JPS63134548A - High strength cement product - Google Patents
High strength cement productInfo
- Publication number
- JPS63134548A JPS63134548A JP27675686A JP27675686A JPS63134548A JP S63134548 A JPS63134548 A JP S63134548A JP 27675686 A JP27675686 A JP 27675686A JP 27675686 A JP27675686 A JP 27675686A JP S63134548 A JPS63134548 A JP S63134548A
- Authority
- JP
- Japan
- Prior art keywords
- cement
- cement product
- present
- high strength
- strength cement
- 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 25
- 239000012783 reinforcing fiber Substances 0.000 claims description 8
- 229920003002 synthetic resin Polymers 0.000 claims description 2
- 239000000057 synthetic resin Substances 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- 239000003513 alkali Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- 239000004760 aramid Substances 0.000 description 2
- 229920003235 aromatic polyamide Polymers 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000012779 reinforcing material Substances 0.000 description 2
- 229920001567 vinyl ester resin Polymers 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229920002978 Vinylon Polymers 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011381 foam concrete Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000002990 reinforced plastic Substances 0.000 description 1
- 239000010959 steel Substances 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)
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、補強繊維と繊維強化合成樹脂製（ＦＲＰ製）
格子材で補強されたセメント製品に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention is directed to reinforcing fibers and fiber-reinforced synthetic resin (FRP)
It concerns cement products reinforced with lattice material.
［従来の技術及びその問題点］
耐アルカリガラス！ａ維等の補強繊維で補強されたセメ
ント製品（ＧＲＣ製品）やＦＲＰ製の格子状体で補強さ
れたセメント製品（強化プラスチックスＶｏＬ、３２．
Ｎｏ、１０１９Ｈ）等の高強度セメント製品は知られて
いる。しかしながら、ＧＲＣ製品においては、長期にわ
たる靭性が必ずしも充分でなく耐衝撃力を強く求められ
る用途には使いに＜＜、ＦＲＰ製格子状体で補強された
セメント製品においては、靭性は優れているものの、た
わみ初期の耐荷重がＧＲＣ製品よりも低く、初期耐荷重
を特に求められる用途には使いにくいのが現状である。[Conventional technology and its problems] Alkali-resistant glass! Cement products reinforced with reinforcing fibers such as a-fibers (GRC products) and cement products reinforced with FRP lattice bodies (Reinforced Plastics VoL, 32.
High strength cement products such as No. 1019H) are known. However, GRC products do not necessarily have sufficient long-term toughness and cannot be used in applications that require strong impact resistance.Cement products reinforced with FRP grids have excellent toughness, but Currently, the load capacity at the initial stage of deflection is lower than that of GRC products, making it difficult to use in applications that require particularly high initial load capacity.
［問題点を解決するための手段］
本発明は、前述の問題点を解決すべくなされたものであ
り、補強繊維及び繊維強化合成樹脂製格子状体により補
強されたことを特徴とする高強度セメント製品を提供す
るものである。[Means for Solving the Problems] The present invention has been made to solve the above-mentioned problems. The company provides cement products.
本発明におけるＦＲＰ製格子状体は、耐久性、補強効率
の最適化の理由で、ポリエステル、エポキシ、ビニール
エステル等の耐アルカリ性の樹脂で、カーボン、アラミ
ド、ガラス等の長繊維を直線状に被覆し、かつ、それら
を縦横（あるいは斜め）交互に蚕ね、積層して硬化させ
交差部に十分な強度をもたせ、マトリックス中での引抜
抵抗性を増すことが好ましい０本発明において補強繊維
はセメント製品全体に分散していることが好ましく、Ｆ
ＲＰ製格子状体は製品の引張応力が発生する部分に入れ
ることが補強効率上好ましい、また、セメントを主成分
とするマトリックス中において、補強繊維であるカーボ
ン、アラミド、ビニロン、スチール、セラミックス、ポ
リプロ、ガラス等の体積混入率は０．１〜ｌＯ％、好ま
しくは１〜５％とし、水セメント比は２０〜７０％、好
ましくは３０〜５０％とし、砂セメント比は０．５〜２
．０、好ましく ハ０．５〜１．５ 、特ニ０．８７〜
１．０ （７） ％ ルタルとすることが製品の欠は防
止、乾燥収縮、クラック分散性、強度、作業性の理由で
望ましい、補強繊維としては、５０ｍｍ程度までの短繊
維でもよく、長繊維であってもよく、マット状やクロス
状の繊維であってもよい、又、マトリックスとしてはポ
リエステル、エポキシ、ウレタン等が混入したレジンコ
ンクリートや軽量気泡コンクリートであってもよい。In order to optimize durability and reinforcing efficiency, the FRP lattice body in the present invention is made by covering long fibers such as carbon, aramid, and glass in a straight line with alkali-resistant resin such as polyester, epoxy, and vinyl ester. It is preferable that the reinforcing fibers are sewn vertically and horizontally (or diagonally) alternately, laminated and hardened to provide sufficient strength to the intersections and increase the pull-out resistance in the matrix. In the present invention, the reinforcing fibers are cement. Preferably dispersed throughout the product, F
In terms of reinforcement efficiency, it is preferable to insert the RP lattice in the parts of the product where tensile stress is generated.In addition, reinforcing fibers such as carbon, aramid, vinylon, steel, ceramics, and polypropylene are added to the cement-based matrix. The volume mixing rate of glass, etc. is 0.1-10%, preferably 1-5%, the water-cement ratio is 20-70%, preferably 30-50%, and the sand-cement ratio is 0.5-2.
．． 0, preferably Ha0.5~1.5, especially D0.87~
1.0 (7)% It is desirable to use rutal for the reasons of prevention of product defects, drying shrinkage, crack dispersibility, strength, and workability.As the reinforcing fiber, short fibers up to about 50 mm may be used, and long fibers may be used. The matrix may be resin concrete or lightweight cellular concrete mixed with polyester, epoxy, urethane, etc. as the matrix.
本発明のセメント製品は、各種土木・建築材料として広
く使用できる０例えば、フリーアクセスフロア−やケー
ブル用トラフ等に本発明のセメント製品を適用し、ＦＲ
Ｐ製格子状体をＧＲＣ製平板の引張り応力がより強く発
生する部分に入れておくことにより、従来のＧＲＣ製平
板と比べ、曲げ強度で２〜３倍、衝撃強度で５〜ｌＯ倍
となる。一方、ＦＲＰ製格子状体だけを入れたセメント
製品に比べ、たわみ初期の耐荷重が２倍となり、さらに
は最大荷重の６０％までの繰返し曲げ疲労時の「最大た
わみ」が尾以下、「残留たわみ」が１１５以下と極めて
優れた特性を有している。The cement product of the present invention can be widely used as various civil engineering and construction materials.For example, the cement product of the present invention can be applied to raised floors, cable troughs, etc.
By placing the P grid in the part of the GRC flat plate where tensile stress is stronger, the bending strength is 2 to 3 times higher and the impact strength is 5 to 10 times higher than that of a conventional GRC flat plate. . On the other hand, compared to cement products containing only FRP lattices, the load capacity at the initial stage of deflection is twice as high, and furthermore, the "maximum deflection" during repeated bending fatigue up to 60% of the maximum load is less than the "residual" It has extremely excellent properties with a deflection of 115 or less.
［実施例］
４５０ Ｘ ４５０ Ｘ ２３ｍｍの平板を以下の（１
）〜（４）の材質で準備し、４隅を支持した平板の中央
集中載荷曲げ時の荷重−たわみ曲線を求めた。結果を第
１図に示す。[Example] A 450 x 450 x 23 mm flat plate was prepared using the following (1
) to (4), and the load-deflection curve of a flat plate supported at its four corners was determined under central concentrated loading. The results are shown in Figure 1.
（１）本発明のセメント板（耐アルカリガラス繊維２ｗ
ｔ％及びＦＲＰ製格子状体を混入）（２）ＦＲＰ製格子
状体のみを混入したセメント板
（３）耐アルカリガラス繊維を３．５ｗｔＸのみ混入し
たセメント板
（４）セメント板
第１図の（１）〜（４）は前記（１）〜（４）に対応し
ている。(1) Cement board of the present invention (alkali-resistant glass fiber 2w
(2) Cement board mixed with FRP grid only (3) Cement board mixed with only 3.5wtX of alkali-resistant glass fiber (4) Cement board shown in Figure 1 (1) to (4) correspond to the above (1) to (4).
なお、セメントマトリックスは水・セメント比３０％、
ＦＲＰ製格子状体は、正方形の格子を形成する線状体の
幅４ ａｍ、厚み２ ｍｍ、線状体の間隔３０ｍｍ、マ
トリックス樹脂はビニルエステル樹脂、補強繊維はガラ
スロービングである。In addition, the cement matrix has a water/cement ratio of 30%,
In the FRP lattice body, the linear bodies forming a square lattice have a width of 4 am, a thickness of 2 mm, an interval of 30 mm between the linear bodies, a matrix resin is a vinyl ester resin, and a reinforcing fiber is a glass roving.
［発明の効果］
本発明は、ＧＲＣの耐久性の改善１ｍ維補強効率の最適
化、衝撃強度の改善の如き優れた効果を有する。[Effects of the Invention] The present invention has excellent effects such as improving the durability of GRC, optimizing the 1-meter fiber reinforcement efficiency, and improving the impact strength.
本発明のセメント製品は、−ｙ）リックスをＦＲＰ製格
子状体のみや鉄筋のみで補強したものに比べ使用強度域
つまり設計強度（たわみ初期の耐荷重）が高く、ＧＲＣ
に比べ靭性つまり衝撃強度がかなり高い等の優れた効果
を有する。The cement product of the present invention has a higher service strength range, that is, design strength (withstand load at the initial stage of deflection), than those in which -y) Rix is reinforced with only FRP lattice bodies or only with reinforcing bars, and has a higher GRC
It has excellent effects such as considerably higher toughness, that is, impact strength, compared to other materials.
本発明は、鉄筋コンクリートのように補強材が錆びずセ
メント中でも劣化をおこさないため、美観上あるいは耐
久性に優れた効果を有する。The present invention has excellent effects on aesthetics and durability because the reinforcing material does not rust and does not deteriorate even in cement, unlike reinforced concrete.
本発明は、ＦＲＰ製格子状体や鉄筋補強の場合と比較し
て、補強材の比例限界強度が高く、又、水硬性無機質マ
トリックスとの付着が良いため繰返し載荷曲げ試験にお
ける残留たわみも小さく疲労特性にも優れた効果を有す
る。In the present invention, the proportional limit strength of the reinforcing material is higher than that of FRP lattice bodies or reinforcing steel bars, and because it adheres well to the hydraulic inorganic matrix, residual deflection in repeated loading bending tests is small and fatigue is low. It also has excellent effects on properties.
第１図は、平板の中央集中載荷曲げ時の荷重−たわみ曲
線を表す図。
（１）−ｍ一本発明のセメント板における荷重−たわみ
曲線
（４）−−−セメント板のみにおける荷重−たわみ曲線FIG. 1 is a diagram showing a load-deflection curve when a flat plate is bent under a centrally concentrated load. (1)--Load-deflection curve for the cement board of the present invention (4)---Load-deflection curve for the cement board only
Claims (1)
強されたことを特徴とする高強度セメント製品。1. A high-strength cement product reinforced with reinforcing fibers and a fiber-reinforced synthetic resin grid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27675686A JPS63134548A (en) | 1986-11-21 | 1986-11-21 | High strength cement product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27675686A JPS63134548A (en) | 1986-11-21 | 1986-11-21 | High strength cement product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63134548A true JPS63134548A (en) | 1988-06-07 |
| JPH0438707B2 JPH0438707B2 (en) | 1992-06-25 |
Family
ID=17573906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27675686A Granted JPS63134548A (en) | 1986-11-21 | 1986-11-21 | High strength cement product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63134548A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05332071A (en) * | 1992-06-03 | 1993-12-14 | Kajima Corp | Concrete door |
| JP2008025183A (en) * | 2006-07-20 | 2008-02-07 | Kanaflex Corporation | Construction/civil engineering panel |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58155913A (en) * | 1982-03-12 | 1983-09-16 | 株式会社ヤクルト本社 | Manufacture of composite board for building |
| JPS6032608A (en) * | 1983-08-04 | 1985-02-19 | 株式会社栗本鐵工所 | Fiber reinforced cement molding |
-
1986
- 1986-11-21 JP JP27675686A patent/JPS63134548A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58155913A (en) * | 1982-03-12 | 1983-09-16 | 株式会社ヤクルト本社 | Manufacture of composite board for building |
| JPS6032608A (en) * | 1983-08-04 | 1985-02-19 | 株式会社栗本鐵工所 | Fiber reinforced cement molding |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05332071A (en) * | 1992-06-03 | 1993-12-14 | Kajima Corp | Concrete door |
| JP2008025183A (en) * | 2006-07-20 | 2008-02-07 | Kanaflex Corporation | Construction/civil engineering panel |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0438707B2 (en) | 1992-06-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |