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FIBER-REINFORCED SHEET AND BENDING METHOD FOR FIBER-REINFORCED SHEET
To provide a fiber-reinforced sheet that can be bent on-site into a shape with a curvature that fits curved areas such as corners of structures using the fiber reinforced sheet when reinforcing structures such as deck slabs, piers and culverts, for example, and a bending method for a fiber-reinforced sheet.SOLUTION: There is provided a fiber-reinforced sheet 1 that is obtained by: impregnating a reinforced-fiber bundle made up of many continuous reinforced-fibers f with a matrix resin R; arranging a plurality of hardened continuous fiber-reinforced plastic wires 2 into a sagging shape in a longitudinal direction; and fixing the wires to each other with a wire fixing material. In the fiber-reinforced sheet 1 to be bonded and integrated with the surface of a structure 100 using an adhesive, the glass transition temperature (Tg value) of the matrix resin R is in a range of 50 to 150°C, a number of twists on the reinforced-fiber bundle is 5 to 100 times per meter; and bonding processing can be performed by heating.SELECTED DRAWING: Figure 7
【課題】繊維強化シートを使用して、例えば、床版、橋脚、カルバートなどの構造物の補強に際して、構造物のコーナー部などの屈曲した箇所に適合する曲率を有した形状に、現場においても曲げ加工が可能な繊維強化シート及び繊維強化シートの曲げ加工方法を提供する。【解決手段】連続した強化繊維ｆを多数本収束した強化繊維束にマトリクス樹脂Ｒが含浸され、硬化された連続した繊維強化プラスチック線材２を複数本、長手方向にスダレ状に引き揃え、線材を互いに線材固定材にて固定した繊維強化シート１であって、構造物１００の表面に接着材にて接着して一体化するための繊維強化シート１において、マトリクス樹脂Ｒは、ガラス転移点温度（Ｔｇ値）が５０～１５０℃の範囲とされ、強化繊維束は、１ｍ当たり５～１００回の撚りが入っており、加熱により曲げ加工が可能とされる。【選択図】図7
FIBER-REINFORCED SHEET AND BENDING METHOD FOR FIBER-REINFORCED SHEET
To provide a fiber-reinforced sheet that can be bent on-site into a shape with a curvature that fits curved areas such as corners of structures using the fiber reinforced sheet when reinforcing structures such as deck slabs, piers and culverts, for example, and a bending method for a fiber-reinforced sheet.SOLUTION: There is provided a fiber-reinforced sheet 1 that is obtained by: impregnating a reinforced-fiber bundle made up of many continuous reinforced-fibers f with a matrix resin R; arranging a plurality of hardened continuous fiber-reinforced plastic wires 2 into a sagging shape in a longitudinal direction; and fixing the wires to each other with a wire fixing material. In the fiber-reinforced sheet 1 to be bonded and integrated with the surface of a structure 100 using an adhesive, the glass transition temperature (Tg value) of the matrix resin R is in a range of 50 to 150°C, a number of twists on the reinforced-fiber bundle is 5 to 100 times per meter; and bonding processing can be performed by heating.SELECTED DRAWING: Figure 7
【課題】繊維強化シートを使用して、例えば、床版、橋脚、カルバートなどの構造物の補強に際して、構造物のコーナー部などの屈曲した箇所に適合する曲率を有した形状に、現場においても曲げ加工が可能な繊維強化シート及び繊維強化シートの曲げ加工方法を提供する。【解決手段】連続した強化繊維ｆを多数本収束した強化繊維束にマトリクス樹脂Ｒが含浸され、硬化された連続した繊維強化プラスチック線材２を複数本、長手方向にスダレ状に引き揃え、線材を互いに線材固定材にて固定した繊維強化シート１であって、構造物１００の表面に接着材にて接着して一体化するための繊維強化シート１において、マトリクス樹脂Ｒは、ガラス転移点温度（Ｔｇ値）が５０～１５０℃の範囲とされ、強化繊維束は、１ｍ当たり５～１００回の撚りが入っており、加熱により曲げ加工が可能とされる。【選択図】図7
FIBER-REINFORCED SHEET AND BENDING METHOD FOR FIBER-REINFORCED SHEET
繊維強化シート及び繊維強化シートの曲げ加工方法
SAITO MAKOTO (author) / YOSHIZAWA HIROYUKI (author)
2023-10-17
Patent
Electronic Resource
Japanese
IPC:
B29C
Formen oder Verbinden von Kunststoffen
,
SHAPING OR JOINING OF PLASTICS
/
D06M
Behandeln von Fasern, Fäden, Garnen, Textilgut, Federn oder aus solchen Materialien hergestelltem Fasergut, soweit nicht anderweitig in Klasse D06 vorgesehen
,
TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
/
E01D
BRIDGES
,
Brücken
| European Patent Office | 2024
European Patent Office | 2025