JPS61257562A - Reinforcing material for cement hardened article - Google Patents
Reinforcing material for cement hardened articleInfo
- Publication number
- JPS61257562A JPS61257562A JP9759285A JP9759285A JPS61257562A JP S61257562 A JPS61257562 A JP S61257562A JP 9759285 A JP9759285 A JP 9759285A JP 9759285 A JP9759285 A JP 9759285A JP S61257562 A JPS61257562 A JP S61257562A
- Authority
- JP
- Japan
- Prior art keywords
- reinforcing material
- cement
- reinforcing
- based cured
- fibers
- 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
Landscapes
- Reinforcement Elements For Buildings (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (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
この発明はコンクリート等のセメント系硬化物に埋設し
補強するセメント系硬化物用補強材に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a reinforcing material for cement-based cured products, which is embedded in and reinforced in cement-based cured products such as concrete.
発明が解決しようとする問題点
炭素繊維あるいはガラス繊維をコンクリート等の補強材
として用いることはよく知られている。また、炭素ある
いはガラス繊維を軸方向に配向し強化してなった繊維強
化合成樹脂（ＦＲＰ）の棒状体を補強材として用いる提
案もある。しかし炭素あるいはガラス繊維は引張強度、
引張弾性率が高く、配向方向のセメント系硬化物の剛性
を高めるには寄与するが、伸度が殆んどないので、母材
のセメント系硬化物の物性、あるいは製品の要求物性に
応じた剛性あるいは伸度を製品に付与することはむづか
しかった。Problems to be Solved by the Invention It is well known that carbon fibers or glass fibers are used as reinforcing materials for concrete and the like. There is also a proposal to use a rod-shaped body of fiber-reinforced synthetic resin (FRP), which is made by reinforcing carbon or glass fibers oriented in the axial direction, as a reinforcing material. However, carbon or glass fiber has tensile strength,
It has a high tensile modulus and contributes to increasing the rigidity of the cement-based cured product in the orientation direction, but it has almost no elongation, so it can be It has been difficult to impart rigidity or elongation to products.
この発明は上記事情に鑑みなされたものである。その目
的は高い引張強度、引張弾性率を備え、しかも適度の伸
度を有するＦＲＰ製のセメント系硬化物用補強材を提案
するにある。This invention was made in view of the above circumstances. The purpose is to propose a reinforcing material for cement-based cured products made of FRP that has high tensile strength, tensile modulus, and appropriate elongation.
問題点を解決するための手段 この発明になるセメント系硬化物用補強材は。Means to solve problems The present invention is a reinforcing material for cement-based cured products.
炭素繊維あるいはガラス繊維強化した合成樹脂製の中空
棒状体であり、炭素繊維あるいはガラス繊維は中空棒状
体の軸を中心に螺旋方向に配向していることを特徴とす
る。It is a hollow rod-shaped body made of synthetic resin reinforced with carbon fibers or glass fibers, and is characterized in that the carbon fibers or glass fibers are oriented in a helical direction around the axis of the hollow rod-shaped body.
軸に対する螺旋配向方向は緩い角度であり。The direction of helical orientation with respect to the axis is at a gentle angle.
その角度は補強材に付与する伸度に応じて設定される。The angle is set according to the elongation given to the reinforcing material.
この補強材を構成する母材樹脂としては、エポキシ系、
不飽和ポリエステル系等の熱硬化性樹脂、あるいはポリ
アミド系、ポリエステル系等の熱可塑性合成樹脂が用い
られる。なお中空棒状の外周面をとりまいてリング状に
膨出した節等により凹凸部を設け、埋設したコンクリー
トへの定着強度の向上を図ることもできる。また、補強
繊維の配向方向を螺旋方向のほか軸直線方向の２方向と
なし、適度の伸度と剛性を補強材に付与する場合もある
。The base resins that make up this reinforcing material include epoxy,
Thermosetting resins such as unsaturated polyesters, or thermoplastic synthetic resins such as polyamides and polyesters are used. Incidentally, it is also possible to provide an uneven portion with ring-shaped nodes surrounding the outer peripheral surface of the hollow bar to improve the anchoring strength to the buried concrete. In some cases, reinforcing fibers are oriented in two directions, including the helical direction and the axial linear direction, to impart appropriate elongation and rigidity to the reinforcing material.
第１図はこの発明になるセメント系硬化物用補強材１で
あり、エポキシ系の母材樹脂２を用い、断面円形の棒状
をなし炭素繊維の長繊維糸条からなる補強繊維３が軸４
に対し交差する２つの螺旋方向に所定の角度θを保ち配
向し埋設しである。その外周面には所定の間隔を保ちフ
ープ方向にリング状に膨出した節部５が形成されている
。FIG. 1 shows a reinforcing material 1 for cement-based cured products according to the present invention, in which an epoxy base resin 2 is used, the reinforcing fibers 3 are shaped like rods with a circular cross section and are made of long fiber yarns of carbon fibers.
It is oriented and buried at a predetermined angle θ in two helical directions that intersect with each other. Knots 5 are formed on the outer circumferential surface thereof at predetermined intervals and bulge in a ring shape in the hoop direction.
作用・効果 このセメント系硬化物用補強材は以上の構成からなる。Action/effect This reinforcing material for cement-based cured products has the above structure.
この補強材は補強繊維が螺旋方向に配向しているので、
補強材の伸度は補強繊維のそれより大である。軸に対す
る繊維の配向方向θを大とすることにより、伸度を大き
くできる。This reinforcing material has reinforcing fibers oriented in a helical direction, so
The elongation of the reinforcement is greater than that of the reinforcing fibers. By increasing the orientation direction θ of the fibers with respect to the axis, the elongation can be increased.
従ってセメント系硬化物母材の物性、所望の製品物性等
に応じて好適な伸度をもった補強材をつくることができ
る。また、補強繊維は直接硬化物に混入しないので、容
易に所望の方向に配向でき、混入による折損等が起らず
、セメントに弱いガラス繊維もアルカリ劣化することが
ない。Therefore, it is possible to produce a reinforcing material with suitable elongation depending on the physical properties of the cement-based cured material base material, the desired physical properties of the product, etc. Furthermore, since the reinforcing fibers are not directly mixed into the cured product, they can be easily oriented in a desired direction, and breakage due to mixing does not occur, and the glass fibers, which are weak against cement, do not deteriorate with alkali.
なお、中空部は第２図のごとく、コーン状の楔６を打込
み定着板７の孔に挿込み係止して、補強材に緊張をかけ
プレストレスを導入する等に用い好適である。The hollow portion is suitable for use, as shown in FIG. 2, for inserting and locking a cone-shaped wedge 6 into a hole in the fixing plate 7 to apply tension to the reinforcing material and introduce prestress.
第１図はこの発明になるセメント系硬化物用補強材の斜
視図、第２図は中空部に楔を挿入し定着板に係止した補
強材の断面図である。
１・・セメント系硬化物用補強材、２・・補強材母材樹
脂、３・・補強繊維、４・・軸、５・φ節部、６・・楔
、７・・定着板。
第１図FIG. 1 is a perspective view of a reinforcing material for a cement-based cured product according to the present invention, and FIG. 2 is a cross-sectional view of the reinforcing material in which a wedge is inserted into a hollow portion and secured to a fixing plate. 1. Reinforcing material for cement-based cured material, 2. Reinforcing material base material resin, 3. Reinforcing fiber, 4. Shaft, 5. φ node, 6. Wedge, 7. Fixing plate. Figure 1
Claims (1)
用補強材において、炭素繊維あるいはガラス繊維強化し
た合成樹脂製の中空棒状体からなり、前記炭素繊維ある
いはガラス繊維は中空棒状体の軸を中心に螺旋方向に配
向していることを特徴とするセメント系硬化物用補強材
。(1) A reinforcing material for a cement-based cured product to be embedded in a cement-based cured product is made of a hollow rod-shaped body made of synthetic resin reinforced with carbon fiber or glass fiber, and the carbon fiber or glass fiber has an axis of the hollow rod-shaped body. A reinforcing material for cement-based hardened materials characterized by being oriented in a helical direction at the center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9759285A JPS61257562A (en) | 1985-05-08 | 1985-05-08 | Reinforcing material for cement hardened article |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9759285A JPS61257562A (en) | 1985-05-08 | 1985-05-08 | Reinforcing material for cement hardened article |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61257562A true JPS61257562A (en) | 1986-11-15 |
Family
ID=14196505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9759285A Pending JPS61257562A (en) | 1985-05-08 | 1985-05-08 | Reinforcing material for cement hardened article |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61257562A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08199733A (en) * | 1995-01-20 | 1996-08-06 | Railway Technical Res Inst | Fiber reinforced plastic rod |
| JPH08199734A (en) * | 1995-01-20 | 1996-08-06 | Railway Technical Res Inst | Wedge for widening end of fiber reinforced plastic hollow rod |
| JP2018109326A (en) * | 2017-01-05 | 2018-07-12 | 学校法人東京理科大学 | Fastening jig and reinforcing device |
-
1985
- 1985-05-08 JP JP9759285A patent/JPS61257562A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08199733A (en) * | 1995-01-20 | 1996-08-06 | Railway Technical Res Inst | Fiber reinforced plastic rod |
| JPH08199734A (en) * | 1995-01-20 | 1996-08-06 | Railway Technical Res Inst | Wedge for widening end of fiber reinforced plastic hollow rod |
| JP2018109326A (en) * | 2017-01-05 | 2018-07-12 | 学校法人東京理科大学 | Fastening jig and reinforcing device |
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