珊瑚骨料混凝土力学性能及耐久性能研究

Research of Coral Aggregate Concrete on Mechanical Property and Durability

随着南海岛礁的开发和建设,混凝土骨料的来源成为急需解决的问题之一。南海诸岛的地质结构大多为珊瑚岛礁,尝试采用珊瑚骨料代替普通骨料配制岛礁用混凝土,为此问题的解决提供了可能的途径。本文基于国内外已有的珊瑚骨料混凝土研究成果,综述了珊瑚骨料的基本特性、珊瑚骨料混凝土的力学和耐久性能以及矿物掺合料和纤维对珊瑚骨料混凝土的增强性能。文末简要讨论了今后珊瑚骨料混凝土的研究方向。

The development and construction of the South China Sea reefs exaggerate the gravity of local shortage of concrete aggregate sources.Most of the South China Sea islands have the geological structure of coral reefs,and the use of coral aggregate to replace ordinary aggregates for concrete preparation opens a plausible approach to the above mentioned problem.Based on the current worldwide research of coral aggregate concrete,this article reviews the basic characteristics of coral aggregate and mechanical properties and durability of coral aggregate concrete.It also describes the performances of coral aggregate concretes with mineral admixture or fiber reinforcements.The paper ends with a concise discussion upon the existing problems and the future research directions.