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珊瑚混凝土作为离岸岛礁基础设施的重要建筑材料,成为近几十年研究的焦点。珊瑚集料的矿物组成、孔隙结构和颗粒形貌导致其性能与一般陆源岩石集料差异较大,进而导致珊瑚混凝土在配合比设计方法、静/动态力学特性和耐久性方面与普通混凝土存在差异,但与轻集料混凝土和再生集料混凝土类似。纤维的类型与掺量也会影响珊瑚混凝土的相关性能。珊瑚混凝土的发展已从材料层面逐渐转向结构层面,采用适当的调控措施可延长离岸环境下珊瑚混凝土结构的服役寿命。此外,还分析了珊瑚混凝土存在的问题,并尝试探索相关解决方案。
Abstract：As an important construction material of offshore reef infrastructures, coral concrete becomes one of recent popular research aspects. Compared to aggregates derived from terrigenous rocks, coral aggregates are unique because of their mineral composition, pore structure and particle morphology. Coral aggregate concretes are different from those made of ordinary aggregates in terms of mixture proportion design, static/dynamic mechanical properties and durability, while they are similar to lightweight aggregate and recycled aggregate concretes. Meanwhile, the properties of coral concretes are also affected by the type and volume fraction of fibers. In addition, the development of coral concretes is gradually extended from a material level to a structural level. Appropriate modification is of great significance to extend the service life of the structures in offshore environment. In this review, the problems encountered in these modification processes and the corresponding potential solutions were discussed.
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基本信息:
DOI：10.14062/j.issn.0454-5648.20200951
中图分类号:TU528
引用信息:
[1]蔡新光,赵青,陈惠苏.珊瑚混凝土研究现状[J].硅酸盐学报,2021,49(08):1753-1764.DOI:10.14062/j.issn.0454-5648.20200951.
基金信息:
国家自然科学基金项目(51878152)
2021-06-18
2021-06-18
2021-06-18