JP2633788B2 - Method for manufacturing flexible fire-resistant building board - Google Patents
Method for manufacturing flexible fire-resistant building boardInfo
- Publication number
- JP2633788B2 JP2633788B2 JP36156492A JP36156492A JP2633788B2 JP 2633788 B2 JP2633788 B2 JP 2633788B2 JP 36156492 A JP36156492 A JP 36156492A JP 36156492 A JP36156492 A JP 36156492A JP 2633788 B2 JP2633788 B2 JP 2633788B2
- Authority
- JP
- Japan
- Prior art keywords
- mixture
- building board
- wood
- bending
- resistant building
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は可撓性を有し曲面加工が
可能な耐火建築板の製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a fire-resistant building board which is flexible and can be curved.
【0002】[0002]
【従来の技術】最近ビルディング等の建築物には曲面屋
根が適用されるケースが増加しつゝある。該曲面屋根は
例えば繊維セメント板等の耐火建築板(野地板)の上側
に金属板を葺く構造を有しているが、この場合耐火建築
板として曲面を有するものを使用する必要がある。従
来、曲面を有する耐火建築板を製造するにはこの種の耐
火建築板が可撓性に乏しいため、曲げ加工の出来る程度
の薄い板を曲げ加工し、これを複数層積重ねて所定の板
厚とする方法、成形型等によって曲面を有する板を成形
する方法(特開平4−100258号)、小幅な短冊状
の板を繋ぎ合わせて曲面を形成する方法等が提供されて
いる。2. Description of the Related Art Recently, curved roofs are increasingly applied to buildings such as buildings. The curved roof has, for example, a structure in which a metal plate is laid on the upper side of a fire-resistant building board (field board) such as a fiber cement board. In this case, it is necessary to use a fire-resistant building board having a curved surface. Conventionally, in order to manufacture a fire-resistant building board having a curved surface, since this type of fire-resistant building board is poor in flexibility, a thin board that can be bent is bent, and a plurality of layers are stacked to a predetermined thickness. , A method of forming a plate having a curved surface using a molding die or the like (Japanese Patent Laid-Open No. 4-100258), and a method of joining curved narrow strip-shaped plates to form a curved surface.
【0003】[0003]
【発明が解決しようとする課題】しかしながら薄い板を
曲げ加工し複数層積重ねる方法では曲げ加工や積層に非
常な手間を要し実用的でなく、成形型等によって成形す
る方法では種々の曲率半径の板を成形するためにはそれ
に対応して種々の成形型が必要であり、費用がかゝりか
つ生産効率が低くなる。また小幅な短冊状の板を繋ぎ合
わせる方法では曲面形状が多角形状となって良好な外観
が得られずまた繋ぎ合わせの手間もかゝる。However, the method of bending a thin plate and stacking a plurality of layers requires a lot of labor for bending and lamination, and is not practical. The method of forming with a mold or the like has various radii of curvature. In order to form such a plate, various molds are required correspondingly, which is costly and reduces production efficiency. In addition, in the method of joining narrow strip-shaped plates, the curved surface shape becomes a polygonal shape, so that a good appearance cannot be obtained, and it takes time and effort to join.
【0004】[0004]
【課題を解決するための手段】本発明は上記従来の課題
を解決するための手段として、分枝および/または彎曲
および/または折曲させることによって嵩高くせしめた
木質繊維束と、木片と、セメントと中空または多孔性の
珪酸含有無機粉末との混合物を主体とする硬化性無機粉
体との混合物を板状に加圧成形するとともに60〜80
℃の温度で予備養生を行ない、その後140〜150℃
の飽和蒸気中でオートクレーブ養生を行なう可撓性耐火
建築板の製造方法を提供し、該可撓性耐火建築板に用い
る木質繊維束は上記混合物に15〜25重量%、上記木
片は上記混合物に5〜10重量%の範囲で配合される可
撓性耐火建築板の製造方法を提供するものである。SUMMARY OF THE INVENTION According to the present invention, as a means for solving the above-mentioned conventional problems, a wooden fiber bundle which is made bulky by branching and / or bending and / or bending, a piece of wood, A mixture of cement and a curable inorganic powder mainly composed of a mixture of hollow or porous silicic acid-containing inorganic powder is formed into a plate-like shape under pressure, and is subjected to 60-80.
Preliminary curing at a temperature of 140 ° C.
The present invention provides a method for producing a flexible refractory building board which is subjected to autoclave curing in saturated steam of the above, wherein the wood fiber bundle used for the flexible refractory building board is 15 to 25% by weight based on the mixture, and the wood chips are based on the mixture. An object of the present invention is to provide a method for producing a flexible refractory building board mixed in a range of 5 to 10% by weight.
【0005】本発明は補強材として木質繊維束を用いる
ことを特徴とするものである。そして本発明においては
該木質繊維束は木質単繊維の集束体であり、そして該木
質繊維束は分枝および/または彎曲および/または折曲
させることによって嵩高くせしめられる。このような分
枝および/または彎曲および/または折曲させることに
よって嵩高くされた木質繊維束を製造するには苛性ソー
ダ、亜硫酸ソーダ、亜硫酸カルシウム等の薬液に木材を
浸漬したり、木材を蒸気で加熱したり、あるいは上記薬
液浸漬と蒸気加熱とを併用したりすることによって木材
中に含まれる木質単繊維のバインダーの役割をしている
リグニン、ヘミセルロース、樹脂等を完全に溶解させる
ことなく膨潤させるにとどめた上で上記バインダーを残
存させつゝ解繊したものであり、上記バインダーのうち
特にリグニンを略完全に除去して解繊したパルプ繊維に
比して径が大である。そして該木質繊維束は径が約0.
1〜2.0mmの範囲にあり、長さは約2〜35mmの範
囲、望ましくは10〜30mmの範囲にあるものが望まし
い。そして該木質繊維束を分枝および/または彎曲およ
び/または折曲させることによって嵩高くせしめるには
上記バインダーの膨潤の程度および解繊の程度を調節す
る。解繊は例えばグラインディングディスクにより行な
われ、解繊の程度の調節は該グラインディングのディス
クの間隙を調節することによって行なわれる。[0005] The present invention is characterized in that a wood fiber bundle is used as a reinforcing material. And in the present invention, the wood fiber bundle is a bundle of wood monofilaments, and the wood fiber bundle is made bulky by branching and / or bending and / or bending. In order to produce a wood fiber bundle which is bulked by branching and / or bending and / or bending, wood is immersed in a chemical solution such as caustic soda, sodium sulfite, calcium sulfite, or the wood is steamed. Heating or swelling without completely dissolving lignin, hemicellulose, resin, etc., which serves as a binder for woody single fibers contained in wood, by using the chemical solution immersion and steam heating together And defibrated by leaving the above-mentioned binder remaining, and has a larger diameter than pulp fibers defibrated by almost completely removing lignin, in particular, from the above-mentioned binder. And the wood fiber bundle has a diameter of about 0.3 mm.
It is preferably in the range of 1 to 2.0 mm and the length is in the range of about 2 to 35 mm, preferably in the range of 10 to 30 mm. In order to make the wood fiber bundle bulky by branching and / or bending and / or bending, the degree of swelling and the degree of defibration of the binder are adjusted. The defibration is performed, for example, with a grinding disk, and the degree of defibration is adjusted by adjusting the gap between the grinding disks.
【0006】本発明に用いられる木片は巾が0.5〜2
mm、長さが1〜20mm、アスペクト比(長さ/厚み)2
0〜30のものが望ましい。The wood used in the present invention has a width of 0.5-2.
mm, length 1-20mm, aspect ratio (length / thickness) 2
The thing of 0-30 is desirable.
【0007】本発明に用いられる硬化性無機粉体は、セ
メントと、パーライト、フライアッシュ、シラスバルー
ン、珪藻土等の中空または多孔性の珪酸含有無機粉末の
一種または二種以上とを主体とするものであるが、更に
高炉スラグ、ベントナイト等が添加されてもよく、また
所望なれば塩化カルシウム、塩化マグネシウム、硫酸ア
ルミニウム、アルミン酸ソーダ、水ガラス等の硬化促進
剤や防水剤が添加されてもよい。The curable inorganic powder used in the present invention is mainly composed of cement and one or more kinds of hollow or porous silicic acid-containing inorganic powders such as perlite, fly ash, shirasu balloon, diatomaceous earth and the like. However, blast furnace slag, bentonite and the like may be further added, and if desired, a hardening accelerator or a waterproofing agent such as calcium chloride, magnesium chloride, aluminum sulfate, sodium aluminate, and water glass may be added. .
【0008】上記硬化性無機粉体には上記木質繊維束と
木片とが混合されるが、通常上記混合物中にセメントは
50〜60重量%、望ましくは55〜58重量%、中空
または多孔性珪酸含有無機粉末が15〜30重量%、望
ましくは20〜25重量%、硬化促進剤を添加する場合
は0.4〜1.0重量%、望ましくは0.6〜0.8重
量%程度添加され、また上記木質繊維束は通常15〜2
5重量%、上記木片は通常5〜10重量%程度添加され
る。[0008] The wood fiber bundle and the wood chips are mixed with the hardening inorganic powder. Usually, 50 to 60% by weight, preferably 55 to 58% by weight of cement is contained in the mixture, and hollow or porous silica is used. The content of the inorganic powder is 15 to 30% by weight, preferably 20 to 25% by weight, and when a curing accelerator is added, 0.4 to 1.0% by weight, preferably about 0.6 to 0.8% by weight. The wood fiber bundle is usually 15 to 2
5% by weight, and the above wood chips are usually added in an amount of about 5 to 10% by weight.
【0009】上記混合物は板状に加圧成形される。上記
混合物を板状に加圧成形するには型板上に上記混合物を
散布してマット状にするが、連続製造法においては上記
型板は多数個ベルトコンベア上に載置せしめられる。型
板上に散布された混合物は所望なればロール等によって
若干押圧され、該マットはそれから水分存在下に圧締し
て予備養生されて所望の形状に成形される。水分添加量
は通常上記混合物中に30〜45重量%含まれるように
する。上記予備養生は通常圧締圧10〜20Kgf /c
m2 、温度60〜80℃、12〜24時間行なわれ、加
熱は通常蒸気で行なわれる。圧締は二つの型板間に上記
マットを挾圧することによって行なわれるが、該型板面
には所定の形状、凹凸模様等が施されてもよい。The above mixture is pressure-formed into a plate shape. In order to press-mold the mixture into a plate shape, the mixture is sprayed on a template to form a mat. In a continuous production method, a large number of the templates are placed on a belt conveyor. The mixture spread on the template is pressed slightly by a roll or the like, if desired, and the mat is then pressed and cured in the presence of moisture to obtain a desired shape. The amount of water to be added is usually 30 to 45% by weight in the above mixture. The above pre-curing is usually performed with a pressure of 10 to 20 kgf / c.
m 2 , temperature 60 to 80 ° C., 12 to 24 hours, and heating is usually performed with steam. Pressing is performed by clamping the mat between two mold plates, but the mold plate surface may be given a predetermined shape, an uneven pattern, or the like.
【0010】上記予備養生によって成形された予備成形
体はその後オートクレーブ中にて養生される。上記オー
トクレーブ養生は通常圧力2.7〜3.9Kgf /cm2 、
飽和温度140〜150℃で8〜24時間、望ましくは
8〜15時間行なわれる。このようにして本発明の可撓
性耐火建築板が得られる。The preformed body formed by the above precuring is then cured in an autoclave. The autoclave curing is usually performed at a pressure of 2.7 to 3.9 kgf / cm 2 ,
The reaction is carried out at a saturation temperature of 140 to 150 ° C. for 8 to 24 hours, preferably 8 to 15 hours. Thus, the flexible fire-resistant building board of the present invention is obtained.
【0011】[0011]
【作用】本発明の可撓性耐火建築板に用いられる木質繊
維束は分枝および/または彎曲および/または折曲させ
ることによって嵩高くせしめられているので、得られた
製品のマトリクス中で該木質繊維束はある程度の距離を
介して強固に絡み合い、このような特異的な補強効果に
よって可撓性があり、かつ強度の高い製品が得られる。
しかし上記木質繊維束のみでは上記絡み合いにより硬化
性無機粉体と混合した場合の混合分散性が悪化するの
で、木片を添加すると該混合物の混合分散性が改良され
る。本発明の硬化性無機粉体においてはセメントに中空
または多孔性の珪酸含有無機粉末が添加されるが、上記
中空または多孔性の珪酸含有無機粉末を使用すると、従
来の珪砂、珪石粉等の珪酸含有無機粉末に比して製品の
曲げヤング率が約20%程度低くなることが見出され
た。本発明では更にオートクレーブ養生温度を150℃
以下に限定して補強材である上記木質繊維束の劣化を抑
制するが、140℃未満では硬化性無機粉体の硬化が円
滑に起らない。The wood fiber bundle used in the flexible refractory building board of the present invention is made bulky by branching and / or bending and / or bending, so that the fiber bundle is obtained in the matrix of the obtained product. The wood fiber bundles are firmly entangled over a certain distance, and a flexible and high-strength product is obtained by such a specific reinforcing effect.
However, when the wood fiber bundle alone is used, the mixing and dispersibility when mixed with the curable inorganic powder deteriorates due to the entanglement. Therefore, the addition of wood chips improves the mixing and dispersibility of the mixture. In the curable inorganic powder of the present invention, a hollow or porous silicic acid-containing inorganic powder is added to cement, but when the hollow or porous silicic acid-containing inorganic powder is used, conventional silica sand or silica powder such as silica powder is used. It was found that the bending Young's modulus of the product was reduced by about 20% as compared with the contained inorganic powder. In the present invention, the autoclave curing temperature is further increased to 150 ° C.
Deterioration of the wood fiber bundle, which is a reinforcing material, is suppressed to the following, but at less than 140 ° C., hardening of the hardenable inorganic powder does not occur smoothly.
【0012】[0012]
〔実施例1〕木材を亜硫酸ソーダの薬液に浸漬し容積膨
潤した木材片を更に蒸気加熱すると共にグラインディン
グディスクで解繊した嵩高木質繊維束(直径0.5〜
1.5mm,長さ10〜30mm)9.6重量%と、木材チ
ップをパールマンフレーカーにより巾0.5〜2mm、長
さ1〜20mm、アスペクト比20〜30に細片化した木
片8.8重量%とを混合する。ポルトランドセメント5
6.8重量%とフライアッシュ24.8重量%とを混合
し前記の木質補強材と共に湿式混合した原料に、硬化促
進剤として塩化マグネシウムを全固形分に対して0.4
重量%と、防水剤としてパラフィンエマルジョンを全固
形分に対して0.2重量%を溶解した添加水を全固形分
に対して36重量%の割合で添加して均一に攪拌混合し
て湿潤混合物とする。該湿潤混合物を下型板上に散布し
て厚さ100mmのマットとし、該マット上に上型板を当
接して圧力35Kgf/cm2 で押圧、圧締の後、雰囲気温度
70℃にて24時間加熱して予備養生を行なう。得られ
た成形体は厚み18.0mmの板状体であり、該成形体は
その後圧力3.25Kgf/cm2 G、飽和蒸気温度145℃
の条件で8時間オートクレーブ養生する。このようにし
て得られた試験板Aの物性測定の結果は表1に示され
る。Example 1 A piece of woody fiber immersed in a sodium sulfite solution and swelled in volume was further heated by steam, and furthermore, a bulky wood fiber bundle (diameter of 0.5 to
(1.5 mm, length 10 to 30 mm) 9.6% by weight, and wood chips obtained by cutting wood chips into pieces having a width of 0.5 to 2 mm, a length of 1 to 20 mm, and an aspect ratio of 20 to 30 using a Pearlman Flaker. 8% by weight. Portland cement 5
6.8% by weight and 24.8% by weight of fly ash were mixed and wet-mixed with the wood reinforcing material, and magnesium chloride as a hardening accelerator was added in an amount of 0.4% based on the total solid content.
% By weight, and added water in which a paraffin emulsion as a waterproofing agent is dissolved at 0.2% by weight based on the total solid content is added at a ratio of 36% by weight based on the total solid content, and the mixture is uniformly stirred and mixed to obtain a wet mixture. And The wet mixture was sprayed on a lower mold plate to form a mat having a thickness of 100 mm. The upper mold plate was brought into contact with the mat and pressed at a pressure of 35 kgf / cm 2. Pre-curing by heating for hours. The obtained molded body was a plate-like body having a thickness of 18.0 mm, and the molded body was thereafter subjected to a pressure of 3.25 kgf / cm 2 G and a saturated steam temperature of 145 ° C.
Autoclave curing for 8 hours under the conditions described above. Table 1 shows the measurement results of the physical properties of the test plate A thus obtained.
【0013】〔比較例1〕実施例1に記載の嵩高木質繊
維束と木片とを使用して下記の配合比で湿潤混合物を調
製した。 上記湿潤混合物を実施例1と同様に予備養生して板状体
を得、該板状体を圧力6.2Kgf/cm2 G、飽和蒸気温度
165℃の条件で8時間オートクレーブ養生を行なっ
た。このようにして得られた試験板Bの物性測定の結果
は表1に示される。Comparative Example 1 A wet mixture was prepared using the bulky wood fiber bundle described in Example 1 and a piece of wood at the following mixing ratio. The wet mixture was pre-cured in the same manner as in Example 1 to obtain a plate-like body, and the plate-like body was subjected to autoclave curing at a pressure of 6.2 kgf / cm 2 G and a saturated steam temperature of 165 ° C. for 8 hours. Table 1 shows the measurement results of the physical properties of the test plate B thus obtained.
【0014】〔比較例2〕実施例1の木片を使用して下
記の配合比により従来の製法に従って木片セメント板を
製造した。 上記湿潤混合物を実施例1と同様に予備養生を行なって
板状体を得、該板状体を積重ね7日間自然養生し試験板
Cを得た。試験板Cの物性測定の結果は表1に示され
る。COMPARATIVE EXAMPLE 2 A wood chip cement board was manufactured from the wood piece of Example 1 in accordance with the conventional manufacturing method at the following compounding ratio. The wet mixture was pre-cured in the same manner as in Example 1 to obtain a plate, and the plate was stacked and naturally cured for 7 days to obtain a test plate C. Table 1 shows the measurement results of the physical properties of the test plate C.
【0015】[0015]
【表1】 [Table 1]
【0016】*:物性はコンピューター計測制御式精密
万能試験機(島津オートグラフAGS−500A)によ
って、荷重とたわみ量との関係を測定することによって
求められた。試験はA,B,C共に縦500mm,横40
0mm,厚み18mmの寸法とした。荷重とたわみ量との関
係を表すグラフを図1(試験板A),図2(試験板
B),図3(試験板C)に示す。 **:エネルギー(曲げ破壊仕事量)は夫々図1,図
2,図3のグラフを積分することによって得られ、該エ
ネルギーの量が多い程可撓性が大になる。*: Physical properties were determined by measuring the relationship between load and deflection using a computer-measured and controlled precision universal testing machine (Shimadzu Autograph AGS-500A). The test is 500mm long and 40mm wide for A, B and C.
The dimensions were 0 mm and the thickness was 18 mm. Graphs showing the relationship between the load and the amount of deflection are shown in FIG. 1 (test plate A), FIG. 2 (test plate B), and FIG. 3 (test plate C). **: Energy (bending work) is obtained by integrating the graphs of FIGS. 1, 2 and 3, respectively, and the greater the amount of energy, the greater the flexibility.
【0017】表1をみれば本発明の試験板Aは厚さ18
mmで曲率半径4mまで曲げ加工が可能であるのに対し
て、150℃以上の高温でオートクレーブ養生された試
験板Bは厚さ18mmで曲率半径9mまでの曲げ加工にと
どまり、また補強材として木片のみを使用しかつ中空ま
たは多孔性の珪酸含有無機粉末を使用しない試験板Cは
厚さ18mmで曲率半径14mまでの曲げ加工にとどまっ
た。According to Table 1, the test plate A of the present invention has a thickness of 18
In contrast to the test plate B autoclaved at a high temperature of 150 ° C. or more, the test plate B can be bent to a thickness of 18 mm and a radius of curvature of 9 m. The test plate C using only the powder and not using the hollow or porous silicic acid-containing inorganic powder was bent to a thickness of 18 mm and a radius of curvature of 14 m.
【0018】[0018]
【発明の効果】したがって、本発明においては曲率半径
の小さな曲げ加工が可能で曲面屋根の耐火野地板等とし
て有用な可撓性耐火建築板が得られる。Accordingly, in the present invention, it is possible to obtain a flexible fire-resistant building board which can be bent with a small radius of curvature and is useful as a fire-resistant base plate for a curved roof.
【図1】試験板Aの荷重−たわみ量のグラフFIG. 1 is a graph of load-deflection amount of a test plate A.
【図2】試験板Bの荷重−たわみ量のグラフFIG. 2 is a graph of load-deflection amount of a test plate B.
【図3】試験板Cの荷重−たわみ量のグラフFIG. 3 is a graph of load-deflection amount of a test plate C;
───────────────────────────────────────────────────── 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 28/16 16:02 18:26) ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification code Agency reference number FI Technical indication (C04B 28/16 16:02 18:26)
Claims (2)
曲させることによって嵩高くせしめた木質繊維束と、木
片と、セメントと中空または多孔性の珪酸含有無機粉末
との混合物を主体とする硬化性無機粉体との混合物を板
状に加圧成形するとともに60〜80℃の温度で予備養
生を行ない、その後140〜150℃の飽和蒸気中でオ
ートクレーブ養生を行なうことを特徴とした可撓性耐火
建築板の製造方法1. Hardening based on a mixture of wood fiber bundles, wood chips, cement and hollow or porous silicic acid-containing inorganic powder, which are made bulky by branching and / or bending and / or bending. The mixture is formed into a plate-like mixture with the inorganic powder under pressure, preliminarily cured at a temperature of 60 to 80 ° C, and then subjected to autoclave curing in saturated steam at 140 to 150 ° C. Manufacturing method of fire-resistant building board
重量%、上記木片は上記混合物に5〜10重量%の範囲
で配合される請求項1に記載の可撓性耐火建築板の製造
方法2. The wood fiber bundle is added to the mixture in an amount of 15 to 25.
The method for producing a flexible fire-resistant building board according to claim 1, wherein the wood chips are mixed with the mixture in a range of 5 to 10% by weight.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP36156492A JP2633788B2 (en) | 1992-12-28 | 1992-12-28 | Method for manufacturing flexible fire-resistant building board |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP36156492A JP2633788B2 (en) | 1992-12-28 | 1992-12-28 | Method for manufacturing flexible fire-resistant building board |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH06199554A JPH06199554A (en) | 1994-07-19 |
JP2633788B2 true JP2633788B2 (en) | 1997-07-23 |
Family
ID=18474085
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP36156492A Expired - Fee Related JP2633788B2 (en) | 1992-12-28 | 1992-12-28 | Method for manufacturing flexible fire-resistant building board |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2633788B2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2931768B2 (en) * | 1994-12-22 | 1999-08-09 | ニチハ株式会社 | Method for producing inorganic molded plate |
JP3318487B2 (en) * | 1996-05-24 | 2002-08-26 | ニチハ株式会社 | Manufacturing method of wood chip cement board |
-
1992
- 1992-12-28 JP JP36156492A patent/JP2633788B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH06199554A (en) | 1994-07-19 |
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