Origin of Sensing Property of Self-monitoring CNT Cementitious Composite

摘要：

　　Owing to its outstanding sensing property, mechanical property and durability, self-monitoring carbon nanotubes (CNTs) cementitious composite can serve as an intrinsic smart sensor for structural health monito ring and traffic detection.However, it is not clear at present what is the origin of sensing property of the self monitoring CNTs cementitious composite.This paper discusses the nature of sensing property of the compos ite measured with DC and AC circuits based on a commonly-used conductive model of CNTs cementitious composite, and reveals the origin of sensing property of the composite through experiments.Experimental re sults indicate that the sensing property of the composite mainly results from the change in contact resistance between adjacent CNTs under external force or deformation.

作者: Shengwei Sun Baoguo Han Jinping Ou

作者单位: School of Civil Engineering, Harbin Institute of Technology, Harbin, China School of Civil Engineering, Dalian University of Technology, Dalian, China School of Civil Engineering, Harbin Institute of Technology, Harbin, China; School of Civil Engineer

会议类型: 国际会议

会议名称: The 5th International Symposium on Innovation & Sustainability of Structures in Civil Engineering (ISISS2013)(第五届创新和可持续发展土木工程结构国际学术研讨会)

会议地点: 哈尔滨

会议语种:英文

页码: 255-259

在线出版日期: 2013-07-06（万方平台首次上网日期，不代表论文的发表时间）