JPH0469596B2 - - Google Patents

Info

Publication number
JPH0469596B2
JPH0469596B2 JP12136387A JP12136387A JPH0469596B2 JP H0469596 B2 JPH0469596 B2 JP H0469596B2 JP 12136387 A JP12136387 A JP 12136387A JP 12136387 A JP12136387 A JP 12136387A JP H0469596 B2 JPH0469596 B2 JP H0469596B2
Authority
JP
Japan
Prior art keywords
glaze
glaze layer
layer
cement
thermal expansion
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
Application number
JP12136387A
Other languages
Japanese (ja)
Other versions
JPS63288981A (en
Inventor
Yoshihiko Kojika
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP12136387A priority Critical patent/JPS63288981A/en
Publication of JPS63288981A publication Critical patent/JPS63288981A/en
Publication of JPH0469596B2 publication Critical patent/JPH0469596B2/ja
Granted legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50Coating 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
    • C04B41/5022Coating 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 vitreous materials

Description

【発明の詳細な説明】 この発明はセラミツクコーテイングセメント製
品の一種として知られている施釉セメント製品の
製造方法に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a glazed cement product, which is known as a type of ceramic coated cement product.

(従来技術) 従来、施釉セメント製品は型枠等を用いて所定
の形状に形成されたセメント基材層上に釉薬を塗
布し、その後650℃〜900℃で焼成して製造されて
いる。
(Prior Art) Glazed cement products have conventionally been manufactured by applying a glaze onto a cement base layer formed into a predetermined shape using a mold or the like, and then firing the cement at 650°C to 900°C.

(発明が解決しようとする問題点) しかしながら、施釉セメント製品は上記のよう
に650℃〜900℃の低温で焼成されるものであるた
め、焼成後の釉薬層の表面に光沢が出る。
(Problems to be Solved by the Invention) However, since the glazed cement product is fired at a low temperature of 650°C to 900°C as described above, the surface of the glaze layer after firing becomes glossy.

周知のように、施釉セメント製品は建築物の外
壁のような人の目に触れる構造材としての用途を
有しており、この用途に利用された場合には光沢
が有ると自動車のライトを反射したりして眩しい
ため、一般の陶磁器にみられるような約1300℃以
上の高温焼成で得られる光沢が少なくスリガラス
状の所謂マツト釉のような外観を有する施釉セメ
ント製品が要望されていた。
As is well known, glazed cement products are used as structural materials that are visible to people, such as the exterior walls of buildings, and when used for this purpose, their gloss reflects car lights. Because of this, there was a demand for glazed cement products that had a frosted glass-like appearance with less luster and a so-called pine glaze appearance, which is obtained by firing at a high temperature of about 1,300°C or higher, as is the case with ordinary ceramics.

(問題点を解決するための手段) 上記従来技術の欠点に鑑み、本発明はマツト釉
のように光沢の少ない外観の釉薬層を備えた施釉
セメント製品の製造方法の提供を目的とするする
もので、この目的は焼成後の釉薬層の表面をサン
ドブラスト処理することにより達成される。
(Means for Solving the Problems) In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a method for manufacturing a glazed cement product having a glaze layer with a low gloss appearance like pine glaze. This objective is achieved by sandblasting the surface of the glaze layer after firing.

(作用) 本発明は釉薬層の表面をサンドブラスト処理す
るものであるから、釉薬層の表面に微細な凹凸が
出来、このため釉薬層の表面に当つた光が乱反射
することとなる。
(Function) Since the present invention sandblasts the surface of the glaze layer, fine irregularities are formed on the surface of the glaze layer, which causes the light hitting the surface of the glaze layer to be diffusely reflected.

(実施例) 次にこの発明の一実施例を施釉セメント製品の
製造工程に従い、添付の図面を参照しつつ説明す
る。
(Example) Next, an example of the present invention will be described according to the manufacturing process of a glazed cement product with reference to the attached drawings.

A セメント基材層の準備 下記組成の混合物を混練後1m×1m×4mmの型
枠に流し込み24時間室中放置後脱型し、乾燥して
平板状のセメント基材層1を得た。
A. Preparation of cement base layer A mixture having the following composition was kneaded and then poured into a 1 m x 1 m x 4 mm mold, left in a room for 24 hours, removed from the mold, and dried to obtain a flat cement base layer 1.

(第1図参照) (重量部) セメント 100 骨材シヤモツト 珪砂 200 100 ステンレス鋼フアイバー 20 水 50 尚、このようにして得られたセメント基材層1
の熱膨張率は6.8×10-6/℃であつた。
(See Figure 1) (Parts by weight) Cement 100 Aggregate silica sand 200 100 Stainless steel fiber 20 Water 50 Cement base layer 1 obtained in this way
The coefficient of thermal expansion was 6.8×10 -6 /°C.

B 釉薬の塗布 上記セメント基材層1の上面に熱膨張率6.3×
10-6/℃の釉薬を0.3mm厚に塗布した。
B Applying glaze Thermal expansion coefficient 6.3× on the top surface of the cement base layer 1
A glaze of 10 -6 /°C was applied to a thickness of 0.3 mm.

C 焼成 上記釉薬塗布後のセメント基材層1を860℃で
焼成した。これにより表面を光沢を有する釉薬層
2を得た。(第2図参照) D 再水和 焼成後の製品に湿度100%、温度60℃の蒸気を
吹きかけて蒸気養生を行なつた。
C. Firing The cement base layer 1 after applying the glaze was fired at 860°C. As a result, a glaze layer 2 having a glossy surface was obtained. (See Figure 2) D. Rehydration Steam curing was carried out by spraying steam at a humidity of 100% and a temperature of 60°C onto the baked product.

E サンドブラスト処理 再水和終了後釉薬層2の表面2aに投射材とし
てアランダム(#180)を用いて2Kgf/cm2の圧
力で全面にサンドブラストを行ない、光沢の少な
い表面2aを得た。(第3図参照) (実施例の作用) 上記実施例において、釉薬層の熱膨張率(6.3
×10-6/℃)はセメント基材層1の熱膨張率
(6.8×10-6/℃)よりも0.5×10-6/℃だけ小さく
設定されているので焼成後に釉薬層2に圧縮応力
が加わつた状態となる。このため、良好な表面状
態の釉薬層2が得られる。
E. Sandblasting After completion of rehydration, the entire surface 2a of the glaze layer 2 was sandblasted using alundum (#180) as a projecting material at a pressure of 2 kgf/cm 2 to obtain a surface 2a with low gloss. (See Figure 3) (Effect of Example) In the above example, the coefficient of thermal expansion of the glaze layer (6.3
×10 -6 /℃) is set to be 0.5×10 -6 /℃ smaller than the coefficient of thermal expansion of cement base layer 1 (6.8×10 -6 / ℃), so compressive stress is applied to glaze layer 2 after firing. is added. Therefore, a glaze layer 2 with a good surface condition can be obtained.

このような熱膨張率の差は0.1〜1.0×10-6/℃
の範囲で選択され、熱膨張率の差が1.0×10-6
℃よりも大きいと、釉薬層2が盛り上がつて基材
層1より剥離する、所謂釉とびが発生し、また熱
膨張率の差が1.0×10-6/℃よりも小さいと釉薬
層2のひび割れ、所謂釉貫入が発生し、サンドブ
ラスト処理した場合には貫入部にブラスト効果が
大きく出てしまう不具合が有る。
This difference in thermal expansion coefficient is 0.1 to 1.0×10 -6 /℃
The difference in thermal expansion coefficient is 1.0×10 -6 /
If the difference in thermal expansion coefficient is smaller than 1.0×10 -6 /°C, the glaze layer 2 will bulge and peel off from the base layer 1, which is called glaze skipping. Cracks and so-called glaze penetration occur, and when sandblasting is performed, there is a problem in that the blasting effect is large at the penetration part.

釉薬層の表面2aはサンドブラスト処理するこ
とにより、微細な凹凸が出来、これにより光を乱
反射して、マツト釉の外観を呈することとなる。
By sandblasting the surface 2a of the glaze layer, fine irregularities are formed, which diffusely reflects light and gives the appearance of pine glaze.

尚、以上の実施例において、釉薬層2の熱膨張
率とセメント基材層1の熱膨張率は0.5×10-6
℃としたが、このような熱膨張率の差はセメント
基材層1中の骨材の量や種類或いは釉薬層2を形
成する釉薬のアルカリ金属成分含量を変化させる
ことにより設定できる。
In the above examples, the coefficient of thermal expansion of the glaze layer 2 and the coefficient of thermal expansion of the cement base layer 1 are 0.5×10 -6 /
℃, such a difference in thermal expansion coefficient can be set by changing the amount and type of aggregate in the cement base layer 1 or the alkali metal content of the glaze forming the glaze layer 2.

又、サンドブラスト処理に用いられる投射材は
アランダムに限らず、珪砂、コランダム、カーボ
ランダム等任意のものが利用でき、さらに投射圧
力は1〜5Kgf/cm2の圧力が利用可能である。
Further, the blasting material used in the sandblasting process is not limited to alundum, but any other material such as silica sand, corundum, or carborundum can be used, and the blasting pressure can be 1 to 5 kgf/cm 2 .

さらに上記実施例において、サンドブラスト処
理は釉薬層2の表面2aの全面に行なうものとし
たが、表面を部分的にマスキングしてサンドブラ
スト処理を行なうことにより釉薬層2の表面2a
に模様付けすることも可能である。
Further, in the above embodiment, the sandblasting treatment was performed on the entire surface 2a of the glaze layer 2, but by performing the sandblasting treatment with the surface partially masked, the surface 2a of the glaze layer 2
It is also possible to add a pattern to it.

(発明の効果) 本発明の釉薬層の表面をサンドブラスト処理す
るものであるため、釉薬層表面の光沢が減少して
反射光の眩しさが防止できるので、建築物の外壁
のような人の目に触れる構造材として最適な施釉
セメント製品が得られる利点を有する。又、特に
釉薬層の表面を部分的にマスキングしてサンドブ
ラスト処理することにより釉薬層の表面に模様付
けをすることができるので、意匠性が良好となる
利点を有する。
(Effects of the Invention) Since the surface of the glaze layer of the present invention is sandblasted, the gloss of the glaze layer surface is reduced and the glare of reflected light can be prevented. This has the advantage of producing a glazed cement product that is ideal for use as a structural material that comes into contact with the environment. In addition, since the surface of the glaze layer can be patterned by partially masking the surface of the glaze layer and performing sandblasting, there is an advantage that the design is good.

【図面の簡単な説明】[Brief explanation of drawings]

図は本発明の一実施例による施釉セメント製品
の製造方法を示すもので、第1図は施釉セメント
製品のセメント基材層の正面図、第2図はセメン
ト基材層上に釉薬層を形成した状態を示す正面
図、第3図は釉薬層の表面をサンドブラストした
状態を示す斜視図である。 1……セメント基材層、2……釉薬層、2a…
…表面。
The figures show a method for producing a glazed cement product according to an embodiment of the present invention. Figure 1 is a front view of a cement base layer of a glazed cement product, and Figure 2 is a glaze layer formed on the cement base layer. FIG. 3 is a front view showing the state in which the glaze layer has been sandblasted, and FIG. 3 is a perspective view showing the state in which the surface of the glaze layer has been sandblasted. 1... Cement base material layer, 2... Glaze layer, 2a...
…surface.

Claims (1)

【特許請求の範囲】 1 セメント基材層と釉薬層とからなる施釉セメ
ント製品の製造方法であつて、焼成後の前記釉薬
層の表面をサンドブラスト処理することを特徴と
する施釉セメント製品の製造方法。 2 前記サンドブラスト処理は前記釉薬層を再水
和させた後に行なうことを特徴とする特許請求の
範囲第1項記載の施釉セメント製品の製造方法。 3 前記セメント基材層の熱膨張率と前記釉薬層
の熱膨張率とを異ならせたことを特徴とする特許
請求の範囲第1項記載の施釉セメント製品の製造
方法。 4 前記釉薬層の熱膨張率は前記セメント基材層
の熱膨張率よりも0.1〜1.0×10-6/℃の範囲で小
さく設定することを特徴とする特許請求の範囲第
3項記載の施釉セメント製品の製造方法。
[Scope of Claims] 1. A method for producing a glazed cement product comprising a cement base layer and a glaze layer, the method comprising sandblasting the surface of the glaze layer after firing. . 2. The method of manufacturing a glazed cement product according to claim 1, wherein the sandblasting treatment is performed after rehydrating the glaze layer. 3. The method for producing a glazed cement product according to claim 1, characterized in that the coefficient of thermal expansion of the cement base layer and the coefficient of thermal expansion of the glaze layer are made different. 4. The glaze according to claim 3, wherein the coefficient of thermal expansion of the glaze layer is set to be smaller than the coefficient of thermal expansion of the cement base layer in the range of 0.1 to 1.0×10 -6 /°C. Method of manufacturing cement products.
JP12136387A 1987-05-20 1987-05-20 Production of glazed cement product Granted JPS63288981A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12136387A JPS63288981A (en) 1987-05-20 1987-05-20 Production of glazed cement product

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12136387A JPS63288981A (en) 1987-05-20 1987-05-20 Production of glazed cement product

Publications (2)

Publication Number Publication Date
JPS63288981A JPS63288981A (en) 1988-11-25
JPH0469596B2 true JPH0469596B2 (en) 1992-11-06

Family

ID=14809394

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12136387A Granted JPS63288981A (en) 1987-05-20 1987-05-20 Production of glazed cement product

Country Status (1)

Country Link
JP (1) JPS63288981A (en)

Also Published As

Publication number Publication date
JPS63288981A (en) 1988-11-25

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term