珊瑚骨料混凝土性能及微结构的研究进展  

A Review of Properties and Microstructure of Coral Aggregate Concrete

作　　者：王爱国[1] 吕邦成 刘开伟[1] 马雪[2] 徐海燕[1] 谭京梅 WANG Aiguo;LYU Bangcheng;LIU Kaiwei;MA Xue;XU Haiyan;TAN Jingmei(Anhui Key Laboratoryof Advanced Building Materials, AnhuiJianzhu University, Hefei 230022;College of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010)

机构地区：[1]安徽建筑大学安徽省先进建筑材料重点实验室,合肥230022 [2]西南科技大学材料科学与工程学院,绵阳621010

出　　处：《材料导报》2018年第9期1528-1533,共6页Materials Reports

基　　金：国家自然科学基金(51778003;11405140);安徽省高等教育人才项目(皖教高[2014]11号文);高校优秀中青年骨干人才国内外访学研修项目(gxfxZD2016134);国家级大学生创新创业训练计划项目(201710878028)

摘　　要：海洋工程混凝土是发展海洋经济的重要基础支撑,远洋岛礁工程"就地取材",即采用珊瑚等物料进行建设,是海洋土木工程研究的必然追求。珊瑚骨料与普通砂石骨料、轻集料在组成、结构及性能等方面存在明显差异。本文阐述了珊瑚骨料特性对混凝土工作性能、力学性能、体积稳定性能、耐久性能及微结构的影响,指出了珊瑚骨料混凝土存在强度不足、脆性大和抗蚀差等问题,并针对适合海洋环境的高强度、高韧性和高耐久的珊瑚骨料混凝土的研究开发进行了展望。The rapid development of marine economy rely remarkably on the production of marine engineering concrete,for which the utilization of nearby readily accessible raw materials is of great necessity in ocean reef construction.Coral aggregates exhibit composition,structure and properties quite dissimilar to ordinary aggregates or light aggregates.This article provides a clear description over the effects of coral aggregate characteristics on workability,mechanical properties,volume stability,durabi-lity and microstructures of concrete.It presents the thorny problems for coral aggregate concrete,such as insufficient strength,large brittleness and poor corrosion resistance,and moreover,outlines the future prospect of creating high-strength,high-toughness and high-durability coral aggregate concrete which is adaptable to marine environment.

关 键 词：珊瑚骨料 混凝土 工作性能 力学性能 体积稳定性 耐久性 微结构 

分 类 号：TU528[建筑科学—建筑技术科学]