摘要
钢筋锈蚀是混凝土结构破坏最重要的原因,而氯离子的侵蚀是引起钢筋锈蚀的最直接的原因。为了更好的描述氯离子在混凝土中的侵蚀规律。采用Hamilton型变分原理建立氯离子的输运模型。同时考虑吸附效应和时变特性对混凝土中氯离子输运行为的影响,并对采用不同吸附模型和时变特性的氯离子输运行为进行了对比。研究表明:吸附效应和时变特性都对氯离子的输运有着重要的影响。
The most important reason for the failure of concrete structures is reinforcement corrosion.The corrosion of chloride is the most direct cause of the reinforcement corrosion.Transport model of chloride is adopted by Hamilton principle.Adsorption effect and time variant characteristics are considered in the process of transport behavior of chloride in concrete.Transport behavior of chloride is compared by using different adsorption models time variant characteristics.The results show that the adsorption effect and time variant characteristics have a significant effect on the chloride transport.
出处
《混凝土》
CAS
北大核心
2017年第3期29-32,共4页
Concrete
基金
国家自然科学基金资助项目(50908059)
黑龙江省自然科学基金资助项目(E201415)
中央高校基本科研业务费专项资金资助项目(HEUCF160207)
关键词
吸附效应
时变特性
氯离子输运
adsorption effect
time variant characteristics
chloride transport
