南通职业大学学报2025，Vol.39Issue(1)：94-98,5.DOI:10.3969/j.issn.1008-5327.2025.01.018
预制拼装护岸混凝土结构的氯离子扩散性能试验
Chloride Ion Diffusion Characteristics in Prefabricated Concrete Revetments:An Experimental Study
摘要
Abstract
To investigate the chloride ion diffusion mechanisms in precast assembled concrete revetment structures,specimens with different material compositions are designed for Rapid Chloride Migration(RCM)tests to analyze the chloride ion diffusion patterns in cement-based specimens.The experimental results reveal:a positive correlation between water-cement ratio and chloride diffusion coefficient;aggregate interfacial transition zones significantly accelerate chloride penetration;optimal fly ash incorpora tion reduces chloride diffusion coefficient through pore-filling effects,extending time-to-corrosion initiation;when water-ce ment ratio exceeds the threshold,the filling effect of fly ash is influenced by the pore distribution in the interfacial transition zone of aggregates.In precast assembled concrete revetment structures,the chloride ion diffusion coefficient in the C-M interface zone is higher than that in the C zone and M zone.关键词
混凝土/预制护岸/氯离子迁移试验/骨料界面区/混凝土—砂浆连接区Key words
concrete/precast assembled revetment/Rapid Chloride Migration test/aggregate interfacial transition zone(ITZ)/concrete-mortar(C-M)interface zone分类
建筑与水利引用本文复制引用
施小飞,何陈磊,丁涛..预制拼装护岸混凝土结构的氯离子扩散性能试验[J].南通职业大学学报,2025,39(1):94-98,5.基金项目
南通市基础科学研究和社会民生科技计划项目(JCZ2022111) （JCZ2022111）
