硅酸盐通报2017，Vol.36Issue(6)：1835-1840,6.
暴露和浸泡混凝土氯离子结合能力相关性研究
Correlation Study of Concrete Chloride Ion Binding Capacity between Exposure and Immersion
摘要
Abstract
Concrete corrosion test under long term immersion and field exposure environment was done.The total and free chloride ion content of concrete sample was measured at different depth under different environment.With regression method, the concrete chloride binding capacity KR between diffusion depth or concrete compressive strength was analyzed.The results show that KR (correlation of concrete chloride binding capacity) decreased with the increasing of concrete compressive strength.The KR are much larger than 1.2 when the concrete compressive strength is less than 58.6 MPa and increased with the increasing of chloride diffusion depths, the value of KR is just 0.8 when the concrete compressive strength is 80.6 MPa and increased with the increasing of chloride diffusion depths.In order to predict the service life of field concrete structure more accutate, concrete binding capacity under immersion condition is converted into concrete binding capacity under field environment based on the equation RE=2.687e-0.0142fc+(0.0111-0.0002fc)xRI.关键词
浸泡/暴露/混凝土/氯离子结合能力/相关性Key words
immersion/exposure/concrete/chloride ion binding capacity/correlation分类
建筑与水利引用本文复制引用
张立明,余红发,刘福明,李佳..暴露和浸泡混凝土氯离子结合能力相关性研究[J].硅酸盐通报,2017,36(6):1835-1840,6.基金项目
江西省教育厅科学技术研究项目(GJJ151140) （GJJ151140）
国家重点基础研究发展计划("973"计划)(2009CB623203) （"973"计划）
