混凝土损伤对氯离子渗透性影响研究综述  

REVIEW OF EFFECTS OF CONCRETE DAMAGE ON CHLORIDE PERMEABILITY

作　　者：李芳[1] 

机构地区：[1]同济大学土木工程学院水利工程系,上海200092

出　　处：《低温建筑技术》2017年第5期7-10,共4页Low Temperature Architecture Technology

摘　　要：混凝土在服役过程中要承受荷载和环境的双重作用。应力水平以及冻融循环作用对混凝土结构会造成损伤,形成微裂缝,从而加速了氯离子入侵的速度。本文总结了应力大小和应力类型对氯离子渗透性能的影响,以及冻融循环作用下氯离子渗透性的变化规律。最后提出了一些建议和以后的研究方向。During its service period, concrete should bear the coupling effect of load and environ- ment. Stress level and freeze-thaw cycle cause the damage of concrete structure, and thereby the forma- tion of micro-cracks accelerates the rate of chloride intrusion. In this paper, the effects of the magnitude and type of stress on chloride ion permeability were discussed, and then, the change of chloride ion per- meability caused by freezing and thawing cycles were summarized. Finally, some suggestions and future research directions were put forward.

关 键 词：混凝土 损伤 氯离子 渗透性 

分 类 号：TU528.0[建筑科学—建筑技术科学]