JPH0474494B2 - - Google Patents
Info
- Publication number
- JPH0474494B2 JPH0474494B2 JP58224410A JP22441083A JPH0474494B2 JP H0474494 B2 JPH0474494 B2 JP H0474494B2 JP 58224410 A JP58224410 A JP 58224410A JP 22441083 A JP22441083 A JP 22441083A JP H0474494 B2 JPH0474494 B2 JP H0474494B2
- Authority
- JP
- Japan
- Prior art keywords
- reinforcing material
- reinforcing
- concrete
- fibers
- tensile strength
- 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 - Lifetime
Links
- 239000012779 reinforcing material Substances 0.000 claims description 32
- 239000000463 material Substances 0.000 claims description 31
- 239000004567 concrete Substances 0.000 claims description 25
- 238000009940 knitting Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 description 17
- 230000003014 reinforcing effect Effects 0.000 description 8
- 239000004760 aramid Substances 0.000 description 7
- 229920003235 aromatic polyamide Polymers 0.000 description 7
- 230000002787 reinforcement Effects 0.000 description 7
- 125000003118 aryl group Chemical group 0.000 description 6
- 238000005452 bending Methods 0.000 description 6
- 150000001408 amides Chemical class 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 229920000049 Carbon (fiber) Polymers 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000004917 carbon fiber Substances 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000004381 surface treatment Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 description 1
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 229920002614 Polyether block amide Polymers 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000002241 glass-ceramic Substances 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000007733 ion plating Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001470 polyketone Polymers 0.000 description 1
- -1 polymethylene Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Description
【発明の詳細な説明】
本発明は、引張り強度の低いコンクリート構造
用材料内に埋設して引張り強度を強化するために
用いられる補強材に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a reinforcing material used for embedding in a concrete structural material having low tensile strength to increase the tensile strength.
従来、この種補強材として、鉄筋或いはガラス
繊維、炭素繊維等の引張り強度の大きな繊維等が
知られているが、鉄筋の場合はサビによる耐久性
減少の他にその曲げ加工や配筋が困難で施工性が
悪い不都合を有し、繊維の場合は各繊維がコンク
リート内に不連続にバラバラの状態で配合されて
いるためにコンクリートに加えられる応力がコン
クリート全体に伝達されにくく引張り強度の強化
が充分になされない不都合を有する。また、引き
揃えたガラス繊維や炭素繊維で籠形等を形成し、
これをコンクリート構造物内に埋設するようにし
たものも特開昭55−149162号公報、実開昭53−
159115号公報或いは実開昭56−146738号公報で知
られているが、この場合、各繊維の一体化が乏し
く、コンクリートに加わる応力がコンクリート全
体に充分伝達されず、自由な配筋を行なえない不
都合がある。 Traditionally, reinforcing materials such as reinforcing bars or fibers with high tensile strength such as glass fibers and carbon fibers have been known, but in the case of reinforcing bars, their durability is reduced due to rust, and it is difficult to bend and arrange the reinforcements. In the case of fibers, each fiber is discontinuously mixed into the concrete, making it difficult for the stress applied to the concrete to be transmitted throughout the concrete, making it difficult to strengthen the tensile strength. It has the disadvantage of not being adequately addressed. In addition, by forming a basket shape with glass fibers or carbon fibers that are aligned,
A structure in which this is buried in a concrete structure is also disclosed in Japanese Unexamined Patent Publication No. 149162/1983,
It is known from Publication No. 159115 or Publication of Utility Model Application No. 146738/1982, but in this case, each fiber is poorly integrated, and the stress applied to the concrete is not sufficiently transmitted to the entire concrete, making it impossible to freely arrange reinforcement. It's inconvenient.
本発明はこれらの不都合を解消したコンクリー
ト構造用材料の補強材を提供することを目的とす
るもので、コンクリート構造用材料よりも引張り
強度の大きな材料で形成される細線を組紐状に編
成して成ることを特徴とする。 The purpose of the present invention is to provide a reinforcing material for concrete structural materials that eliminates these disadvantages, and is made by knitting thin wires made of a material with a higher tensile strength than the concrete structural materials into a braid shape. It is characterized by becoming.
以下、添付図面に従つて本発明の実施例を説明
する。 Embodiments of the present invention will be described below with reference to the accompanying drawings.
図示のものは、本発明の補強材１をコンクリー
ト構造物５を構成するコンクリート構造用材料２
の補強に用いた例を示す。 In the illustrated example, the reinforcing material 1 of the present invention is used as a concrete structural material 2 constituting a concrete structure 5.
An example of this is shown below.
第１図及び第２図は、予め立設された４本の主
筋３……にそれらを相互に接続する形でせん断補
強筋４を巻設し、その周囲にコンクリートを打設
してコンクリート構造物５として構成したものを
示し、この主筋３……及びせん断補強筋４として
本発明の補強材１を用い、該構造物５に生じる引
張り力を支持するようにした。 Figures 1 and 2 show a concrete structure in which shear reinforcing bars 4 are wound around four main bars 3 erected in advance to interconnect them, and concrete is poured around them. The reinforcing material 1 of the present invention is used as the main reinforcing bars 3 and the shear reinforcing bars 4 to support the tensile force generated in the structure 5.
該補強材１は、第３図示の如く引張り強度の大
きな材料で形成される細線６として280〜370Kg／
mm2の引張り強度を有する芳香族ポリアミド繊維を
用い、これを８本の集合糸７から成る丸打紐状に
編成し、該各細線６を相互に一体化した。 The reinforcing material 1 has a weight of 280 to 370 kg as a thin wire 6 made of a material with high tensile strength as shown in the third figure.
Aromatic polyamide fibers having a tensile strength of mm 2 were used, and were knitted into a round string shape consisting of eight gathered threads 7, and the thin threads 6 were integrated with each other.
該細線６を構成する芳香族ポリアミド繊維とし
ては、直線配位性芳香族ポリアミド、芳香族ポリ
エーテルアミド、芳香族ポリサルフアイドアミ
ド、芳香族ポリスルフオンアミド、芳香族ポリメ
チレンアミド、芳香族ポリケトンアミド、芳香族
ポリアミンアミド及びこれらの共重合体から成る
繊維等が含まれる。又、該細線６は前記芳香族ポ
リアミド繊維に限ることなく、炭素繊維、ガラス
繊維、セラミツク繊維等の無機繊維、ポリエステ
ル繊維、高強度ポリオレフイン繊維、強力ポリア
ミド繊維、強力ポリビニルアルコール繊維等の有
機繊維、冷間引抜鋼線、プレストレス用鋼線等の
金属線等を単独で或いはこれらを組み合わせたり
して用いることができる。又、該細線６を長さ方
向に異形断面を不規則に有するように構成すれ
ば、該各細線６間の摩擦抵抗が大きくなつて該各
細線６に加わる応力が補強材１全体に伝わると共
に、該補強材１とコンクリート構造用材料２の密
着性が向上するので好ましい。 The aromatic polyamide fibers constituting the thin wire 6 include linearly coordinated aromatic polyamide, aromatic polyether amide, aromatic polysulfamide amide, aromatic polysulfonamide, aromatic polymethylene amide, and aromatic polyketone. Includes fibers made of amides, aromatic polyamine amides, and copolymers thereof. Furthermore, the thin wire 6 is not limited to the aromatic polyamide fibers, but may also include inorganic fibers such as carbon fibers, glass fibers, and ceramic fibers, organic fibers such as polyester fibers, high-strength polyolefin fibers, strong polyamide fibers, and strong polyvinyl alcohol fibers, Metal wires such as cold-drawn steel wires and prestressing steel wires can be used alone or in combination. Furthermore, if the thin wires 6 are configured to have irregularly shaped cross sections in the length direction, the frictional resistance between the thin wires 6 increases, and the stress applied to the thin wires 6 is transmitted to the entire reinforcing material 1. , is preferable because the adhesion between the reinforcing material 1 and the concrete structural material 2 is improved.
該細線６の組紐状への編成は、前記丸打紐状の
他、角打紐状、平打紐状等、種々の組紐状に編成
できる。又、これらを異形断面織として補強材１
と構造用材料２の密着性を向上させることもでき
る。更に、該補強材１を図示の如く主筋３として
用いる場合は、図示しないが該補強材１にその長
手方向に鉄線等の芯材を挿入したり、或いは該補
強材１の表面をエポキシ樹脂等の硬化性結合剤で
被覆する等適宜の方法で該補強材１に保形性を与
えるようにすることが好ましい。 The thin wires 6 can be knitted into various braid shapes, such as the round braid shape, square braid shape, and flat braid shape. In addition, these are used as a reinforcing material 1 as a modified cross-section weave.
It is also possible to improve the adhesion between the structural material 2 and the structural material 2. Furthermore, when the reinforcing material 1 is used as the main reinforcement 3 as shown in the figure, a core material such as iron wire may be inserted into the reinforcing material 1 in the longitudinal direction, or the surface of the reinforcing material 1 may be coated with epoxy resin or the like (not shown). It is preferable to impart shape retention to the reinforcing material 1 by an appropriate method such as coating it with a curable binder.
組紐状に編成された補強材１は図示の如く構造
用材料２内に埋設して用いる。又、図示の如く紐
状のまま用いたり、或いはこれをネツト状や織布
状にして用いることもできる。 A reinforcing material 1 knitted in the form of a braid is used by being embedded in a structural material 2 as shown in the figure. Further, it can be used in the form of a string as shown in the figure, or it can be used in the form of a net or woven fabric.
図示のものでは、補強材１をコンクリートの主
筋３及びせん断補強筋４として用いたが、これを
プレストレスコンクリートのPC鋼材の代用とし
ても利用できる。 In the illustrated example, the reinforcing material 1 is used as the main reinforcing bar 3 and the shear reinforcing bar 4 of the concrete, but it can also be used as a substitute for the PC steel material in prestressed concrete.
尚、補強材１を酸化エツチング、カツプリング
剤、メツキ、蒸着、イオンプレーテイング等によ
つて適宜に表面処理して構造用材料２との界面を
強化して補強材１の耐力を向上させるようにして
もよい。又、構造用材料２との親和性に優れた物
質で表面処理を行なつた場合は、構造用材料２と
補強材１との一体化を向上させることができる。
かかる表面処理は各細線６或いは集合糸７自体に
施してもよく、この場合摩擦係数の大きな物質で
表面処理すれば、各細線６或いは各集合糸７に加
わる応力が補強材１全体に更に良好に伝わり、構
造用材料２の引張り強度全体に更に良好に伝わ
り、構造用材料２の引張り強度の更なる向上が達
成される。 In addition, the reinforcing material 1 is appropriately surface-treated by oxidative etching, coupling agent, plating, vapor deposition, ion plating, etc. to strengthen the interface with the structural material 2 and improve the yield strength of the reinforcing material 1. It's okay. Furthermore, when the surface treatment is performed with a substance that has excellent affinity with the structural material 2, the integration of the structural material 2 and the reinforcing material 1 can be improved.
Such surface treatment may be applied to each of the fine wires 6 or the bundled yarns 7 themselves. In this case, if the surface treatment is performed with a substance having a large coefficient of friction, the stress applied to each of the fine wires 6 or each of the bundled yarns 7 can be further reduced to the entire reinforcing material 1. This is transmitted to the overall tensile strength of the structural material 2 even better, and a further improvement in the tensile strength of the structural material 2 is achieved.
次に、本発明の具体的実施例を比較例と共に説
明する。 Next, specific examples of the present invention will be described together with comparative examples.
実施例１として、1420デニールの全芳香族ポリ
アミド繊維のローピングの36本を丸打紐状に編成
して直径約３mmの補強材を作成した。 As Example 1, a reinforcing material with a diameter of about 3 mm was prepared by knitting 36 ropings of fully aromatic polyamide fibers of 1420 denier into a round string shape.
また、実施例２として、前記実施例１の補強材
の表面をビスフエノールＡ／エピクロルヒドリン
型エポキシ樹脂100重量部、トリエチレンテトラ
ミン14重量部から成るコーテイング材で被覆して
直径約３mmの補強材を作成した。 In addition, as Example 2, the surface of the reinforcing material of Example 1 was coated with a coating material consisting of 100 parts by weight of bisphenol A/epichlorohydrin type epoxy resin and 14 parts by weight of triethylenetetramine to form a reinforcing material with a diameter of about 3 mm. Created.
また、比較例１として、1420デニールの全芳香
族ポリアミド繊維のローピングを36ずつ引き揃
え、直径３mmの補強材を作成した。 Further, as Comparative Example 1, a reinforcing material with a diameter of 3 mm was prepared by aligning 36 ropings of fully aromatic polyamide fibers of 1420 denier.
また、比較例２として1420デニールの全芳香族
ポリアミド繊維を36本Ｓ字撚りして直径約３mmの
補強材を作成した。 Further, as Comparative Example 2, a reinforcing material having a diameter of about 3 mm was prepared by twisting 36 fully aromatic polyamide fibers of 1420 denier in an S-shape.
そして、前記各補強材の補強効果を比較するた
めに、ポルトランドセメント911Kg／cm3、水310
Kg／cm3、砂962Kg／cm3並びに増粘剤13.67Kg／cm3の
配合比から成る無機質組成物を真空度75mmＨｇ、
押出圧10Kg／cm2の条件で、縦50mm、横100mmの矩
形断面を有する長さ900mmの柱状体に押出し成形
しつつ、前記補強材を夫々、上下に２列、４本ず
つ計８本を埋入したものを製造し、20℃で14日間
養生し、得られたコンクリート構造用材料２の曲
げ強度を測定した。測定結果は次の通りであつ
た。 In order to compare the reinforcing effects of each of the above-mentioned reinforcing materials, 911 kg/cm 3 of Portland cement and 310 kg/cm 3 of water were used.
Kg/cm 3 , sand 962Kg/cm 3 and thickener 13.67Kg/cm 3 at a vacuum degree of 75mmHg,
At an extrusion pressure of 10 kg/cm 2 , the reinforcing materials were extruded into a 900 mm long columnar body with a rectangular cross section of 50 mm long and 100 mm wide. An embedded material was produced, cured at 20°C for 14 days, and the bending strength of the obtained concrete structural material 2 was measured. The measurement results were as follows.
実施例１ 150Kg／cm2
実施例２ 162Kg／cm2
比較例１ 99Kg／cm2
比較例２ 123Kg／cm2
尚、補強材を使用しないで前記と同様にしてコ
ンクリート構造用材料を製造してその曲げ強度を
測定したところ77Kg／cm2であつた。 Example 1 150Kg/cm 2Example 2 162Kg/cm 2Comparative Example 1 99Kg/cm 2Comparative Example 2 123Kg/cm 2A concrete structural material was manufactured in the same manner as above without using any reinforcing material. When the bending strength was measured, it was 77 kg/cm 2 .
このように、実施例１，２を用いた方が比較例
１，２を用いた場合よりも曲げ強度に優れ、曲げ
部材の引張り応力を負担する補強材として本発明
のものを使用すると曲げ強度が向上し、コンクリ
ート構造用材料の引張り強度を高め得ることが確
認された。 In this way, the bending strength of Examples 1 and 2 is superior to that of Comparative Examples 1 and 2, and the use of the present invention as a reinforcing material that bears the tensile stress of the bending member increases the bending strength. It was confirmed that the tensile strength of concrete structural materials could be increased.
また、実施例２は保形性にも優れ、埋入時の取
扱いが容易であつた。 In addition, Example 2 had excellent shape retention and was easy to handle during implantation.
このように本発明によるときは、構造用材料の
引張り強度の大きな材料で形成される細線を組紐
状に編成して成るために、曲げ加工や配筋作業が
容易で施工性に優れ、しかも各細線が相互に一体
化されて各細線に加わる応力が補強材全体に伝え
られるのでコンクリート構造用材料の引張り強度
を良好に向上できる効果を有する。 In this way, according to the present invention, since thin wires made of structural materials with high tensile strength are knitted into a braided cord shape, bending and reinforcement work are easy, and workability is excellent. Since the thin wires are integrated with each other and the stress applied to each thin wire is transmitted to the entire reinforcing material, it has the effect of improving the tensile strength of the concrete structural material.
第１図は本発明の補強材をコンクリート構造物
を形成するコンクリート構造用材料の補強に適用
した１例を示す平面線図、第２図はその正面線
図、第３図は本発明の補強材の１実施例の拡大図
である。
１……補強材、２……コンクリート構造用材
料、６……細線。
Fig. 1 is a plan view showing an example of applying the reinforcing material of the present invention to the reinforcement of concrete structural materials forming a concrete structure, Fig. 2 is a front view thereof, and Fig. 3 is a reinforcement of the present invention. FIG. 3 is an enlarged view of one embodiment of the material. 1...Reinforcement material, 2...Concrete structural material, 6...Thin wire.
Claims (1)
に埋設して引張り強度を強化するために用いられ
る補強材であつて、該コンクリート構造用材料よ
りも引張り強度の大きな材料で形成される細線を
組紐状に編成して成ることを特徴とするコンクリ
ート構造用材料の補強材。1 A reinforcing material used to strengthen the tensile strength by embedding it in a concrete structural material with low tensile strength, in which thin wires made of a material with a higher tensile strength than the concrete structural material are braided. A reinforcing material for concrete structural materials characterized by being formed by knitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58224410A JPS60119853A (en) | 1983-11-30 | 1983-11-30 | Reinforcing material of structural material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58224410A JPS60119853A (en) | 1983-11-30 | 1983-11-30 | Reinforcing material of structural material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60119853A JPS60119853A (en) | 1985-06-27 |
| JPH0474494B2 true JPH0474494B2 (en) | 1992-11-26 |
Family
ID=16813326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58224410A Granted JPS60119853A (en) | 1983-11-30 | 1983-11-30 | Reinforcing material of structural material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60119853A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0742767B2 (en) * | 1985-09-17 | 1995-05-10 | 三菱マテリアル株式会社 | Fixer for prestressed concrete |
| JPS62133240A (en) * | 1985-12-04 | 1987-06-16 | 三井建設株式会社 | Structural material |
| JPS6311747A (en) * | 1986-06-30 | 1988-01-19 | 三井建設株式会社 | Structural material and its production |
| JPS6325711U (en) * | 1986-08-01 | 1988-02-19 | ||
| JPH0296006A (en) * | 1988-09-30 | 1990-04-06 | Nippon Samikon Kk | Prefabricated pc shelter |
| JPH05269726A (en) * | 1992-03-25 | 1993-10-19 | Mitsui Constr Co Ltd | Reinforcing material for structure of civil engineering structure |
| JP7393816B2 (en) * | 2022-04-15 | 2023-12-07 | 株式会社I-deate&eng. | Structural base material, structural member, structure, and construction method of structural member |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55149162A (en) * | 1979-05-09 | 1980-11-20 | Kurimoto Ltd | Manufacture of glass long fiber reinforcing basket |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53159115U (en) * | 1977-05-20 | 1978-12-13 | ||
| JPS56146738U (en) * | 1980-04-07 | 1981-11-05 |
-
1983
- 1983-11-30 JP JP58224410A patent/JPS60119853A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55149162A (en) * | 1979-05-09 | 1980-11-20 | Kurimoto Ltd | Manufacture of glass long fiber reinforcing basket |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60119853A (en) | 1985-06-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |