硅酸盐通报2016，Vol.35Issue(9)：2695-2700,6.
海洋环境下珊瑚混凝土的表面氯离子浓度规律
Surface Chloride Concentration Profiles of Coral Concrete Exposed to Marine Environment
摘要
Abstract
The surface chloride concentration profiles of coral concrete exposed to substitute ocean water were investigated ,and influences of curing age , exposing time and strength grade of coral concrete on free chloride diffusion coefficients of coral concrete were discussed by using the natural diffusion method .Results show that surface chloride concentration profiles of coral concrete decreases with the passage of curing age and strength grade.However, that increases with the passage of exposure time and gradually tends to stabilize .The surface chloride concentration profiles of C 50 coral concrete is 3.5 times higher of C50 normal concrete in the same conditions.Under the same curing age and exposure time , the surface chloride ion concentration of the south china sea island and reef actual enviroment cubic specimen is 60%-90% higher than the laboratory data.The surface chloride ion concentration of coral in practical engineering concrete structure value is 1.2-1. 6 times higher than the laboratory data .Therefore, in terms of concrete structures under the actual marine environment , in order to ensure the structural strength and considering the influence of the surface chloride ion concentration, we should prolong wet curing time and adopt approximately strength grade of coral concrete have such great influence on extending the service life of coral concrete .关键词
珊瑚混凝土/海洋环境/表面氯离子浓度/养护龄期/暴露时间Key words
coral concrete/marine environment/surface chloride concentration profile/curing time/exposing time分类
建筑与水利引用本文复制引用
窦雪梅,余红发,麻海燕,达波,袁银峰,糜人杰,朱海威..海洋环境下珊瑚混凝土的表面氯离子浓度规律[J].硅酸盐通报,2016,35(9):2695-2700,6.基金项目
国家自然科学基金（51508272）；国家重点基础研究发展计划（973计划）（2015CB6551002）；爆炸冲击防灾减灾国家重点实验室（解放军理工大学）开放课题资助（DPMEIKF201303）；江苏省普通高校研究生科研创新计划项目 （）
