A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
METHOD FOR REINFORCING OR REPAIRING STRUCTURE
PROBLEM TO BE SOLVED: To provide a method which is favorable in the adhesion of a reinforcing material, prevents the occurrence of the displacement of a reinforcing material at thermal curing, can shorten a construction time, and is favorable in workability, in the method for reinforcing or repairing a structure by using the reinforcing material including a reinforced fiber and a matrix resin.SOLUTION: This method for reinforcing or repairing a structure pastes a reinforcing material 120 including a reinforced fiber and a matrix resin to a structure 900 via an adhesive resin composition 110 including an uncured resin, and heats the reinforcing material for five minutes or longer and sixty minutes or shorter at a temperature of 100°C or higher and 200°C or lower. The adhesive resin composition 110 satisfies the following physical properties. (i) a) When a storage elastic modulus at a frequency of 1 Hz at a temperature of 25°C, and at a zero minute and thirty minutes is lower than 6,000 Pa, a loss tangent is not smaller than 1.1, or b) when the storage elastic modulus is not lower than 6,000 Pa and not higher than 25,000 Pa, the loss tangent is not smaller than 0.8 and smaller than 1.2. (ii) The lowest storage elastic modulus is obtained at a temperature of 25°C or higher and 150°C or lower, and the lowest storage elastic modulus is not lower than 800 Pa.SELECTED DRAWING: Figure 1
【課題】強化繊維とマトリックス樹脂を含む補強材を用いて構造物を補強または補修する方法において、補強材の接着性が良好で、加熱硬化時に補強材のずれの発生を防止し、施工時間の短縮化が図れ、かつ作業性が良好な方法を提供する。【解決手段】本発明の構造物を補強または補修する方法は、強化繊維とマトリックス樹脂とを含む補強材120を、未硬化樹脂を含む接着剤樹脂組成物110を介して構造物900に貼り付け、100℃以上200℃以下で5分以上60分以下加熱する。接着剤樹脂組成物110は、以下の物性を満たす：（i）25℃、0分および30分における周波数1Hzでのa)貯蔵弾性率が6,000Pa未満の場合損失正接が1.1以上、または、b)貯蔵弾性率が6,000Pa以上25,000Pa以下の場合損失正接が0.8以上1.2未満、および（ii）25℃以上150℃以下で最低貯蔵弾性率を示し、かつ最低貯蔵弾性率が800Pa以上。【選択図】図１
METHOD FOR REINFORCING OR REPAIRING STRUCTURE
PROBLEM TO BE SOLVED: To provide a method which is favorable in the adhesion of a reinforcing material, prevents the occurrence of the displacement of a reinforcing material at thermal curing, can shorten a construction time, and is favorable in workability, in the method for reinforcing or repairing a structure by using the reinforcing material including a reinforced fiber and a matrix resin.SOLUTION: This method for reinforcing or repairing a structure pastes a reinforcing material 120 including a reinforced fiber and a matrix resin to a structure 900 via an adhesive resin composition 110 including an uncured resin, and heats the reinforcing material for five minutes or longer and sixty minutes or shorter at a temperature of 100°C or higher and 200°C or lower. The adhesive resin composition 110 satisfies the following physical properties. (i) a) When a storage elastic modulus at a frequency of 1 Hz at a temperature of 25°C, and at a zero minute and thirty minutes is lower than 6,000 Pa, a loss tangent is not smaller than 1.1, or b) when the storage elastic modulus is not lower than 6,000 Pa and not higher than 25,000 Pa, the loss tangent is not smaller than 0.8 and smaller than 1.2. (ii) The lowest storage elastic modulus is obtained at a temperature of 25°C or higher and 150°C or lower, and the lowest storage elastic modulus is not lower than 800 Pa.SELECTED DRAWING: Figure 1
【課題】強化繊維とマトリックス樹脂を含む補強材を用いて構造物を補強または補修する方法において、補強材の接着性が良好で、加熱硬化時に補強材のずれの発生を防止し、施工時間の短縮化が図れ、かつ作業性が良好な方法を提供する。【解決手段】本発明の構造物を補強または補修する方法は、強化繊維とマトリックス樹脂とを含む補強材120を、未硬化樹脂を含む接着剤樹脂組成物110を介して構造物900に貼り付け、100℃以上200℃以下で5分以上60分以下加熱する。接着剤樹脂組成物110は、以下の物性を満たす：（i）25℃、0分および30分における周波数1Hzでのa)貯蔵弾性率が6,000Pa未満の場合損失正接が1.1以上、または、b)貯蔵弾性率が6,000Pa以上25,000Pa以下の場合損失正接が0.8以上1.2未満、および（ii）25℃以上150℃以下で最低貯蔵弾性率を示し、かつ最低貯蔵弾性率が800Pa以上。【選択図】図１
METHOD FOR REINFORCING OR REPAIRING STRUCTURE
構造物を補強または補修する方法
NAKAO RYOSUKE (author) / INOUE HIROO (author)
2018-02-08
Patent
Electronic Resource
Japanese
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