JPS61191553A - Lightweight clay roof tile - Google Patents
Lightweight clay roof tileInfo
- Publication number
- JPS61191553A JPS61191553A JP3119685A JP3119685A JPS61191553A JP S61191553 A JPS61191553 A JP S61191553A JP 3119685 A JP3119685 A JP 3119685A JP 3119685 A JP3119685 A JP 3119685A JP S61191553 A JPS61191553 A JP S61191553A
- Authority
- JP
- Japan
- Prior art keywords
- clay
- tile
- tiles
- parts
- roof tile
- 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
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
本発明は粘土瓦、特に特定の製造原料を用いて軽量化し
た粘土瓦に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to clay roof tiles, and more particularly to clay roof tiles whose weight is reduced using specific manufacturing raw materials.
従来の技術
建築物に使用する屋根瓦のうち粘土瓦と呼ばれるものは
それぞれの土地K11l出する特産の粘土を原料として
製造されている。これらの粘土は一般に石英1.長石、
カオリン鉱物、モンモリロナイト鉱物、雲母質粘土鉱物
等からなっている。Conventional Technology Among the roof tiles used in buildings, those called clay tiles are manufactured using clay, a local specialty produced in each area, as a raw material. These clays are generally quartz 1. feldspar,
It consists of kaolin minerals, montmorillonite minerals, micaceous clay minerals, etc.
上記粘土をもって製造された粘土瓦は、欠点として4成
約強度が低くかったり、焼成により変形?生じ易く、現
状では粘土瓦製造時、粘土瓦の肉厚を厚くすることによ
って強度不足や、易変形性等の欠点?補っている。一般
に粘土瓦は縦、横の寸法がJIS A 5208で規定
されており、例えば53A型については縦、横の寸法は
305±41nLと規定されているが、肉厚については
特定の規格はなく、現在の粘土瓦は大体15IIS前後
である。Clay tiles manufactured using the above-mentioned clay have disadvantages such as low contract strength and deformation during firing. Currently, when clay tiles are manufactured, the thickness of the clay tiles is increased, resulting in lack of strength and easy deformation. Compensating. Generally, the vertical and horizontal dimensions of clay tiles are specified by JIS A 5208, and for example, for type 53A, the vertical and horizontal dimensions are specified as 305±41nL, but there is no specific standard for wall thickness. Current clay tiles are approximately 15 IIS.
このため製品化された粘土瓦は重量が大きく、製品の運
送に不便があるばかりでなく、粘土瓦製造時においても
焼成燃料費等に負担がかかつている。For this reason, the manufactured clay tiles are heavy, which not only makes transportation of the products inconvenient, but also imposes a burden on firing fuel costs and the like during the manufacture of clay tiles.
かかる粘土瓦の製造法に関しては特開昭59−1079
54号公報、特開昭59−116169号公報等を参照
することができる。前者は粘土に、石英、長石よりなる
砂婆粉を混合する方法、後者は粘土に鋳物集塵ダスト珪
砂を混合する方法をそれぞれ特徴とするものである。Regarding the manufacturing method of such clay tiles, see Japanese Patent Application Laid-Open No. 59-1079.
Reference may be made to Japanese Patent Application Publication No. 54, Japanese Unexamined Patent Publication No. 116169/1984, and the like. The former is characterized by a method of mixing clay with sand powder made of quartz and feldspar, and the latter is characterized by a method of mixing foundry dust collection dust silica sand with clay.
発明が解決しようとする問題点
本発明は上記の方法とは別に独自に追及されたものであ
り、更に有効な粘土瓦の軽量化法を目指すものである。Problems to be Solved by the Invention The present invention has been pursued independently from the above-mentioned methods, and aims at a more effective method for reducing the weight of clay roof tiles.
問題点を解決するための手段
本発明によれば、MgO成分な好ましくは約20〜65
%程含有する鉱物粉末3〜20%と珪石粉末0〜10%
と粘土、97〜70%と混合した素地±?成形して瓦素
地を作成し、焼成して粘土瓦を得ることを特徴とするも
のである。Means for Solving the Problems According to the invention, the MgO component is preferably about 20 to 65
Mineral powder containing 3-20% and silica powder 0-10%
and clay, a mixture of 97-70% ±? It is characterized by forming a tile base and firing it to obtain a clay tile.
本発明者は後述するMgO成分を含有する鉱物粉末を原
料粘土に混合することによって粘土瓦の機械的強度が増
大することを見出し、本発明に到ったものである。すな
わち、本発明により製品瓦の強度’に損わずに肉厚を減
じて軽量粘土瓦?得ることが可能となった。The present inventor has discovered that the mechanical strength of a clay tile can be increased by mixing a mineral powder containing an MgO component, which will be described later, into raw clay, and has thus arrived at the present invention. In other words, the present invention can reduce the thickness of the product tile without sacrificing its strength, thereby producing a lightweight clay tile. It became possible to obtain.
一般に、MgO成分χ含む鉱物としては滑石、苦土撤攬
石、蛇紋石、菫青石、菱苦土鉱、白雲石等が挙げられる
。しかしながら本発明では菱苦土鉱、白雲石については
所期の強度が得られないことが判明した。従って、本発
明で使用できるMgO成分を含む鉱物は菱苦土鉱、白雲
石χ除く上記鉱物およびその類似物である。In general, examples of minerals containing the MgO component χ include talc, magnesite, serpentine, cordierite, rhomboidite, dolomite, and the like. However, in the present invention, it has been found that the desired strength cannot be obtained for rhomboidite and dolomite. Therefore, the minerals containing the MgO component that can be used in the present invention are the above-mentioned minerals and their analogues, excluding diamondite and dolomite χ.
MgO成分ン含むこの鉱物の粉末の粘土に対する混合割
合は必要とされる粘土瓦の機械的強度によって適宜に選
ぶことができるが、3〜20%が好ましく、特に20%
’Y超えると強度は増大するが素地上の粘土量が不足し
、可塑性が減少し、成形上困雌な生ずる。又3%を下回
ると焼成した粘土瓦の機械的強度が充分ではなくなる。The mixing ratio of this mineral powder containing MgO component to clay can be appropriately selected depending on the required mechanical strength of the clay tile, but is preferably 3 to 20%, particularly 20%.
If it exceeds 'Y, the strength will increase, but the amount of clay on the base will be insufficient, the plasticity will decrease, and molding will be difficult. Moreover, if it is less than 3%, the mechanical strength of the fired clay tile will not be sufficient.
更に本発明では珪石粉末を同時に加えるとよい場合があ
る。この原料は本発明による素地±を成形し焼成すると
きの瓦の焼成収縮な調整するために用いるものである。Furthermore, in the present invention, it may be advantageous to add silica powder at the same time. This raw material is used to adjust the firing shrinkage of tiles when the base material according to the present invention is molded and fired.
本発明に用いることのできる珪石粉末は200メツシユ
以下の粒度が好ましい。珪石粉末の混合割合はMgO成
分含有鉱物粉末の混合割合や種類によって適宜に決める
ことができるが、しかしせいぜい10%まで加えればよ
い。The silica powder that can be used in the present invention preferably has a particle size of 200 mesh or less. The mixing ratio of the silica powder can be appropriately determined depending on the mixing ratio and type of the MgO component-containing mineral powder, but it may be added up to 10% at most.
このよ5&C本発明は粘土にMgOFlft分含有鉱物
粉末と必要に応じて珪石粉末と2部合した素地±をもっ
て粘土瓦を製造する方法であり、使用する粘土としては
従来の瓦の製造に使用されている粘土の入ならず、各地
で産出されるいかなる粘土でもよい。5&C The present invention is a method for manufacturing a clay tile using a base material in which clay is combined with mineral powder containing MgO Flft and, if necessary, silica powder. Any type of clay that is produced in various places can be used.
U上剥を代表的な粘土瓦とされているミ州瓦に用いられ
ている三浦粘土にとって本発明?説明する。Is this invention applicable to Miura clay, which is used in Mi-shu tiles, which are considered to be a typical clay tile? explain.
例1 以下の原料とその配合割合をもって素地上をつくった。Example 1 The base material was made using the following raw materials and their mixing ratios.
三河瓦粘土 89.5部
三重県鳥羽産撤攬岩粉末 9部
珪石粉末 4.5部
χ水分19%にして従来通りの方法で湿式土練機にて混
練後、夏用のプレスで成形、約30時間強制乾燥室で乾
燥させたものy1ioo℃、19時間粘土瓦用トンネル
窯で焼成して粘土瓦(1) ン得た。Mikawa tile clay 89.5 parts Retrieved rock powder from Toba, Mie Prefecture 9 parts Silica powder 4.5 parts The clay tiles were dried in a forced drying chamber for about 30 hours and fired in a clay tile tunnel kiln at 100°C for 19 hours to obtain clay tiles.
例2
例1と同様にして粘土瓦(2)を得た。たyし配合は下
記のように変え、混線時の水分ン18%とした。Example 2 A clay tile (2) was obtained in the same manner as in Example 1. The mixture was changed as shown below, and the water content at the time of crosstalk was 18%.
三河瓦粘土 76部
三重県鳥羽産撤攬岩粉末 18部
珪石粉末 9部
例3
例1と同様にして粘土瓦(3) yal−得た。たyし
配合成分と割合は下記のように変え、混線時の水分を2
0%とした。Mikawa tile clay 76 parts Retrieved rock powder from Toba, Mie Prefecture 18 parts Silica stone powder 9 parts Example 3 A clay tile (3) yal was obtained in the same manner as in Example 1. The ingredients and proportions of the mixture were changed as shown below, and the moisture content at the time of crosstalk was reduced by 2.
It was set to 0%.
三浦粘土 84.9部
滑石粉末 13.5部
珪石粉末 1.7部
例4(参考例)
例1と同様にして粘土瓦(4)ヲ得た。たyし配合成分
と割合は下記のように変え、混線時の水分は18.6う
とじた。Miura clay 84.9 parts Talc powder 13.5 parts Silica powder 1.7 parts Example 4 (Reference Example) A clay tile (4) was obtained in the same manner as in Example 1. The ingredients and proportions were changed as shown below, and the water content during crosstalk was 18.6 ml.
三河瓦粘土 82.5部
菱苦土鉱粉末 9.1部
珪石粉末 8.4部
上記粘土瓦[1)、+21. (31及び(4)と従来
の粘土瓦を対照させ、下記表にまとめた。Mikawa tile clay 82.5 parts Magnesium mineral powder 9.1 parts Silica powder 8.4 parts Above clay tile [1), +21. (31 and (4) were compared with conventional clay tiles and summarized in the table below.
発明の効果
上記表から明らかなように、本発明の効果は(イ)粘土
瓦の肉厚が20%減少し、粘土瓦として約20%の軽量
化が実現しているにもかへわらず、JI8 A5208
粘土瓦で規定されている曲げ破壊荷重は同等か又はそれ
U上である、
(ロ)このことは粘土瓦の機械的強度を示す、曲げ強度
の差から見ても粘土瓦の品質そのものが向上しているた
めに肉薄化が可能となっていることを特徴づけている、
(/i吸水率が減少することによって粘土瓦の凍害抵抗
性が向上する、そして
に)熱膨張係数の増加は釉薬との適合性を一層よくシ、
釉薬の貫入防止に効果がある
等があげられる。Effects of the Invention As is clear from the table above, the effects of the present invention are as follows: (a) Despite the fact that the wall thickness of the clay tile has been reduced by 20% and the weight of the clay tile has been reduced by about 20%, , JI8 A5208
The bending failure load specified for clay tiles is the same or higher than that (B) This indicates the mechanical strength of clay tiles, and the quality of clay tiles themselves has improved even from the difference in bending strength. (/i) The freezing damage resistance of clay tiles is improved by decreasing the water absorption rate, and the increase in the coefficient of thermal expansion is characterized by the fact that the glaze can be made thinner. Improve compatibility with
It is effective in preventing penetration of glaze.
Claims (1)
〜10%及び瓦粘土97〜70%の混合素地土を成形焼
成してなることを特徴とする軽量粘土瓦。Mineral powder containing MgO component 3-20%, silica powder 0
A lightweight clay tile characterized by being made by molding and firing a mixed base soil of ~10% and tile clay of 97-70%.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3119685A JPS61191553A (en) | 1985-02-19 | 1985-02-19 | Lightweight clay roof tile |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3119685A JPS61191553A (en) | 1985-02-19 | 1985-02-19 | Lightweight clay roof tile |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS61191553A true JPS61191553A (en) | 1986-08-26 |
JPH0429624B2 JPH0429624B2 (en) | 1992-05-19 |
Family
ID=12324664
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3119685A Granted JPS61191553A (en) | 1985-02-19 | 1985-02-19 | Lightweight clay roof tile |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61191553A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2470904C1 (en) * | 2011-07-06 | 2012-12-27 | Юлия Алексеевна Щепочкина | Engobe |
JP2016050122A (en) * | 2014-08-28 | 2016-04-11 | 株式会社丸長 | Clay for ceramic product |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2505506C1 (en) * | 2012-09-14 | 2014-01-27 | Юлия Алексеевна Щепочкина | Ceramic mass |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54106512A (en) * | 1978-02-10 | 1979-08-21 | Tanto Kk | Production of low fireeshrinkage* highhprecision ceramics |
-
1985
- 1985-02-19 JP JP3119685A patent/JPS61191553A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54106512A (en) * | 1978-02-10 | 1979-08-21 | Tanto Kk | Production of low fireeshrinkage* highhprecision ceramics |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2470904C1 (en) * | 2011-07-06 | 2012-12-27 | Юлия Алексеевна Щепочкина | Engobe |
JP2016050122A (en) * | 2014-08-28 | 2016-04-11 | 株式会社丸長 | Clay for ceramic product |
Also Published As
Publication number | Publication date |
---|---|
JPH0429624B2 (en) | 1992-05-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
EXPY | Cancellation because of completion of term |