摘要
本文综述了多种因素环境下混凝土耐久性研究的现状和进展。主要探讨了氯盐和硫酸盐双因素对混凝土的侵蚀机制、荷载与盐环境共同作用对混凝土耐久性的影响、杂散电流和水压力作用对混凝土结构的腐蚀和耐久性影响。总结了侵蚀性离子在混凝土中的迁移行为及其相互作用,分析了腐蚀环境及荷载耦合条件下混凝土的力学性能和腐蚀规律,阐述了杂散电流和高水压作用对混凝土微结构和渗透特性的影响,最后,对该领域未来的重点研究方向以及耐久性研究成果在实际工程中的应用提出了建议与展望。
This paper reviews the current status and progress of research on the durability of concrete under multi-factor environments.It primarily explores the erosion mechanisms of concrete under the combined effects of chloride and sulfate ions,the impact of combined load and salt environments on concrete durability,the corrosion effects of stray currents on concrete structures,and the influence of high hydrostatic pressure on concrete durability.The study summarizes the migration behavior and interactions of different ions within concrete,analyzes the mechanical properties and corrosion patterns of concrete under various environmental and load conditions,and elaborates on the effects of stray currents and high hydrostatic pressure on the microstructure and permeability of concrete.Finally,it provides recommendations and outlooks on future key research directions and the practical engineering applications of durability research outcomes in this field.
作者
张硕
唐孟雄
胡贺松
苏定立
ZHANG Shuo;TANG Meng-xiong;HU He-song;SU Ding-li(Guangzhou Institute of Building Science Group Co.,Ltd.,Guangzhou 510440;Guangzhou Construction Co.,Ltd.,Guangzhou 510030;Guangzhou Jianyan Engineering Technology Co.,Ltd.,Guangzhou 510440)
出处
《广州建筑》
2024年第8期103-108,共6页
GUANGZHOU ARCHITECTURE
基金
广州市建筑集团有限公司科技计划项目([2024]-KJ045、[2022]-KJ005)。
关键词
多因素
盐环境
杂散电流
高水压
混凝土
耐久性
multiple factors
salt environment
stray current
high hydrostatic pressure
concrete
durability