JPH07291763A - Production of inorganic plate - Google Patents
Production of inorganic plateInfo
- Publication number
- JPH07291763A JPH07291763A JP8696994A JP8696994A JPH07291763A JP H07291763 A JPH07291763 A JP H07291763A JP 8696994 A JP8696994 A JP 8696994A JP 8696994 A JP8696994 A JP 8696994A JP H07291763 A JPH07291763 A JP H07291763A
- Authority
- JP
- Japan
- Prior art keywords
- cement
- inorganic plate
- molding material
- base layer
- autoclave
- 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
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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/02—Selection of the hardening environment
- C04B40/024—Steam hardening, e.g. in an autoclave
-
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/20—Mica; Vermiculite
- C04B14/202—Vermiculite
-
- 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、無機質板の製造方法に
関し、具体的には、建築用板などに利用するのに有用な
無機質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 an inorganic plate, and more particularly to a method for manufacturing an inorganic plate useful for building boards and the like.
【０００２】[0002]
【従来の技術】従来から、無機質板の製造方法として
は、水硬性セメントと水とを主成分とするスラリーから
成形した基材を基層とし、この基層の上にシラス、パー
ライトなどの骨材と水硬性セメントを主成分とするセメ
ント成形材料を載せて表層とし、この表層と上記基層か
らなる複層体を加圧成形した後、この複層体を湿熱状態
で養生し、さらに、オートクレーブ中で養生硬化させる
方法が知られていた。このように、複層体にすること
で、基層は合板などに釘打ちや接着などの施工を施すこ
とができ、表層は凹凸模様などを所望の形状に付与する
ことができ、従来から有用なものであった。2. Description of the Related Art Conventionally, as a method for producing an inorganic board, a base material formed from a slurry containing hydraulic cement and water as main components is used as a base layer, and aggregates such as shirasu and pearlite are provided on the base layer. A cement molding material containing hydraulic cement as a main component is placed as a surface layer, and after pressure-molding a multi-layer body consisting of this surface layer and the above-mentioned base layer, this multi-layer body is cured in a wet heat state, and further in an autoclave. A method of curing and hardening was known. Thus, by forming a multilayer, the base layer can be subjected to construction such as nailing or adhesion to plywood and the like, and the surface layer can be provided with an uneven pattern or the like in a desired shape, which is conventionally useful. It was a thing.
【０００３】しかし、このような無機質板の製造方法に
おいては、表層をなすセメント成形材料がオートクレー
ブ中で不安定なシリカ鉱物と水硬性セメントの水和によ
って生じた水酸化アルカリとが化学反応を起こし、アル
カリシリケートをつくって水分を吸収して膨張するとい
うアルカリ骨材反応を起こすという問題があった。すな
わち、このアルカリ骨材反応で表層が膨張して、基層と
表層の間に歪みが生じ、複層体が反り易いという欠点が
あった。However, in such a method for producing an inorganic plate, the cement molding material constituting the surface layer undergoes a chemical reaction between the unstable silica mineral and the alkali hydroxide generated by the hydration of the hydraulic cement in the autoclave. However, there is a problem that an alkali-aggregate reaction occurs in which an alkali silicate is made to absorb water and expand. That is, there is a drawback in that the surface layer expands due to the reaction of the alkaline aggregate, strain occurs between the base layer and the surface layer, and the multilayer body easily warps.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、上記の欠点
を除去するためになされたもので、その目的とするとこ
ろは、オートクレーブ中での養生において生じる複層体
の反りを小さくすることができる無機質板の製造方法を
提供することにある。SUMMARY OF THE INVENTION The present invention has been made in order to eliminate the above-mentioned drawbacks, and an object of the present invention is to reduce the warp of a multilayer body which occurs during curing in an autoclave. An object of the present invention is to provide a method of manufacturing an inorganic plate that can be used.
【０００５】[0005]
【課題を解決するための手段】本発明に係る無機質板の
製造方法は、水硬性セメントと水とを主成分とするスラ
リーから成形した基材を基層とし、この基層の上に水硬
性セメントを主成分とするペースト状のセメント成形材
料を載せて表層とし、この表層と上記基層からなる複層
体を加圧成形した後、この複層体をオートクレーブ中で
養生硬化させる無機質板の製造方法において、上記セメ
ント成形材料にバーミキュライトが配合されたことを特
徴とする。The method for producing an inorganic plate according to the present invention comprises a base material formed from a slurry containing hydraulic cement and water as main components, and a hydraulic cement on the base layer. In the method for producing an inorganic plate, in which a paste-like cement molding material as a main component is placed on the surface layer, and after pressure-molding a multi-layered body including the surface layer and the base layer, the multi-layered body is cured by curing in an autoclave. The above-mentioned cement molding material is blended with vermiculite.
【０００６】[0006]
【作用】本発明の無機質板の製造方法によると、水硬性
セメントと水とを主成分とするスラリーから成形した基
材を基層とし、この基層の上に水硬性セメントを主成分
とするペースト状のセメント成形材料を載せて表層と
し、この表層と上記基層からなる複層体を加圧成形した
後、この複層体をオートクレーブ中で養生硬化させる無
機質板の製造方法において、上記セメント成形材料にバ
ーミキュライトが配合されたので、表層をなすこのセメ
ント成形材料のバーミキュライトがシラス、パーライト
などの骨材と水硬性セメントとが起こすアルカリ骨材反
応の防止効果を発揮するので、表層での膨張が小さくな
る。すなわち、基層と表層の均衡がはかられ、オートク
レーブ中での養生において生じる複層体の反りを防止す
ることができる。According to the method for producing an inorganic plate of the present invention, a base material formed from a slurry containing hydraulic cement and water as main components is used as a base layer, and a paste containing hydraulic cement as main components is formed on the base layer. As a surface layer on which the cement molding material is placed, and after pressure-molding the multilayer body consisting of the surface layer and the base layer, in the method for producing an inorganic plate in which the multilayer body is cured by curing in an autoclave, the cement molding material Since vermiculite is mixed, the vermiculite of this cement molding material that forms the surface layer exhibits the effect of preventing the alkaline aggregate reaction caused by aggregates such as shirasu and perlite and hydraulic cement, so the expansion in the surface layer is reduced. . That is, the base layer and the surface layer are balanced, and the warp of the multi-layer body that occurs during curing in the autoclave can be prevented.
【０００７】以下、本発明を詳しく説明する。本発明の
無機質板の製造方法は、例えば、次の工程に沿って実施
される。The present invention will be described in detail below. The method for producing an inorganic plate of the present invention is carried out, for example, along the following steps.
【０００８】まず、ハチェック方式、長網方式などで基
材を抄造する。この基材を基層とし、この基層の上にポ
ルトランドセメント、フライアッシュセメント、高炉セ
メントなどの水硬性セメントを主成分とする、パルプ
粉、並びに御影石、蛇紋石などの砕石、シラスバルー
ン、ガラスバルーン、シリカ、パーライト、砂、およ
び、ビーズなどの骨材から構成されるセメント成形材料
を振動フルイなどによって載せて、表層が形成される。
この表層と上記基層は、水圧により所定の寸法に切断さ
れ、バッチ方式で圧力３０ｋｇ／ｃｍ2 、時間５秒間の
加圧成形を行うと、複層体を得る。この複層体は、加圧
成形時に凹凸模様を付与してもよく、さらに、凹凸模様
や溝などはランダムに一部または全面に形成されてもよ
く、意匠上自由に選択されるものである。次に、オート
クレーブ中で１５０〜２００℃の温度で、７〜１５ｈｒ
養生硬化されて無機質板が得られる。なお、このオート
クレーブ養生の前に、必要に応じて複層体を常温で２〜
５ｈｒ放置し、その後、水蒸気を満たした８０〜９０℃
の温度で１０〜１００ｈｒの湿熱養生を行なうなどの方
法を採ることもできる。First, the base material is made into paper by the Haschek method, the Fourdrinier method or the like. This base material as a base layer, Portland cement on this base layer, fly ash cement, mainly composed of hydraulic cement such as blast furnace cement, pulp powder, and granite, crushed stones such as serpentine, shirasu balloon, glass balloon, A cement molding material composed of silica, perlite, sand, and aggregates such as beads is placed by a vibration sieve or the like to form a surface layer.
The surface layer and the base layer are cut into a predetermined size by hydraulic pressure and subjected to pressure molding in a batch system at a pressure of 30 kg / cm 2 for a time of 5 seconds to obtain a multilayer body. This multilayer body may be provided with a concavo-convex pattern at the time of pressure molding, and the concavo-convex pattern and grooves may be randomly formed on a part or the entire surface, which is freely selected in terms of design. . Next, in an autoclave at a temperature of 150 to 200 ° C. for 7 to 15 hours.
It is cured and cured to obtain an inorganic plate. Before this autoclave curing, the multi-layer body may be heated at room temperature for 2 to 2 times if necessary.
Leave for 5 hours, then 80-90 ° C filled with water vapor
It is also possible to adopt a method such as performing heat and humidity curing for 10 to 100 hours at the temperature of.
【０００９】本発明にあって、基材は、例えば、ハチェ
ック方式、あるいは、長網方式などにより抄造されるも
のであり、スラリーは、ポルトランドセメントなどの水
硬性セメントを主成分として補強用の繊維類などが配合
されたものでよく、特に、その組成に限定されるもので
はない。In the present invention, the base material is produced by, for example, the Hatschek method or the Fourdrinier method, and the slurry is mainly composed of hydraulic cement such as Portland cement for reinforcement. It may be a mixture of fibers and the like, and the composition thereof is not particularly limited.
【００１０】基材からなる基層の上にセメント成形材料
を散布するのであるが、この時、基層の含水率は、５０
〜１５０ｗｔ％である。この基層の含水率は、セメント
成形材料の散布厚みと密接な関係があり、散布厚みが大
きいほど含水率を高くするのが好ましいものである。The cement molding material is sprinkled on the base layer composed of the base material, and the water content of the base layer is 50 at this time.
~ 150 wt%. The water content of the base layer has a close relationship with the spray thickness of the cement molding material, and it is preferable that the water content increases as the spray thickness increases.
【００１１】基層に載せるセメント成形材料は、ポルト
ランドセメントなどの水硬性セメントに、骨材、さら
に、パルプ粉を配合したものである。セメント成形材料
は、基層に散布するものであるため基層より含水率が小
さく、好ましくは含水率が５０ｗｔ％以下に調整される
ものである。骨材は、上記御影石、蛇紋石などの砕石、
シリカ、パーライト、砂、および、ビーズなどを一種類
だけ用いてもよいし、複数の種類を混合して用いてもよ
い。The cement molding material to be placed on the base layer is a mixture of hydraulic cement such as Portland cement, aggregate, and pulp powder. Since the cement molding material is sprayed on the base layer, the water content is smaller than that of the base layer, and the water content is preferably adjusted to 50 wt% or less. Aggregates are crushed stones such as the above granite and serpentine,
Only one kind of silica, perlite, sand, beads, or the like may be used, or a plurality of kinds may be mixed and used.
【００１２】また、上記セメント成形材料にバーミキュ
ライトが配合されている。このバーミキュライトが表層
に含まれていると、シラス、パーライトなどの骨材と水
硬性セメントとが起こすアルカリ骨材反応の防止効果を
発揮するので、表層での膨張が小さくなる。すなわち、
基層と表層の均衡がはかられ、オートクレーブ中での養
生において生じる複層体の反りを小さくすることができ
る。Further, vermiculite is blended with the above cement molding material. When this vermiculite is contained in the surface layer, it exerts the effect of preventing the alkali-aggregate reaction caused by aggregates such as shirasu and perlite and hydraulic cement, so that the expansion in the surface layer becomes small. That is,
The base layer and the surface layer are balanced, and the warp of the multilayer body that occurs during curing in the autoclave can be reduced.
【００１３】上記バーミキュライトの配合量は、セメン
ト成形材料の全量に対して５ｗｔ％〜３０ｗｔ％である
ことが好ましく、この配合量であると、効果的にアルカ
リ骨材反応を防止する。したがって、表層での膨張をよ
り小さくすることができ、基層と表層の均衡が充分には
かられ、オートクレーブ中での養生において生じる複層
体の反りをさらに小さくすることができる。The blending amount of the above vermiculite is preferably 5 wt% to 30 wt% with respect to the total amount of the cement molding material, and this blending amount effectively prevents the alkaline aggregate reaction. Therefore, the expansion in the surface layer can be further reduced, the base layer and the surface layer can be sufficiently balanced, and the warp of the multilayer body generated during curing in the autoclave can be further reduced.
【００１４】上記バーミキュライトの配合量が、セメン
ト成形材料の全量に対して５ｗｔ％未満であると、アル
カリ骨材反応の防止効果を充分に発揮することができ
ず、オートクレーブ中での養生において生じる複層体の
反りを小さくすることができないものである。また、得
られた無機質板は、切断性が低いため切断加工の施しに
くいものとなる。このバーミキュライトの配合量が、セ
メント成形材料の全量に対して３０ｗｔ％を越えると、
オートクレーブ中での養生において生じる複層体の反り
を充分に小さくすることができるものの、得られた無機
質板の強度の低下が著しいものである。If the amount of the above vermiculite compounded is less than 5 wt% with respect to the total amount of the cement molding material, the effect of preventing the alkali-aggregate reaction cannot be fully exerted, and the compound produced during curing in the autoclave can be prevented. The warp of the layered body cannot be reduced. In addition, the obtained inorganic plate has low cuttability, and thus is difficult to cut. When the amount of this vermiculite compounded exceeds 30 wt% with respect to the total amount of the cement molding material,
Although it is possible to sufficiently reduce the warp of the multilayer body that occurs during curing in the autoclave, the strength of the obtained inorganic plate is significantly reduced.
【００１５】[0015]
【実施例】以下、本発明の実施例を挙げる。EXAMPLES Examples of the present invention will be given below.
【００１６】実施例１ ポルトランドセメント４０ｗｔ％、ケイ石粉１５ｗｔ
％、パルプ粉５ｗｔ％、フライアッシュ４０ｗｔ％を配
合した基材を長網方式で抄造し、この基材の上にポルト
ランドセメント５５ｗｔ％、ケイ石粉３７ｗｔ％、バー
ミキュライト５ｗｔ％、パルプ粉３ｗｔ％を配合したセ
メント成形材料を３４００ｇｒ／ｍ2 散布して、金型を
用いて、圧力３０ｋｇ／ｃｍ2 で５秒間の加圧成形する
と、複層体が得られた。次に、この複層体は常温で３ｈ
ｒ放置され、８０℃の温度で水蒸気に満たされた雰囲気
をなす湿熱状態で２０ｈｒの養生が行なわれ、さらに、
オートクレーブ中で１７０℃の温度で、１０ｈｒ養生硬
化して無機質板を得た。Example 1 Portland cement 40 wt%, silica stone powder 15 wt
%, Pulp powder 5% by weight, fly ash 40% by weight, a base material is manufactured by a fourdrinier method, and Portland cement 55% by weight, silica stone powder 37% by weight, vermiculite 5% by weight, pulp powder 3% by weight are mixed on this substrate. The cement molding material was sprayed at 3400 gr / m 2 and pressure-molded with a mold at a pressure of 30 kg / cm 2 for 5 seconds to obtain a multilayer body. Next, this multi-layered body is kept at room temperature for 3 hours.
It is left for 20 hours and cured at a temperature of 80 ° C. for 20 hours in a moist heat condition to form an atmosphere filled with water vapor.
An inorganic plate was obtained by curing and curing for 10 hours at a temperature of 170 ° C. in an autoclave.
【００１７】得られた無機質板は、寸法３００ｍｍ×３
００ｍｍに切断して試験片とし、この試験片を平滑な板
上に置いて、試験片と平滑な板との間にできる間隔をＪ
ＩＳ１級金尺を用いて反り量の測定をしたが、どの箇所
にも間隔ができず、０ｍｍであった。The obtained inorganic plate has a size of 300 mm × 3.
A test piece was prepared by cutting it to 00 mm, and this test piece was placed on a smooth plate, and the distance between the test piece and the smooth plate was set to J
The amount of warpage was measured using an IS1 grade metal gauge, but it was 0 mm because no space was formed at any place.
【００１８】実施例２ セメント成形材料の配合が、ポルトランドセメント５１
ｗｔ％、ケイ石粉３６ｗｔ％、バーミキュライト１０ｗ
ｔ％、パルプ粉３ｗｔ％であった以外は、実施例１と同
様の方法で、無機質板を得た。Example 2 The composition of the cement molding material was Portland cement 51.
wt%, silica powder 36 wt%, vermiculite 10w
An inorganic plate was obtained in the same manner as in Example 1 except that t% and pulp powder were 3 wt%.
【００１９】得られた無機質板の反り量は、実施例１と
同様にして測定し、０．５ｍｍであった。The amount of warpage of the obtained inorganic plate was 0.5 mm as measured in the same manner as in Example 1.
【００２０】実施例３ セメント成形材料の配合が、ポルトランドセメント４３
ｗｔ％、ケイ石粉３４ｗｔ％、バーミキュライト２０ｗ
ｔ％、パルプ粉３ｗｔ％であった以外は、実施例１と同
様の方法で、無機質板を得た。Example 3 The composition of the cement molding material was Portland cement 43.
wt%, silica stone powder 34wt%, vermiculite 20w
An inorganic plate was obtained in the same manner as in Example 1 except that t% and pulp powder were 3 wt%.
【００２１】得られた無機質板の反り量は、実施例１と
同様にして測定し、０．５ｍｍであった。The amount of warpage of the obtained inorganic plate was 0.5 mm as measured in the same manner as in Example 1.
【００２２】比較例１ セメント成形材料の配合が、ポルトランドセメント５１
ｗｔ％、ケイ石粉３６ｗｔ％、パーライト１０ｗｔ％、
パルプ粉３ｗｔ％であった以外は、実施例１と同様の方
法で、無機質板を得た。Comparative Example 1 Cement molding material was mixed with Portland cement 51
wt%, silica stone powder 36 wt%, pearlite 10 wt%,
An inorganic plate was obtained by the same method as in Example 1 except that the pulp powder was 3 wt%.
【００２３】得られた無機質板の反り量は、実施例１と
同様にして測定し、５．５ｍｍであった。The amount of warpage of the obtained inorganic plate was 5.5 mm as measured in the same manner as in Example 1.
【００２４】比較例２ セメント成形材料の配合が、ポルトランドセメント４３
ｗｔ％、ケイ石粉３４ｗｔ％、パーライト２０ｗｔ％、
パルプ粉３ｗｔ％であった以外は、実施例１と同様の方
法で、無機質板を得た。Comparative Example 2 Cement molding material was used as Portland cement 43.
wt%, silica stone powder 34wt%, pearlite 20wt%,
An inorganic plate was obtained by the same method as in Example 1 except that the pulp powder was 3 wt%.
【００２５】得られた無機質板の反り量は、実施例１と
同様にして測定し、８．０ｍｍであった。The amount of warpage of the obtained inorganic plate was measured in the same manner as in Example 1 and was 8.0 mm.
【００２６】比較例３ セメント成形材料の配合が、ポルトランドセメント５１
ｗｔ％、ケイ石粉３６ｗｔ％、シラスバルーン１０ｗｔ
％、パルプ粉３ｗｔ％であった以外は、実施例１と同様
の方法で、無機質板を得た。COMPARATIVE EXAMPLE 3 The cement molding material was mixed with Portland cement 51.
wt%, silica powder 36 wt%, Shirasu balloon 10 wt
%, And pulp powder 3 wt%, an inorganic plate was obtained in the same manner as in Example 1.
【００２７】得られた無機質板の反り量は、実施例１と
同様にして測定し、８．５ｍｍであった。The amount of warpage of the obtained inorganic plate was 8.5 mm as measured in the same manner as in Example 1.
【００２８】比較例４ セメント成形材料の配合が、ポルトランドセメント５８
ｗｔ％、ケイ石粉３９ｗｔ％、パルプ粉３ｗｔ％であっ
た以外は、実施例１と同様の方法で、無機質板を得た。Comparative Example 4 Portland cement 58 was used as the cement molding compound.
An inorganic plate was obtained in the same manner as in Example 1, except that the content was wt%, silica powder 39 wt%, and pulp powder 3 wt%.
【００２９】得られた無機質板の反り量は、実施例１と
同様にして測定し、１．０ｍｍであった。The amount of warpage of the obtained inorganic plate was 1.0 mm as measured in the same manner as in Example 1.
【００３０】以下、上述の実施例１〜３と比較例１〜４
で用いたセメント成形材料の配合を表１にまとめておい
た。表１の中の数値は、すべてｗｔ％を示すものであ
る。Hereinafter, Examples 1 to 3 and Comparative Examples 1 to 4 will be described.
Table 1 summarizes the formulation of the cement molding material used in. Numerical values in Table 1 all indicate wt%.
【００３１】[0031]
【表１】 [Table 1]
【００３２】また、上述の実施例１〜３と比較例１〜４
の結果を下記の表２に示した。Further, the above-described Examples 1 to 3 and Comparative Examples 1 to 4
The results are shown in Table 2 below.
【００３３】[0033]
【表２】 [Table 2]
【００３４】表２より、実施例１〜３と比較例１〜４を
比較すると、反り量が実施例１〜３の場合、いずれも０
〜０．５ｍｍであり、比較例１〜４の数値よりもいずれ
も小さいものになっている。つまり、反り量が小さくな
っている。このことから、セメント成形材料にバーミキ
ュライトが配合されると、オートクレーブ中での養生に
おいて生じる複層体の反りを防止できることがわかる。From Table 2, comparing Examples 1 to 3 with Comparative Examples 1 to 4, when the warpage amount is Examples 1 to 3, all are 0.
.About.0.5 mm, which is smaller than the numerical values of Comparative Examples 1 to 4. That is, the warp amount is small. From this, it is understood that when the vermiculite is blended with the cement molding material, the warp of the multilayer body which occurs during curing in the autoclave can be prevented.
【００３５】[0035]
【発明の効果】本発明の無機質板の製造方法によると、
オートクレーブ中での養生において生じる複層体の反り
を小さくすることができる。According to the method for producing an inorganic plate of the present invention,
It is possible to reduce the warp of the multilayer body that occurs during curing in the autoclave.
───────────────────────────────────────────────────── 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 16:02 Ｚ 14:04 Ｚ 18:08 Ｂ 14:20） Ｚ 111:30 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Office reference number FI technical display location C04B 16:02 Z 14:04 Z 18:08 B 14:20) Z 111: 30
Claims (2)
ラリーから成形した基材を基層とし、この基層の上に水
硬性セメントを主成分とするペースト状のセメント成形
材料を載せて表層とし、この表層と上記基層からなる複
層体を加圧成形した後、この複層体をオートクレーブ中
で養生硬化させる無機質板の製造方法において、上記セ
メント成形材料にバーミキュライトが配合されたことを
特徴とする無機質板の製造方法。1. A base material is a base material molded from a slurry containing hydraulic cement and water as main components, and a paste-like cement molding material containing hydraulic cement as a main component is placed on the base layer to form a surface layer. In the method for producing an inorganic plate in which a multilayer body consisting of the surface layer and the base layer is pressure-molded, and then the multilayer body is cured by curing in an autoclave, vermiculite is blended in the cement molding material. A method for producing an inorganic plate.
ト成形材料の全量に対して５ｗｔ％〜３０ｗｔ％である
ことを特徴とする請求項１記載の無機質板の製造方法。2. The method for producing an inorganic plate according to claim 1, wherein the blending amount of the vermiculite is 5 wt% to 30 wt% with respect to the total amount of the cement molding material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8696994A JP3374515B2 (en) | 1994-04-25 | 1994-04-25 | Manufacturing method of inorganic plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8696994A JP3374515B2 (en) | 1994-04-25 | 1994-04-25 | Manufacturing method of inorganic plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07291763A true JPH07291763A (en) | 1995-11-07 |
| JP3374515B2 JP3374515B2 (en) | 2003-02-04 |
Family
ID=13901710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8696994A Expired - Fee Related JP3374515B2 (en) | 1994-04-25 | 1994-04-25 | Manufacturing method of inorganic plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3374515B2 (en) |
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|---|---|---|---|---|
| US7722964B2 (en) | 2006-04-25 | 2010-05-25 | Nichiha Corporation | Fiber reinforced cement board and manufacturing process |
| US7758694B2 (en) | 2006-05-11 | 2010-07-20 | Nichiha Corporation | Fiber reinforced cement composition and products and manufacturing process |
| US7828892B2 (en) | 2004-08-31 | 2010-11-09 | Nichiha Corporation | Inorganic board and a method for the manufacturing thereof |
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| US7879145B2 (en) | 2007-02-14 | 2011-02-01 | Nichiha Corporation | Inorganic composition and products and manufacturing process |
| US7905956B2 (en) | 2006-02-15 | 2011-03-15 | Nichiha Corporation | Fiber reinforced cement composition and products and manufacturing process |
| US7967907B2 (en) | 2007-01-26 | 2011-06-28 | Nichiha Corporation | Fiber reinforced cement composition and products and manufacturing process |
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|---|---|---|---|---|
| US7837788B2 (en) | 2006-09-27 | 2010-11-23 | Nichiha Corporation | Fiber reinforced cement composition and products and manufacturing process |
| US7972433B2 (en) | 2006-12-27 | 2011-07-05 | Nichiha Co., Ltd. | Fiber reinforced cement composition and products and manufacturing process |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7828892B2 (en) | 2004-08-31 | 2010-11-09 | Nichiha Corporation | Inorganic board and a method for the manufacturing thereof |
| US7905956B2 (en) | 2006-02-15 | 2011-03-15 | Nichiha Corporation | Fiber reinforced cement composition and products and manufacturing process |
| US7722964B2 (en) | 2006-04-25 | 2010-05-25 | Nichiha Corporation | Fiber reinforced cement board and manufacturing process |
| US7758694B2 (en) | 2006-05-11 | 2010-07-20 | Nichiha Corporation | Fiber reinforced cement composition and products and manufacturing process |
| US7976626B2 (en) | 2006-09-27 | 2011-07-12 | Nichiha Corporation | Fiber reinforced cement composition and products and manufacturing process |
| US7967907B2 (en) | 2007-01-26 | 2011-06-28 | Nichiha Corporation | Fiber reinforced cement composition and products and manufacturing process |
| US7879145B2 (en) | 2007-02-14 | 2011-02-01 | Nichiha Corporation | Inorganic composition and products and manufacturing process |
| JP2011017147A (en) * | 2009-07-07 | 2011-01-27 | Kagoshima Plant Kk | Reinforced concrete masonry structure, method for constructing the same, and concrete block slab for use in the same |
| CN113459247A (en) * | 2021-07-12 | 2021-10-01 | 杭州富氧环境科技有限公司 | Material capable of efficiently releasing negative oxygen ions and preparation process |
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| Publication number | Publication date |
|---|---|
| JP3374515B2 (en) | 2003-02-04 |
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