混凝土中氯离子传输模型研究进展  

Advancements in Chloride Ion Transport Models in Concrete

作　　者：邓学峰 DENG Xuefeng(Beijing Municipal Luqiao Co.,Ltd.)

机构地区：[1]北京市政路桥股份有限公司

出　　处：《广东建材》2025年第3期168-171,共4页Guangdong Building Materials

摘　　要：钢筋的氯离子腐蚀是混凝土结构耐久性和使用寿命下降的重要原因之一。由于混凝土结构的复杂性,混凝土中氯离子的迁移过程是多样化的。因此,很难通过单一的试验研究来说明氯离子在混凝土中的传输机理。有必要在试验研究的基础上,通过理论模拟来探索氯离子在混凝土中的传输过程和机理。总结了氯离子迁移的相关模型,指出了现有模型的优缺点,并对氯离子迁移模型的研究方向进行了展望。Chloride ion corrosion of steel bars is one of the important reasons for the decrease of durability and service life of concrete structures.Due to the complexity of concrete structure,the migration process of chloride ions in concrete is diversified.Therefore,it is difficult to explain the transport mechanism of chloride ion in concrete through a single experimental study.It is necessary to explore the transmission process and mechanism of chloride ion in concrete through theoretical simulation on the basis of experimental research.This paper summarizes the related models of chloride ion migration,points out the advantages and disadvantages of the existing models,and looks forward to the research direction of chloride ion migration models.

关 键 词：混凝土耐久性 氯离子传输模型 宏/细观尺度 

分 类 号：TU528.01[建筑科学—建筑技术科学]