硅酸盐通报2024，Vol.43Issue(11)：3935-3946,3967,13.
混凝土氯盐-硫酸盐耦合侵蚀机理、模型及数值模拟研究进展
Research Progress on Chloride-Sulfate Coupling Erosion Mechanism,Model and Numerical Simulation of Concrete
摘要
Abstract
In coastal and inland saline soil environments,reinforced concrete structures are susceptible to coupling erosion of chloride-sulfate,and face more prominent structural durability problems.While experimental and numerical model research is abundant on the erosion process of reinforced concrete caused by either chloride or sulfate alone.Studies on the coupling erosion by chloride-sulfate are relatively limited.Hence,this paper summarizes the research achievements from recent years both domestically and internationally,explores the differences in the mechanism of single salt erosion and chloride-sulfate erosion,and discusses the influence of sulfate ion on the diffusion rate and binding capacity of chloride ion.The existing coupling models for reinforced concrete subjected to chloride-sulfate composite environment are compared,and the construction process of erosion models are elaborated from three aspects:the ionic transport process,chemical reaction,and pore expansion.The currently applied numerical simulation methods are summarized.Finally,the current research on chloride-sulfate coupling erosion of reinforced concrete is reviewed,and an outlook for subsequent research is given.关键词
混凝土/氯盐/硫酸盐/耦合侵蚀/数值模拟方法Key words
concrete/chloride/sulfate/coupling erosion/numerical simulation method分类
建筑与水利引用本文复制引用
李国满,李浩然,邱国斌,黎俊伶,张瑞..混凝土氯盐-硫酸盐耦合侵蚀机理、模型及数值模拟研究进展[J].硅酸盐通报,2024,43(11):3935-3946,3967,13.基金项目
防灾减灾湖北省重点实验室(三峡大学)开放基金(2023KJZ12) （三峡大学）
