Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method for reinforcing concrete by adhering MMT modified epoxy resin to fiber cloth
The invention discloses a construction method for reinforcing concrete by adhering MMT modified epoxy resin to fiber cloth, which is characterized by comprising the following steps: polishing the surface of the concrete until coarse aggregate is exposed, wiping with ethanol, and airing at room temperature; the preparation method comprises the following steps: weighing 100 parts of epoxy resin and 2 parts of montmorillonite (MMT), and placing at the temperature of 75-80 DEG C for 2 hours; mixing the two materials, and stirring for 10 minutes; putting the mixture into a high-speed stirrer, and fully stirring for 1-2 hours at the rotating speed of 2000-3000r; adding 50 parts of a curing agent, stirring for 0.5 h, and defoaming to obtain a montmorillonite modified epoxy resin composite material; montmorillonite modified epoxy resin is uniformly smeared on the surface of concrete, and fiber cloth is attached to reinforce the concrete. According to the invention, the epoxy resin is modified by utilizing the nano-montmorillonite, so that the epoxy resin can be endowed with many excellent new properties, such as rigidity, hydrophobicity, thermal stability and the like, and the service life of the FRP reinforced concrete in a severe environment is further prolonged.
本发明公开了一种MMT改性环氧树脂粘贴纤维布加固混凝土的施工方法，其特征在于，包括以下步骤：对混凝土表面进行打磨至露出粗骨料，用乙醇擦后室温下晾干；称取100份的环氧树脂和2份的蒙脱土(MMT)置于75～80℃的温度下2h；两种材料混合，搅拌10min；混合体置于高速搅拌机，转速2000～3000r，充分搅拌1～2h；加入50份固化剂搅拌0.5h，消泡，得到蒙脱土改性环氧树脂复合材料；蒙脱土改性环氧树脂均匀涂抹在混凝土的表面，贴上纤维布对混凝土进行加固。本发明利用纳米蒙脱土对环氧树脂进行改性，可以赋予环氧树脂许多优异的新性能，例如刚度、疏水性和热稳定性等，进而提高FRP加固混凝土在恶劣环境下的使用年限。
Construction method for reinforcing concrete by adhering MMT modified epoxy resin to fiber cloth
The invention discloses a construction method for reinforcing concrete by adhering MMT modified epoxy resin to fiber cloth, which is characterized by comprising the following steps: polishing the surface of the concrete until coarse aggregate is exposed, wiping with ethanol, and airing at room temperature; the preparation method comprises the following steps: weighing 100 parts of epoxy resin and 2 parts of montmorillonite (MMT), and placing at the temperature of 75-80 DEG C for 2 hours; mixing the two materials, and stirring for 10 minutes; putting the mixture into a high-speed stirrer, and fully stirring for 1-2 hours at the rotating speed of 2000-3000r; adding 50 parts of a curing agent, stirring for 0.5 h, and defoaming to obtain a montmorillonite modified epoxy resin composite material; montmorillonite modified epoxy resin is uniformly smeared on the surface of concrete, and fiber cloth is attached to reinforce the concrete. According to the invention, the epoxy resin is modified by utilizing the nano-montmorillonite, so that the epoxy resin can be endowed with many excellent new properties, such as rigidity, hydrophobicity, thermal stability and the like, and the service life of the FRP reinforced concrete in a severe environment is further prolonged.
本发明公开了一种MMT改性环氧树脂粘贴纤维布加固混凝土的施工方法，其特征在于，包括以下步骤：对混凝土表面进行打磨至露出粗骨料，用乙醇擦后室温下晾干；称取100份的环氧树脂和2份的蒙脱土(MMT)置于75～80℃的温度下2h；两种材料混合，搅拌10min；混合体置于高速搅拌机，转速2000～3000r，充分搅拌1～2h；加入50份固化剂搅拌0.5h，消泡，得到蒙脱土改性环氧树脂复合材料；蒙脱土改性环氧树脂均匀涂抹在混凝土的表面，贴上纤维布对混凝土进行加固。本发明利用纳米蒙脱土对环氧树脂进行改性，可以赋予环氧树脂许多优异的新性能，例如刚度、疏水性和热稳定性等，进而提高FRP加固混凝土在恶劣环境下的使用年限。
Construction method for reinforcing concrete by adhering MMT modified epoxy resin to fiber cloth
MMT改性环氧树脂粘贴纤维布加固混凝土的施工方法
LEI ZHEN (Autor:in) / LIN JUNBIAO (Autor:in) / ZHANG XIANG (Autor:in) / QU JUNTONG (Autor:in) / YANG CHANGBO (Autor:in) / XIAO TIANYU (Autor:in) / RAN HONGYU (Autor:in) / LIN ZHENYU (Autor:in)
29.07.2022
Patent
Elektronische Ressource
Chinesisch
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