JPH1143839A - Woven fabric reinforced in one direction and repairing or reinforcing - Google Patents
Woven fabric reinforced in one direction and repairing or reinforcingInfo
- Publication number
- JPH1143839A JPH1143839A JP9196889A JP19688997A JPH1143839A JP H1143839 A JPH1143839 A JP H1143839A JP 9196889 A JP9196889 A JP 9196889A JP 19688997 A JP19688997 A JP 19688997A JP H1143839 A JPH1143839 A JP H1143839A
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- Japan
- Prior art keywords
- yarn
- reinforcing
- fiber
- warp
- woven fabric
- 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.)
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、繊維強化複合材料
に用いられる補強織物基材に関するものである。さらに
詳しくは、コンクリ−ト構造体等を炭素繊維強化プラス
チックで補強する際、取扱い性、および表面平滑性に優
れ、高い補強効果を発揮する補強織物に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforced textile substrate used for a fiber-reinforced composite material. More specifically, the present invention relates to a reinforced fabric which is excellent in handleability and surface smoothness when reinforcing a concrete structure or the like with carbon fiber reinforced plastic and exhibits a high reinforcing effect.
【０００２】[0002]
【従来の技術】繊維強化複合材料の補強基材としては、
ガラス繊維、炭素繊維などの無機繊維や、アラミド繊
維、高強度ポリエチレン繊維などの有機繊維などの高強
度、高弾性率繊維からなる織物が多用されている。2. Description of the Related Art As a reinforcing base material of a fiber reinforced composite material,
Fabrics made of high-strength, high-modulus fibers such as inorganic fibers such as glass fibers and carbon fibers, and organic fibers such as aramid fibers and high-strength polyethylene fibers are frequently used.
【０００３】一般に補強繊維からなる繊維強化プラスチ
ックは、異方性が大きく、補強繊維が配向した方向には
高い引張り強度、弾性率を発揮するが、繊維に直角の方
向に対してはほとんど樹脂の強度しか発揮しない欠点が
ある。半面、必要な方向に補強繊維を多く配向させるこ
とによって有効な補強ができるメリットがある。Generally, fiber-reinforced plastics made of reinforcing fibers have large anisotropy and exhibit high tensile strength and elastic modulus in the direction in which the reinforcing fibers are oriented, but almost no resin is applied in the direction perpendicular to the fibers. There is a disadvantage that only strength is exhibited. On the other hand, there is a merit that effective reinforcement can be achieved by orienting many reinforcing fibers in a necessary direction.
【０００４】異方性を利用するためには、補強繊維をた
て方向に配列させ、よこ方向に補助糸を用いた一方向性
の織物によって効果的な補強が可能になるものである。In order to utilize anisotropy, reinforcing fibers are arranged in the warp direction, and effective reinforcement can be achieved by a unidirectional woven fabric using auxiliary yarns in the weft direction.
【０００５】この場合、よこ方向の補助糸はたて糸の配
列を保つ目的のためであり、補強には全く作用しないも
のであるあるから、軽量、かつ薄い織物にするために、
出来る限り細い糸が使用される。In this case, the auxiliary yarns in the weft direction are for the purpose of maintaining the arrangement of the warp yarns and do not act at all for reinforcement.
As thin a thread as possible is used.
【０００６】補強繊維からなるたて糸の繊度が比較的小
さく、かつたて糸の密度が大きい場合には、よこ糸との
交錯点数が多く、かつ、よこ糸によるたて糸への拘束力
も増大するために織物自体に剛性があり、取り扱い性の
優れた織物となる。When the warp yarn composed of reinforcing fibers has a relatively small fineness and a high warp yarn density, the number of intersections with the weft yarn is large, and the binding force of the warp yarn on the warp yarn is increased. And a woven fabric with excellent handleability.
【０００７】しかしながら、その様に補強繊維からなる
たて糸の密度が大きく、非常に目の詰まった織物に樹脂
を塗布し、複合材料に成形しようとしても、樹脂が含浸
し難く、ボイドの多い複合材料となってしまう。However, even if the warp yarn made of the reinforcing fibers has such a high density that a resin is applied to a very dense woven fabric to form a composite material, the resin is hardly impregnated with the resin and the composite material has many voids. Will be.
【０００８】特に、補強織物をコンクリート面に貼り付
けて補強する際には、樹脂の垂れ落ちや、織物基材のず
れ落ちを防ぐために高粘度樹脂が使用されるため一層樹
脂の含浸がし難くなる問題がある。In particular, when a reinforcing fabric is stuck on a concrete surface to reinforce it, a high-viscosity resin is used to prevent dripping of the resin and slippage of the fabric base material, so that the resin is more difficult to be impregnated. There is a problem.
【０００９】さらに、織物基材を貼り付けるために下地
に高粘度樹脂を塗布した後、その上から目の詰まった織
物基材を貼り付けた際、織物基材の厚み方向に樹脂が抜
け難いため、貼り付け面と織物基材の間に樹脂が溜ま
り、その樹脂層の厚み斑によって貼り付け後の表面が凸
凹し、見栄えが悪い成形面となる問題がある。Furthermore, when a high-viscosity resin is applied to a base for attaching a fabric base material, and when a woven fabric base material with a clogged appearance is affixed from above, the resin hardly comes off in the thickness direction of the fabric base material. Therefore, there is a problem that the resin accumulates between the application surface and the textile substrate, and the surface after application becomes uneven due to uneven thickness of the resin layer, resulting in a molded surface having poor appearance.
【００１０】一方、粘度の低い樹脂であっても貼り付け
面と貼り付けた織物基材間の樹脂が織物基材表面に抜け
難く、その樹脂が貼り付け面と織物基材間を下方に流れ
だして一カ所に溜り、その箇所に膨れが生じる問題があ
る。On the other hand, even if the resin has a low viscosity, it is difficult for the resin between the attaching surface and the attached textile substrate to escape to the surface of the textile substrate, and the resin flows downward between the attaching surface and the textile substrate. However, there is a problem that the fluid accumulates at one location and swells at that location.
【００１１】そのような問題に対して、補強繊維からな
るたて糸の密度粗くし、たて糸間に充分な隙間を設け、
その隙間から樹脂が容易に表面に抜けるようにしておく
ことが考えられる。[0011] In order to solve such a problem, the density of the warp yarns made of reinforcing fibers is made coarse, and a sufficient gap is provided between the warp yarns.
It is conceivable to allow the resin to easily escape from the gap to the surface.
【００１２】しかし、たて糸の密度を粗くすると、たて
糸とよこ糸補助糸の交錯点数が少なく、かつ、たて糸と
よこ糸の拘束力が低くなるために、たて糸とよこ糸が交
錯部で容易にずれ易く寸法安定性の悪い織物となる。However, when the density of the warp yarns is reduced, the number of intersection points between the warp yarns and the auxiliary weft yarns is reduced and the binding force between the warp yarns and the weft yarns is reduced. It becomes a poorly woven fabric.
【００１３】その様な寸法安定性の低い織物基材を積層
して成形しようとすると、積層の際に手で持ち上げたり
すると、織物の重みによって大きく曲がり、補強繊維を
真っ直ぐに配列した状態で積層するのが非常に難しい問
題がある。When fabrics having such low dimensional stability are laminated and molded, if they are lifted up by hand at the time of lamination, they are largely bent by the weight of the fabric and laminated in a state where reinforcing fibers are arranged in a straight line. There is a very difficult problem to do.
【００１４】特に、コンクリート垂直面など大きな面積
を一方向性の補強織物で補強しようとした際、樹脂をコ
ンクリート面に塗布した後、その上から剛性のない織物
を貼り付けようとすると、皺が生じた状態で貼り付けら
れ、一旦樹脂が付着した状態ではさらに扱い難く、皺を
なくするのに非常に時間が掛かり、完全に除去すること
は不可能である。In particular, when a large area such as a vertical surface of concrete is to be reinforced by a unidirectional reinforcing fabric, a resin is applied to the concrete surface, and then, if a non-rigid fabric is applied thereto, wrinkles are formed. Once affixed, it is awkward to handle once it has been adhered to the resin, it takes a very long time to eliminate wrinkles, and it is impossible to completely remove it.
【００１５】上記問題点を改善するために、特開平8-15
6152で織物にシート材を貼り付けた補強織物基材が提案
されている。In order to improve the above problem, Japanese Patent Laid-Open No.
6152 proposes a reinforced woven fabric substrate in which a sheet material is attached to a woven fabric.
【００１６】同補強織物基材は、織物面に変形し難い紙
等が予め貼り付けてあるため、貼り付け時に皺が生じる
ことなく貼り付けることが可能であるが、予め貼り付け
る工程が必要であるし、補強織物基材を貼り付け後、シ
ート材を剥がす必要があるために弱い接着としており、
取り扱い時に剥がれ易い問題がある。The reinforcing woven fabric substrate can be stuck without wrinkles at the time of sticking since a paper or the like which is not easily deformed is stuck on the woven fabric surface in advance, but a step of sticking in advance is necessary. Also, after attaching the reinforcing fabric base, it is necessary to peel off the sheet material, so it has weak adhesion,
There is a problem that it is easily peeled off during handling.
【００１７】この様に、従来、繊維強化プラスチック用
基材として、寸法安定性に優れ、かつ樹脂含浸性の良好
な一方向性補強織物は無かった。As described above, there has hitherto not been a unidirectional reinforcing fabric having excellent dimensional stability and good resin impregnation as a substrate for a fiber-reinforced plastic.
【００１８】[0018]
【 発明が解決しようとする課題】本発明の課題は、特
に、寸法安定性、取り扱い性に優れ、繊維強化プラスチ
ックに成形する際に樹脂の含浸性が良好で、皺や膨れを
生じさせることなく出来、表面平滑成形を行える一方向
性補強織物を提供することにある。The object of the present invention is to provide, in particular, excellent dimensional stability and handleability, good resin impregnation when molding into fiber-reinforced plastic, and without wrinkling or swelling. It is an object of the present invention to provide a unidirectional reinforcing fabric that can be formed and that can perform surface smooth molding.
【００１９】[0019]
【 課題を解決するための手段】上記課題を解決するた
めに、本発明は、基本的には下記の構成を有する。即
ち、「たて方向に複数本の補強繊維糸条が並行に配列
し、よこ方向に補助糸が配列してなる織物において、 Ａ．補助糸の曲げ剛性指数（繊維の引張り弾性率×（単
繊維の直径）4 ×フィラメント数）が５×１０-3〜２０
０×１０-3Ｋｇｆ・ｍｍ2であり、 Ｂ．たて方向の補強繊維糸条とよこ方向補助糸の引張り
剛性（繊維の引張り弾性率×単位幅当たり繊維断面積）
の比が３〜１００であることを特徴とする一方向性補強
織物」である。[MEANS FOR SOLVING THE PROBLEMS] In order to solve the above problems, the present invention basically has the following configuration. That is, "a woven fabric in which a plurality of reinforcing fiber yarns are arranged in parallel in the warp direction and auxiliary yarns are arranged in the weft direction, A. Bending stiffness index of auxiliary yarn (tensile elastic modulus of fiber x (single Fiber diameter) 4 × number of filaments) is 5 × 10 -3 to 20
0 × 10 −3 Kgf · mm 2 ; Tensile rigidity of warp direction reinforcing fiber yarn and weft direction auxiliary yarn (tensile elastic modulus of fiber x fiber cross-sectional area per unit width)
Is a unidirectional reinforcing fabric having a ratio of 3 to 100. "
【００２０】[0020]
【発明の実施の形態】補強繊維には、ガラス繊維やアラ
ミド繊維、炭素繊維など高強度、高弾性率である繊維が
好ましく、特にフィラメント数が6,000 〜30,000本から
なる太い炭素繊維であることが好適である。又、単繊維
の直径は５〜１０μｍが好ましい。BEST MODE FOR CARRYING OUT THE INVENTION Fibers having high strength and high elastic modulus such as glass fiber, aramid fiber, and carbon fiber are preferable as the reinforcing fiber, and in particular, a thick carbon fiber having 6,000 to 30,000 filaments is preferable. It is suitable. The diameter of the single fiber is preferably 5 to 10 μm.
【００２１】より好ましくはフィラメント数が12,000〜
24,000本からなる炭素繊維である。More preferably, the number of filaments is 12,000 to
It is a carbon fiber consisting of 24,000 fibers.
【００２２】炭素繊維は、補強繊維の中でも高強度、高
弾性率であり、高い補強効果が得られる点から最も好ま
しく、なかでも、引っ張り強度が300kgf/mm2以上、引っ
張り弾性率が20,000kgf/mm2以上の炭素繊維であること
が好ましい。Carbon fiber is the most preferable among the reinforcing fibers because it has a high strength and a high elastic modulus and a high reinforcing effect can be obtained. Among them, the tensile strength is 300 kgf / mm 2 or more and the tensile elastic modulus is 20,000 kgf / mm 2. It is preferable that the carbon fiber is mm 2 or more.
【００２３】本発明は、たて糸として通常用いられる補
強繊維糸より太い繊維糸を用い、かつ、補強繊維糸条間
に0.2〜2.0mmの隙間を設けたのも特徴である。The present invention is also characterized in that a fiber yarn thicker than a reinforcing fiber yarn generally used as a warp yarn is used, and a gap of 0.2 to 2.0 mm is provided between the reinforcing fiber yarns.
【００２４】織物目付が同一の場合、たて糸を太くする
ことによってたて糸の間隔が大きくすることが出来、し
かもたて糸の断面形状をほぼ円形状まで集束させること
が出来るので、織物の厚さは大きくなるもののたて糸間
に隙間が設け易いことになる。When the fabric weight is the same, the warp yarns can be thickened to increase the interval between the warp yarns, and the cross-sectional shape of the warp yarns can be focused to a substantially circular shape, so that the thickness of the fabric increases. It is easy to provide a gap between the warp yarns.
【００２５】たて糸を太い補強繊維糸とした一方向織物
においては、製織後は綜絖のメールによってたて糸断面
がほぼ円形状に集束させられるので、たて糸間に隙間を
有した状態で織られるが、よこ方向の補助糸は細くて、
曲げ剛性の小さい糸が用いられているので、たて糸の幅
方向への拡がりに対する規制力が殆ど作用しないため、
巻き取りローラのニップ圧によってたて糸は幅方向に拡
がり、たて糸間の隙間が殆どなくなってしまう。In a one-way woven fabric in which the warp yarns are thick reinforcing fiber yarns, after weaving, the warp yarn cross section is bundled into a substantially circular shape by the heald mail, so that the warp yarn is woven with a gap between the warp yarns. The auxiliary yarn in the direction is thin,
Since the yarn with low bending rigidity is used, the regulating force for the spreading of the warp yarn in the width direction hardly acts.
The warp yarn spreads in the width direction due to the nip pressure of the take-up roller, and the gap between the warp yarns is almost eliminated.
【００２６】そこで、本発明においては、曲げ剛性の高
いよこ方向補助糸を用いることによりたて糸の幅方向の
拡がりを抑制し、積極的にたて糸間に隙間を設けるよう
にしたものである。Therefore, in the present invention, the use of a weft-direction auxiliary yarn having a high bending rigidity suppresses the warp yarn from spreading in the width direction and actively provides a gap between the warp yarns.
【００２７】よこ方向の補助糸に300〜1,500デニールの
太い糸を用いることにより、上記したように織物面にお
いて、たて糸間に隙間を設けることができるばかりか、
よこ方向補助糸の方向にも隙間を設けることが出来る。By using a thick yarn of 300 to 1,500 denier for the auxiliary yarn in the weft direction, not only can a gap be provided between the warp yarns on the fabric surface as described above,
A gap can also be provided in the direction of the weft direction auxiliary yarn.
【００２８】図３はたて糸とよこ糸の交錯部の斜視図
で、本発明でいうたて糸間の隙間は織物を正面から見た
際の隙間（Ｂ）を指すが、たて糸はよこ糸と互いに交錯
しているので、その交錯部においては、よこ糸にほぼ平
行な方向によこ糸の厚み分の隙間（Ａ）ができる訳であ
るから、よこ糸を太くすることにより、樹脂や抱き込み
空気を抜くに充分な大きな隙間（Ａ）が確実に得られ
る。FIG. 3 is a perspective view of an intersecting portion of the warp yarn and the weft yarn. In the present invention, the gap between the warp yarns indicates the gap (B) when the woven fabric is viewed from the front, but the warp yarn intersects with the weft yarn. In the intersecting portion, a gap (A) corresponding to the thickness of the weft thread is formed in a direction substantially parallel to the weft thread. Therefore, by making the weft thread thick, the resin and the embracing air are sufficiently large. The gap (A) is reliably obtained.
【００２９】織物基材の厚み方向に貫通したその様な隙
間を設けることにより、その隙間が樹脂や抱き込み空気
の通り道となり、樹脂含浸を容易するものである。By providing such a gap penetrating in the thickness direction of the woven fabric substrate, the gap serves as a passage for the resin and the embracing air, thereby facilitating resin impregnation.
【００３０】さらに詳しくは、例えば、コンクリート構
造体の補強面に樹脂を塗布し、その上から織物基材を貼
り付けて含浸ローラ掛けをする際、通常の織物基材では
コンクリート面と織物基材間の樹脂はコンクリート面と
織物基材間で移動するだけで、含浸ローラ掛けを止めた
ところに樹脂が溜まり、その箇所が膨れる問題がある。More specifically, for example, when a resin is applied to a reinforcing surface of a concrete structure, and a woven fabric substrate is stuck thereon and then impregnated with a resin, a normal woven fabric substrate is used to lay a concrete surface and a woven fabric substrate. The resin in between moves only between the concrete surface and the woven fabric substrate, and there is a problem that the resin accumulates at the place where the impregnating roller is stopped, and that portion swells.
【００３１】たて糸間に隙間を設けておくと、その隙間
から樹脂が織物基材表面に抜け、コンクリート面と織物
基材間の樹脂は薄く、かつ、均一となり、貼り付け後に
膨れが生じることがない。If a gap is provided between the warp yarns, the resin escapes from the gap to the surface of the woven fabric substrate, the resin between the concrete surface and the woven fabric substrate becomes thin and uniform, and swelling may occur after pasting. Absent.
【００３２】さらに、貼り付け面に樹脂を塗布した後に
織物基材を貼り付ける際、空気を抱き込むが、たて糸間
に隙間を設けておくと、その隙間から抜くことが出来、
抱き込み空気よる大きな空洞が生じることなく信頼性の
高い補強を行うことが出来るものである。Further, air is embraced when the woven fabric substrate is applied after the resin is applied to the application surface, but if a space is provided between the warp yarns, the air can be removed from the space.
Reliable reinforcement can be performed without generating large cavities due to entrapped air.
【００３３】また、たて糸を太くし密度を粗くすると、
たて糸とよこ糸の交錯点数が少なくなるから、当然拘束
力が低下し、剛性のない織物になるが、曲げ剛性の高い
よこ方向の補助糸を使用することにより、たて糸はよこ
糸によって交錯点部で強固に拘束されると同時に、よこ
方向補助糸自身の高い曲げ剛性によって織物の幅方向の
曲げ剛性が増大するので、織物全体として剛性のある織
物となる。When the warp yarn is made thicker and the density is made coarser,
Since the number of intersection points between the warp and the weft is reduced, the binding force is naturally reduced and the woven fabric has no rigidity.However, by using the auxiliary yarn having a high bending rigidity in the weft direction, the warp is strengthened at the intersection by the weft. At the same time, the bending stiffness in the width direction of the woven fabric is increased by the high bending stiffness of the weft direction auxiliary yarn itself, so that the woven fabric as a whole is a stiff woven fabric.
【００３４】よこ方向の補助糸としては、ガラス繊維や
アラミド繊維、炭素繊維などの高い曲げ剛性を有した繊
維が好ましく、中でもコストの安価なガラス繊維糸が好
適である。As the weft-direction auxiliary yarn, a fiber having high bending rigidity such as glass fiber, aramid fiber, or carbon fiber is preferable, and a glass fiber yarn having a low cost is particularly preferable.
【００３５】この様に、よこ方向の補助糸に高い曲げ剛
性を有した繊維を使用することにより、たて糸の密度が
粗くても、たて方向の補強繊維糸に対して高い拘束力
と、よこ方向の補助糸自身の高い剛性により織物基材自
体に剛性が付与され、貼り付け作業での皺発生を防ぐこ
とが出来、貼り付け作業が容易となる。As described above, by using a fiber having high bending rigidity for the auxiliary yarn in the weft direction, even if the density of the warp yarn is low, a high binding force to the reinforcing fiber yarn in the warp direction and a high weft force can be obtained. The high rigidity of the auxiliary yarn in the direction itself imparts rigidity to the woven fabric substrate itself, which can prevent wrinkles from occurring in the attaching operation, and facilitates the attaching operation.
【００３６】また、通常、貼り付け面に樹脂を均一に塗
布することは難しく、塗布斑が大きい状態での上に従来
の剛性のない柔らかい織物基材を貼り付けた際、織物基
材は貼り付け面の樹脂の厚み斑に沿って凸凹した状態で
貼り付けられることになるが、本発明の織物基材であれ
ば、織物自身の剛性によって樹脂の多い部分を均一に押
し拡げ、樹脂の層を均一して織物基材表面が凸凹するよ
うなことがない。Also, it is usually difficult to uniformly apply the resin to the application surface, and when a conventional soft non-rigid textile base material is applied on a state where the coating unevenness is large, the textile base material is stuck. The woven fabric substrate of the present invention uniformly spreads a resin-rich portion by the stiffness of the woven fabric itself, and the resin layer is applied to the woven fabric substrate. And the surface of the woven fabric substrate is not uneven.
【００３７】さらに、従来の織物基材と高粘度樹脂を用
いた場合には、補強繊維糸束の周りに樹脂が覆い、糸束
内の空気を閉じ込めて補強繊維糸束方向に連続した未含
浸部（ボイド）が生じる。Further, when a conventional textile base material and a high-viscosity resin are used, the resin covers around the reinforcing fiber yarn bundle, traps the air in the yarn bundle, and continues unimpregnated in the reinforcing fiber yarn bundle direction. Parts (voids) occur.
【００３８】そして、暫く時間が経過すると補強繊維束
が元の厚みに戻ろうとする力によって前記未含浸部が膨
れ、補強繊維方向に沿って繊維束中央部が大きな空洞と
なる問題がある。 その様な問題に対して、よこ方向の
補強繊維に剛性を付与させることによって、補強繊維束
は剛性のあるよこ方向の補助糸と交錯し、補強繊維束を
強固に押さえているので前記した繊維束中央部が大きな
空洞となることを防止する作用がある。After a while, there is a problem that the unimpregnated portion expands due to the force of the reinforcing fiber bundle to return to the original thickness, and the central portion of the fiber bundle becomes a large cavity along the reinforcing fiber direction. In order to solve such a problem, the reinforcing fiber bundle is provided with rigidity in the weft-direction reinforcing fiber, so that the reinforcing fiber bundle intersects with the rigid weft-direction auxiliary yarn, and the reinforcing fiber bundle is strongly held. This has the effect of preventing the central portion of the bundle from becoming a large cavity.
【００３９】よこ方向の補助糸の曲げ剛性指数は、繊維
の引張り弾性率×（単繊維の直径）4 ×フィラメント数
で５×１０-3〜２００×１０-3Ｋｇｆ・ｍｍ2 が好まし
く、中でも２０×１０-3〜１００×１０-3Ｋｇｆ・ｍｍ
2 がより好ましい範囲である。ここで、短繊維の直径な
らびにフィラメント数は、糸を樹脂で固め、断面の拡大
写真から平均直径ならびにフィラメント数を読みとった
ものである。The bending stiffness index of the auxiliary yarn in the weft direction is preferably 5 × 10 −3 to 200 × 10 −3 Kgf · mm 2 in terms of the tensile modulus of the fiber × (diameter of a single fiber) 4 × the number of filaments. 20 × 10 -3 to 100 × 10 -3 Kgf · mm
2 is a more preferred range. Here, the diameter of the short fiber and the number of filaments are obtained by reading the average diameter and the number of filaments from an enlarged photograph of the cross section of the yarn solidified with a resin.
【００４０】たて方向の補強繊維が太く、かつ、補強繊
維間に隙間が設けられる粗い密度の場合に、前記曲げ剛
性指数で、５×１０-3Ｋｇｆ・ｍｍ2以下であると、た
て方向の補強繊維に対しての拘束力が作用しないばかり
か、よこ方向の補助糸自身の曲げ剛性が小さいために織
物の形態保持性がなく、しかも剛性の小さい織物とな
り、貼り付け時に皺が生じたり、貼り付け面に塗布され
た樹脂の厚み斑や樹脂の流れの影響を受けて成形後の表
面が凸凹する問題がある。In the case where the reinforcing fibers in the vertical direction are thick and have a coarse density in which a gap is provided between the reinforcing fibers, if the bending stiffness index is 5 × 10 −3 Kgf · mm 2 or less, the vertical direction is determined. Not only does the restraining force not act on the reinforcing fibers in the horizontal direction, but the auxiliary yarn itself in the horizontal direction has low bending stiffness, so there is no form retention of the woven fabric. Also, there is a problem that the surface after molding is uneven due to the influence of unevenness in thickness of the resin applied to the application surface or the flow of the resin.
【００４１】一方、前記よこ方向の補助糸の曲げ剛性指
数が２００×１０-3Ｋｇｆ・ｍｍ2以上となると、非常
に剛性の高い織物となるが、たて方向の補強繊維糸にク
リンプが生じ、補強繊維の有する高い強度特性が発揮さ
れない問題がある。On the other hand, if the bending stiffness index of the auxiliary yarn in the weft direction is 200 × 10 −3 Kgf · mm 2 or more, a very rigid fabric is obtained, but crimps are formed in the reinforcing fiber yarn in the warp direction. However, there is a problem that the high strength characteristics of the reinforcing fiber cannot be exhibited.
【００４２】よこ方向補助糸が樹脂で固められた糸を用
いる場合には、（補助糸の引張り弾性率×固められた補
助糸の直径の４乗）で計算された値を曲げ剛性とする。When the weft direction auxiliary yarn is a yarn hardened with a resin, the value calculated by (tensile elastic modulus of the auxiliary yarn × the fourth power of the diameter of the hardened auxiliary yarn) is defined as bending rigidity.
【００４３】補助糸には撚が掛かっていてもよく、無撚
であってもよい。特に複合材料の表面平滑が要求される
場合には、無撚が好ましい。The auxiliary yarn may be twisted or non-twisted. In particular, when the surface of the composite material is required to be smooth, non-twist is preferable.
【００４４】また、たて方向の補強繊維糸条とよこ方向
補助糸の引張り剛性（繊維の引張り弾性率×単位幅当た
り繊維断面積）の比が３〜１００であることが好まし
く、中でも２０〜７０がより好ましい。ここでいう比
は、（たて方向の補強繊維糸条の引っ張り剛性）／（よ
こ方向の補助糸の引っ張り剛性）をいう。The ratio of the tensile stiffness (tensile elastic modulus of fiber × fiber cross-sectional area per unit width) of the warp reinforcing yarn and the weft direction auxiliary yarn is preferably 3 to 100, and more preferably 20 to 70. Is more preferred. The ratio here means (tensile rigidity of the reinforcing fiber yarn in the warp direction) / (tensile rigidity of the auxiliary yarn in the weft direction).
【００４５】すなわち、本発明の目的を達成するために
は、よこ方向の補助糸の引張り剛性は、たて方向の補強
繊維糸条が引張り剛性によって変える必要があることで
ある。That is, in order to achieve the object of the present invention, the tensile stiffness of the auxiliary yarn in the weft direction needs to be changed by the tensile stiffness of the reinforcing fiber yarn in the warp direction.
【００４６】前記、たて方向の補強繊維糸条とよこ方向
補助糸の引張り剛性（繊維の引張り弾性率×単位幅当た
り繊維断面積）の比が３以下であると、よこ方向の補助
糸の引張り剛性がたて方向補強繊維糸の剛性に対して大
きくなり、たて方向の補強繊維糸にクリンプを生じさせ
るため、補強繊維糸の有する強度特性が十分に発揮され
ない問題がある。When the ratio of the tensile stiffness (tensile modulus of elasticity of fiber × fiber cross-sectional area per unit width) of the warp reinforcing yarn and the weft assist yarn is 3 or less, the weft assist yarn is pulled. Since the rigidity of the warp-direction reinforcing fiber yarn is increased relative to the rigidity of the warp-direction reinforcing fiber yarn, and the warp-direction reinforcing fiber yarn is crimped, the strength characteristics of the reinforcing fiber yarn cannot be sufficiently exhibited.
【００４７】一方、前記比が１００以上となると、よこ
方向の補助糸の引張り剛性がたて方向補強繊維糸の引張
り剛性に対して余りにも小さくなり過ぎ、織物に剛性を
付与させることができないばかりか、たて方向補強繊維
糸間に隙間を設けることが出来ず、基材貼り付け面と織
物基材間の樹脂や、抱き込み空気を織物厚み方向に抜く
ことが出来ず、膨れが生じる問題がある。On the other hand, when the ratio is 100 or more, the tensile stiffness of the weft-direction auxiliary yarn becomes too small with respect to the tensile stiffness of the warp-reinforcing fiber yarn, so that the woven fabric cannot be given rigidity. In other words, a gap cannot be provided between the warp-direction reinforcing fiber yarns, and the resin between the base material attaching surface and the woven base material or the embracing air cannot be released in the woven fabric thickness direction, thereby causing swelling. There is.
【００４８】本発明におけるたて方向の補強繊維糸の密
度は、たて糸間に十分な隙間を設け易くする点から、１
〜５本／cmと粗い密度が好ましく、中でも２〜４本／cm
がより好ましい範囲で、織物中における補強繊維糸の目
付は１５０〜６００ｇ／ｍ2でが好適である。In the present invention, the density of the reinforcing fiber yarns in the warp direction is set at 1 point in order to easily provide a sufficient gap between the warp yarns.
A coarse density of ~ 5 lines / cm is preferred, of which 2-4 lines / cm
Is more preferable, and the basis weight of the reinforcing fiber yarn in the woven fabric is preferably 150 to 600 g / m 2 .
【００４９】また、よこ方向の補助糸の密度の好ましい
範囲は、0.5〜5本／cmで、より好ましくは２〜３本／cm
である。The preferred range of the density of the auxiliary yarn in the weft direction is 0.5 to 5 yarns / cm, more preferably 2 to 3 yarns / cm.
It is.
【００５０】すなわち、よこ糸の密度が0.5本／cm以下
では、たて糸とよこ糸の交錯点数が余りにも少なくなる
ために、たて糸とよこ糸を拘束力が小さくなるし、織物
の単位面積当たりのよこ糸量が少なくなるので織物自身
の剛性が不足する問題がある。That is, when the density of the weft yarn is 0.5 yarn / cm or less, the number of intersections between the warp yarn and the weft yarn becomes too small, so that the binding force between the warp yarn and the weft yarn becomes small, and the amount of the weft yarn per unit area of the woven fabric is reduced. There is a problem that the rigidity of the woven fabric itself is insufficient because the number of the woven fabrics decreases.
【００５１】また、たて糸の補強繊維糸束の糸幅はよこ
糸との交錯部では規制され、たて糸間に隙間を設けるこ
とができるが、よこ糸とよこ糸間が大きくなると、その
間でたて糸幅が拡がるため、たて糸間に充分な隙間を設
けることが出来ない問題がある。Further, the yarn width of the warp reinforcing fiber yarn bundle is regulated at the intersection with the weft yarn, and a gap can be provided between the warp yarns. However, when the space between the weft yarns is increased, the warp yarn width is increased between them. There is a problem that a sufficient gap cannot be provided between the warp yarns.
【００５２】一方、よこ糸密度が5本／cm以上となる
と、非常に剛性の高い織物となるが、よこ糸の使用量が
増え、材料費が高くなる問題があるし、さらに拘束が強
くなるためにたて糸の補強繊維糸がクリンプし、補強繊
維の高強度が充分に発揮させることができない。On the other hand, when the weft yarn density is 5 yarns / cm or more, a very stiff fabric is obtained. However, there is a problem that the use amount of the weft yarn increases and the material cost increases. The reinforcing fiber yarn of the warp crimps, and the high strength of the reinforcing fiber cannot be sufficiently exhibited.
【００５３】たて糸間に設ける隙間は0.2〜2.0mmの範囲
が好適である。The space provided between the warp yarns is preferably in the range of 0.2 to 2.0 mm.
【００５４】隙間が0.2mm以下では、特に高粘度樹脂と
なるとその隙間から樹脂が抜け難い問題があり、また、
隙間が2.0mm以上となると、樹脂は抜け易くなるもの
の、隙間を設けた分たて糸部分の厚みが増して織物表面
が凸凹するし、補強繊維糸が強固に集束されるため樹脂
の含浸性が低下する問題がある。If the gap is 0.2 mm or less, there is a problem that the resin is hard to come out of the gap particularly when the resin is made of a high-viscosity resin.
When the gap is 2.0 mm or more, the resin is easy to come out, but the thickness of the warp yarn part with the gap increases, the fabric surface becomes uneven, and the impregnating property of the resin decreases because the reinforcing fiber yarns are firmly bundled There is a problem to do.
【００５５】樹脂の含浸性は、ＪＩＳ Ｌ １０９６法に
よるシート通気量と密接な関係があり、前記通気量で40
〜300CC／cm2／secであることが好ましいことがわかっ
た。The resin impregnating property is closely related to the sheet air permeability according to the JIS L 1096 method.
It was found that it was preferable to be ~ 300 CC / cm 2 / sec.
【００５６】通気量がの40CC／cm2／sec未満であると、
補強繊維糸条を形成する炭素繊維の嵩密度が小さくな
り、すなわち、炭素繊維同志が形成する空間が小さく、
また補強繊維糸条間の隙間が小さくて、樹脂の含浸性が
悪く、ボイドを発生させる。If the ventilation rate is less than 40 CC / cm 2 / sec,
The bulk density of the carbon fibers forming the reinforcing fiber yarn is reduced, that is, the space formed between the carbon fibers is small,
Further, the gap between the reinforcing fiber yarns is small, the impregnation property of the resin is poor, and voids are generated.
【００５７】また、300CC／cm2／secでは、補強繊維糸
間の隙間が大きい織物であるため、補強繊維部の厚みが
増大して表面が凸凹し、また、補強繊維糸が強固に集束
されるために補強繊維糸条内への樹脂の含浸性が低下す
る問題がある。Further, at 300 CC / cm 2 / sec, since the woven fabric has a large gap between the reinforcing fiber yarns, the thickness of the reinforcing fiber portion increases, the surface becomes uneven, and the reinforcing fiber yarns are firmly bundled. Therefore, there is a problem that the impregnating property of the resin into the reinforcing fiber yarn is reduced.
【００５８】通気量の測定は、ＪＩＳ Ｌ １０９６法
６．２７項の通気性Ａ法に従った。The measurement of the air permeability was in accordance with the air permeability method A of JIS L 1096 method 6.27.
【００５９】すなわち、円筒の一端が３８．３cm2 通
気孔に２０cm×２０cmのシート試験片を所定の方法で取
り付け、加減抵抗器によって傾斜形気圧計が水柱１．２
７cmの圧力を示すように吸い込みファンを調整し、その
時の垂直形気圧計の示す圧力と、使用した空気孔の種類
とから、試験機付随の換算表によってシート試験片を通
過する空気量（CC／cm2／sec）を求め５回の測定結果の
平均値を通気量とした。That is, a 20 cm × 20 cm sheet test piece was attached to a 38.3 cm 2 vent hole at one end of the cylinder by a predetermined method, and a tilt type barometer was attached to a water column 1.2 by a rheostat.
The suction fan was adjusted to indicate a pressure of 7 cm, and the amount of air passing through the sheet test piece (CC) was calculated from the pressure indicated by the vertical barometer at that time and the type of air hole used, according to a conversion table attached to the tester. / Cm 2 / sec) was determined and the average value of the five measurement results was taken as the ventilation rate.
【００６０】なお、温度が２０℃、湿度が６５％の室内
に試料を２４時間放置した後、その雰囲気下で測定し
た。なお、後述する実施例では、通気量測定器として、
（株）大栄科学精器製作所のフラジール形試験機ＡＰ−
３６０を使用した。The sample was left in a room at a temperature of 20 ° C. and a humidity of 65% for 24 hours, and then measured in that atmosphere. In the examples described below, as a ventilation meter,
Fragile type testing machine AP- of Daiei Kagaku Seiki Seisakusho Co., Ltd.
360 was used.
【００６１】本発明の織物組織は、たて糸およびよこ糸
の密度が粗いものであるから、交錯点数の多い平織構
造、または、たて方向の補強繊維糸条と並行で、かつた
て方向の補強繊維糸条と１本交互にたて方向の補助糸が
配列し、よこ方向の補助糸が前記補強繊維糸条とたて方
向の補助糸とで平織組織をなしたノンクリンプ構造が好
ましいものである。Since the fabric structure of the present invention has a coarse warp and weft density, it has a plain weave structure having a large number of intersecting points or a reinforcing fiber parallel to the warp direction and the warp direction. A non-crimp structure in which yarns and auxiliary yarns in the warp direction are arranged alternately, and the auxiliary yarns in the weft direction form a plain weave structure with the reinforcing fiber yarns and the auxiliary yarns in the warp direction is preferable.
【００６２】ここでいうノンクリンプ構造とは、たて糸
方向の補強繊維糸条が曲がる（クリンプ）ことなく実質
上真っ直ぐに配向した織物構造である。The non-crimp structure referred to here is a woven structure in which the reinforcing fiber yarns in the warp direction are oriented substantially straight without bending (crimp).
【００６３】さらに、よこ方向の補助糸に沿って目どめ
剤を線状に配置させ、たて方向の補強繊維糸とよこ方向
の補助糸の交点を接着させておくことにより、織物の剪
断方向の変形に対して抗力を発揮し、一層形態保持性の
高い織物になるし、取扱い時に繊維配向が乱れたりする
ことがないので好ましいものである。Further, the stimulating agent is linearly arranged along the weft-direction auxiliary yarn, and the intersection of the warp-direction reinforcing fiber yarn and the weft-direction auxiliary yarn is adhered, so that the shearing direction of the woven fabric is reduced. This is preferable because it exhibits resistance to the deformation of the woven fabric, makes the woven fabric more form-retaining, and does not disturb the fiber orientation during handling.
【００６４】目どめ剤は、よこ方向補助糸の周りに螺旋
状に配置させてもよい。The sighting agent may be helically disposed around the weft direction auxiliary yarn.
【００６５】目どめ剤としては、共重合ナイロン、共重
合ポリエステル、ポリエチレンなどの低融点ポリマ−が
好ましい。As the stimulating agent, low melting point polymers such as copolymerized nylon, copolymerized polyester and polyethylene are preferred.
【００６６】目どめ剤の配置方法は、織物を製造する
際、よこ方向補助糸の供給時に低融点ポリマ−糸を引き
揃えて供給させるか、予めよこ方向補助糸の周り低融点
ポリマ−糸をカバ−リングして供給させて織物を製造
し、織機上または別ラインで加熱して低融点ポリマ−糸
を溶融させることにより達成でき、たて糸とよこ糸の交
点を接着させることが出来る。The method of arranging the blinding agent is as follows. When manufacturing the woven fabric, the low-melting polymer yarn is supplied in parallel when the weft-direction auxiliary yarn is supplied, or the low-melting polymer yarn is wrapped around the weft-direction auxiliary yarn in advance. Is covered and supplied to produce a woven fabric, which is heated on a loom or on a separate line to melt the low-melting polymer yarn, so that the intersection of the warp and weft yarns can be bonded.
【００６７】本発明の一方向性補強織物は構造物の補修
または補強に好適に用いることができる。かかる構造物
としては、橋梁、柱、トンネルなど特に限定されるもの
ではない。又その材質もコンクリート、金属、石質材、
プラスチック、木材等特に限定されるものではないが、
コンクリートがもっとも好適であり、以下、コンクリー
ト構造物を例に挙げ本発明を説明する。The unidirectional reinforcing fabric of the present invention can be suitably used for repairing or reinforcing structures. Such structures are not particularly limited, such as bridges, pillars, and tunnels. The material is concrete, metal, stone,
Although not particularly limited, such as plastic and wood,
Concrete is most preferable, and the present invention will be described below by taking a concrete structure as an example.
【００６８】本発明には、コンクリート構造物の補修・
補強したい部位に、樹脂を塗布し、その上から上記した
一方向性補強織物を貼り付け、含浸ローラで樹脂含浸さ
せて補強する方法も含まれる。The present invention provides a method for repairing concrete structures.
A method is also included in which a resin is applied to a portion to be reinforced, the above-described unidirectional reinforcing fabric is adhered from above, and the resin is impregnated with an impregnating roller to reinforce.
【００６９】使用する樹脂としては、エポキシ樹脂、不
飽和ポリエステル樹脂、ビニルエステル樹脂などの熱硬
化樹脂である。The resin used is a thermosetting resin such as an epoxy resin, an unsaturated polyester resin, and a vinyl ester resin.
【００７０】（本発明の実施態様）本発明の実施態様例
を図１、２にしたがって説明する。(Embodiment of the Present Invention) An embodiment of the present invention will be described with reference to FIGS.
【００７１】図１はガラス繊維糸からなるよこ方向補助
糸で、２は炭素繊維からなるたて方向の補強繊維であ
り、互いに交錯した平織組織をなしている。FIG. 1 shows a weft direction auxiliary yarn made of glass fiber yarn, and reference numeral 2 denotes a warp reinforcing fiber made of carbon fiber, which has a plain weave structure interlaced with each other.
【００７２】そして、よこ方向の補助糸の曲げ剛性指数
（繊維の引張り弾性率×（単繊維の直径）4×フィラメ
ント数）が５×１０-3 〜２００×１０-3 であり、そ
して、たて方向の補強繊維糸条とよこ方向補助糸の引張
り剛性（繊維の引張り弾性率×単位幅当たり繊維断面
積）の比が３〜１００である。The bending stiffness index (tensile modulus of fiber × (diameter of single fiber) 4 × number of filaments) of the weft-direction auxiliary yarn is 5 × 10 −3 to 200 × 10 −3 , and The ratio of the tensile rigidity (tensile modulus of elasticity of fiber × cross-sectional area of fiber per unit width) of the reinforcing fiber yarn in the weft direction and the weft direction auxiliary yarn is 3 to 100.
【００７３】また、よこ方向補助糸の周りに目どめ剤３
が螺旋状に配列され、よこ方向補助糸とたて方向の補強
繊維糸との交点で接着されている。Further, the stimulating agent 3 is provided around the weft direction auxiliary yarn.
Are spirally arranged, and are bonded at intersections of the weft direction auxiliary yarns and the warp direction reinforcing fiber yarns.
【００７４】図２は、たて方向の補強繊維糸２の間にた
て方向補助糸４を交互に配列させ、よこ方向補助糸１が
前記補強繊維糸２とたて方向補助糸４とで平織構造をな
したノンクリンプ構造組織であり、よこ方向の補助糸の
曲げ剛性、およびたて方向の補強繊維糸条とよこ方向補
助糸の引張り剛性の比は前記平織構造と同じ範囲にあ
る。FIG. 2 shows that the warp direction auxiliary yarns 1 are alternately arranged between the warp direction reinforcing fiber yarns 2, and the weft direction auxiliary yarns 1 are combined with the reinforcing fiber yarns 2 and the warp direction auxiliary yarns 4. It is a non-crimp structure having a plain weave structure, and the ratio of the bending stiffness of the weft auxiliary yarn and the ratio of the tensile stiffness of the warp direction reinforcing fiber yarn to the weft direction auxiliary yarn is in the same range as the plain weave structure.
【００７５】[0075]
（実施例１〜３、比較例１、２）本発明の効果を明確に
するために表１に示したような各条件で、図１の通りの
織組織の一方向性補強織物をそれぞれ作成し、検討を行
った結果を表１にまとめた。(Examples 1 to 3, Comparative Examples 1 and 2) In order to clarify the effects of the present invention, unidirectional reinforcing fabrics having a woven structure as shown in FIG. 1 were prepared under the respective conditions shown in Table 1. Table 1 summarizes the results of the study.
【００７６】[0076]
【表１】 ＊１：低融点共重合ナイロン100Dをヨリ数150T/mでカバ
ーリング。[Table 1] * 1: Covering low melting point copolymer 100D with a twist number of 150 T / m.
【００７７】＊２：曲げ剛性指数（繊維の引張り弾性率
×（単繊維の直径）4 ×フィラメント数）[Ｋｇｆ・ｍ
ｍ2 ] ＊３：引張り剛性（繊維の引張り弾性率×単位幅当たり
繊維断面積）の比 ＊４：織物の剛性の評価は下記の通り。* 2: Flexural rigidity index (tensile modulus of fiber × (diameter of single fiber) 4 × number of filaments) [Kgf · m
m 2 ] * 3: Ratio of tensile rigidity (tensile elastic modulus of fiber × fiber cross-sectional area per unit width) * 4: Evaluation of rigidity of woven fabric is as follows.
【００７８】◎：剛性が非常に高く、表面に皺が発生し
ない。A: Very high rigidity, no wrinkles on the surface.
【００７９】○：剛性が十分高く、表面に皺が発生しな
い。：: The rigidity is sufficiently high and no wrinkles are generated on the surface.
【００８０】×：剛性が低く、表面に皺が発生する。X: Low rigidity and wrinkles on the surface.
【００８１】表１における本発明の実施例１から３は、
織物に十分な剛性があり、皺が生じることなく貼ること
が出来、しかも樹脂がたて糸の隙間から抜け出して容易
に含浸させることが出来た。また、貼り付け時の空気抱
き込みも、たて糸の隙間から抜け、空気抱き込みによる
ボイドもなかった。Examples 1 to 3 of the present invention in Table 1
The woven fabric had sufficient rigidity and could be stuck without wrinkles. In addition, the resin could escape from the gaps between the warp yarns and be easily impregnated. In addition, the air embedment at the time of sticking was also released from the gap between the warp yarns, and there was no void caused by the air embrace.
【００８２】一方、比較例１のようによこ方向補助糸の
曲げ剛性指数が５Ｋｇｆ・ｍｍ2 以下であると、織物の
剛性がなく、織物貼り付け時に皺が入る問題点があっ
た。また、よこ方向補助糸の曲げ剛性が小さいために、
たて方向の補強繊維糸の幅を制御する力がなく、糸幅が
最大に拡がりたて糸間に隙間がまったくない状態で、通
気量も小さい結果で、コンクリ−ト面に樹脂を塗布した
上に貼り付け、含浸ロ−ラ掛けを行ってもなかなか樹脂
が表面に出ず、貼り付け面と織物基材との樹脂厚み斑に
より成形面が凸凹した表面で見栄え悪いものであった。On the other hand, when the bending stiffness index of the weft direction auxiliary yarn is 5 kgf · mm 2 or less as in Comparative Example 1, there is a problem that the woven fabric has no rigidity and wrinkles occur when the woven fabric is attached. Also, since the bending stiffness of the weft direction auxiliary yarn is small,
There is no force to control the width of the reinforcing fiber yarn in the warp direction, the yarn width is expanded to the maximum, there is no gap between the yarns, the result is that the ventilation is small, and the resin is applied to the concrete surface. The resin did not easily come out to the surface even after the application and the impregnation with a roller, and the molding surface was uneven due to unevenness in the resin thickness between the application surface and the woven fabric substrate, and the appearance was poor.
【００８３】また、比較例２においては、よこ方向補助
糸にフィラメント数が6,000 本からなる炭素繊維糸を用
いた結果、高い曲げ剛性を有し、しかも十分な隙間を得
ることができたが、たて方向の補強繊維糸条とよこ方向
補助糸の引張り剛性比が小さいため、たて方向の補強繊
維糸条のクリンプが大きくなり、しかもよこ方向補助糸
が太いために成形後の表面が凸凹する問題があった。In Comparative Example 2, as a result of using a carbon fiber yarn having 6,000 filaments as the weft direction auxiliary yarn, a high bending rigidity and a sufficient gap could be obtained. The warp-direction reinforcing fiber yarn and the weft-direction auxiliary yarn have a small tensile stiffness ratio, so the crimp of the warp-direction reinforcing fiber yarn is large, and the formed surface is uneven due to the thick weft-direction auxiliary yarn. There was a problem.
【００８４】[0084]
【発明の効果】本発明の一方向性補強織物は、よこ方向
補助糸の曲げ剛性ならびにたて方向の補強繊維糸条とよ
こ方向補助糸の引張り剛性比を特定することにより、た
て方向に太い補強繊維糸条を使用し、粗いたて糸密度で
あっても織物に十分な剛性が付与され、成形時の貼り付
けの際に皺が生じたりすることがなく、また、織物の高
い剛性によって貼り付け面と織物基材間の樹脂厚み斑を
均一に延ばし、表面平滑に仕上げることが出来る。According to the unidirectional reinforcing fabric of the present invention, the bending stiffness of the weft direction auxiliary yarn and the tensile stiffness ratio of the reinforcing fiber yarns in the warp direction and the weft direction auxiliary yarn are specified to increase the warp direction. Using reinforced fiber yarns, sufficient rigidity is imparted to the woven fabric even at a coarse warp yarn density, no wrinkles are generated at the time of pasting at the time of molding, and it is attached due to the high rigidity of the woven fabric The resin thickness unevenness between the surface and the woven fabric substrate can be uniformly extended, and the surface can be finished to be smooth.
【００８５】さらに、たて方向の太い補強繊維糸に対し
て、曲げ剛性の高いよこ糸によって、たて糸間に樹脂が
通過するのに十分な隙間が得られ、貼り付け面の樹脂や
抱き込み空気を織物表面に抜くことが出来、ボイドや樹
脂厚み斑による表面凹凸のないコンクリート構造体の補
強が可能となる。Further, for the reinforcing fiber yarn having a large warp direction, a weft having a high bending rigidity provides a sufficient gap between the warp yarns to allow the resin to pass therethrough. It can be pulled out from the surface of the woven fabric, making it possible to reinforce a concrete structure without surface irregularities due to voids and unevenness in resin thickness.
【図１】 本発明の一方向性補強織物の実施態様例を示
す。FIG. 1 shows an embodiment of the unidirectional reinforcing fabric of the present invention.
【図２】 たて方向補助糸を有する本発明の一方向性補
強織物の実施態様例を示す。FIG. 2 shows an exemplary embodiment of the unidirectional reinforced fabric of the present invention having warp assist yarns.
【図３】 たて糸とよこ方向補助糸の交錯部の斜視図で
である（Ａ：よこ方向補助糸に平行な方向で補助糸近傍
に出来る隙間、Ｂ：織物を正面から見た際の隙間）。FIG. 3 is a perspective view of a crossing portion of a warp yarn and a weft direction auxiliary yarn (A: a gap formed in the vicinity of the auxiliary yarn in a direction parallel to the weft direction auxiliary yarn, B: a gap when the woven fabric is viewed from the front).
１：よこ方向補助糸 ２：たて方向補強繊維糸 ３：目どめ剤 ４：たて方向補助糸 1: Weft direction auxiliary yarn 2: Warp direction reinforcing fiber yarn 3: Membrane agent 4: Warp direction auxiliary yarn
─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成１０年６月２３日[Submission date] June 23, 1998
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１１[Correction target item name] 0011
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００１１】そのような問題に対して、補強繊維からな
るたて糸の密度を粗くし、たて糸間に充分な隙間を設
け、その隙間から樹脂が容易に表面に抜けるようにして
おくことが考えられる。In order to solve such a problem, it is conceivable to increase the density of the warp yarns made of reinforcing fibers, to provide a sufficient space between the warp yarns, and to allow the resin to easily pass through the space to the surface.
【手続補正２】[Procedure amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００３９[Correction target item name] 0039
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００３９】よこ方向の補助糸の曲げ剛性指数は、繊維
の引張り弾性率×（単繊維の直径）4 ×フィラメント数
で５×１０-3〜２００×１０-3Ｋｇｆ・ｍｍ2 が好まし
く、中でも２０×１０-3〜１００×１０-3Ｋｇｆ・ｍｍ
2 がより好ましい範囲である。ここで、単繊維の直径な
らびにフィラメント数は、糸を樹脂で固め、断面の拡大
写真から平均直径ならびにフィラメント数を読みとった
ものである。The bending stiffness index of the weft direction auxiliary yarn is preferably 5 × 10 −3 to 200 × 10 −3 Kgf · mm 2 in terms of the tensile modulus of the fiber × (diameter of a single fiber) 4 × the number of filaments. 20 × 10 -3 to 100 × 10 -3 Kgf · mm
2 is a more preferred range. Here, the diameter and the number of filaments of a single fiber are obtained by reading the average diameter and the number of filaments from an enlarged photograph of the cross section of the yarn solidified with a resin.
Claims (12)
に配列し、よこ方向に補助糸が配列してなる織物におい
て、 Ａ．補助糸の曲げ剛性指数（繊維の引張り弾性率×（単
繊維の直径）4 ×フィラメント数）が５×１０-3〜２０
０×１０-3Ｋｇｆ・ｍｍ2であり、 Ｂ．たて方向の補強繊維糸条とよこ方向補助糸の引張り
剛性（繊維の引張り弾性率×単位幅当たり繊維断面積）
の比が３〜１００であることを特徴とする一方向性補強
織物。1. A woven fabric in which a plurality of reinforcing fiber yarns are arranged in parallel in a warp direction and auxiliary yarns are arranged in a weft direction. The bending stiffness index of the auxiliary yarn (tensile modulus of fiber × (diameter of single fiber) 4 × number of filaments) is 5 × 10 −3 to 20
0 × 10 −3 Kgf · mm 2 ; Tensile rigidity of warp direction reinforcing fiber yarn and weft direction auxiliary yarn (tensile elastic modulus of fiber x fiber cross-sectional area per unit width)
A unidirectional reinforcing fabric having a ratio of 3 to 100.
フィラメント数が6,000 〜30,000本である請求項１の一
方向性補強織物。2. The unidirectional reinforcing fabric according to claim 1, wherein the reinforcing fibers are made of carbon fibers, and the number of carbon fiber filaments is 6,000 to 30,000.
2〜2.0mmの隙間があることを特徴とする請求項１乃至は
２のいずれかに記載の一方向性補強織物。3. The method of claim 1, wherein the reinforcing fibers are arranged in a warp direction.
The unidirectional reinforcing fabric according to any one of claims 1 to 2, wherein a gap of 2 to 2.0 mm is provided.
求項１乃至は３の一方向性補強織物。4. The unidirectional reinforcing fabric according to claim 1, wherein the weft direction auxiliary yarn is glass fiber.
〜５本／ｃｍである請求項１乃至は４のいずれかに記載
の一方向性補強織物。5. The arrangement density of warp yarns made of reinforcing fibers is 1
The unidirectional reinforcing woven fabric according to any one of claims 1 to 4, wherein the woven fabric has a thickness of from 5 to 5 / cm.
助糸が１本交互に交錯した平織構造である請求項１乃至
は５のいずれかに記載の一方向性補強織物。6. The unidirectional reinforced fabric according to claim 1, wherein the woven fabric has a plain weave structure in which one warp-direction reinforcing fiber yarn and one weft-direction auxiliary yarn are alternately crossed.
つ、たて方向の補強繊維糸条と１本交互にたて方向の補
助糸が配列し、よこ方向の補助糸が前記補強繊維糸条と
たて方向の補助糸とで平織組織をなしたノンクリンプ構
造である請求項１乃至は５のいずれかに記載の一方向性
補強織物。7. An auxiliary yarn in a warp direction is arranged in parallel with the reinforcing fiber yarns in the warp direction and alternately with the reinforcing fiber yarns in the warp direction. The unidirectional reinforcing fabric according to any one of claims 1 to 5, having a non-crimp structure in which the fiber yarn and the warp direction auxiliary yarn form a plain weave structure.
線状に配置し、前記補助糸とたて方向の補強繊維糸条の
交点で接着されている請求項１乃至は７のいずれかに記
載の一方向性補強織物。8. The method according to claim 1, wherein the sieving agent is linearly arranged along the auxiliary yarn in the weft direction, and is bonded at the intersection of the auxiliary yarn and the reinforcing fiber yarn in the warp direction. The unidirectional reinforcing fabric according to any one of the above.
螺旋状に配置し、前記補助糸とたて方向の補強繊維糸条
の交点で接着されている請求項１乃至は７のいずれかに
記載の一方向性補強織物。9. The method according to claim 1, wherein the sieving agent is spirally disposed around the auxiliary yarn in the weft direction, and is bonded at the intersection of the auxiliary yarn and the reinforcing fiber yarn in the warp direction. The unidirectional reinforcing fabric according to any one of the above.
150〜600ｇ／ｍ2 の織物において、ＪＩＳ Ｌ １０９６
法によるシート通気量が40〜300CC／cm2／secである請
求項１乃至は９のいずれかに記載の一方向性補強織物。10. The carbon fiber weight used in the vertical direction is
In a woven fabric of 150 to 600 g / m 2 , JIS L 1096
Unidirectional reinforcing fabric according to any one of claims 1 to 9 sheets aeration of law is 40~300CC / cm 2 / sec.
に、樹脂を塗布し、その上に請求項１乃至は１０のいず
れかに記載の一方向性補強織物を貼り付けて補修・補強
することを特徴とする構造物の補修または補強方法。11. A repair / reinforcement method in which a resin is applied to a portion of a structure to be repaired or reinforced, and the unidirectional reinforcing fabric according to any one of claims 1 to 10 is stuck thereon. How to repair or reinforce a featured structure.
に、樹脂を塗布し、その上に請求項１乃至は１０のいず
れかに記載の一方向性補強織物を貼り付けて補修・補強
することを特徴とするコンクリ−ト構造体の補修または
補強方法。12. A repair / reinforcement method in which a resin is applied to a portion of a structure to be repaired or reinforced, and the unidirectional reinforcing fabric according to any one of claims 1 to 10 is stuck thereon. A method for repairing or reinforcing a concrete structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19688997A JP3633221B2 (en) | 1997-07-23 | 1997-07-23 | Unidirectional reinforced fabric and repair or reinforcement method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19688997A JP3633221B2 (en) | 1997-07-23 | 1997-07-23 | Unidirectional reinforced fabric and repair or reinforcement method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1143839A true JPH1143839A (en) | 1999-02-16 |
| JP3633221B2 JP3633221B2 (en) | 2005-03-30 |
Family
ID=16365341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19688997A Expired - Fee Related JP3633221B2 (en) | 1997-07-23 | 1997-07-23 | Unidirectional reinforced fabric and repair or reinforcement method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3633221B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005349826A (en) * | 2004-05-14 | 2005-12-22 | Toray Ind Inc | Fiber reinforced composite material member |
| JP2009126730A (en) * | 2007-11-21 | 2009-06-11 | Taiheiyo Material Kk | Crack suppression material for cement hardened body, cement hardened body and manufacturing method of the cement hardened body |
| EP2813532A1 (en) | 2012-02-09 | 2014-12-17 | Toray Industries, Inc. | Carbon fiber composite material |
| JPWO2015053228A1 (en) * | 2013-10-07 | 2017-03-09 | ユニチカ株式会社 | Breathable film and method for producing the same |
| JP2019190014A (en) * | 2018-04-18 | 2019-10-31 | エルファイバーテック株式会社 | Reinforcing method for metallic pipe and reinforcing material |
| JP2021105234A (en) * | 2019-12-27 | 2021-07-26 | 三菱ケミカル株式会社 | Fiber woven fabric and carbon fiber-reinforced composite material |
| CN113832588A (en) * | 2021-10-08 | 2021-12-24 | 常州市宏发纵横新材料科技股份有限公司 | Reinforced fabric and using method thereof |
-
1997
- 1997-07-23 JP JP19688997A patent/JP3633221B2/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005349826A (en) * | 2004-05-14 | 2005-12-22 | Toray Ind Inc | Fiber reinforced composite material member |
| JP2009126730A (en) * | 2007-11-21 | 2009-06-11 | Taiheiyo Material Kk | Crack suppression material for cement hardened body, cement hardened body and manufacturing method of the cement hardened body |
| EP2813532A1 (en) | 2012-02-09 | 2014-12-17 | Toray Industries, Inc. | Carbon fiber composite material |
| EP2813532A4 (en) * | 2012-02-09 | 2015-11-25 | Toray Industries | Carbon fiber composite material |
| US9850368B2 (en) | 2012-02-09 | 2017-12-26 | Toray Industries, Inc. | Carbon fiber composite material |
| JPWO2015053228A1 (en) * | 2013-10-07 | 2017-03-09 | ユニチカ株式会社 | Breathable film and method for producing the same |
| JP2019190014A (en) * | 2018-04-18 | 2019-10-31 | エルファイバーテック株式会社 | Reinforcing method for metallic pipe and reinforcing material |
| JP2021105234A (en) * | 2019-12-27 | 2021-07-26 | 三菱ケミカル株式会社 | Fiber woven fabric and carbon fiber-reinforced composite material |
| CN113832588A (en) * | 2021-10-08 | 2021-12-24 | 常州市宏发纵横新材料科技股份有限公司 | Reinforced fabric and using method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3633221B2 (en) | 2005-03-30 |
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