FRP配筋海水珊瑚骨料混凝土材料及构件力学性能研究进展

Research progress on mechanical properties of FRP reinforced seawater coral aggregate concrete materials and structural components

  • 摘要: 为解决钢筋锈蚀和资源短缺问题,具有轻质高强、耐腐蚀特点的纤维增强聚合物(FRP)筋以及与普通骨料力学性能相近的珊瑚骨料成为近年来人们研究的新材料。本文从FRP与珊瑚骨料的材料特性及珊瑚骨料混凝土力学性能、FRP筋与珊瑚骨料混凝土黏结性能以及耐久性、FRP筋海水珊瑚骨料混凝土梁、柱构件的受力性能三个方面,对国内外相关研究进行对比分析,归纳出现有研究成果,认为FRP筋与珊瑚骨料混凝土有较好的协调工作性,并且可以有效增强珊瑚骨料混凝土结构的性能。此外总结出目前FRP筋、珊瑚骨料等材料的局限性以及FRP珊瑚骨料混凝土构件使用性能、耐久性能和设计方法研究还存在的不足,为FRP筋海水珊瑚骨料混凝土这种新型结构的继续研究提供参考。

     

    Abstract: In order to solve the problems of steel bar corrosion and resource shortage, fiber reinforced polymer (FRP) bars with light weight, high strength and corrosion resistance and coral aggregate with similar mechanical properties as common aggregate have become new materials studied by researchers in recent years. In this paper, from the following three aspects: the material characteristics of FRP and coral aggregate as well as mechanical properties of coral aggregate made concrete, the bonding performance and durability between FRP bars and coral aggregate concrete, and the mechanical properties of FRP bars reinforced coral aggregate concrete beams and columns, the relevant research results are summarized. It is considered that FRP bars and coral aggregate concrete have better compatibility and can effectively enhance the performance of coral aggregate concrete structures. In addition, the limitations of FRP bars, coral aggregate and other materials, as well as the shortcomings of the research on the service performance, durability and design method of FRP reinforced coral aggregate concrete members are summarized, which can provide reference for the further research on this new structure.

     

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