摘要
为了研究氯离子在混凝土孔结构中的渗透,采用理论分析和实验的方法,分析了Fick第二定律、考虑龄期和化学结合三种扩散模型,考察了实际大气中氯离子在混凝土结构中的渗透,结合当地的环境特征,通过拟合数据点,得出氯离子在实际混凝土结构中的渗透过程,研究结果表明,FICK第二定律的理论假设条件与实际混凝土材料的性质有所不同,数学解与实际混凝土的试验结果相差较大。研究结论有助于建立更准确的氯离子渗透模型。
To research the infiltration of chloride in concrete’s pore structure,with theoretical analysis and concrete experiments,Fick’s second law is analyzed.Chemical combination of the three diffusion models is considered and the infiltration of chloride ions in concrete structure in actual atmosphere is investigated then combining these with the local environmental characteristics,through the fitting data points,the actual infiltration process of chloride ions in real concrete structure is obtained.The results show that the theoretical assumptions of Fick’s second law are different from the characteristics of real concrete materials.The results got mathematically are quite different from the test results got from real concrete materials.The results of this research will help to build a more accurate chloride ions’ infiltration model.
出处
《辽宁工程技术大学学报(自然科学版)》
CAS
北大核心
2009年第S1期225-228,共4页
Journal of Liaoning Technical University (Natural Science)
基金
国家自然基金项目重点项目资助项目(50538060)
教育部新世纪优秀人才支持计划(NCET-05-0748)
关键词
渗透
孔结构
氯离子
混凝土
penetration
pore structure
chloride ion
concrete