JPH0948652A - Gypsum member - Google Patents
Gypsum memberInfo
- Publication number
- JPH0948652A JPH0948652A JP19681195A JP19681195A JPH0948652A JP H0948652 A JPH0948652 A JP H0948652A JP 19681195 A JP19681195 A JP 19681195A JP 19681195 A JP19681195 A JP 19681195A JP H0948652 A JPH0948652 A JP H0948652A
- Authority
- JP
- Japan
- Prior art keywords
- gypsum
- cement
- strength
- sio
- siox
- 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
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/02—Elements
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/60—Agents for protection against chemical, physical or biological attack
- C04B2103/67—Biocides
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (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
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、例えば建材用ボー
ドとして使用される石膏部材に関する。TECHNICAL FIELD The present invention relates to a gypsum member used as, for example, a building board.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】石膏
（硫酸カルシウム二水和物：CaSO4 ・2H2 O)は加熱する
と、約76℃以上で結晶水の3/4 を失い、焼石膏（半水石
膏：CaSO4 ・1/2H2 O)となる。焼石膏は、水で練ると凝
結硬化する特性を有し、この特性を利用して建築用材，
陶磁器型材，医療（ギプス）等、種々の用途に用いられ
ている。また石膏（二水和物）は、セメントの凝結速度
を調節するためにセメントに混入させて使用されてお
り、セメントの製造に不可欠である。その他、ゴム，紙
の充填材，豆腐の凝固材としても使用されている。 2. Description of the Related Art Gypsum (calcium sulfate dihydrate: CaSO 4 .2H 2 O) loses 3/4 of the water of crystallization at about 76 ° C or higher when heated and calcined gypsum ( Hemihydrate gypsum: CaSO 4 1 / 2H 2 O). Calcined gypsum has the property that it sets and hardens when kneaded with water.
It is used for various purposes such as ceramic molds and medical products (casts). In addition, gypsum (dihydrate) is mixed with cement in order to control the setting rate of cement, and is essential for the production of cement. In addition, it is also used as a filling material for rubber and paper, and as a solidifying material for tofu.
【０００３】無機系の接着剤の気硬性のものとして石膏
が挙げられ、他には石灰，マグネシアセメントがある。
一方、水硬性のものとしては、ポルトランドセメントが
最も多く使用されており、一般的にいうセメントはポル
トランドセメントを指す。その他、水硬性セメントに
は、混合セメント，特殊セメント，火山灰を混入した水
硬性石灰がある。Gypsum is mentioned as a gas-hardening inorganic adhesive, and other examples include lime and magnesia cement.
On the other hand, as the hydraulic material, Portland cement is most often used, and generally called cement means Portland cement. In addition, hydraulic cement includes mixed cement, special cement, and hydraulic lime mixed with volcanic ash.
【０００４】ポルトランドセメントには、普通ポルトラ
ンドセメント，早強ポルトランドセメント，超早強ポル
トランドセメント，中庸熱（又は低熱）ポルトランドセ
メント及び白色ポルトランドセメントがある。これら
（白色ポルトランドセメントを除く）の化学成分，化合
物（鉱物）組成及び比表面積を表１に示す。Portland cements include ordinary Portland cements, early strength Portland cements, ultra early strength Portland cements, moderate heat (or low heat) Portland cements and white Portland cements. Table 1 shows the chemical components, compound (mineral) composition and specific surface area of these (excluding white Portland cement).
【０００５】[0005]
【表１】 [Table 1]
【０００６】一般的に、酸化カルシウム（即ちケイ酸三
カルシウム）の含有率が高い程、比表面積が大きく、水
和凝結速度が高い。ケイ酸三カルシウムの含有率が高い
早強ポルトランドセメント及び超早強ポルトランドセメ
ントは、耐水性，強度，水和熱が大きいという特徴を有
する。Generally, the higher the content of calcium oxide (ie tricalcium silicate), the larger the specific surface area and the higher the rate of hydration condensation. The early-strength Portland cement and the super-early-strength Portland cement with high tricalcium silicate content are characterized by high water resistance, strength, and high heat of hydration.
【０００７】また混合セメントには、シリカセメント，
高炉セメント，フライアッシュセメントがある。シリカ
セメントは、可溶性シリカ（ＳｉＯ2 ）分が多い火山
灰，白土，凝灰岩，ケイ藻土をポルトランドセメントと
混合したものであり、可溶性シリカが、水和の際に生じ
る水酸化カルシウムとポゾラン反応を起こしてケイ酸カ
ルシウム水和物を生成し、これにより耐火性，長期強度
が増す。高炉セメントは、生石灰，シリカ，アルミナを
主成分とするガラス質の高炉水砕スラグを含み、潜在水
硬性を示す。フライアッシュセメントは、微粉炭を燃焼
させた球状の灰であり、シリカ，アルミナを主成分とす
るフライアッシュを含み、凝固における反応はシリカセ
メントと同様である。As the mixed cement, silica cement,
There are blast furnace cement and fly ash cement. Silica cement is a mixture of volcanic ash, white clay, tuff, and diatomaceous earth containing a large amount of soluble silica (SiO 2 ) and Portland cement. Form calcium silicate hydrate, which increases fire resistance and long-term strength. Blast furnace cement contains vitreous granulated blast furnace slag containing quicklime, silica, and alumina as main components and exhibits latent hydraulic properties. Fly ash cement is a spherical ash obtained by burning pulverized coal, contains fly ash containing silica and alumina as main components, and the reaction in solidification is the same as that of silica cement.
【０００８】このように石膏は、単体又はセメントの構
成物として広く使用されており、その強度向上のための
研究がなされている。また運搬時における作業効率を向
上させるために、軽量化が望まれている。本発明は、斯
かる事情に鑑みてなされたものであり、軽量であり且つ
強度が高い石膏部材を提供することを目的とする。As described above, gypsum is widely used as a simple substance or a constituent of cement, and studies have been made to improve its strength. Further, in order to improve work efficiency during transportation, weight reduction is desired. The present invention has been made in view of such circumstances, and an object thereof is to provide a gypsum member that is lightweight and has high strength.
【０００９】[0009]
【課題を解決するための手段】本発明に係る石膏部材
は、３〜63重量％のＳｉ又はＳｉＯX （０＜ｘ＜２）を
含むことを特徴とする。The gypsum member according to the present invention is characterized by containing 3 to 63% by weight of Si or SiO x (0 <x <2).
【００１０】[0010]
【発明の実施の形態】本発明に係る石膏部材は、11％
（重量％）のＳｉを混入させてある。この材料からなる
石膏ボードと従来の石膏ボードとにおける重量，強度，
静電気電圧を表２に示す。強度は、長さ1800mm，幅900
mm，厚み９mmの石膏ボードを長さ方向の両端で支持し、
その上に荷重をかけ剪断するときの荷重の値で示す。BEST MODE FOR CARRYING OUT THE INVENTION The gypsum member according to the present invention is 11%.
(Wt%) Si is mixed. The weight and strength of gypsum board made of this material and conventional gypsum board,
The electrostatic voltage is shown in Table 2. Strength is 1800 mm in length, 900 in width
mm, 9 mm thick gypsum board is supported at both ends in the longitudinal direction,
The value of the load when a load is applied and sheared is shown.
【００１１】[0011]
【表２】 [Table 2]
【００１２】表２に示す如く、本発明の石膏ボードは、
従来の石膏ボードと比較して、体積が同じであっても重
量は約２／３である。従って例えば建築現場での運搬に
おいて、従来の石膏ボードを２枚運ぶ労力で、本発明の
石膏ボードを３枚運ぶことができる。従って作業効率が
３／２倍に向上する。ここで本発明の石膏ボードは軽い
だけでなく強度が従来より約３７％高い。従って建築物
の強度が向上する。As shown in Table 2, the gypsum board of the present invention is
Compared with the conventional gypsum board, the weight is about 2/3 even if the volume is the same. Therefore, for example, in transportation at a construction site, the labor of carrying two conventional gypsum boards can carry three gypsum boards of the present invention. Therefore, work efficiency is improved to 3/2 times. Here, the gypsum board of the present invention is not only light, but also about 37% stronger than the conventional one. Therefore, the strength of the building is improved.
【００１３】また静電気電圧は、（＋）0.3kV から
（−）0.7kV に転じている。これはＳｉ又はＳｉＯX が
陰イオンを放出する作用を有するためであると考えられ
る。従って本発明に係る石膏ボードを使用して遮蔽した
又は取り囲んだ空間は負の静電気雰囲気とすることがで
きる。通常、正の静電気雰囲気では、陽イオン濃度が高
く、人体，植物体等の生命体に悪影響を及ぼす。体内に
おける陽イオン量が増加すると、新陳代謝が活発に行わ
れず、抵抗力が弱まり、病気がちになる。人体における
症状としては肩こり，眠気，疲労があり、その他、重度
の健康障害を引き起こす場合もある。一方、陰イオン
は、細胞，血液，水分を活性化し、上述した症状を回避
することができる。The electrostatic voltage is changed from (+) 0.3 kV to (-) 0.7 kV. It is considered that this is because Si or SiO x has a function of releasing anions. Therefore, the space shielded or surrounded by the gypsum board according to the present invention can have a negative electrostatic atmosphere. Usually, in a positive electrostatic atmosphere, the concentration of cations is high, which adversely affects humans, plants, and other living organisms. When the amount of cations in the body increases, metabolism is not actively performed, resistance is weakened, and illness tends to occur. Symptoms in the human body include stiff shoulders, drowsiness, and fatigue, and may also cause serious health problems. On the other hand, anions can activate cells, blood, and water to avoid the above-mentioned symptoms.
【００１４】さらにＳｉ又はＳｉＯX が放出する陰イオ
ンにより、空中に含まれる酸素及び水分から活性酸素が
生成される。従って石膏ボード表面及びその周辺に存在
する菌がこの活性酸素により死滅せしめられるという抗
菌効果が得られる。また銀イオンは、細菌の代謝系にお
ける酵素阻害作用，及び細胞膜間の物質移動阻害作用に
より細菌の細胞分裂を不能にすると考えられている。Ｓ
ｉ又はＳｉＯX においてもこのような作用が得られてい
る可能性もある。Further, the anions released by Si or SiO x generate active oxygen from oxygen and moisture contained in the air. Therefore, the antibacterial effect is obtained in that the bacteria existing on the surface of the gypsum board and its periphery are killed by this active oxygen. Further, silver ions are considered to disable the cell division of bacteria due to the enzyme inhibitory action in the metabolic system of bacteria and the substance transfer inhibiting action between cell membranes. S
It is possible that such an effect is obtained also in i or SiO x .
【００１５】なお上述の例ではボード状に成形したもの
に適用しているが、ブロック状，柱状等、他の形状に成
形して使用してもよいことはいうまでもない。Although the above-mentioned example is applied to a board-shaped member, it goes without saying that it may be molded into another shape such as a block or a column.
【００１６】Ｓｉ又はＳｉＯX の含有量は３〜63％とす
る。３％を下回ると顕著な効果が得られず、また63％を
越えると逆に強度が低下する。ＳｉＯX の組成として
は、１≦ｘ≦1.95で良好な効果が得られ、ｘ＝1.5 で最
も良好な効果が得られる。The content of Si or SiO x is 3 to 63%. If it is less than 3%, no remarkable effect is obtained, and if it exceeds 63%, the strength is decreased. The composition of SiO X, good effect is obtained with 1 ≦ x ≦ 1.95, best effects x = 1.5 is obtained.
【００１７】[0017]
【発明の効果】以上のように本発明に係る石膏部材は、
石膏（CaSO4 ・2H2 O)にＳｉ又はＳｉＯX （０＜ｘ＜
２）を添加してあるので、軽量化及び強度向上が実現
し、また陰イオン濃度を高め、抗菌効果が得られる等、
本発明は優れた効果を奏する。As described above, the gypsum member according to the present invention is
Gypsum (CaSO 4・ 2H 2 O) with Si or SiO x (0 <x <
Since 2) is added, weight reduction and strength improvement are realized, and the anion concentration is increased, and an antibacterial effect is obtained.
The present invention has excellent effects.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 大原 豊子 奈良県奈良市あやめ池南７丁目538の18 (72)発明者 菊池 英明 大阪府大阪市旭区太子橋１−25−25 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Toyoko Ohara 7-538-18-18 Ayameikeminami, Nara City, Nara Prefecture (72) Inventor Hideaki Kikuchi 1-25-25 Taishibashi, Asahi-ku, Osaka-shi, Osaka
Claims (1)
ｘ＜２）を含むことを特徴とする石膏部材。1. Si or SiO x (0 <3% by weight of 3 to 63% by weight)
A gypsum member containing x <2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19681195A JPH0948652A (en) | 1995-08-01 | 1995-08-01 | Gypsum member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19681195A JPH0948652A (en) | 1995-08-01 | 1995-08-01 | Gypsum member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0948652A true JPH0948652A (en) | 1997-02-18 |
Family
ID=16364054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19681195A Pending JPH0948652A (en) | 1995-08-01 | 1995-08-01 | Gypsum member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0948652A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5454136A (en) * | 1977-10-07 | 1979-04-28 | Fuji Fibre Glass Co Ltd | Inorganiccfiber reinforced gypsum composition |
| JPS59111956A (en) * | 1982-12-17 | 1984-06-28 | 新日本製鐵株式会社 | Expandable cement composition |
| JPH0375251A (en) * | 1989-08-15 | 1991-03-29 | Sumitomo Cement Co Ltd | High-strength hydraulic substance |
-
1995
- 1995-08-01 JP JP19681195A patent/JPH0948652A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5454136A (en) * | 1977-10-07 | 1979-04-28 | Fuji Fibre Glass Co Ltd | Inorganiccfiber reinforced gypsum composition |
| JPS59111956A (en) * | 1982-12-17 | 1984-06-28 | 新日本製鐵株式会社 | Expandable cement composition |
| JPH0375251A (en) * | 1989-08-15 | 1991-03-29 | Sumitomo Cement Co Ltd | High-strength hydraulic substance |
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