珊瑚混凝土基本特性及工程应用研究进展

Research Progress on Properties and Applications of Coral Concrete

珊瑚岛礁工程建设对于保障国家海洋权益具有重大战略意义。珊瑚混凝土逐渐成为岛礁建设主要承载体和建筑材料,对其基本特性及工程应用的研究是当前热点课题之一。总结近几十年来国内外在珊瑚混凝土基本物理特性、强度与变形特性及影响因素、耐久性及影响因素、微观结构及改性等方面研究成果,并对其在岛礁工程中的应用展开讨论与展望。最后指出加强珊瑚混凝土静、动力学特性、海水侵蚀微观机理研究,建立相应本构方程和氯离子侵入模型,开展复杂海洋环境和极端荷载联合作用下岛礁珊瑚混凝土工程结构的稳定性、耐久性分析是珊瑚混凝土进一步探索的方向。

Coral reef construction has great strategic significance for the maintenance of national marine rights and interests.Coral concrete has gradually become the main supporting and building material in the construction of islands,while the study of its basic properties and engineering applications is one of the present research highlights.A summarize about the research achievements in recent decades on coral concrete is given below,mainly covering the physical properties,strength and deformation behaviors,durability and affecting factors,the study of microstructure and improving methods.Meanwhile,the engineering applications of coral concrete,especially in reef construction projects are also discussed.The further steps of research on coral concrete include the study about static and dynamic properties,microscopic mechanism of seawater corrosion,constitutive equation and chloride intrusion model,the stability and durability analysis of engineering structures under complex ocean environment and combined effects of extreme loads.