JPH0132058B2 - - Google Patents
Info
- Publication number
- JPH0132058B2 JPH0132058B2 JP60076699A JP7669985A JPH0132058B2 JP H0132058 B2 JPH0132058 B2 JP H0132058B2 JP 60076699 A JP60076699 A JP 60076699A JP 7669985 A JP7669985 A JP 7669985A JP H0132058 B2 JPH0132058 B2 JP H0132058B2
- Authority
- JP
- Japan
- Prior art keywords
- string
- core material
- protrusions
- reinforcing member
- reinforcing
- 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.)
- Expired
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/07—Reinforcing elements of material other than metal, e.g. of glass, of plastics, or not exclusively made of metal
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Reinforced Plastic Materials (AREA)
- Moulding By Coating Moulds (AREA)
- Ropes Or Cables (AREA)
- Laminated Bodies (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、表面に突起を有する合成樹脂製補強
部材及びその製造する方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a synthetic resin reinforcing member having protrusions on its surface and a method for manufacturing the same.
トンネル内の岩盤を固定する等の目的のため
に、岩盤に穴を穿ち、ロツクボルトと呼ばれる補
強部材を埋め込むことは知られている。鋼製のロ
ツクボルトは、トンネル内等の高温多湿となりや
すい雰囲気において、腐蝕し、強度や剛性が低下
することから、耐蝕性で作業性の良い合成樹脂製
のロツクボルトが注目されている。又、コンクリ
ート用補強部材等においても、耐蝕性の観点か
ら、鉄筋に代り得る合成樹脂製補強部材が注目さ
れている。このような、補強部材においては、岩
盤やコンクリートへの付着性を高めるために、表
面に突起を設けることが有効とされている。
It is known to drill holes in rock and embed reinforcing members called lock bolts in order to secure the rock in a tunnel. Lock bolts made of steel corrode in environments that tend to be hot and humid, such as in tunnels, resulting in a decrease in strength and rigidity, so lock bolts made of synthetic resin are attracting attention because they are corrosion resistant and have good workability. Furthermore, synthetic resin reinforcing members that can replace reinforcing bars are attracting attention from the viewpoint of corrosion resistance in reinforcing members for concrete and the like. In such reinforcing members, it is considered effective to provide protrusions on the surface in order to improve adhesion to rock or concrete.
鋼製の補強部材と同等以上の引張り強度を得る
ために、合成樹脂製の補強部材には、炭素繊維等
の引張り強度の高い補強繊維を充てんすることが
通常行なわれている。このような繊維強化合成樹
脂からなる補強部材の表面に突起を設ける方法に
は、表面を切削する方法が知られている。（特開
昭59−122655号公報参照）切削による方法におい
ては、連続した補強繊維が切断され、補強部材長
手方向の引張り強度が低下してしまうとともに、
形成された突起部が破壊されやすい欠点がある。
一方、本発明者等は、ガラスロービング等の連続
繊維束を補強部材表面に巻き付けることにより突
起を形成することを考えてみた。しかしながら、
突起を密着性よく表面に形成するためには、ガラ
スロービング等の連続繊維束を充分に埋め込まな
ければならず、充分な高さを持つた突起を形成で
きないことが判明した。
In order to obtain a tensile strength equal to or higher than that of steel reinforcing members, synthetic resin reinforcing members are usually filled with reinforcing fibers having high tensile strength, such as carbon fibers. A method of cutting the surface is known as a method of providing protrusions on the surface of such a reinforcing member made of fiber-reinforced synthetic resin. (Refer to Japanese Unexamined Patent Publication No. 59-122655) In the cutting method, the continuous reinforcing fibers are cut, and the tensile strength in the longitudinal direction of the reinforcing member is reduced.
There is a drawback that the formed protrusions are easily destroyed.
On the other hand, the present inventors considered forming protrusions by winding a continuous fiber bundle such as a glass roving around the surface of a reinforcing member. however,
In order to form protrusions on the surface with good adhesion, continuous fiber bundles such as glass rovings must be sufficiently embedded, and it has been found that protrusions with sufficient height cannot be formed.
本発明は、合成樹脂製の補強部材表面に充分な
高さを持つた突起部を密着性良く形成せしめた補
強部材及びその製造方法を提供するものであり、
合成樹脂製芯材の外周面に、紐状体を巻き付ける
ことにより突起を形成せる、表面に突起を有する
補強部材において、前記紐状体が連続繊維束をヨ
つたヨり紐であることを特徴とする表面に突起を
有する補強部材及び表面部が未固化又は半固化状
態の合成樹脂からなる芯材の外周面に、連続繊維
束を複数本ヨつて形成したヨリ紐を巻き付けるこ
とにより芯材とヨリ紐を一体固化せしめ、芯材表
面に突起部を形成せしめることを特徴とする表面
に突起を有する補強部材の製造方法に関するもの
である。
The present invention provides a reinforcing member in which protrusions with sufficient height are formed with good adhesion on the surface of a reinforcing member made of synthetic resin, and a method for manufacturing the same.
A reinforcing member having protrusions on its surface, in which protrusions are formed by winding a string-like body around the outer peripheral surface of a synthetic resin core material, characterized in that the string-like body is a twisted string that weaves a continuous fiber bundle. By winding a twisted string formed by twisting a plurality of continuous fiber bundles around the outer circumferential surface of a reinforcing member having protrusions on the surface and a core material whose surface portion is made of unsolidified or semi-solidified synthetic resin, the core material and The present invention relates to a method for manufacturing a reinforcing member having protrusions on its surface, characterized by integrally solidifying twisting strings and forming protrusions on the surface of the core material.
添付第１図に示す、本発明の典型的な製法例に
従つて本発明を説明する。マツトやロービング等
の連続した補強繊維１を未固化の熱硬化性樹脂や
熱可塑性樹脂槽２に導入し、樹脂を繊維に含浸さ
せる。含浸樹脂量をスクウイーズ４により調節
し、必要により樹脂未含浸の連続した補強繊維３
とともに、引抜き成形金型５を通過させ、未固化
又は半固化状態の所定断面形状を有する芯材を連
続的に形成させる。少なくとも芯材表面が未固化
又は半固化状態のうちに、ガラスロービング等の
連続繊維束を複数本ヨつて形成したヨリ紐６（以
下単にヨリ紐という）を巻き付け第３図ａ〜ｃに
例を示すヨリ紐６による突起部を形成する。その
後、常温又はオーブン７中で芯材とヨリ紐を一体
固化させ、引き取り装置８により引き取り、必要
な長さに切断し、合成樹脂製補強部材を製造する
ものである。 The present invention will be explained in accordance with a typical manufacturing method example of the present invention shown in the attached FIG. Continuous reinforcing fibers 1 such as pine or roving are introduced into an unsolidified thermosetting resin or thermoplastic resin tank 2, and the fibers are impregnated with resin. Adjust the amount of impregnated resin with a squeezer 4, and add continuous reinforcing fibers 3 that are not impregnated with resin if necessary.
At the same time, the core material is passed through a pultrusion mold 5 to continuously form a core material having a predetermined cross-sectional shape in an unsolidified or semi-solidified state. While at least the surface of the core material is in an unsolidified or semi-solidified state, a twisted string 6 (hereinafter simply referred to as twisted string) formed by twisting a plurality of continuous fiber bundles such as glass roving is wound around it, as shown in the examples shown in Fig. 3 a to c. A protrusion is formed by the twist string 6 shown. Thereafter, the core material and twisting string are solidified together at room temperature or in an oven 7, taken off by a take-off device 8, and cut into a required length to produce a synthetic resin reinforcing member.
第３図ａ，ｂのようにヨリ紐６を芯材１２に巻
き付けるためには、引き取り装置８の引き取り操
作を巻き付け操作が終了するまで停止しておけば
よい。ａでは、ヨリ紐６が巻き終わつた後は、一
旦ヨリ紐を切断し、新らたに巻き始めればよい
が、ｂのようにヨリ紐を切断することなく、芯材
の引き取り操作に伴つて、次の巻く操作に至る芯
材の長さ方向表面部にヨリ紐を形成させてもよ
い。第３図ｃは、ヨリ紐を巻く操作及び芯材を引
き取る操作をともに連続的に行なうことにより形
成される、ラセン状の突起である。 In order to wind the twisted string 6 around the core material 12 as shown in FIGS. 3a and 3b, the pulling operation of the pulling device 8 may be stopped until the winding operation is completed. In a, after the twisting string 6 has finished winding, it is sufficient to cut the twisting string and start winding anew, but as in b, the twisting string is not cut and the core material is taken up. A twisted string may be formed on the longitudinal surface of the core material leading to the next winding operation. FIG. 3c shows a helical protrusion formed by continuously winding the twisting cord and pulling out the core material.
第２図ａ，ｂには、ヨリ紐１０と従来のガラス
ロービング１１が芯材１２表面に付着した状態を
示している。ヨリ紐１０及びガラスロービング１
１として、同一重量のガラスロービングを２本用
い、ヨリ紐１０では２本をヨつたもの、ガラスロ
ービング１１では２本を平行に束ねたものであ
る。ヨリ紐１０を用いることより、ヨつていない
ガラスロービング１１に比べ、それ自身の厚さが
厚くなる（t1＞t2）とともに、芯材１２に埋め込
まれる度合も少なくなる。（r1＞r2）又、ヨリ紐
１０の場合には、ヨリ紐の凸部１３と芯材との圧
延力が特に強くなり、圧延力が均一となりやすい
ガラスロービング１１に比べ、付着力が増大す
る。従つて、ヨリ紐を用いた、本発明における突
起部は、芯材との付着性が良好であるとともに、
より高い突起とすることができる。 FIGS. 2a and 2b show a state in which the twisting string 10 and the conventional glass roving 11 are attached to the surface of the core material 12. Twisted string 10 and glass roving 1
1, two glass rovings of the same weight are used, the twisted string 10 is made by twisting the two pieces, and the glass roving 11 is made by bundling the two pieces in parallel. By using the twisted string 10, the thickness of the twisted string 10 becomes thicker (t 1 > t 2 ) than the untwisted glass roving 11, and the degree to which the twisted string 10 is embedded in the core material 12 is also reduced. (r 1 > r 2 ) In addition, in the case of the twisted string 10, the rolling force between the convex portion 13 of the twisted string and the core material is particularly strong, and the adhesion force is increased compared to the glass roving 11, where the rolling force tends to be uniform. increase Therefore, the protrusion in the present invention using the twisted string has good adhesion to the core material, and
It can be a higher protrusion.
ヨリ紐は、予め樹脂を含浸し、未固化又は半固
化状態にしておいてもよく、芯材表面にヨリ紐に
対して充分浸透し得る未固化の樹脂が存在してい
る場合には、樹脂未含浸のヨリ紐を巻き付けても
よい。ヨリ紐に張力をかけながら、芯材に巻き付
ける方が、芯材とヨリ紐との付着性が高くなり好
ましい。ヨリ紐は、予めヨつたものでもよく、芯
材に巻き付ける操作に連動して、すなわち、ヨり
ながら巻き付けてもよい。ヨリ紐のヨり本数は芯
材の外径やヨリ紐の太さにより変化するものであ
るが、２〜10本、好ましくは２〜４本であり、
又、一本当りの太さは、芯材が丸棒で、その直径
が１cmであるとすれば、この芯材に対して４〜10
ｇ／ｍに相当する太さが好ましい。ヨリ紐のヨる
ピツチ数は芯材の外径やヨリ紐の太さ、又はヨり
本数により変化するものであるが、一本当りの太
さが２〜３ｇ／ｍ、で２本ヨるとすれば３〜15
回／10cm、好ましくは５〜10回／10cmである。 The twisted string may be impregnated with resin in advance and left in an unsolidified or semi-solidified state.If there is unsolidified resin on the surface of the core material that can sufficiently penetrate the twisted string, the resin may be impregnated with resin in advance. You may also wrap an unimpregnated twist string around it. It is preferable to wrap the twisted string around the core material while applying tension, as this increases the adhesion between the core material and the twisted string. The twisted string may be twisted in advance, or may be wound in conjunction with the operation of winding it around the core material, that is, while being twisted. The number of twists of the twist string varies depending on the outer diameter of the core material and the thickness of the twist string, but it is 2 to 10, preferably 2 to 4,
Also, if the core material is a round bar and its diameter is 1 cm, the thickness of each piece is 4 to 10 cm for this core material.
A thickness corresponding to g/m is preferred. The number of twists of the twist string varies depending on the outer diameter of the core material, the thickness of the twist string, or the number of twists, but if the thickness of one string is 2 to 3 g/m, two twists will occur. If so, 3 to 15
times/10cm, preferably 5 to 10 times/10cm.
ヨリ紐を形成する連続繊維束としては、ガラス
繊維フイラメントを束にしたガラスロービング
や、カーボン繊維フイラメントを束にしたトウが
代表的なものである。引張り強度を特に必要とす
る場合には、カーボン繊維のトウが好ましく、カ
ーボン繊維としては、アクリル系、ピツチ系、レ
ーヨン系等を採用し得る。芯材の形状は、円柱状
や角柱状が好ましいが、断面が偏平な板状でもよ
い。芯材の中心部には、ガラス繊維のロービング
やカーボン繊維のトウのごとき、長さ方向に連続
した補強繊維を配置し、必要に応じ芯材表面部に
はコンテイニユアスストランドマツト状補強繊維
を配置することが好ましい。芯材中心部は、従来
の鋼製補強部材としての外周部に繊維強化合成樹
脂を配置した芯材としてもよい。本発明の補強部
材は、ロツクボルトや鉄筋代替部材あるいは、プ
レストレストコンクリート部材その他の各種補強
部材として使用し得る。具体的には、高い耐久性
が要求される石油プラツトフオーム等の海洋構造
物や化学工場、融雪剤等の塩害に悩む道路橋の新
設や補修のための補強部材として、あるいは磁化
しない性質を利用して、核融合炉やリニアモータ
ーカーの桁座として使用し得る。 Typical continuous fiber bundles forming the twist string are glass roving made of glass fiber filaments and tow made of carbon fiber filaments. When tensile strength is particularly required, carbon fiber tow is preferable, and acrylic, pitch, rayon, etc. can be used as the carbon fiber. The shape of the core material is preferably cylindrical or prismatic, but may also be plate-like with a flat cross section. In the center of the core material, continuous reinforcing fibers such as glass fiber roving or carbon fiber tow are placed in the length direction, and if necessary, continuous strand pine-shaped reinforcing fibers are placed on the surface of the core material. It is preferable to arrange. The center portion of the core material may be a conventional steel reinforcing member in which a fiber-reinforced synthetic resin is disposed on the outer periphery. The reinforcing member of the present invention can be used as a rock bolt, a reinforcing steel substitute member, a prestressed concrete member, and other various reinforcing members. Specifically, it is used as a reinforcing material for the construction or repair of offshore structures such as petroleum platforms that require high durability, chemical factories, and road bridges that suffer from salt damage such as snow melting agents, or as reinforcing materials for the construction and repair of road bridges that suffer from salt damage such as snow melting agents. It can be used as a spar for fusion reactors and linear motor cars.
本発明において、芯材又はヨリ紐を形成する補
強繊維としては、カーボン繊維やガラス繊維の
他、ボロン繊維、各種金属繊維等の無機繊維又
は、麻、ビニロン、アラミドポリアミド、ポリエ
ステル等の天然又は合成繊維でもよく、これらを
単独であるいは２種以上組み合せて使用可能であ
る。補強繊維の形態は、チヨツプドストランドマ
ツト、コンテイニユアスストランドマツト、サー
フエシングマツト、不織布、クロス、バイアスク
ロス、ロービング等各種の形態を単独であるいは
組み合せて使用できる。一方、補強部材を構成す
る樹脂は、コンクリート補強用として使用する場
合にはコンクリートのアルカリ性に対して強いこ
とから、エポキシ樹脂やエポキシアクリレート樹
脂が好ましいが、エポキシ系樹脂の他、不飽和ポ
リエステル樹脂、フエノール樹脂、等の熱硬化性
樹脂でもよく、ポリカーボネート樹脂、ポリ塩化
ビニル樹脂、ポリプロピレン樹脂等の熱可塑性樹
脂であつてもよい。芯材中の補強繊維の充てん割
合は、芯材の強度や剛性を充分に確保するため
に、40〜80vol％、好ましくは60〜80vol％の範囲
から選定するとよい。又、表面にヨリ紐で形成さ
れた突起部中の樹脂量は少なくとも50vol％以上
含浸することが好ましい。 In the present invention, reinforcing fibers forming the core material or twist string include carbon fibers, glass fibers, inorganic fibers such as boron fibers, various metal fibers, natural or synthetic fibers such as hemp, vinylon, aramid polyamide, polyester, etc. Fibers may be used, and these can be used alone or in combination of two or more. The reinforcing fibers can be in various forms such as chopped strand mat, continuous strand mat, surfacing mat, nonwoven fabric, cloth, bias cloth, and roving, and can be used alone or in combination. On the other hand, when using the reinforcing member for reinforcing concrete, epoxy resin or epoxy acrylate resin is preferable because it is strong against the alkalinity of concrete, but in addition to epoxy resin, unsaturated polyester resin, It may be a thermosetting resin such as a phenolic resin, or a thermoplastic resin such as a polycarbonate resin, a polyvinyl chloride resin, or a polypropylene resin. The filling ratio of reinforcing fibers in the core material is preferably selected from the range of 40 to 80 vol%, preferably 60 to 80 vol%, in order to ensure sufficient strength and rigidity of the core material. Further, it is preferable that the amount of resin impregnated into the protrusions formed by the twisted strings on the surface is at least 50 vol% or more.
実施例 １
１本当り4.45ｇ／ｍのガラスロービング22本に
不飽和ポリエテル樹脂を含浸し、直径8.2mmの引
抜き金型を通過させて、ガラス繊維強化丸棒を芯
材として形成させた。少なくとも表面が未硬化又
は半硬化状態の芯材を引き取りながら、不飽和ポ
リエステル樹脂を含浸したガラスロービングヨリ
紐を巻き付けることにより10mmピツチでラセン状
の突起を形成させた。その後、80℃の炉の中を通
過させ、突起及び芯材を一体的に硬化せしめた。
ガラスロービングヨリ紐は、１本当り2.22ｇ／ｍ
のガラスロービング２本を８回／10cmの割合でヨ
つたものを使用した。この結果、直径８mmのガラ
ス繊維強化丸棒に幅２mm、高さ２mmのラセン状突
起が10mmのピツチで強固に形成された、補強部材
（）を得ることができた。Example 1 Twenty-two glass rovings each weighing 4.45 g/m were impregnated with an unsaturated polyether resin and passed through a drawing die with a diameter of 8.2 mm to form a glass fiber-reinforced round rod as a core material. While taking the core material whose surface was at least uncured or semi-cured, spiral protrusions were formed at a pitch of 10 mm by winding a glass roving twist string impregnated with unsaturated polyester resin. Thereafter, it was passed through an oven at 80°C to integrally harden the protrusions and core material.
Glass roving twist string is 2.22g/m per piece.
Two pieces of glass roving were rolled at a rate of 8 times/10 cm. As a result, it was possible to obtain a reinforcing member () in which helical protrusions 2 mm wide and 2 mm high were firmly formed at a pitch of 10 mm on a glass fiber-reinforced round bar 8 mm in diameter.
実施例 ２
ガラスロービング２本を15回／10cmの割合でヨ
つた以外は、実施例１と同様にして製造し、直径
８mmのガラス繊維強化丸棒に幅２mm、高2.5mmの
ラセン状突起が10mmのピツチで強固に形成され
た、補強部材（）を得た。Example 2 A glass roving was produced in the same manner as in Example 1 except that two glass rovings were rolled at a rate of 15 times/10 cm, and a helical projection with a width of 2 mm and a height of 2.5 mm was formed on a glass fiber-reinforced round bar with a diameter of 8 mm. A reinforcing member () was obtained that was strongly formed with a pitch of 10 mm.
参考例 １
ガラスロービング２本をヨらず巻き付ける以外
は、実施例１と同様にして製造し、直径８mmのガ
ラス繊維強化丸棒に幅2.5mm、高さ１mmのラセン
状突起が10mmのピツチで強固に形成された、補強
部材（）を得た。Reference Example 1 A product was manufactured in the same manner as in Example 1 except that two glass rovings were wrapped without twisting, and helical protrusions with a width of 2.5 mm and a height of 1 mm were arranged at a pitch of 10 mm around a glass fiber-reinforced round bar with a diameter of 8 mm. A strongly formed reinforcing member () was obtained.
参考例 ２
ガラスロービング２本をヨらずに、かつ、突起
の高さが０mmとなるように巻き付ける以外は、実
施例１と同様にして製造し、直径８mmのガラス繊
維強化丸棒に幅2.5mm、高さ０mmのラセン状体が
10mmのピツチで強固に形成された補強部材（）
を得た。Reference Example 2 Manufactured in the same manner as Example 1 except that two glass rovings were wrapped without twisting and the height of the protrusion was 0 mm, and a glass fiber-reinforced round bar with a diameter of 8 mm was wrapped with a width of 2.5 mm. mm, a helical body with a height of 0 mm
Reinforcement member strongly formed with 10mm pitch ()
I got it.
実施例 ３
一辺が、100mmのコンクリート製立方体の中央
に前記補強部材（）及び（）が立方体を貫通
するごとく埋め込んで固定した。引り試験機に前
記立方体を固定し、鋼製スリーブ中に挿入して樹
脂で固定した補強部材の一端を、前記スリーブを
介して引張り、コンクリートと補強部材との付着
強度を測定した。補強部材（）及び（）の付
着強度はそれぞれ、150Kg／cm2、135Kg／cm2であつ
た。Example 3 The reinforcing members () and () were embedded and fixed in the center of a concrete cube having a side of 100 mm so as to penetrate through the cube. The cube was fixed to a tensile testing machine, and one end of the reinforcing member inserted into a steel sleeve and fixed with resin was pulled through the sleeve to measure the adhesion strength between the concrete and the reinforcing member. The adhesion strengths of reinforcing members () and () were 150 Kg/cm 2 and 135 Kg/cm 2 , respectively.
比較例
前記補強部材（）及び（）について、実施
例と同様に測定したところ、補強部材（）は
120Kg／cm2、補強部材（）は100Kg／cm2であつ
た。Comparative Example When the reinforcing members () and () were measured in the same manner as in the example, the reinforcing members () were
The weight was 120Kg/cm 2 , and the weight of the reinforcing member ( ) was 100Kg/cm 2 .
本発明方法に従えば、繊維強化合成樹脂製の補
強用部材表面に突起を効率的に形成せしめること
ができる。本発明の補強部材の突起部は、連続繊
維束を複数本ヨつたヨリ紐であるため、芯材との
付着力が強いとともに、突起部を高く形成し得
る。従つて、本発明方法により得られる補強用部
材は、ロツクボルトや鉄筋代替品として、優れた
性能を発揮し得る。
According to the method of the present invention, protrusions can be efficiently formed on the surface of a reinforcing member made of fiber-reinforced synthetic resin. Since the protrusion of the reinforcing member of the present invention is a twisted string made of a plurality of continuous fiber bundles, it has strong adhesion to the core material and the protrusion can be formed high. Therefore, the reinforcing member obtained by the method of the present invention can exhibit excellent performance as a substitute for lock bolts and reinforcing bars.
第１図は、本発明方法の一例を示す概略側面
図、第２図ａ，ｂは、それぞれ、ヨリ紐及びヨつ
ていない連続繊維を芯材表面に付着させた状態を
示す、側面図、第３図ａ〜ｃは、ヨリ紐の巻き方
の例を示す概略正面図。
５……引抜き成形型、６……ヨリ紐、１２……
芯材。
FIG. 1 is a schematic side view showing an example of the method of the present invention, and FIGS. 2a and 2b are side views showing the state in which twisted strings and untwisted continuous fibers are attached to the surface of the core material, respectively. FIGS. 3a to 3c are schematic front views showing examples of how to wind the twist cord. 5...Pultrusion mold, 6...Twist string, 12...
Core material.
Claims (1)
けることにより突起を形成せる、表面に突起を有
する補強部材において、前記紐状体が連続繊維束
をヨつたヨリ紐であることを特徴とする表面に突
起を有する補強部材。 ２ ヨリ紐が連続繊維束を３〜15回／10cmのピツ
チ数でヨつたヨリ紐である特許請求の範囲第１項
記載の補強部材。 ３ 表面部が未固化又は半固化状態の合成樹脂か
らなる芯材の外周面に、連続繊維束を複数本ヨつ
て形成したヨリ紐を巻き付けることにより芯材と
ヨリ紐を一体固化せしめ、芯材表面に突起部を形
成せしめることを特徴とする表面に突起を有する
補強部材の製造方法。[Scope of Claims] 1. A reinforcing member having protrusions on its surface, in which protrusions are formed by winding a string-like body around the outer peripheral surface of a synthetic resin core material, wherein the string-like body twists a continuous fiber bundle. A reinforcing member having protrusions on its surface, which is a string. 2. The reinforcing member according to claim 1, wherein the twisted string is a twisted string that twists the continuous fiber bundle at a pitch of 3 to 15 times/10 cm. 3. By wrapping a twisted string formed by twisting a plurality of continuous fiber bundles around the outer peripheral surface of a core material whose surface portion is made of unsolidified or semi-solidified synthetic resin, the core material and twisted string are integrally solidified. 1. A method for manufacturing a reinforcing member having protrusions on a surface, the method comprising forming protrusions on the surface.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60076699A JPS6218246A (en) | 1985-04-12 | 1985-04-12 | Manufacture of reinforcing member having protuberance on surface thereof |
| CA 506465 CA1276481C (en) | 1985-04-12 | 1986-04-11 | Reinforcing member having a projection on its surface |
| GB08608806A GB2175364B (en) | 1985-04-12 | 1986-04-11 | Reinforcing member having a projection on its surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60076699A JPS6218246A (en) | 1985-04-12 | 1985-04-12 | Manufacture of reinforcing member having protuberance on surface thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6218246A JPS6218246A (en) | 1987-01-27 |
| JPH0132058B2 true JPH0132058B2 (en) | 1989-06-29 |
Family
ID=13612745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60076699A Granted JPS6218246A (en) | 1985-04-12 | 1985-04-12 | Manufacture of reinforcing member having protuberance on surface thereof |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS6218246A (en) |
| CA (1) | CA1276481C (en) |
| GB (1) | GB2175364B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2284031B (en) * | 1987-11-27 | 1995-11-08 | Gen Electric | Composite fastener |
| DE4025521A1 (en) * | 1990-06-29 | 1992-02-13 | Krueger & Schuette Kerapid | Self-supporting tiled dividing wall - has tight mesh grid or matting at core structure |
| JPH0718206B2 (en) * | 1989-09-14 | 1995-03-01 | 帝人株式会社 | Method of manufacturing structural rod |
| DE4102332C2 (en) * | 1991-01-26 | 1998-07-02 | Frank Gmbh & Co Kg Max | Balcony connection |
| GB2314100A (en) * | 1996-06-14 | 1997-12-17 | Techbuild Composites Limited | Reinforcing bars or rock bolts |
| GB9700796D0 (en) * | 1997-01-16 | 1997-03-05 | Camplas Technology | Improvements relating to reinforcing bars |
| DE29705865U1 (en) * | 1997-04-04 | 1997-06-05 | Dyckerhoff & Widmann AG, 81902 München | Reinforcement element made of steel, fiber composite materials or the like. |
| DE20205133U1 (en) | 2002-04-03 | 2002-07-25 | Bochumer Eisenhütte Heintzmann GmbH & Co. KG, 44793 Bochum | Lattice girders for the reinforcement of concrete structures |
| KR100674002B1 (en) * | 2004-06-29 | 2007-01-24 | 한국건설기술연구원 | Spiral reinforced concrete composite ribs and manufacturing apparatus |
| RU2320681C2 (en) * | 2005-12-19 | 2008-03-27 | Валерий Алексеевич Ерышев | Reinforcement member |
| PL2630100T3 (en) | 2010-10-21 | 2024-10-28 | Reforcetech Ltd. | Reinforcement bar and method for manufacturing same |
| DE102019117010A1 (en) * | 2019-06-25 | 2020-12-31 | Kraussmaffei Technologies Gmbh | Wrapping device |
-
1985
- 1985-04-12 JP JP60076699A patent/JPS6218246A/en active Granted
-
1986
- 1986-04-11 GB GB08608806A patent/GB2175364B/en not_active Expired
- 1986-04-11 CA CA 506465 patent/CA1276481C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CA1276481C (en) | 1990-11-20 |
| GB2175364B (en) | 1988-07-13 |
| JPS6218246A (en) | 1987-01-27 |
| GB2175364A (en) | 1986-11-26 |
| GB8608806D0 (en) | 1986-05-14 |
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