人工模拟与自然的氯盐环境中混凝土氯盐侵蚀相似性研究
发布时间：2019-01-19 09:09
【摘要】：正氯离子引起钢筋锈蚀是导致氯盐环境中钢筋混凝土结构耐久性退化的主因。在总结已有研究的基础上,确定人工模拟氯盐环境参数(如氯盐溶液浓度、温度、湿度、润湿时间、干燥时间和循环风速等)取值的依据和范围,制订基于混凝土内部微环境响应相似的人工模拟氯盐环境的试验制度,建立混凝土氯盐侵蚀相似准则模型,构筑人工模拟氯盐环境与自然氯盐环境中混凝土氯盐侵蚀的相似关系,预测氯盐环境中混凝土结构的使用寿命,并评
[Abstract]:Corrosion of reinforced bars caused by positive chloride ions is the main cause of durability degradation of reinforced concrete structures in chloride environment. On the basis of summarizing the existing research, the basis and range of the value of artificial simulated chlorine salt environment parameters (such as chloride solution concentration, temperature, humidity, wetting time, drying time and circulating wind speed, etc.) are determined. An experimental system of artificial simulation of chloride environment based on the similarity of microenvironment response in concrete was established, and a model of similar criteria for chloride erosion of concrete was established. To construct the similar relationship between artificial simulated chloride environment and natural chloride environment, to predict the service life of concrete structure in chloride environment, and to comment on it.
【作者单位】： 中南大学土木工程学院;中南大学高速铁路建造技术国家工程实验室;
【基金】：铁道部科技研究开发计划项目(2010G018-E-2) 长江学者和创新团队发展计划项目(IRT1296) 教育部博士研究生学术新人奖项目(094801016)
【分类号】：TU528.01
[Abstract]:Corrosion of reinforced bars caused by positive chloride ions is the main cause of durability degradation of reinforced concrete structures in chloride environment. On the basis of summarizing the existing research, the basis and range of the value of artificial simulated chlorine salt environment parameters (such as chloride solution concentration, temperature, humidity, wetting time, drying time and circulating wind speed, etc.) are determined. An experimental system of artificial simulation of chloride environment based on the similarity of microenvironment response in concrete was established, and a model of similar criteria for chloride erosion of concrete was established. To construct the similar relationship between artificial simulated chloride environment and natural chloride environment, to predict the service life of concrete structure in chloride environment, and to comment on it.
【作者单位】： 中南大学土木工程学院;中南大学高速铁路建造技术国家工程实验室;
【基金】：铁道部科技研究开发计划项目(2010G018-E-2) 长江学者和创新团队发展计划项目(IRT1296) 教育部博士研究生学术新人奖项目(094801016)
【分类号】：TU528.01
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