JPH0725581B2 - Method for manufacturing colored cement board - Google Patents
Method for manufacturing colored cement boardInfo
- Publication number
- JPH0725581B2 JPH0725581B2 JP2316305A JP31630590A JPH0725581B2 JP H0725581 B2 JPH0725581 B2 JP H0725581B2 JP 2316305 A JP2316305 A JP 2316305A JP 31630590 A JP31630590 A JP 31630590A JP H0725581 B2 JPH0725581 B2 JP H0725581B2
- Authority
- JP
- Japan
- Prior art keywords
- cement
- pigment
- cement board
- weight
- colored
- 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.)
- Expired - Fee Related
Links
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は例えば屋根材等の外装材として用いられる着色
セメント板の製造方法に関するものである。The present invention relates to a method for producing a colored cement board used as an exterior material such as a roof material.
屋根材等の外装材にはセメント板が用いられているが、
該セメント板は着色されることが多い。Cement boards are used for exterior materials such as roofing materials,
The cement board is often colored.
従来、着色セメント板を製造する方法としてはセメント
板表面に塗料を塗布する方法（特開平２−212379号）が
提供されているが、この方法ではセメント板表面の塗料
層が外的要因または経時的劣化により剥離し易く、また
セメント板の表面のみが着色され、切断すると着色され
ていない小口が露出して外観上問題となっている。Conventionally, as a method for producing a colored cement board, a method of applying a paint to the surface of the cement board has been provided (JP-A-2-212379). However, in this method, the paint layer on the surface of the cement board is an external factor or aged. It is easy to peel off due to mechanical deterioration, and only the surface of the cement plate is colored, and when cut, the uncolored edge is exposed, which is a problem in appearance.
そこで最近ではセメントスラリー中に顔料を混合した上
で成形硬化させる方法が提案されている（特開平２−22
5753号）。この方法によればセメント板は全体的に着色
されるので、塗料層の剥離と云う問題は解決され、また
切断により露出する小口にも表面と同様な着色が施され
ているので外観上望ましいものとなる。Therefore, recently, a method has been proposed in which a pigment is mixed in cement slurry and then the mixture is molded and cured (Japanese Patent Laid-Open No. 22-22 / 1990).
No. 5753). According to this method, the cement board is entirely colored, so the problem of peeling of the paint layer is solved, and the edge exposed by cutting is also colored in the same way as the surface, which is desirable for appearance. Becomes
しかしながら上記従来の方法では顔料がセメントスラリ
ー中へ均一に分散しにくいために色むらを生じ、また着
色度が低いと云う重大な問題がある。However, the above-mentioned conventional methods have a serious problem in that the pigment is difficult to be uniformly dispersed in the cement slurry, so that color unevenness occurs and the degree of coloring is low.
本発明は上記従来の課題を解決するための手段として、
顔料を界面活性剤とともに分散させたセメントスラリー
を抄造脱水成形した後硬化せしめる着色セメント板の製
造方法を提供するものである。The present invention, as a means for solving the above conventional problems,
It is intended to provide a method for producing a colored cement board in which a cement slurry in which a pigment is dispersed together with a surfactant is subjected to paper-making dehydration molding and then cured.
本発明を以下に詳細に説明する。The present invention is described in detail below.
［セメントスラリー］ 本発明に用いられるセメントスラリーは、セメントにケ
イ砂、膨張頁岩、膨張粘土、焼フライアッシュ、硬質火
山れき、軟質火山れき等の骨材、パルプ、木片等の木質
繊維、水酸化カルシウム、水酸化マグネシウム、アルミ
ン酸ソーダ等の硬化促進剤等を混合して水と混練して調
製される。通常該セメントと該骨材との混合比率は重量
比で70:30〜30:70、望ましくは60:40〜40:60程度とさ
れ、木質繊維を添加する場合は該木質繊維をセメントと
骨材との混合物中に４〜７重量％、望ましくは５〜６重
量％程度添加する。[Cement Slurry] The cement slurry used in the present invention is an aggregate such as silica sand, expanded shale, expanded clay, baked fly ash, hard volcanic gravel, soft volcanic gravel, etc., cement, wood fiber such as pulp, wood chips, etc. It is prepared by mixing a curing accelerator such as calcium, magnesium hydroxide or sodium aluminate and kneading with water. Usually, the mixing ratio of the cement and the aggregate is 70:30 to 30:70 by weight, preferably about 60:40 to 40:60, and when the wood fiber is added, the wood fiber is mixed with the cement and the bone. 4 to 7% by weight, preferably 5 to 6% by weight, is added to the mixture with the material.
［顔料］ 本発明に用いられる顔料は塗料、インキ等に用いられる
通常のものでよく、例えばカーボン、あるいは該カーボ
ンを造粒したカーボンブラック、クロムイエロー、ベン
ガラ等が例示され、特に屋根材としては黒色のカーボン
あるいはカーボンブラックが多用せられ、望ましくは造
粒剤等が添加されていないカーボンブラック造粒前のカ
ーボンが黒色顔料として用いられる。[Pigment] The pigment used in the present invention may be a usual pigment used in paints, inks and the like, and examples thereof include carbon, carbon black obtained by granulating the carbon, chrome yellow, red iron oxide and the like, and particularly as a roofing material. Black carbon or carbon black is often used, and preferably carbon before granulation of carbon black to which no granulating agent or the like is added is used as a black pigment.
上記顔料は通常上記セメントと骨材との混合物中に0.02
5〜2.250重量％程度添加される。The pigment is usually 0.02 in the mixture of cement and aggregate.
5 to 2.250 wt% is added.
［界面活性剤］ 本発明に用いられる界面活性剤は例えばアニオン性のも
の、ノニオン性のもの、カチオン性のもののいずれも用
いられ、例えばアニオン性のものとして高級アルコール
サルフェート（Na塩またはアミン塩）、アルキルアリル
スルフォン酸塩（Na塩）、アルキルナフタレンスルフォ
ン酸塩、ナフタレンスルフォン酸縮合物、アルキルフォ
スフェート、ジアルキルスルフォサクシネート、ロジン
石けん、ノニオン性のものとしてポリオキシエチレンア
ルキルエーテル、ポリオキシエチレンアルキルフェノー
ルエーテル、ポリオキシエチレンアルキルエステル、ポ
リオキシエチレンアルキルアミン、ポリオキシエチレン
アルキルアマイド、ソルビタンアルキルエステル、ポリ
オキシエチレンソルビタンアルキルエステル、カチオン
性のものとしてトリメチルアミノエチルアルキルアミド
ハロゲニド、アルキルピリジニウム硫酸塩、アルキルト
リメチルアンモニウムハロゲニド等がある。上記例示も
また本発明を限定するものではない。[Surfactant] As the surfactant used in the present invention, for example, any of anionic, nonionic and cationic surfactants may be used. For example, higher alcohol sulfate (Na salt or amine salt) may be used as anionic. , Alkyl allyl sulfonate (Na salt), alkyl naphthalene sulfonate, naphthalene sulfonic acid condensate, alkyl phosphate, dialkyl sulfosuccinate, rosin soap, nonionic polyoxyethylene alkyl ether, polyoxyethylene Alkylphenol ether, polyoxyethylene alkyl ester, polyoxyethylene alkyl amine, polyoxyethylene alkyl amide, sorbitan alkyl ester, polyoxyethylene sorbitan alkyl ester, cationic Trimethyl aminoethyl alkylamide halogenide as objects, alkyl pyridinium sulfate, alkyl trimethyl ammonium halides, and the like. The above examples also do not limit the present invention.
上記界面活性剤は通常上記顔料に対して２〜25重量％程
度添加される。The surfactant is usually added in an amount of about 2 to 25% by weight based on the pigment.
［調合］ 本発明においては上記セメントスラリーに上記顔料を界
面活性剤とともに添加分散する場合の望ましい方法とし
ては、上記顔料を上記界面活性剤を溶解した水中に分散
させてまず顔料分散液を調製し、次いで該顔料分散液を
上記セメントスラリーに添加する。この場合上記顔料分
散液は通常顔料含有量を５〜15重量％程度とする。しか
しながら本発明においては上記界面活性剤と顔料とをセ
メントスラリーに直接添加してもよい。[Preparation] In the present invention, as a desirable method for adding and dispersing the pigment together with the surfactant in the cement slurry, the pigment is first dispersed in water in which the surfactant is dissolved to prepare a pigment dispersion liquid. Then, the pigment dispersion is added to the cement slurry. In this case, the pigment dispersion usually has a pigment content of about 5 to 15% by weight. However, in the present invention, the above surfactant and pigment may be added directly to the cement slurry.
［着色セメント板の製造］ 本発明の着色セメント板を製造するには、上記のように
して調製した顔料添加セメントスラリーをハチェック抄
造機等の抄造機により抄造しかつ脱水し、その後所望な
ればプレス成形した後養生硬化させる。養生を完全かつ
短時間に行うにはオートクレーブ養生が推奨される。上
記オートクレーブ養生は通常150〜200℃で５〜15時間程
度行われる。[Manufacture of Colored Cement Board] In order to manufacture the colored cement board of the present invention, the pigment-added cement slurry prepared as described above is made into paper by a paper making machine such as a Hatsche paper making machine and dehydrated, and then if desired. After press molding, it is cured and cured. Autoclave curing is recommended for complete and short curing. The autoclave curing is usually performed at 150 to 200 ° C. for about 5 to 15 hours.
本発明においては、セメントスラリー中に界面活性剤が
存在するから、顔料は該セメントスラリー中に均一に分
散する。そして該界面活性剤は該セメントスラリーの抄
造脱水成形工程において殆ど流出するからセメントの硬
化を殆ど妨害しない。In the present invention, since the surfactant is present in the cement slurry, the pigment is uniformly dispersed in the cement slurry. Since the surfactant almost flows out in the papermaking dehydration molding step of the cement slurry, it hardly interferes with the hardening of the cement.
したがって本発明においては、内部まで均一に着色した
セメント板が得られ、該セメント板の硬化は円滑に行わ
れるから強度も大きいものとなる。Therefore, according to the present invention, a cement board uniformly colored up to the inside can be obtained, and the hardening of the cement board can be carried out smoothly, so that the strength is also high.
下記の処方の顔料分散液を調製した。 A pigment dispersion having the following formulation was prepared.
カーボン（抄造前） 10重量％ ラウリルナフタレンスルフォン酸ソーダ８重量％／カー
ボン 水 残余 下記の処方のセメントスラリーを調製した。Carbon (before papermaking) 10% by weight Sodium laurylnaphthalene sulfonate 8% by weight / carbon water Residue A cement slurry having the following formulation was prepared.
ポルトランドセメント 42.5重量％ ケイ砂 42.5重量％ パルプ 4.5重量％ 水酸化マグネシウム 10.5重量％ スラリー濃度 10 重量％ 上記顔料分散液１重量部を上記セメントスラリー100重
量部に添加し充分混合してからハチェック式抄造機にて
抄造脱水してシート状に予備成形する。上記抄造中にラ
ウリルナフタレンスルフォン酸ソーダは殆ど流出する。
上記シート状の予備成形物は150kg/cm2の圧力で所定の
屋根材形状にプレス成形し、次いで180℃、10時間のオ
ートクレーブ養生を行なって内部まで均一に黒色に着色
された屋根材を得た。Portland cement 42.5% by weight Quartz sand 42.5% by weight Pulp 4.5% by weight Magnesium hydroxide 10.5% by weight Slurry concentration 10% by weight Add 1 part by weight of the above pigment dispersion to 100 parts by weight of the above cement slurry and mix well, then check the Hasek formula Papermaking is dehydrated by a papermaking machine and preformed into a sheet. Almost all the sodium lauryl naphthalene sulfonate is spilled during the above papermaking.
The above sheet-shaped preform is press-formed into a predetermined roof material shape at a pressure of 150 kg / cm 2 , and then autoclave-cured at 180 ° C. for 10 hours to obtain a roof material uniformly colored black inside. It was
フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０４Ｂ 16:02 Ｚ 22:06） Ｚ Continuation of front page (51) Int.Cl. 6 Identification code Office reference number FI technical display area C04B 16:02 Z 22:06) Z
Claims (1)
ントスラリーを抄造脱水成形した後硬化せしめることを
特徴とする着色セメント板の製造方法1. A method for producing a colored cement board, characterized in that a cement slurry in which a pigment is dispersed together with a surfactant is subjected to paper-making dehydration molding and then cured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2316305A JPH0725581B2 (en) | 1990-11-20 | 1990-11-20 | Method for manufacturing colored cement board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2316305A JPH0725581B2 (en) | 1990-11-20 | 1990-11-20 | Method for manufacturing colored cement board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04187553A JPH04187553A (en) | 1992-07-06 |
| JPH0725581B2 true JPH0725581B2 (en) | 1995-03-22 |
Family
ID=18075650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2316305A Expired - Fee Related JPH0725581B2 (en) | 1990-11-20 | 1990-11-20 | Method for manufacturing colored cement board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0725581B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4549450B2 (en) * | 1998-08-26 | 2010-09-22 | 太平洋セメント株式会社 | Cement composition |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3619363A1 (en) * | 1986-06-09 | 1987-12-10 | Brockhues Chem Werke Ag | METHOD FOR COLORING CONCRETE |
-
1990
- 1990-11-20 JP JP2316305A patent/JPH0725581B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04187553A (en) | 1992-07-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |