JPS6172694A - Tile manufacturing method - Google Patents
Tile manufacturing methodInfo
- Publication number
- JPS6172694A JPS6172694A JP19665385A JP19665385A JPS6172694A JP S6172694 A JPS6172694 A JP S6172694A JP 19665385 A JP19665385 A JP 19665385A JP 19665385 A JP19665385 A JP 19665385A JP S6172694 A JPS6172694 A JP S6172694A
- Authority
- JP
- Japan
- Prior art keywords
- water
- tiles
- cement
- curing
- molded product
- 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
Landscapes
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
- Producing Shaped Articles From Materials (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、瓦の製造方法に関するものである。[Detailed description of the invention] [Industrial application field] The present invention relates to a method for manufacturing roof tiles.
日本瓦としてセメント瓦が公知であり、この瓦を製造す
るには、セメント：砂止（重量比）を１＝３に調合した
比較的硬練りのモルタルを製瓦機の型板上に盛り、この
モルタルをローラにより型板にたたき込むと共に余分の
モルタルをかき取り、かくして成形した成形品を型板ご
と製瓦臂からはずし、これを養生室に搬入し、成形品を
養生している。Cement tiles are known as Japanese tiles. To manufacture these tiles, a relatively hard mortar with a ratio of cement to sand (weight ratio) of 1 = 3 is placed on the template of a tile making machine. This mortar is rolled into the template by rollers, excess mortar is scraped off, and the molded product thus formed is removed from the tile arm along with the template, and is carried into a curing room where it is cured.
しかしながら、このようにして得られた瓦においては、
湿式成形であるために、含水率、吸水性、透水性等が大
であり、耐凍害性に劣り、雨水の透過があるといった難
点の他、曲げ強度がそれほど高くなく、また、断熱性が
必ずしも満足すべきものではない、さらには、重量が比
較的大であるといった難点がある。また、養生時に、成
形品にクラックが生じ易く、このクラックの発生は特に
鬼瓦、棟端飾瓦、軒瓦、並びにすみ瓦において顕著であ
る。このクランク発生の一原因としては、成形品養生時
の水分の蒸発が、成形品の表面のみから生じ、乾燥が成
形品全体に対して一様に行われ難いこと、養生後の成形
品の冷却が成形品の表面のみから行われ、成形品全体の
一様冷却が困デＷであること等が考えられる。However, in the tiles obtained in this way,
Because it is wet molded, it has high moisture content, water absorption, water permeability, etc., has poor freeze resistance, and has problems such as rainwater permeation.In addition, bending strength is not very high, and insulation properties are not necessarily high. Moreover, it has disadvantages such as being unsatisfactory and being relatively heavy. In addition, during curing, molded products tend to crack, and the occurrence of cracks is particularly noticeable in onigawa tiles, ridge end decoration tiles, eaves tiles, and corner tiles. One of the causes of this cranking is that evaporation of water during molded product curing occurs only from the surface of the molded product, making it difficult to dry the entire molded product uniformly, and cooling of the molded product after curing. It is conceivable that cooling is performed only from the surface of the molded product, making it difficult to uniformly cool the entire molded product.
この発明に係る瓦の製造方法は、耐候性、セメント瓦の
曲げ強度並びに断熱性の向上、セメント瓦の軽量化、並
びにクランクの発生防止が有効に実゛現される瓦の製造
方法を得ることを目的とするものである。The method for manufacturing tiles according to the present invention is to obtain a method for manufacturing tiles that effectively realizes weather resistance, improvement in bending strength and heat insulation of cement tiles, reduction in weight of cement tiles, and prevention of occurrence of cranks. The purpose is to
この発明に係る瓦の製造方法は、無機質発泡骨材並びに
補強繊維を含むセメント混合物に、重量比で３〜１２％
の水分を添加し、このセメント混合物を瓦の形状に１０
０〜５５０ ｋｇ／ｃｔの圧力でプレス成形し、該成形
体に、水中浸漬または散水により水を供給し、次いで、
成形体を養生することを特徴とするものである。The method for manufacturing roof tiles according to the present invention involves adding 3 to 12% by weight of a cement mixture containing inorganic foamed aggregate and reinforcing fibers.
of water and mold this cement mixture into the shape of a tile.
Press molding is carried out at a pressure of 0 to 550 kg/ct, water is supplied to the molded body by immersion in water or water sprinkling, and then,
It is characterized by curing the molded body.
以下この発明を説明する。 This invention will be explained below.
まず、セメント、無機質発泡骨材並びに繊維が水の添加
下でミキサーにより硬練りされる。First, cement, inorganic foamed aggregate and fibers are hard mixed in a mixer with the addition of water.
この場合、水の添加割合は重量比で３〜１２％′
に選ばれる。無機質発泡骨材としては、軽石、発
泡珪砂、或いは発泡アルミ鋳物粒子が用いられ、補強繊
維には、石綿、ガラス繊維等の無機質繊維或いはビニロ
ン繊維等の有機繊維が用いられる。In this case, the proportion of water added is 3 to 12% by weight.
selected. Pumice, foamed silica sand, or foamed aluminum casting particles are used as the inorganic foamed aggregate, and as the reinforcing fibers, inorganic fibers such as asbestos and glass fibers or organic fibers such as vinylon fibers are used.
このようにして硬練りされた原料は、プレスにチャージ
され、圧力１００〜５５０ｋｇ／ｃｄのもとで、瓦の形
状に成形され、次いで、この成形体に水中浸漬、散水に
より水分が供給される。なお、この給水は省略すること
も出来る。The hard-kneaded raw materials are charged into a press and formed into the shape of a tile under a pressure of 100 to 550 kg/cd, and then water is supplied to this formed body by immersion in water and water sprinkling. . Note that this water supply can also be omitted.
さらに成形体が、温度１０〜１００°Ｃ１好ましくは６
０〜７０℃の室内に１〜２日間放置され、−次養生され
る。この−次養生は、生産性向上のために水蒸気養生と
してもよい。Furthermore, the temperature of the molded body is 10 to 100°C, preferably 6°C.
It is left in a room at 0 to 70°C for 1 to 2 days for subsequent curing. This second curing may be steam curing to improve productivity.
一次養生後は、成形体表面に粉末状着色材（セメント、
プラスチックポリマーと着色顔料の混合物）が散布され
、しかるのちは、オートクレーブに投入され、最終養生
が行われる。着色材には、プラスチック塗料を用いるこ
ともでき、この場合、塗布層の乾燥は、６０〜７０℃、
数分の条件で行われる。After the primary curing, powdered coloring agents (cement,
A mixture of plastic polymers and colored pigments) is then sprayed on and then placed in an autoclave for final curing. Plastic paint can also be used as the coloring material, and in this case, the coating layer is dried at 60 to 70°C.
It takes place in a few minutes.
上記において、原料混練時の添加水分を３〜１２％（重
量比）に限定した理由は、セメントの流動性を極力抑え
、無機質発泡骨材へのセメントの含浸を防止するためで
ある。また、プレス圧を１００〜５５０ｋｇ／ｃｎｌに
限定した理由も、無機質発泡骨材の多孔内へのセメント
の圧入を極力防止するためであり、５５０ｋｇ／ｃｔ＆
以上では、との圧入が促進され、１００ｋｇ／ｃｎｌ以
下では圧縮不足による瓦の強度不足が顕著となる。In the above, the reason why the amount of water added during raw material kneading was limited to 3 to 12% (weight ratio) is to suppress the fluidity of cement as much as possible and prevent cement from impregnating the inorganic foamed aggregate. In addition, the reason why the press pressure was limited to 100 to 550 kg/cnl was to prevent cement from being press-fitted into the pores of the inorganic foam aggregate as much as possible.
If the pressure is above 100 kg/cnl, the strength of the roof tile will be significantly insufficient due to insufficient compression.
石綿９％、セメント３５％、珪砂２５％、軽石１８％、
並びに残部、石綿セメントスクラノブの全体に対し、５
％（重量比）の水を添加し、これをミキサーで混練した
。この原料をプレスにより、圧力２００ｋｇ／ｃＩ１１
で厚さ１２龍の平板状瓦に成形し、該成形体を水中に漫
清し、しかるのち、オートクレーブにより最終養生した
。9% asbestos, 35% cement, 25% silica sand, 18% pumice,
and the remainder, for the entire asbestos cement scrubber knob, 5
% (by weight) of water was added, and the mixture was kneaded with a mixer. This raw material is pressed at a pressure of 200 kg/cI11
The molded product was molded into a flat tile with a thickness of 12 mm, immersed in water, and then finally cured in an autoclave.
このようにして得た瓦の比重、曲げ強度、並びに熱伝専
率を石綿セメント瓦（セメント二石綿の割合は８５：１
５）と比較・したところ、次の通りであり、何れの特性
においても、この発明の瓦が優れている。The specific gravity, bending strength, and heat transfer ratio of the tiles obtained in this way were evaluated using asbestos-cement tiles (the ratio of cement to asbestos was 85:1).
When compared with 5), the results are as follows, and the tiles of this invention are superior in all properties.
未発明瓦 石綿セメント仮
比 重 約 １．５ 約 ２．２
曲げ強度 〃１０２Ｋｇ／ ｃｎｌ 〃８０Ｋｇ
／ ｃｎｌ熱伝辺率 〃０．３Ｋｃａｌ／ｍｂｔ
〃０．５Ｋｃａｌ／ｍｈ”ｃ〔効果〕
この発明においては、上記のように原料の添加水量をセ
メントの水和反応に必要な最小限の少量とし、プレス成
形圧力を無機質発泡骨材への水分圧入を防止できる範囲
内の値としたから、プレス成形後においても無機質発泡
骨材の多孔は、未充填状態に保たれている。従って、養
生時の水分の蒸発は１．無機質発泡骨材の多孔性のため
に成形体の内部からも行われ、成形体全体が一様に乾燥
される。また、養生後の成形品の冷却も、成形品の表面
のみならず、内部からも行われ、成形体全体の−＋ｆｆ
２冷却が叶えられる。このため、成形体のクランク発生
は、良好に防止され得る。Uninvented tiles Asbestos-cement tentative specific gravity Approximately 1.5 Approximately 2.2
Bending strength〃102Kg/cnl〃80Kg
/ cnl heat conductivity 〃0.3Kcal/mbt
[0.5 Kcal/mh”c [Effect] In this invention, as mentioned above, the amount of water added to the raw material is set to the minimum amount necessary for the hydration reaction of cement, and the press molding pressure is adjusted to increase the amount of water added to the inorganic foamed aggregate. Since the value was set within a range that can prevent press-fitting, the pores of the inorganic foamed aggregate remain unfilled even after press forming.Therefore, the evaporation of water during curing is Because of the porosity, cooling is performed from the inside of the molded product, and the entire molded product is uniformly dried.Furthermore, cooling of the molded product after curing is performed not only from the surface of the molded product but also from the inside. -+ff of the entire molded body
2 Cooling can be achieved. Therefore, occurrence of cranks in the molded body can be effectively prevented.
この発明により得られた瓦は、無機質発泡骨材を多孔状
態のままで含有しているから、断熱性に優れ、また、軽
量でもある。更に、補強繊維を含んでいるからａ械釣強
度にも優れている。Since the tiles obtained by this invention contain inorganic foamed aggregate in a porous state, they have excellent heat insulation properties and are also lightweight. Furthermore, since it contains reinforcing fibers, it has excellent mechanical strength.
この発明により得られる瓦は、無機質発泡骨材を含んで
いるから無機質発泡骨材の多孔に水分が浸入する。しか
し、この水分が凍結、融解されても、無機質発泡骨材の
殻の強度が大であるため、凍結、融解時の応力によるク
ラックの発生はなく、耐凍寒性も充分である。Since the tiles obtained by this invention contain inorganic foamed aggregate, water permeates into the pores of the inorganic foamed aggregate. However, even if this moisture freezes and thaws, the strength of the shell of the inorganic foam aggregate is high, so cracks do not occur due to stress during freezing and thawing, and the material has sufficient freezing and cold resistance.
代理人 弁理士 清水実１′；［−・−丁１］敷わ 敷を 内Agent: Patent attorney Minoru Shimizu1'; [-・-1] Lay the bed Inside
Claims (1)
合物に、重量比で３〜１２％の水分を添加し、このセメ
ント混合物を瓦の形状に１００〜５５０ｋｇ／ｃｍ＾２
の圧力でプレス成形し、該成形体に、水中浸漬または散
水により水を供給し、次いで、成形体を養生することを
特徴とする瓦の製造方法。(1) Add 3 to 12% water by weight to a cement mixture containing inorganic foamed aggregate and reinforcing fibers, and shape this cement mixture into tiles at 100 to 550 kg/cm^2
1. A method for producing a roof tile, which comprises press-molding the molded body at a pressure of 100 mL, supplying water to the molded body by immersion in water or sprinkling water, and then curing the molded body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19665385A JPS6172694A (en) | 1985-09-04 | 1985-09-04 | Tile manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19665385A JPS6172694A (en) | 1985-09-04 | 1985-09-04 | Tile manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6172694A true JPS6172694A (en) | 1986-04-14 |
| JPS6131075B2 JPS6131075B2 (en) | 1986-07-17 |
Family
ID=16361355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19665385A Granted JPS6172694A (en) | 1985-09-04 | 1985-09-04 | Tile manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6172694A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0432744U (en) * | 1990-07-13 | 1992-03-17 |
-
1985
- 1985-09-04 JP JP19665385A patent/JPS6172694A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6131075B2 (en) | 1986-07-17 |
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