摘要
准确测定混凝土的连通孔隙率是预测混凝土抵抗侵蚀介质传输能力的关键。采用非接触式阻抗法测定混凝土连通孔隙率,该方法通过测定混凝土试件的电阻率得到连通孔隙率。该装置由离子迁移系统、电阻率测定系统和数据处理系统组成,突破了传统测试方法对试样大小的限制,既适用于室内新拌制的混凝土,也可用于既有建筑结构钻芯取样混凝土连通孔隙率测试。
Accurate determination of the connectivity porosity of concrete is the key to predict the transmission capacity of concrete against erosion media, and the non-contact impedance method is used to measure the concrete connected porosities. The connected porosity is obtained by measuring resistivity of concrete specimens, and the device consists of the ion migration system, resistivity measurement system and data processing system. This method and device break through the limitation of sample size in traditional testing methods, and it can be used not only for indoor fresh concrete, but also for connecting porosity test of drill core sampling concrete of existing building structures.
作者
刘承斌
付传清
金贤玉
LIU Chengbin;FU Chuanqing;JIN Xianyu(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
2019年第11期65-67,88,共4页
Experimental Technology and Management
基金
国家自然科学基金项目(51678529)资助
关键词
混凝土
连通孔隙率
实验装置
非接触式阻抗法
电阻率
concrete
connected porosity
experimental device
non-contact impedance method
resistivity
作者简介
刘承斌(1978—),男,浙江东阳,博士,高级工程师,从事结构试验方面的研究工作。E-mail:cb@zju.edu.cn;通信作者:付传清(1982—),男,山东潍坊,博士,副教授,研究方向为混凝土结构耐久性。E-mail:chuanqingfu@126.com。
