摘要
介绍了一种基于Fick扩散定律测定水泥基材料氧气扩散系数的方法及装置。该装置包括供气系统、试件、左右气体腔室、传感测试系统、数据采集系统。该装置密封性好,操作简便,数据真实可靠,且试验过程中氧气扩散的驱动力仅为浓度梯度,可真正测出氧气在水泥基材料试件中的扩散系数,适用于不同孔隙率的水泥基材料氧气扩散系数的测定并为进一步研究氧气对水泥基材料中的钢筋锈蚀研究提供数据基础。
The method and testing device for determining the oxygen diffusion coefficient of cement-based material based on Fick diffusion law are introduced.This device includes an air supply system,testing piece,left and right gas chamber,sensing test system and data acquisition system.This device has good sealing performance,convenient operation and reliable data.The driving force of oxygen diffusion in the experiment is only the concentration gradient,which can measure the oxygen diffusion coefficient in the cement-based material.It is suitable for determining the oxygen diffusion coefficient of cement-based material with the different porosity,providing a data basis for the further study of oxygen corrosion of reinforcement in cementbased material.
作者
周露泉
金南国
付传清
Zhou Luquan;Jin Nanguo;Fu Chuanqing(College of Architectural Engineering,Zhejiang University,Hangzhou 310058,China;College of Architectural Engineering,Zhejiang University of Technology,Hangzhou 310014,China)
出处
《实验技术与管理》
CAS
北大核心
2018年第7期117-120,共4页
Experimental Technology and Management
基金
国家自然科学基金项目(51320105013
51678529
51378012)资助
关键词
水泥基材料
扩散系数
测定装置
锈蚀
cement-based material
diffusion coefficient
testing device
corrosion