JPS6230036A - Cement composite material - Google Patents
Cement composite materialInfo
- Publication number
- JPS6230036A JPS6230036A JP17020585A JP17020585A JPS6230036A JP S6230036 A JPS6230036 A JP S6230036A JP 17020585 A JP17020585 A JP 17020585A JP 17020585 A JP17020585 A JP 17020585A JP S6230036 A JPS6230036 A JP S6230036A
- Authority
- JP
- Japan
- Prior art keywords
- cement
- composite material
- cement paste
- fibers
- aramid
- 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
- 239000004568 cement Substances 0.000 title claims description 44
- 239000002131 composite material Substances 0.000 title claims description 13
- 229920006231 aramid fiber Polymers 0.000 claims description 30
- 239000004760 aramid Substances 0.000 claims description 14
- 239000000839 emulsion Substances 0.000 claims description 8
- 239000000057 synthetic resin Substances 0.000 claims description 7
- 229920003002 synthetic resin Polymers 0.000 claims description 7
- 239000000835 fiber Substances 0.000 description 10
- 229920000049 Carbon (fiber) Polymers 0.000 description 6
- 238000005452 bending Methods 0.000 description 6
- 239000004917 carbon fiber Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000002245 particle Substances 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920006163 vinyl copolymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Panels For Use In Building Construction (AREA)
- Laminated Bodies (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】
「産業上の利用分野」
本発明は、セメントと繊維とを、ある種の媒体を介して
複合化させ、優れた機械的性質を得るようにした新規の
セメント複合材に関するものである。Detailed Description of the Invention "Field of Industrial Application" The present invention relates to a novel cement composite material that has excellent mechanical properties by combining cement and fibers through a certain type of medium. It is related to.
「従来の技術」
セメントマトリックスを各種の繊維で補強する技術手段
は既に公知であシ、例えば鋼繊維補強、耐アμカリ性ガ
フス繊維補強、或はポリエチレン繊維補強等がある。``Prior Art'' Technical means for reinforcing cement matrices with various fibers are already known, such as steel fiber reinforcement, alkali-resistant gaff fiber reinforcement, or polyethylene fiber reinforcement.
そして、特に近年カーボン繊維の開発によシ、長繊維の
カーボン繊維を軸方向に配向させて、セメントマトリ、
クスと交互に積層する方法や、短繊維のカーボン繊維を
セメントマトリックスに８次元ランダムに配向する方法
等を用いたカーボン繊維による高性能セメント、繊維複
合材の提案がある。Especially in recent years, with the development of carbon fibers, long carbon fibers have been oriented in the axial direction, and cement matrices,
There are proposals for high-performance cement and fiber composite materials using carbon fibers, such as a method in which carbon fibers are alternately laminated with carbon fibers, or a method in which short carbon fibers are oriented randomly in eight dimensions in a cement matrix.
「発明が解決しようとする問題点」
本発明は、前記の従来技術による強化性能よシ格段に強
化高性能化されたセメント複合材を提供し、セメント製
品における引張強度ならびに曲げ強度等の機械的性質を
特段に向上させるのが目的である。``Problems to be Solved by the Invention'' The present invention provides a cement composite material with significantly improved reinforcement performance compared to the conventional technology described above, and improves mechanical properties such as tensile strength and bending strength in cement products. The purpose is to particularly improve properties.
「問題点を解決するだめの手段」
以上の目的を達成する本発明は、引張シ強度ならびに衝
撃強度等の物理的性質に優れるアラミド繊維を活用し、
そのアラミド繊維とセメントトラ複合させることに着目
して成されたもので、その要旨は「集束した微細なアラ
ミド繊維を所要の軸方向に配列したアラミド繊維層と合
成樹脂エマルジョンを混合した低粘度のセメントペース
トをサントイ、層状に積層配列し、前記セメントペース
トを前記アラミド繊維層に含浸させて固化したことを特
徴とするセメント複合材」である。``Means for Solving the Problems'' The present invention achieves the above objectives by utilizing aramid fibers that have excellent physical properties such as tensile strength and impact strength.
It was developed by focusing on the composite of aramid fibers and cement fibers, and its gist is ``A low-viscosity product made by mixing a synthetic resin emulsion with an aramid fiber layer in which fine aramid fibers are arranged in the desired axial direction. A cement composite material characterized in that cement paste is layered and arranged in layers, and the aramid fiber layer is impregnated with the cement paste and solidified.
「作用」
以上の構成のセメント複合材は、セメントペーストに含
まれている合成樹脂エマルジョンが、セメント粒子間な
らびに微細なアラミド繊維層間に介在して膜体を形成し
、接着作用するものと認められ、アラミド繊維固有の物
理的性質が顕化し、当該セメント複合材は優れた機械的
性質を奏する格別の作用がある。"Function" In the cement composite material with the above structure, it is recognized that the synthetic resin emulsion contained in the cement paste forms a film between the cement particles and between the fine aramid fiber layers and acts as an adhesive. , the physical properties unique to aramid fibers become apparent, and the cement composite material has an exceptional effect of exhibiting excellent mechanical properties.
「実施例」
以下、実施例を引用して本発明の構成ならびに作用を詳
しく説明する。"Examples" Hereinafter, the structure and operation of the present invention will be explained in detail with reference to Examples.
まづ、その一実施例の構造を示すｊｇ１図を参照して、
図は長方形横断面を有する角柱状の供試体を成形した実
施例を示したもので、尚該供試体の引張シ側となる横断
面の下方部分にアラミド繊維層が配列しである。即ち、
ミクロン単位の極めそ微細なアラミド繊維を集束して層
状に配列したアラミド繊維層１が、三層に配列されると
共に、そのアラミド繊維層１間ならびに最上段のアラミ
ド繊維層１の上面と、最下段のアラミド繊維層１の下面
には、合成樹脂エマルジョンの混和剤を混合し、かつ、
アラミド繊維層１に含浸し易くするために粘度を低くし
た低粘度セメントペースト２がサンドイッチ状にして多
層配列されてお）、さらに１その多層体の上方には、高
粘度セメントペースト８が流し込まれて方形横断面に成
形され、低粘度セメントペースト２をアラミド繊維層１
に含浸させて固化して成形されている。First, with reference to diagram jg1 showing the structure of one example,
The figure shows an example in which a prismatic specimen with a rectangular cross section was molded, and an aramid fiber layer was arranged in the lower part of the cross section on the tensile side of the specimen. That is,
The aramid fiber layer 1, which is a collection of extremely fine aramid fibers on the micron scale and arranged in layers, is arranged in three layers, and is arranged between the aramid fiber layers 1 and on the upper surface of the uppermost aramid fiber layer 1. A synthetic resin emulsion admixture is mixed on the lower surface of the lower aramid fiber layer 1, and
A low viscosity cement paste 2 whose viscosity is lowered to make it easier to impregnate the aramid fiber layer 1 is arranged in multiple layers in the form of a sandwich), and a high viscosity cement paste 8 is poured above the multilayer structure. The low viscosity cement paste 2 is applied to the aramid fiber layer 1.
It is impregnated with water, solidified and molded.
なお、以上の８層に配列した繊維層１は個々に概ね０．
２６〜（１３ｍｍの厚さであシ、低粘度セメントペース
ト２を介在させた３層分の多層体の厚さＴ２は約８ｍｍ
である。従って、その厚さＴ２は図示の供試体の総厚さ
Ｔ１１０ ｍｍの概ね１／３に成っ゛ている。The fiber layers 1 arranged in the above eight layers each have a thickness of approximately 0.
26~(Thickness: 13 mm, thickness T2 of 3 layers of multilayer body with low viscosity cement paste 2 interposed is approximately 8 mm)
It is. Therefore, the thickness T2 is approximately 1/3 of the total thickness T110 mm of the illustrated specimen.
また、低粘度セメントペースト２の流し込みによる成形
加工を容易にするため、型枠の内側には、予め高粘度セ
メントペースト８を薄く塗シ付け、その上に前記の多層
体が配列しである。Further, in order to facilitate the molding process by pouring the low-viscosity cement paste 2, a thin layer of high-viscosity cement paste 8 is applied in advance to the inside of the mold, and the above-mentioned multilayer body is arranged on top of the high-viscosity cement paste 8.
詳しくは、以上の実施例に用いたアラミド繊維と合成樹
脂エマルジョンから成る混和剤、ならびにセメントペー
ストの諸元は以下の通シである。Specifically, the specifications of the admixture consisting of aramid fiber and synthetic resin emulsion and the cement paste used in the above examples are as follows.
・アラミド繊維：直径１２ミクロン、集束数７６０、集
束の厚さ０．２６ ｍｍの薄いアラミド繊維（米国デュ
ポン社製のケデフー（商標）４９の８−２８１）
・混和剤：エチレン・酢酸ビニル・塩化ビニル共重合樹
脂水性エマルジョン（ヘキスト合成株式会社のモビトン
（商標）−１１０）・セメントペースト
以上の実施例の本発明のセメント複合材と、前記実施例
のセメントペーストに混和剤混入を省略し、アラミド繊
維を積層配列して混和剤を入れない低粘度セメントペー
ストを含浸させたもの、ならびにアラミド繊維を積層し
ない従来品、とを対比した曲げ強度試験の結果は下表の
通シである。・Aramid fiber: Thin aramid fiber with a diameter of 12 microns, number of bundles 760, and thickness of bundles 0.26 mm (Kedefu (trademark) 49-8-281 manufactured by DuPont, USA) ・Admixture: ethylene, vinyl acetate, chloride Vinyl copolymer resin aqueous emulsion (Mobiton (trademark)-110 manufactured by Hoechst Gosei Co., Ltd.)/cement paste The cement composite material of the present invention of the above embodiments and the cement paste of the above embodiments, omitting the admixture, and aramid The table below shows the results of a bending strength test comparing a product in which fibers are layered and arranged and impregnated with a low-viscosity cement paste without an admixture, and a conventional product without laminated aramid fibers.
（第２表）
Ｏ試験条件
供試品： ｌ Ｑｍｍ厚Ｘ８０ ｍｍ幅×１６０ｒｆ
１ｒｎ長さ、
両端支持の中央集中荷重（１０トン万能試験機使用）、
荷重の負荷速度 ３ｒｒｍｎ／分、
以上の様に、従来品に対して格段に優れる曲げ強度を示
した。(Table 2) O test condition sample: l Qmm thickness x 80 mm width x 160rf
1rn length, centrally concentrated load with support at both ends (using a 10 ton universal testing machine), loading speed 3rrmn/min, as shown above, it showed a bending strength that was significantly superior to the conventional product.
即ち、前記の構成からなる本発明のセメント複合材は、
ミクロン単位の極めて微細なアラミド繊維が集束されて
層を成すアラミド繊維層に、低粘度セメントペーストが
充分に含浸し、その低粘度セメントペーストに混和して
いる合成樹脂エマルジヨンが、セメント粒子間ならびに
アラミド繊維間に連続的なフィルム状をなして介在し、
セメント粒子間ならびにセメント粒子とアラミド繊維間
を接着作用するものと推定される。従って、完全固化し
た後、アラミド繊維とセメントが完全に一体物となって
有機的に結合し、その結合に基づいて、優れた物理的性
質を有するアラミド繊維が積極的に高応力を担持し、前
記の優れた曲げ強度が奏されるものと推定される。なお
、前記の合成樹脂エマμジ３ンの媒体としての特有作用
の存在は、前記第２表の「混和剤を省略した供試材」が
、顕著に曲げ強度を低下させる事実から観て明らかであ
る。That is, the cement composite material of the present invention having the above-mentioned configuration,
The aramid fiber layer, which is made up of extremely fine aramid fibers on the micron scale, is sufficiently impregnated with low-viscosity cement paste, and the synthetic resin emulsion mixed in the low-viscosity cement paste forms a layer between the cement particles and between the aramid fibers. interposed between the fibers in the form of a continuous film,
It is estimated that it acts as an adhesive between cement particles and between cement particles and aramid fibers. Therefore, after complete solidification, the aramid fibers and cement become completely integrated and organically bond, and based on this bond, the aramid fibers with excellent physical properties actively support high stress. It is presumed that the above-mentioned excellent bending strength is exhibited. The presence of the above-mentioned specific effect of the synthetic resin Emulsion 3 as a medium is clear from the fact that the ``sample materials omitted from the admixture'' in Table 2 above significantly reduce the bending strength. It is.
つぎに、本発明の構成におけるアラミド繊維の混入率が
作用効果に及ぼす相関を述べると下表の通シになる。Next, the relationship between the mixing ratio of aramid fibers and the effects in the structure of the present invention will be described as shown in the table below.
（第３表）
上表の通シであり、混入率と積層枚数は１．８９／ ｖ
ｏ ｌ、３枚〜８．６Ｖｖｏｌ、６枚が好ましく、こ
の領域においては、安定した高品質の曲げ強度が得られ
る。(Table 3) The above table is consistent, and the mixing rate and number of laminated sheets are 1.89/v
OL, 3 sheets to 8.6 Vvol, 6 sheets is preferable, and in this range, stable and high quality bending strength can be obtained.
「発明の効果」
以上の様に、本発明のセメント複合材は、極めて優れた
引張シ強度を有し、セメント製品の機械的性質を特段に
改良向上することができるので、セメント製品の軽量小
形化、ならびに、金属材料等に代る新規構造部材として
の用途開発等を積極的に促進する多大の効果がある。"Effects of the Invention" As described above, the cement composite material of the present invention has extremely excellent tensile strength and can particularly improve the mechanical properties of cement products. It has a great effect of actively promoting the development of new structural members in place of metal materials and the like.
第１図：本発明一実施例のセメント複合材の内部構造を
示す斜視図
主な符号、１：アラミド繊維、２：低粘度セメントペー
スト、３：高粘度セメントペースト特許出願人 三重
アサノコンクリート株式会社（ほか１名）代理人弁理士
岡 賢 美第１図Figure 1: Perspective view showing the internal structure of a cement composite material according to an embodiment of the present invention Main symbols: 1: Aramid fiber, 2: Low viscosity cement paste, 3: High viscosity cement paste Patent applicant Mie Asano Concrete Co., Ltd. (1 other person) Representative Patent Attorney Masami Oka Figure 1
Claims (1)
配列したアラミド繊維層と、合成樹脂エマルジョンを混
合した低粘度セメントペーストとを、サンドイッチ状に
積層配列し、前記の低粘度セメントペーストを前記アラ
ミド繊維層に含浸させて固化したことを特徴とするセメ
ント複合材。(1) An aramid fiber layer in which bundled fine aramid fibers are arranged in the required axial direction and a low-viscosity cement paste mixed with a synthetic resin emulsion are layered in a sandwich-like arrangement, and the low-viscosity cement paste is A cement composite material characterized by being impregnated with the aramid fiber layer and solidified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17020585A JPS6230036A (en) | 1985-07-31 | 1985-07-31 | Cement composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17020585A JPS6230036A (en) | 1985-07-31 | 1985-07-31 | Cement composite material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6230036A true JPS6230036A (en) | 1987-02-09 |
| JPH024420B2 JPH024420B2 (en) | 1990-01-29 |
Family
ID=15900611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17020585A Granted JPS6230036A (en) | 1985-07-31 | 1985-07-31 | Cement composite material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6230036A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0312313U (en) * | 1989-06-21 | 1991-02-07 |
-
1985
- 1985-07-31 JP JP17020585A patent/JPS6230036A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0312313U (en) * | 1989-06-21 | 1991-02-07 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH024420B2 (en) | 1990-01-29 |
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