摘要
水是混凝土中不可缺少的重要组分,硬化混凝土内部水含量的变化及其运动对混凝土耐久性能有重要的影响。混凝土的劣化过程与水有关,水既是侵蚀物质进入混凝土的载体,又是劣化过程发生的必要条件和许多失效机理与模型建立的基础。分析了水分在硬化混凝土中的存在方式、水(溶液)在混凝土中的运动规律,讨论了水分对混凝土耐久性等诸方面的作用及影响。
Water is an important component in concrete.Water content and its migration inside concrete structure have a significant influence on the durability of concrete structure.The deterioration of concrete has a close relation with water.Water is not only a carrier of corrosive agents which penetrate concrete matrix from out environments,but also a prerequisite for concrete deterioration and base for building a model of damage mechanism.The water state in hardened concrete and the rule of water solution migration were discussed,and also the influence on the durability of concrete.
出处
《混凝土》
CAS
CSCD
北大核心
2008年第2期76-78,共3页
Concrete
基金
国家自然科学基金资助项目:大气与冻融环境混凝土结构耐久性及其对策的基础研究(50538060)
关键词
水
混凝土
耐久性
物理作用
化学作用
water
concrete
durability
physical effects
chemical reaction
