电容层析成像技术及其在水泥基材料领域的应用  

Electrical Capacitance Tomography and Its Application in the Field of Cement-based Materials

作　　者：王文涛 张鹏[1,2] 高凯凯[1] 赵铁军 WANG Wentao;ZHANG Peng;GAO Kaikai;ZHAO Tiejun(School of Civil Engineering,Qingdao University of Technology,Qingdao 266033,China;Cooperative Innovation Center of Engineering Construction and Safety in Shandong Blue Economic Zone,Qingdao University of Technology,Qingdao 266033,China)

机构地区：[1]青岛理工大学土木工程学院,青岛266033 [2]青岛理工大学蓝色经济区工程建设与安全山东省协同创新中心,青岛266033

出　　处：《硅酸盐通报》2020年第7期2042-2051,共10页Bulletin of the Chinese Ceramic Society

基　　金：国家自然科学基金(51922052,51778309,51908307,U1706222);山东省自然科学基金(ZR2018JL018);源头创新计划(10-6-2-7-cg)。

摘　　要：水泥基材料的耐久性直接取决于水分和有害介质的侵入速度,因此基于可视化技术对水分传输过程进行动态监测、量化分析具有重要意义。电容层析成像技术(ECT)是一种基于电容敏感机理的层析成像技术,具有非侵入性、响应速度快、适用范围广、成本低、无辐射、便携等优点。将ECT技术应用于水泥基材料内部物质传输规律的研究中,有利于更加准确客观地评价水泥基材料的耐久性。本文系统介绍了ECT系统的组成及原理,以及国内外关于ECT技术的研究与应用进展,在此基础上分析讨论了ECT技术在水泥基材料研究领域的发展趋势和前景。The durability of cement-based materials depends on the moisture and harmful media transmission rate.Therefore,performing dynamic monitoring and quantitative analysis of moisture transmission in such materials based on visualisation technology is essential.Electrical capacitance tomography(ECT)is a type of computed tomography technology based on capacitance sensitivity mechanism and has advantages such as being non-invasive,inexpensive and portable as well as having fast response,wide application range and no radiation.Accurate and objective evaluation of the durability of cement-based materials can be efficiently performed by applying ECT technology to study materials intrinsic properties.This paper systematically introduces the composition and principle of ECT systems and discusses the global developments in research and applications of ECT.Based on the results,future development trends and prospects related to the use of ECT in the field of cement-based materials research are presented.

关 键 词：水泥基材料 耐久性 电容层析成像(ECT) 

分 类 号：TU528[建筑科学—建筑技术科学]