 pressing Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 239000000835 fiber Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- -1 polypropylene Polymers 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000011398 Portland cement Substances 0.000 description 2
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 206010016256 fatigue Diseases 0.000 description 2
- 239000010438 granite Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 206010052804 Drug tolerance Diseases 0.000 description 1
- 229920002978 Vinylon Polymers 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000026781 habituation Effects 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、建築用板などとして採
用される無機質セメント板の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing an inorganic cement board used as a building board or the like.
【０００２】[0002]
【従来の技術】従来、水硬性セメントを主材としたセメ
ント系の建築用板を製造する方法としては、湿式法と乾
式法が一般的である。そして、外装材や瓦として使用す
る建築用板はハチェック方式あるいは長網方式で抄造さ
れたり、押出法や注型法により成形され、加圧した後養
生、乾燥、塗装されて製品とされている。2. Description of the Related Art Conventionally, a wet method and a dry method have been generally used as a method for producing a cement-based building board mainly composed of hydraulic cement. The building boards used as exterior materials and roof tiles are manufactured by the Hatschek method or the Fourdrinier method, or formed by the extrusion method or the casting method, and then cured, dried, and painted after pressing to obtain the product. There is.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、従来の
製品は骨材がセメントに覆われ、外観はセメント色で材
質感がないという問題があった。このため、養生後、洗
い出し工程を設けて洗い出す方法も考えられるが、大量
のアルカリ水が出てしまうものであり、又、ブラッシン
グも容易にはできないものである。However, the conventional products have a problem that the aggregate is covered with cement and the appearance is cement color and there is no feeling of material. For this reason, a method of washing out after the curing by providing a washing step is conceivable, but a large amount of alkaline water is discharged and brushing cannot be easily performed.
【０００４】本発明は上記課題を解決するためになされ
たものであり、その目的とするところは、骨材を表面に
露出させて材質感に優れた無機質セメント板を製造する
ことにある。The present invention has been made to solve the above problems, and an object of the present invention is to expose an aggregate on the surface to produce an inorganic cement board having an excellent texture.
【０００５】[0005]
【課題を解決するための手段】本発明の無機質セメント
板の製造方法は、水硬性セメントと水とを主成分とする
スラリーから成形した湿式の基材１上に水硬性セメント
を主成分とする乾式乃至は半乾式のセメント成形材料２
を散布し、次いで加圧成形し、加圧後セメントの硬化が
始まる前に表面に水を散布してセメント成形材料２に配
合された骨材３を表面に露出させ、この後養生硬化させ
ることを特徴とするものであり、この構成により上記技
術的課題が解決されたものである。According to the method for producing an inorganic cement board of the present invention, a hydraulic cement is the main component on a wet base material 1 formed from a slurry containing hydraulic cement and water as the main components. Dry or semi-dry cement molding material 2
And then pressure-molding, and after the pressure is applied, water is sprayed on the surface before the hardening of the cement is started to expose the aggregate 3 mixed in the cement-molding material 2 to the surface, and then curing and hardening is performed. The above-mentioned technical problem is solved by this configuration.
【０００６】[0006]
【作用】加圧後セメントの硬化が始まる前に表面に水を
散布してセメント成形材料２に配合された骨材３を表面
に露出させるので、露出した骨材３により材質感を高め
ることができるものであり、又、加圧後養生前に洗い出
すので、アルカリ水の発生もなく、更に、洗い出された
セメント成分は骨材３の下部にセメントリッチ層２ａを
形成し、骨材の付着性が向上して強固な表層構造が得ら
れるものである。[Function] Since the aggregate 3 mixed in the cement molding material 2 is exposed to the surface by spraying water on the surface after the pressure is applied and before the hardening of the cement is started, the texture of the exposed aggregate 3 can be enhanced. Moreover, since it is washed out after pressurization and before curing, no alkaline water is generated, and the washed-out cement component forms a cement-rich layer 2a under the aggregate 3 and adheres the aggregate. The property is improved and a strong surface layer structure is obtained.
【０００７】以下、本発明を添付の図面を参照して詳細
に説明する。本発明における湿式の基材１は、例えば、
ハチェック方式あるいは長網方式により抄造されるもの
であり、スラリーは水硬性セメントを主体として補強用
繊維類などが配合されたものであればよく、特にその組
成は限定されるものではない。Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. The wet base material 1 in the present invention is, for example,
The slurry may be produced by the Hatschek method or the Fourdrinier method, and the slurry may be any one as long as it is a mixture of hydraulic cement and reinforcing fibers, and the composition thereof is not particularly limited.
【０００８】本発明にあっては、基材１上に乾式乃至は
半乾式のセメント成形材料２を散布するのであるが、こ
の場合、基材１の含水率は５０〜１５０％である。この
基材１の含水率はセメント成形材料２の散布厚みと密接
な関係があり、散布厚みが大きい程含水率を高くするの
が好ましい。又、アクリル系樹脂の配合量は２０重量％
以下、好ましくは５〜１０重量％である。In the present invention, the dry or semi-dry cement molding material 2 is sprayed on the base material 1. In this case, the water content of the base material 1 is 50 to 150%. The water content of the base material 1 is closely related to the spray thickness of the cement molding material 2, and it is preferable to increase the water content as the spray thickness increases. The acrylic resin content is 20% by weight.
Below, it is preferably 5 to 10% by weight.
【０００９】基材１に散布するセメント成形材料２は水
硬性セメントにビニロン、ポリプロピレン等の繊維、パ
ルプ、さらに骨材３を配合したものである。骨材３とし
てはシラスバルーン、パーライト等の軽量骨材とか花崗
岩砕石、安山岩砕石等の砕骨材、コンクリートあるいは
軽量コンクリート、また色の変化しないレンガ粉砕品、
瓦粉砕品、シャモット等の骨材のいずれをも使用でき
る。セメント成形材料２は乾式乃至は半乾式、即ち、含
水率が５０％以下に調整される。例えば、この成形材料
２は図２に示すように乾式混合機４により混合される。
乾式混合機４としてはアイリッヒミキサー、ハイスピー
ドミキサー等が用いられる。次いで定量供給機５により
湿式混合機６へ定量供給され、湿式混合機６内に矢印で
示されえるように水が加えられる。水はセメント成形材
料２の固形分に対して０〜５０重量％である。加える水
の量に巾があるのは、配合組成により異ならせるためで
ある。即ち、加える水の量の下限はセメント成形材料２
を散布する際に粉塵が発生しない範囲であり、上限は加
圧時にセメント成形材料２が流れて凹凸模様等の奇麗な
加圧面が形成されないことが防止される範囲である。
又、吸水性のため骨材３の種類によっても変わり、例え
ば、蛇紋岩砕石を使用した場合、１３重量％以下が好ま
しく、それ以上加えるとセメント成形材料２が粒状とな
り、製品に粒界となって現れ、耐凍害性等の品質が劣化
してしまう。湿式混合機６により所定の含水率に調整さ
れたセメント成形材料２は材料供給機７により巾方向分
配装置８へ供給される。巾方向分配装置８により、巾方
向（最大１６００ｍｍ巾）に略均等に分配されたセメン
ト成形材料２は振動フィーダー９にてさらに均一に馴ら
されて基材１上に散布されるのである。この場合、繊維
等の混入量が多くてダマになりやすいセメント成形材料
２を使用する場合は、ほぐし機１０を通過させた後散布
する。又、必要に応じて馴らし機１１により馴らした
り、押さえロール１２により押さえて、加圧成形時のセ
メント成形材料の飛散を防止するために予備押さえが行
われる。The cement molding material 2 to be sprayed on the base material 1 is a mixture of hydraulic cement, fibers such as vinylon and polypropylene, pulp, and an aggregate 3. As the aggregate 3, lightweight aggregates such as shirasu balloon and perlite, crushed aggregates such as crushed granite and crushed andesite, concrete or lightweight concrete, and crushed bricks whose color does not change,
Any of tile crushed products and aggregates such as chamotte can be used. The cement molding material 2 is a dry type or a semi-dry type, that is, the water content is adjusted to 50% or less. For example, the molding material 2 is mixed by a dry mixer 4 as shown in FIG.
As the dry mixer 4, an Erich mixer, a high speed mixer or the like is used. Then, a fixed amount is supplied to the wet mixer 6 by the constant amount feeder 5, and water is added into the wet mixer 6 as indicated by an arrow. Water is 0 to 50% by weight based on the solid content of the cement molding material 2. The reason why the amount of water added varies is that it varies depending on the composition. That is, the lower limit of the amount of water to be added is the cement molding material 2
Is a range in which dust is not generated during spraying, and the upper limit is a range in which the cement molding material 2 is prevented from flowing during pressurization and a clean pressurizing surface such as an uneven pattern is not formed.
It also varies depending on the type of the aggregate 3 due to its water absorbability. For example, when crushed serpentine is used, the content is preferably 13% by weight or less. Appears and the quality such as frost resistance is deteriorated. The cement molding material 2 adjusted to a predetermined water content by the wet mixer 6 is supplied to the widthwise distribution device 8 by the material supply device 7. The cement molding material 2 substantially evenly distributed in the width direction (maximum width of 1600 mm) by the width direction distribution device 8 is further evenly conditioned by the vibrating feeder 9 and scattered on the base material 1. In this case, when using the cement molding material 2 in which a large amount of fibers and the like are liable to become lumps, the cement molding material 2 is sprayed after passing through the disentangling machine 10. In addition, if necessary, it is conditioned by a habituation machine 11 or pressed by a pressing roll 12 to perform preliminary pressing in order to prevent scattering of the cement molding material during pressure molding.
【００１０】このようにして基材１上にセメント成形材
料２を連続的に散布した後、水圧により所定の寸法に切
断され、次いで、上型１３ａと下型１３ｂとからなるプ
レス機１３によりバッチ式で加圧成形する。加圧後、水
をスプレー等で表面に散布して骨材３を露出させる。こ
の後養生硬化させて図１に示すように骨材３が露出した
無機質セメント板Ａが製造される。After the cement molding material 2 is continuously sprayed on the base material 1 in this way, it is cut into a predetermined size by hydraulic pressure, and then batched by a press machine 13 comprising an upper mold 13a and a lower mold 13b. Formulated by pressure. After pressing, water is sprayed on the surface to expose the aggregate 3. After that, it is cured and cured to manufacture the inorganic cement board A in which the aggregate 3 is exposed as shown in FIG.
【００１１】このように本発明によれば、抄造で連続生
産している基材１の上に自由にセメント成形材料２を散
布することができ、又、加圧成形の際に下層の基材１の
水分が上層のセメント成形材料２に移動するため、全体
としての含水率は低くなり、乾燥に要するエネルギーが
少なくてすむ。又、加圧成形の際に下層の基材１の水分
が上層のセメント成形材料２に移動するため、全体とし
ての含水率は低くなり、乾燥に要するエネルギーが少な
くてすむ。As described above, according to the present invention, the cement molding material 2 can be freely dispersed on the base material 1 continuously produced by papermaking, and the base material of the lower layer at the time of pressure molding. Since the water content of 1 moves to the cement molding material 2 in the upper layer, the water content as a whole becomes low, and the energy required for drying can be small. In addition, since the water content of the base material 1 in the lower layer moves to the cement molding material 2 in the upper layer during pressure molding, the water content as a whole becomes low, and the energy required for drying can be small.
【００１２】次に、本発明の実施例を具体的に説明す
る。以下において％とあるのは重量％を示す。 （実施例１）長網方式で抄造した基材上にポルトランド
セメント５０％、御影石５０％、水１０％を配合したセ
メント成形材料を３４００ｇｒ／ｍ2 散布して圧力２８
ｋｇ／ｃｍ2 で２秒間プレスした直後に水をスプレーで
表面に１６０〜１０００ｇ／ｍ2 程度散水し、この後８
０℃で１６Ｈｒ養生し、乾燥して製品とした。Next, an embodiment of the present invention will be specifically described. In the following,% means% by weight. (Example 1) A cement molding material containing 50% Portland cement, 50% granite, and 10% water was sprayed on a substrate made by the Fourdrinier method at 3400 gr / m 2 and a pressure of 28 was applied.
Immediately after pressing at kg / cm 2 for 2 seconds, water is sprayed onto the surface of about 160 to 1000 g / m 2 and then 8
It was cured at 0 ° C. for 16 hours and dried to obtain a product.
【００１３】製品の表層厚み２ｍｍ、表層比重１．７で
あった。 （実施例２）ポルトランドセメント１７％、白セメント
１７％、赤シャモット６６％、ポリプロピレン繊維１
％、水１５％を配合したセメント成形材料を８０００ｇ
／ｍ2 散布した以外は実施例１と同様にして製品を製造
した。The product had a surface layer thickness of 2 mm and a surface layer specific gravity of 1.7. (Example 2) Portland cement 17%, white cement 17%, red chamotte 66%, polypropylene fiber 1
%, 15% water mixed cement molding material 8000g
/ M 2 except for the spraying were prepared product in the same manner as in Example 1.
【００１４】製品の表層厚み５ｍｍ、表層比重１．６で
あった。 （実施例３）白セメント２５％、蛇紋岩砕石７５％、水
１３％を配合したセメント成形材料を３８００ｇ／ｍ2
散布した以外は実施例１と同様にして製品を製造した。
製品の表層厚み２ｍｍ、表層比重１．９であった。The surface layer thickness of the product was 5 mm and the surface layer specific gravity was 1.6. Example 3 A cement molding material containing 25% white cement, 75% serpentine crushed stone, and 13% water was mixed at 3800 g / m 2.
A product was produced in the same manner as in Example 1 except that the product was sprayed.
The surface layer thickness of the product was 2 mm and the surface layer specific gravity was 1.9.
【００１５】いずれの実施例の製品も表面に骨材が露出
して材質感に富んだものであった。In each of the products of the examples, the aggregate was exposed on the surface, and the product had a good texture.
【００１６】[0016]
【発明の効果】本発明にあっては、加圧後セメントの硬
化が始まる前に表面に水を散布してセメント成形材料に
配合された骨材を表面に露出させるので、露出した骨材
により材質感を高めることができるものであり、又、加
圧後養生前に洗い出すので、アルカリ水の発生もなく、
更に、洗い出されたセメント成分は骨材の下部にセメン
トリッチ層を形成し、骨材の付着性が向上して強固な表
面構造が得られるものである。EFFECTS OF THE INVENTION According to the present invention, since water is sprayed on the surface before the hardening of cement after pressurization to expose the aggregate mixed in the cement molding material to the surface, It can enhance the texture, and since it is washed out after pressure and before curing, there is no generation of alkaline water,
Further, the washed-out cement component forms a cement-rich layer in the lower part of the aggregate, which improves the adhesiveness of the aggregate and provides a strong surface structure.
【図１】本発明の方法により製造されたセメント製品の
一例を示す一部省略概略図である。FIG. 1 is a partially omitted schematic view showing an example of a cement product manufactured by the method of the present invention.
【図２】本発明におけるセメント成形材料の散布工程を
実施するための装置を示す概略図である。FIG. 2 is a schematic view showing an apparatus for carrying out a dispersion process of a cement molding material according to the present invention.
【図３】本発明における加圧工程を実施するための装置
を示す概略図である。FIG. 3 is a schematic view showing an apparatus for carrying out a pressurizing step in the present invention.
Ａ 無機質セメント板 １ 基材 ２ セメント成形材料 ３ 骨材 A Inorganic cement board 1 Base material 2 Cement molding material 3 Aggregate
Claims (1)
リーから成形した湿式の基材上に水硬性セメントを主成
分とする乾式乃至は半乾式のセメント成形材料を散布
し、次いで加圧成形し、加圧後セメントの硬化が始まる
前に表面に水を散布してセメント成形材料に配合された
骨材を表面に露出させ、この後養生硬化させることを特
徴とする無機質セメント板の製造方法。1. A dry or semi-dry cement molding material containing hydraulic cement as a main component is sprayed onto a wet base material formed from a slurry containing hydraulic cement and water as main components, and then pressed. Manufacture of an inorganic cement board, which is characterized by spraying water on the surface after molding and before hardening of the cement begins to expose the aggregate compounded in the cement molding material on the surface, and then curing and hardening. Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04012540A JP3090367B2 (en) | 1992-01-28 | 1992-01-28 | Manufacturing method of inorganic cement board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04012540A JP3090367B2 (en) | 1992-01-28 | 1992-01-28 | Manufacturing method of inorganic cement board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05200719A true JPH05200719A (en) | 1993-08-10 |
| JP3090367B2 JP3090367B2 (en) | 2000-09-18 |
Family
ID=11808164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04012540A Expired - Lifetime JP3090367B2 (en) | 1992-01-28 | 1992-01-28 | Manufacturing method of inorganic cement board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3090367B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015226984A (en) * | 2014-05-30 | 2015-12-17 | 株式会社ユニソン | Method and system for manufacturing concrete block |
| CN121473540A (en) * | 2026-01-09 | 2026-02-06 | 中联重科新材料科技有限公司 | A construction method for wear-resistant flooring |
-
1992
- 1992-01-28 JP JP04012540A patent/JP3090367B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015226984A (en) * | 2014-05-30 | 2015-12-17 | 株式会社ユニソン | Method and system for manufacturing concrete block |
| CN121473540A (en) * | 2026-01-09 | 2026-02-06 | 中联重科新材料科技有限公司 | A construction method for wear-resistant flooring |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3090367B2 (en) | 2000-09-18 |
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