JPS5826060A - Construction board - Google Patents
Construction boardInfo
- Publication number
- JPS5826060A JPS5826060A JP12230281A JP12230281A JPS5826060A JP S5826060 A JPS5826060 A JP S5826060A JP 12230281 A JP12230281 A JP 12230281A JP 12230281 A JP12230281 A JP 12230281A JP S5826060 A JPS5826060 A JP S5826060A
- Authority
- JP
- Japan
- Prior art keywords
- board
- calcium sulfite
- present
- anhydrate
- water
- 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
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
- C04B28/14—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 calcium sulfate cements
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)
- Panels For Use In Building Construction (AREA)
- Curing Cements, Concrete, And Artificial Stone (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】
本発明は新規な建材用ボード、＃Ｌ＜は亜硫酸カルシウ
ム製建材用ボードに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a novel board for building materials, #L< is a board for building materials made of calcium sulfite.
建材用ボードの一種であるセラコラボードは。Ceracola board is a type of board for building materials.
＠皺で、加工性９寸法精度及び防火性等において優れて
いるため、建物の内装材として従来より汎用されている
が、耐水性に欠けるため１台所、浴呈等の湿気の多い場
所には用い難い欠点がある。It has excellent workability, dimensional accuracy, and fire resistance, so it has been widely used as interior material for buildings, but it lacks water resistance, so it cannot be used in humid areas such as kitchens and bathrooms. There are drawbacks that make it difficult to use.
一方、大気汚染防止を目的として行なわれている排煙脱
硫によって大鎗の亜硫酸カルシウム牛水和物（Ｃａ８０
ｓ −Ｌ／２ＨｚＯ）が生成される。この亜硫酸カルシ
ウム牛水和物は、それ自体でプラスチック用フィラーと
して用いられることもあるが、大部分は酸化されて排煙
脱硫セラコラにされ、主としてセメント用材料、セラコ
ラボードの主材料として消費されている。On the other hand, due to flue gas desulfurization, which is carried out for the purpose of preventing air pollution, calcium sulfite bovine hydrate (Ca
s −L/2HzO) is generated. This calcium sulfite bovine hydrate is sometimes used by itself as a filler for plastics, but most of it is oxidized into flue gas desulfurization Ceracola, which is consumed primarily as a cement material and the main material for Ceracola board. .
本発明者は、叙上の点に−み、従来のセラコラボードの
優れた性質を保有し、且つ耐水性に富む建材用ボードを
得ることを目的として鋭意硬式した結果、排煙脱硫によ
り副生ずる亜硫酸カルシウム半水和物を酸化することな
く、その結晶水を加熱脱水して亜硫酸カルシウム無水和
物とし、これをそのまま建材用ボード原料として使用す
ることにより、従来のセラコラボードに比して耐水性が
著しく改良され、且つ防火性の向上した建材用ボードが
得られることを知見した。In view of the above points, the present inventor has carried out hardening with the aim of obtaining a board for building materials that retains the excellent properties of the conventional Ceracola board and is highly water resistant. By heating and dehydrating the crystal water without oxidizing calcium hemihydrate to produce calcium sulfite anhydrate, and using this directly as a raw material for building board, it has significantly greater water resistance than conventional Ceracola board. It has been discovered that an improved building board with improved fire resistance can be obtained.
本発明は、上記知見に基づきなされたもので。The present invention was made based on the above findings.
亜硫酸カルシウム無水和物（Ｃａ５Ｏ１）の水和による
硬化体（Ｃａ５Ｏｓ 、ｔ／ｋＨｍｏ ）からなる建材
用ボードを提供するものである。The present invention provides a board for building materials made of a hardened product (Ca5Os, t/kHzmo) obtained by hydration of calcium sulfite anhydrate (Ca5O1).
以下に本発明の建材用ボードをその製造顧様に基づき詳
説する。The building material board of the present invention will be explained in detail below based on its manufacturing customer.
本発明に用いられる亜硫酸カルシウム無水和物は、排煙
脱硫及びその他の化学合成方法によって得られた亜硫酸
カルシウム半水和物結晶を空気中又は窒素中で３５０〜
４５０℃下に加熱することにより得ることができる。Calcium sulfite anhydrate used in the present invention is obtained by preparing calcium sulfite hemihydrate crystals obtained by flue gas desulfurization and other chemical synthesis methods in air or nitrogen at a temperature of 350 to
It can be obtained by heating to 450°C.
本発明の建材用ボードを製造するには、先ず上記亜硫酸
カルシウム無水和物をこれに所定値の水を加えて混練し
、この混練物を所定の型枠に流し込む。この際の上記亜
硫酸カルシウムに対する水の使用量は５０〜１００％が
好ましい。混水量が少な過ぎると混線物の流動性が低下
して型枠に流し込むのが鎧しくなり、また過多忙なると
建材用メートの性状に悪影響を与える。To manufacture the building material board of the present invention, first, the calcium sulfite anhydrate is kneaded with a predetermined amount of water added thereto, and the kneaded product is poured into a predetermined mold. In this case, the amount of water used relative to the calcium sulfite is preferably 50 to 100%. If the amount of mixed water is too small, the fluidity of the mixed material will decrease, making it difficult to pour it into the formwork, and if it is too busy, it will adversely affect the properties of the building material mate.
次に型枠に流し込んだ亜硫酸カルシウム無水和物と水と
の混線物を常湿で硬化させる。この硬化は、型枠流し込
み後１通常５〜１０分程度で凝結が開始し、８０分以内
で終了する。然る後脱型すれば本発明の建材用ボードが
得られる０尚１本発明の実施に際し、目的とする本発明
のボードの種々の物性を改良するために、亜硫酸カルシ
ウム無水和物に焼セツフウ、セツコウ。Next, the mixture of calcium sulfite anhydrate and water poured into the mold is allowed to harden at normal humidity. This hardening usually starts about 5 to 10 minutes after pouring into the mold and ends within 80 minutes. If the board is then removed from the mold, the board for building materials of the present invention can be obtained.1 In carrying out the present invention, in order to improve various physical properties of the board of the present invention, calcium sulfite anhydrate is added to the calcium sulfite anhydrate. , Setsukou.
発泡剤などの添加剤を着干量加配することができる。ま
た、本発明の建材用ボードは、亜硫酸カルシウム無水和
物と水との混練物を型枠に流し込み、これを硬化させて
得られるものであれば、その形状、大きさＫは制限され
ず、平板のまま製品としても良いが、必要に応じてその
両面に板紙等を接着させる等により製品を多様化するこ
とができる。Additives such as foaming agents can be added in dry amounts. In addition, the shape and size K of the building material board of the present invention are not limited as long as it is obtained by pouring a kneaded mixture of calcium sulfite anhydrate and water into a mold and curing it. The flat plate may be used as a product, but if necessary, the product can be diversified by gluing paperboard or the like to both sides of the plate.
また１本発明の建材用ボードの製造に当っては、通常の
セラコラボードの製造装置をそのまま転用できる。Furthermore, in manufacturing the building material board of the present invention, the usual Ceracola board manufacturing equipment can be used as is.
本発明の建材用ボードは、叙上の如く、排煙脱硫によっ
て生成する副産亜硫酸カルシウム牛水和物を酸化するこ
となく、その結晶水を加熱脱水して得た亜硫酸カルシウ
ム無水和物なそのまま原料として使用でき、且つ亜硫酸
カルシウム牛水和物の溶解度は０．００４６ｆ／１ｏａ
ｄ水と小さいため、耐水性に優れ、また亜硫酸カルシウ
ム半水和物の結晶水の加熱脱水温度は３００〜４００℃
と高温であるため、火災に対して優れた防火効果を奏し
、しかも焼セツコウを原料とする従来のセラコラボード
と比べた場合、同等の物理特性ヲ示し、セラツウボード
のもつ軽量性、不燃性９寸法精度、加工性などのすべて
の長所を併Ｈしているものである０
以下に本発明の実施例を示し１本発明の効果を具体的に
明らかにする０
実施例
排煙脱硫によって副生じた亜硫酸カルシウム牛水和物結
晶を空気中で３５０〜４５０℃下に加熱して亜硫酸カル
シウム無水和物を得た。この亜硫酸カルシウム無水和物
に、該無水和物に対し７０ ％の水を加えて混練し、こ
れを型枠に流し込んで硬化させた。硬化後脱型して本発
明に係る硬化体を得た。この硬化体について各種の物理
試験を行なった。その結果は、かさ比重０．８、気孔率
７０％１曲げ強度５０−／♂、圧縮強度１０５−７′ノ
であった。As mentioned above, the board for building materials of the present invention is an anhydrate of calcium sulfite obtained by heating and dehydrating the crystallized water without oxidizing the by-product calcium sulfite bovine hydrate produced by flue gas desulfurization. Can be used as a raw material, and the solubility of calcium sulfite bovine hydrate is 0.0046f/1oa
d water, so it has excellent water resistance, and the heating dehydration temperature of the crystallized water of calcium sulfite hemihydrate is 300 to 400℃.
Because of its high temperature, it has an excellent fire prevention effect against fires, and when compared to the conventional Cerakola board made from roasted wood, it has the same physical properties and has the same light weight, nonflammability, and dimensional accuracy. , processability, etc. 0 Examples of the present invention are shown below 1 The effects of the present invention are specifically clarified 0 Examples Sulfurous acid by-produced by flue gas desulfurization Calcium sulfite anhydrate was obtained by heating the calcium bovine hydrate crystals in air at 350 to 450°C. This calcium sulfite anhydrate was mixed with 70% water based on the anhydrate, and the mixture was poured into a mold and hardened. After curing, the mold was demolded to obtain a cured product according to the present invention. Various physical tests were conducted on this cured product. The results were that the bulk specific gravity was 0.8, the porosity was 70%, the bending strength was 50-/♂, and the compressive strength was 105-7'.
また、この硬化体は、亜硫酸カルシウム半水和物（Ｑａ
８０１・％Ｈ２０）からなっているため、溶解度が０．
００４６ＪＰ／ｌｏｏｍ水でちゃ、且つ大気中で殆ど酸
化されることなく低溶解性を保持しておシ、十分な防水
効果を有してい友。また更に、この硬化体を形成する亜
硫酸カルシクム手水和貴物の加熱脱水温度はＳＯＯ〜４
００℃であるため、この硬化体は、優れた防火効果を有
していた。In addition, this hardened product is composed of calcium sulfite hemihydrate (Qa
801%H20), so the solubility is 0.
0046JP/room It maintains low solubility in water and in the atmosphere without being oxidized, and has a sufficient waterproof effect. Furthermore, the heating dehydration temperature of the calcicum sulfite hand-hydrated precious material forming this hardened body is SOO~4
Since the temperature was 00°C, this cured product had an excellent fire prevention effect.
従って、本発明に係る硬化体は、溶解度が０２１１ｆ／
１００鰺１水、加熱脱水温度が１００〜１８０℃である
従来のセラコク硬化体（Ｑ１１１３０４＋１Δｔｏ）に
比して、防水性及び防火性共に優れているものである０
特許出願人
荒 井 康 夫Therefore, the cured product according to the present invention has a solubility of 0211f/
Compared to the conventional cured Cerakoku material (Q111304+1Δto), which uses 100 mackerel 1 water and heat dehydration temperature is 100 to 180°C, it has excellent waterproof and fire retardant properties.0 Patent Applicant: Yasuo Arai
Claims (1)
建材用ボード。A building material board made of a hardened product obtained by hydration of calcium sulfite anhydrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12230281A JPS5826060A (en) | 1981-08-03 | 1981-08-03 | Construction board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12230281A JPS5826060A (en) | 1981-08-03 | 1981-08-03 | Construction board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5826060A true JPS5826060A (en) | 1983-02-16 |
Family
ID=14832589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12230281A Pending JPS5826060A (en) | 1981-08-03 | 1981-08-03 | Construction board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5826060A (en) |
-
1981
- 1981-08-03 JP JP12230281A patent/JPS5826060A/en active Pending
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