JPH06127990A - Coated hollow lightweight aggregate - Google Patents
Coated hollow lightweight aggregateInfo
- Publication number
- JPH06127990A JPH06127990A JP4304491A JP30449192A JPH06127990A JP H06127990 A JPH06127990 A JP H06127990A JP 4304491 A JP4304491 A JP 4304491A JP 30449192 A JP30449192 A JP 30449192A JP H06127990 A JPH06127990 A JP H06127990A
- Authority
- JP
- Japan
- Prior art keywords
- aggregate
- hollow
- cement
- coated
- lightweight aggregate
- 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.)
- Withdrawn
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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1055—Coating or impregnating with inorganic materials
- C04B20/1077—Cements, e.g. waterglass
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、被覆された中空軽量骨
材に関し、更に詳細には強度の高い中空軽量骨材に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coated hollow lightweight aggregate, and more particularly to a hollow lightweight lightweight aggregate having high strength.
【０００２】[0002]
【従来の技術】コンクリート製品中、押出し成形やプレ
ス成形により成形されたセメント板は、建築物の外壁と
して用いられているが、元来これらのセメント板は、セ
メントおよび骨材が主成分であるため重量が嵩み、した
がって工場での製品の運搬や現場の作業上、多大の労力
を要するという問題があった。そこで、この問題を解決
するために骨材の軽量化が行われ、中空骨材、例えばパ
ーライト等が使用されるようになり軽量のセメント板が
製造されるようになった。2. Description of the Related Art Cement boards formed by extrusion molding or press molding in concrete products are used as outer walls of buildings. Originally, these cement boards are mainly composed of cement and aggregate. Therefore, there is a problem that the weight is heavy, and therefore a great deal of labor is required for transporting the product in the factory and working on the site. Therefore, in order to solve this problem, the weight of the aggregate has been reduced, and hollow aggregates, such as pearlite, have been used, and lightweight cement plates have been manufactured.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、中空軽
量骨材を用いて、しかもプレス成形で製造されるセメン
ト板は、内部が中空であるため強度に弱いばかりでな
く、プレス成形等の場合、プレス圧を高くすると中空骨
材が破損してしまう欠点があった。However, the cement board produced by using the hollow lightweight aggregate and by press molding is not only weak in strength because it has a hollow inside, but in the case of press molding, etc. There is a drawback that the hollow aggregate is damaged when the pressure is increased.
【０００４】そこで、本発明者等は、中空軽量骨材の強
度を上げるために種々検討した結果、該骨材の表面を予
めセメントを含む被覆組成物で被覆することにより初期
の目的を達成することができることを見出し、ここに本
発明を完成した。したがって、本発明の目的は、プレス
成形等により中空骨材の破損がなく、強度の大きいセメ
ント板を比較的低密度で成形することができる中空軽量
骨材を提供することにある。Therefore, the present inventors have conducted various studies to increase the strength of the hollow lightweight aggregate, and as a result, achieve the initial purpose by previously coating the surface of the aggregate with a coating composition containing cement. It has been found that the present invention can be achieved, and the present invention has been completed here. Therefore, it is an object of the present invention to provide a hollow lightweight aggregate capable of forming a cement board having high strength without damage to the hollow aggregate by press molding or the like and having a relatively low density.
【０００５】[0005]
【課題を解決するための手段】本発明の上記目的は、骨
材粒子がセメント及び有機樹脂エマルジョンを含む被覆
用組成物で被覆されていることを特徴とする中空軽量骨
材によって達成される。以下、本発明を更に詳しく説明
すると、本発明は、中空骨材粒子の表面をセメントと有
機樹脂エマルジョンとを含む被覆用組成物で被覆したの
で、中空骨材粒子の強度が増大し、したがってプレス成
形によりセメント板を製造した場合、強度が大きく、低
密度のセメント板が得られる。The above object of the present invention is achieved by a hollow lightweight aggregate characterized in that the aggregate particles are coated with a coating composition containing cement and an organic resin emulsion. Hereinafter, the present invention will be described in more detail. According to the present invention, the surface of the hollow aggregate particles is coated with a coating composition containing cement and an organic resin emulsion, so that the strength of the hollow aggregate particles is increased, and thus the press is reduced. When a cement board is manufactured by molding, a cement board having high strength and low density can be obtained.
【０００６】本発明に用いられる中空軽量骨材として
は、パーライト、シラシバルーン等が挙げられるが、特
にパーライトが好ましい。この中空軽量骨材の粒子の構
造としては、粒子の内部に空洞を有するものであれば特
に制限されるものではなく、図１において中空軽量骨材
が模式的に断面図で示されるように、図１のａ〜ｄの如
きものであってよい。Examples of the hollow lightweight aggregate used in the present invention include pearlite and silashi balloon, and pearlite is particularly preferable. The structure of the particles of the hollow lightweight aggregate is not particularly limited as long as it has cavities inside the particles, and as shown in the schematic cross-sectional view of the hollow lightweight aggregate in FIG. 1, It may be like a to d in FIG.
【０００７】図１のａは、骨材粒子の内部が１個の大き
な空洞になっている場合であり、図１のｂは、骨材粒子
の内部が２個の大きな空洞になっており、図１のｃは、
空洞が３個の場合であり、更に図１のｄは、無数の空洞
でできている場合等である。好ましくは、図１のａの場
合である。本発明の被覆用組成物としては、セメントを
主成分とし、これに有機樹脂エマルジョンと水を加え
て、更に界面活性剤で分散したものである。FIG. 1a shows the case where the inside of the aggregate particles is one large cavity, and FIG. 1b shows the inside of the aggregate particles is two large cavities, 1c is
This is the case where there are three cavities, and d in FIG. Preferably, it is the case of FIG. The coating composition of the present invention comprises cement as a main component, an organic resin emulsion and water added thereto, and further dispersed with a surfactant.
【０００８】セメントとしては、特に制限されるもので
はなく、普通ポルトランドセメント、早強ポルトランド
セメント等の通常製品工場で使用されるものでよい。更
にその用途により他の種類のセメントを用いることもで
きる。有機樹脂エマルジョンを形成する樹脂としては、
アクリル系樹脂、ＳＢＲ、エチレン酢酸ビニル共重合
体、クロロプレンゴム等が挙げられる。The cement is not particularly limited, and may be ordinary Portland cement, early-strength Portland cement or the like used in ordinary product factories. Further, other types of cement can be used depending on the application. As the resin forming the organic resin emulsion,
Acrylic resins, SBR, ethylene vinyl acetate copolymer, chloroprene rubber and the like can be mentioned.
【０００９】界面活性剤としては、特に制限されない
が、アルキル硫酸塩、アルキルスルホン酸塩、アルキル
アリールスルホン酸塩等が用いられる。本発明の被覆用
組成物は、中空軽量骨材と混合して攪拌することにより
発泡し、その発泡作用で中空軽量骨材の表面に付着す
る。The surfactant is not particularly limited, but alkylsulfates, alkylsulfonates, alkylarylsulfonates, etc. are used. The coating composition of the present invention is foamed by being mixed with the hollow lightweight aggregate and stirred, and adheres to the surface of the hollow lightweight aggregate by the foaming action.
【００１０】[0010]
【作用】本発明は、セメントと有機樹脂エマルジョンと
を界面活性剤により分散して均一な組成物とした後、中
空軽量骨材の粒子表面に被覆すると、有機エマルジョン
の発泡作用で該組成物が骨材表面に付着し、強度の大き
い被覆骨材が得られる。According to the present invention, when the cement and the organic resin emulsion are dispersed by a surfactant to form a uniform composition, and the surface of the particles of the hollow lightweight aggregate is coated, the composition is formed by the foaming action of the organic emulsion. A coated aggregate that adheres to the aggregate surface and has high strength is obtained.
【００１１】[0011]
【実施例】以下、本発明を実施例を用いて更に詳しく説
明するが、本発明は、この例によって限定されるもので
はない。EXAMPLES The present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples.
【００１２】実施例 ポルトランドセメント １００重量部 アクリル樹脂エマルジョン １０重量部 界面活性剤（アルキルアリルポリエーテルアルコール） ２重量部 水 ３５重量部Example Portland cement 100 parts by weight Acrylic resin emulsion 10 parts by weight Surfactant (alkylallyl polyether alcohol) 2 parts by weight Water 35 parts by weight
【００１３】上記の被覆用組成物のうち、まずポルトラ
ンドセメント、アクリル樹脂エマルジョン、界面活性剤
をセメントモルタル用ミキサーで５分間攪拌して混合し
た後、水を加えて更に１０分間混練した。このようにし
て得られた被覆用組成物をパーライト３０重量部と混合
し、攪拌したところ、中空軽量骨材に該被覆用組成物は
発泡しながら付着して表面が被覆された中空軽量骨材が
得られた。Among the above coating compositions, first, Portland cement, acrylic resin emulsion and surfactant were mixed by stirring for 5 minutes with a cement mortar mixer, then water was added and the mixture was kneaded for 10 minutes. The coating composition thus obtained was mixed with 30 parts by weight of pearlite and stirred, and the coating composition adhered to the hollow lightweight aggregate while foaming and the surface was coated. was gotten.
【００１４】図２には本発明の被覆された中空軽量骨材
４の断面図が示されており、５は本発明の被覆用組成物
によって形成された被膜である。ついで、この被覆中空
軽量骨材を用いてセメント板をプレス成形するために、
下記の材料を混合して、成形用原料を作製した。FIG. 2 shows a cross-sectional view of the coated hollow lightweight aggregate 4 of the present invention, and 5 is a coating formed by the coating composition of the present invention. Then, in order to press-mold a cement board using this coated hollow lightweight aggregate,
The following materials were mixed to prepare a raw material for molding.
【００１５】この成形用原料を用いてプレス圧５０ｋｇ
ｆ／ｃｍ2 で成形したところ、得られたセメント板は、
中空骨材の充填率が高く、強度が大きい上、低密度の軽
量なセメント板であった。なお、図１のｂ〜ｄの骨材
も、この実施例と同様にして被覆し、更にそれを用いて
セメント板をプレス成形により製造したところ、中空骨
材の破損がなく、強度に優れた軽量のセメント板が得ら
れた。Pressing pressure of 50 kg using this molding raw material
When molded with f / cm 2 , the obtained cement board has
It was a lightweight cement board with a high filling rate of hollow aggregates, high strength, and low density. In addition, when the aggregates of b to d in FIG. 1 were coated in the same manner as in this example, and a cement plate was manufactured by press molding using the same, the hollow aggregate was not damaged and was excellent in strength. A lightweight cement board was obtained.
【００１６】[0016]
【発明の効果】本発明は、セメントに有機樹脂エマルジ
ョンを混合した組成物を中空骨材に被覆したので、強度
の高い中空軽量骨材が得られ、これを用いることにより
軽量で、かつ強度が大きいという優れた効果を奏するセ
メント板が得られる。INDUSTRIAL APPLICABILITY According to the present invention, since a hollow aggregate is coated with a composition in which an organic resin emulsion is mixed with cement, a hollow lightweight aggregate having high strength can be obtained. A cement board having an excellent effect of being large can be obtained.
【図１】ａ〜ｄは、各種の空洞を有する中空軽量骨材を
示す断面図である。1A to 1D are cross-sectional views showing hollow lightweight aggregates having various cavities.
【図２】本発明の被覆された中空軽量骨材を示す断面図
である。FIG. 2 is a cross-sectional view showing a coated hollow lightweight aggregate of the present invention.
１ 中空軽量骨材 ３ 空洞 ２ 骨材外皮 ４ 被覆された中空
軽量骨材 ５ 被膜1 Hollow Lightweight Aggregate 3 Cavity 2 Aggregate Skin 4 Coated Hollow Lightweight Aggregate 5 Coating
Claims (1)
ジョンを含む被覆用組成物で被覆されていることを特徴
とする中空軽量骨材。1. A hollow lightweight aggregate characterized in that the aggregate particles are coated with a coating composition containing cement and an organic resin emulsion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4304491A JPH06127990A (en) | 1992-10-19 | 1992-10-19 | Coated hollow lightweight aggregate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4304491A JPH06127990A (en) | 1992-10-19 | 1992-10-19 | Coated hollow lightweight aggregate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06127990A true JPH06127990A (en) | 1994-05-10 |
Family
ID=17933677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4304491A Withdrawn JPH06127990A (en) | 1992-10-19 | 1992-10-19 | Coated hollow lightweight aggregate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06127990A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2327669A (en) * | 1998-03-21 | 1999-02-03 | Univ Liverpool John Moores | A coated particulate aggregate material for use in construction |
| ITVI20130005A1 (en) * | 2013-01-16 | 2014-07-17 | Edoardo Marcheluzzo | METHOD OF REALIZING A MIX FOR THE EXECUTION OF A BUILDING ELEMENT |
-
1992
- 1992-10-19 JP JP4304491A patent/JPH06127990A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2327669A (en) * | 1998-03-21 | 1999-02-03 | Univ Liverpool John Moores | A coated particulate aggregate material for use in construction |
| GB2327669B (en) * | 1998-03-21 | 2001-08-15 | Univ Liverpool John Moores | Coated aggregate particles for use in construction and methods of making same |
| ITVI20130005A1 (en) * | 2013-01-16 | 2014-07-17 | Edoardo Marcheluzzo | METHOD OF REALIZING A MIX FOR THE EXECUTION OF A BUILDING ELEMENT |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20000104 |