JPH01208379A - Production of board for building construction - Google Patents
Production of board for building constructionInfo
- Publication number
- JPH01208379A JPH01208379A JP3229288A JP3229288A JPH01208379A JP H01208379 A JPH01208379 A JP H01208379A JP 3229288 A JP3229288 A JP 3229288A JP 3229288 A JP3229288 A JP 3229288A JP H01208379 A JPH01208379 A JP H01208379A
- Authority
- JP
- Japan
- Prior art keywords
- molded articles
- autoclave
- cured
- cement
- building construction
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 238000009435 building construction Methods 0.000 title abstract 4
- 239000004568 cement Substances 0.000 claims abstract description 23
- 239000000203 mixture Substances 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 230000000903 blocking effect Effects 0.000 abstract description 7
- 239000000835 fiber Substances 0.000 abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 4
- 239000012615 aggregate Substances 0.000 abstract description 2
- 229910052742 iron Inorganic materials 0.000 abstract description 2
- 238000010030 laminating Methods 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 239000011398 Portland cement Substances 0.000 description 6
- 239000010425 asbestos Substances 0.000 description 5
- 229910052895 riebeckite Inorganic materials 0.000 description 5
- 239000002002 slurry Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000000704 physical effect Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- 229920002978 Vinylon Polymers 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000012438 extruded product Nutrition 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
Landscapes
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
本発明は外装材、内装材として使用される建築用板の製
造方法に関する。The present invention relates to a method for manufacturing architectural boards used as exterior and interior materials.
従来より、セメント組成物は所定の形状に抄造成形ある
いは押出成形された後、養生硬化されて外装材のような
建築用板が製造されている。
例えば、石綿セメントケイ酸カルシウム、板の場合は抄
造成形後、積み重ねてオートクレーブ養生して！！！遺
されている。又、押出成形品としての化粧石綿セメント
はセメントの硬化が阻害されるという欠点があるためオ
ートクレーブ養生されて製造されているが、この場合所
定間隔を置いて立て掛けてオートクレーブ養生されてい
る。Conventionally, a cement composition is formed into a predetermined shape by paper forming or extrusion molding, and then cured and hardened to produce a building board such as an exterior material. For example, in the case of asbestos cement calcium silicate board, after forming it into paper, stack it up and cure it in an autoclave! ! ! It is left behind. In addition, decorative asbestos cement as an extruded product has the disadvantage that hardening of the cement is inhibited, so it is manufactured by being cured in an autoclave. In this case, the pieces are placed upright at predetermined intervals and cured in an autoclave.
従来にあっては、オートクレーブ養生の際に平積みすれ
ば、成形品がブロッキングを起こしてしまったり、均一
な養生ができなく寸法変化率が大きくなってしまってい
た。又、立て掛ければブロッキングが防止でき、寸法変
化率も小さくできるが生産性が者しく低下してしまって
いた。
本発明は上記事情に鑑みて為されたものであり、その目
的とするところは、生産性を高めることができ、しかも
ブロッキングを防止でき、寸法変化率も低減できる建築
用板のｇｉ造方法を提供することにある。Conventionally, if the molded products were stacked flat during autoclave curing, blocking would occur in the molded products, and uniform curing could not be achieved, resulting in a large dimensional change rate. Also, by leaning against it, blocking can be prevented and the rate of dimensional change can be reduced, but productivity has been significantly reduced. The present invention has been made in view of the above circumstances, and its purpose is to provide a method for making GI construction boards that can increase productivity, prevent blocking, and reduce the rate of dimensional change. It is about providing.
本発明の建築用板の製造方法は、セメント組成物を板状
に成形賦形し、次いでオートクレーブ養生する建築用板
の製造方法において、成形賦形した成形品１の少なくと
も片面に多数の凹部２を形成し、この凹部２を有する成
形品１を積み重ねてオートクレーブ養生することを特徴
とするものであり、この構成により上記目的が達成され
たものである。The method for manufacturing a building board of the present invention includes forming a cement composition into a plate shape and then curing it in an autoclave, in which a large number of recesses 2 are formed on at least one side of a molded product 1. The molded products 1 having the recessed portions 2 are stacked and cured in an autoclave, and this configuration achieves the above object.
成形品１には凹部２が形成されているので、オートクレ
ーブ養生の際に、積み重ねてもブロッキングを起こすこ
とがなく、しかも凹部２を水蒸気が通るので、成形品１
が均一に養生され寸法変化率の小さな建築用板が得られ
るものであり、更には積み重ねて養生できるので、−度
に多数枚養生でき、生産性を高めることができるもので
ある。Since the recess 2 is formed in the molded product 1, blocking will not occur even when stacked during autoclave curing.Moreover, since water vapor passes through the recess 2, the molded product 1
It is possible to obtain architectural boards that are uniformly cured and have a small rate of dimensional change.Furthermore, since they can be stacked and cured, a large number of boards can be cured at the same time, and productivity can be increased.
以下、本発明を添付の図面を参照して詳細に説明する。
本発明において使用するセメントとしては、普通ポルト
ランドセメント、早強ポルトランドセメント、中庸ポル
トランドセメントなどの単味ポルトランドセメント、混
合ポルトランドセメント、アルミナセメント、マグネシ
アセメントなどの特殊セメント等いずれをも採用できる
。
このセメントに骨材、石綿のような無機繊維、ビニロン
のような有機繊維などの補強材、リグニンスルホン酸、
ホルマリン縮合物などの撥水剤その他混和材料が配合さ
れて繊維セメント複合体が調製され、この複合体に水が
混合されてセメント組成物が得られる。
例えば、ポルトランドセメントと石綿、パルプ、有機繊
維等の１種又は２種以上と高炉水砕スラグ粉末、フライ
７ツシユ、ケイ石粉末等の無機混和材料の１種又は２種
以上から繊維セメント複合体が調製され、その総重量に
対して５倍以上の水が混合されてセメント組成物として
のセメントスラリーが調製される。
次いで、このセメントスラリーが金網等によって抄き上
げる抄造方法により、板状に成形賦形され見掛は比重が
１．５以上の成形品１が得られる。
この成形品１の片面にプレス等により、第３図に示すよ
うな深さＨが０ 、５ ａｍ以上且つ板厚の１／２以下
で開隔Ｗが１０ｍｍ以下となるような断面形状の凹部２
が多数設けられる。成形品１に模様が付されている場合
には模様方向と直角方向に凹部２が形成される。
この後、温度６０℃以下、４８時間より短い時間かけて
成形品１が硬化される。この前養生の後、１２図に示す
ようにパレット３上に成形品１を複数枚積み重ね、その
上面に鉄板４を配置し、この状態で第１図に示すように
養生毎５内に配置され、加圧下、温度１２０〜２００℃
の水蒸気雰囲気中でオートクレーブ養生されて建築用板
が製造される。
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）
石綿１５％、パルプ１％、高炉水砕スラグ８４％に水を
加えてセメントスラリーを調製し、このセメントスラリ
ーを抄造して成形品を得た。
この成形品の片面に深さ０．５１１１ｍ１間隔１０ｍ＋
ｅの多数の凹部を形成し、２０℃、２４時間かけて前養
生した後、平積み（７９２ｍ２／回）し、１５０℃、８
時間かけてオートクレーブ養生した。
このようにして製造した建築用板の曲げ強度、吸水率、
嵩比重、寸法変化率（抄造方向と水平方向）等の物性を
測定した。結果を第１表に示す。
（比較例１）
成形品に凹部を設けないで、立て掛け（１６５＋ａ２／
回）でオートクレーブ養生した以外は実施例と同様にし
て建築用板を製造した。このものの物性を第１表に示す
。
（比較例２）
成形品を自然養生した以外は実施例１と同様にして建築
用板を製造した。このものの物性を第１表に示す。
ｔＪＳ１表
曲げ強度（ｋｇ／ｃＩ６２）
抄造方向と直角 ２３９ ２４７ ２０５抄造
方向と水平 １９２ １７９ ２０５吸水率（
％） ２０，７ ２１．５ ２０．７
素化重 １，６９ １，６７ １．
６９寸法′・ （０／ ０．１８ ０．１
４ ０．２８第１表の結果より、本発明の実施例に
よれば、生産性を高めることができるにも拘わらず、得
られた建築用板の物性は比較例に対して実用上問題とな
る程の差異がないことが判明した。
【発明の効果］
本発明にあっては、成形賦形した成形品の少なくとも片
面に多数の凹部を形成し、この凹部を有する成形品を積
み重ねてオートクレーブ養生するので、成形品の凹部に
より、オートクレーブ養生の際に、積み重ねてもブロッ
キングを起こすこと。
がなく、しかも凹部を水蒸気が通るので、成形品が均一
に養生され寸法変化率の小さな建築用板が得られるもの
であり、更には積み重ねて養生できるので、−度に多数
枚養生でさ、生産性を高めることができるものである。Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. As the cement used in the present invention, any of plain Portland cement such as ordinary Portland cement, early strength Portland cement, and medium Portland cement, special cement such as mixed Portland cement, alumina cement, and magnesia cement can be used. In this cement, aggregate, reinforcing materials such as inorganic fibers such as asbestos, organic fibers such as vinylon, lignin sulfonic acid,
A fiber cement composite is prepared by blending a water repellent such as a formalin condensate and other admixture materials, and water is mixed with this composite to obtain a cement composition. For example, fiber cement composites are made from Portland cement, one or more of asbestos, pulp, organic fibers, etc., and one or more of inorganic admixtures such as granulated blast furnace slag powder, fly slag, silica powder, etc. is prepared, and 5 times or more of water is mixed with the total weight to prepare a cement slurry as a cement composition. Next, this cement slurry is formed into a plate shape by a paper-making method in which the cement slurry is drawn up using a wire mesh or the like to obtain a molded product 1 having an apparent specific gravity of 1.5 or more. On one side of the molded product 1, by pressing or the like, a recess is formed with a cross-sectional shape such that the depth H is 0.5 am or more, 1/2 or less of the plate thickness, and the opening W is 10 mm or less, as shown in Fig. 3. 2
There are many. When the molded product 1 has a pattern, a recess 2 is formed in a direction perpendicular to the direction of the pattern. Thereafter, the molded article 1 is cured at a temperature of 60° C. or less for a period of less than 48 hours. After this pre-curing, a plurality of molded products 1 are stacked on a pallet 3 as shown in FIG. , under pressure, temperature 120-200℃
Architectural boards are manufactured by autoclave curing in a steam atmosphere. Next, embodiments of the present invention will be specifically described. In the following, % indicates weight %. (Example) A cement slurry was prepared by adding water to 15% asbestos, 1% pulp, and 84% granulated blast furnace slag, and this cement slurry was made into a paper to obtain a molded article. One side of this molded product has a depth of 0.5111 m and an interval of 10 m +
After forming a large number of concave portions and pre-curing at 20°C for 24 hours, they were stacked flat (792 m2/time) and heated at 150°C for 8 hours.
I spent a lot of time curing it in an autoclave. The bending strength, water absorption rate,
Physical properties such as bulk specific gravity and dimensional change rate (in the papermaking direction and horizontal direction) were measured. The results are shown in Table 1. (Comparative Example 1) Without providing a recess in the molded product, the product is propped up (165+a2/
A construction board was produced in the same manner as in the example except that it was autoclaved in step 3). The physical properties of this product are shown in Table 1. (Comparative Example 2) A construction board was manufactured in the same manner as in Example 1 except that the molded product was naturally cured. The physical properties of this product are shown in Table 1. tJS1 front bending strength (kg/cI62) Perpendicular to the papermaking direction 239 247 205 Horizontal to the papermaking direction 192 179 205 Water absorption rate (
%) 20.7 21.5 20.7
Sokaju 1,69 1,67 1.
69 dimensions' (0/ 0.18 0.1
4 0.28 From the results in Table 1, it can be seen that although the examples of the present invention can increase productivity, the physical properties of the obtained architectural boards are not practically problematic compared to the comparative examples. It turned out that there was no significant difference. Effects of the Invention In the present invention, a large number of recesses are formed on at least one side of a molded product, and the molded products having the recesses are stacked and cured in an autoclave. During curing, blocking occurs even when stacked. Moreover, since the molded product is cured uniformly and steam passes through the concave portions, architectural boards with a small rate of dimensional change can be obtained.Furthermore, since they can be stacked and cured, a large number of boards can be cured at one time. It is something that can increase productivity.
第１図は本発明におけるオートクレーブ養生を示す概略
図、第２図は同上における成形品を積み重ねた状態を示
す正面図、第３図は同上における成形品を示す断面図で
あって、１は成形品、２は凹部、３はパレット、４は鉄
板、５は養生缶である。
代理人 弁理士 万 １）艮 七Fig. 1 is a schematic diagram showing autoclave curing in the present invention, Fig. 2 is a front view showing a state in which the molded products in the above are stacked, and Fig. 3 is a cross-sectional view showing the molded products in the same as the above, where 1 is a molded product. 2 is a recess, 3 is a pallet, 4 is an iron plate, and 5 is a curing can. Agent Patent attorney 1) Ai 7
Claims (1)
トクレーブ養生する建築用板の製造方法において、成形
賦形した成形品の少なくとも片面に多数の凹部を形成し
、この凹部を有する成形品を積み重ねてオートクレーブ
養生することを特徴とする建築用板の製造方法。(1) A method for producing a building board in which a cement composition is molded into a plate shape and then cured in an autoclave, in which a large number of recesses are formed on at least one side of the molded product, and the molded product has the recesses. A method for producing architectural boards, characterized by stacking them and curing them in an autoclave.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3229288A JPH01208379A (en) | 1988-02-15 | 1988-02-15 | Production of board for building construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3229288A JPH01208379A (en) | 1988-02-15 | 1988-02-15 | Production of board for building construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01208379A true JPH01208379A (en) | 1989-08-22 |
Family
ID=12354885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3229288A Pending JPH01208379A (en) | 1988-02-15 | 1988-02-15 | Production of board for building construction |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01208379A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0825331A (en) * | 1994-07-19 | 1996-01-30 | Sumitomo Forestry Co Ltd | Manufacture of tile panel |
| JP2011173272A (en) * | 2010-02-23 | 2011-09-08 | Kmew Co Ltd | Ceramic building material and method for manufacturing the same |
-
1988
- 1988-02-15 JP JP3229288A patent/JPH01208379A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0825331A (en) * | 1994-07-19 | 1996-01-30 | Sumitomo Forestry Co Ltd | Manufacture of tile panel |
| JP2011173272A (en) * | 2010-02-23 | 2011-09-08 | Kmew Co Ltd | Ceramic building material and method for manufacturing the same |
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