Utilization of carbon nanotubes (CNTs) in concrete for structural health monitoring (SHM) purposes: A review

被引：81

作者：

Siahkouhi, Mohammad ^{[1
]}

Razaqpur, Ghani ^{[2
]}

Hoult, N. A. ^{[3
]}

Baghban, Mohammad Hajmohammadian ^{[4
]}

Jing, Guoqing ^{[1
]}

机构：

[1] Beijing Jiaotong Univ, Sch Civil Engn, Beijing 100044, Peoples R China

[2] Nankai Univ, Coll Environm Sci & Engn, Tianjin, Peoples R China

[3] Queens Univ, Dept Civil Engn, 58 Univ Ave, Kingston, ON K7L 3N6, Canada

[4] Norwegian Univ Sci & Technol NTNU, Dept Mfg & Civil Engn, N-2815 Gjovik, Norway

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2021年 / 309卷 / 309期

关键词：

Concrete; Cement composite; Structural health monitoring; Self-sensing property; Self-healing; Infrastructure; Carbon Nanotube; CEMENT-MATRIX COMPOSITES; SELF-SENSING CONCRETE; MECHANICAL-PROPERTIES; PIEZORESISTIVE RESPONSE; ELECTRICAL-PROPERTIES; DISPERSION; MICROSTRUCTURE; FIBER; STRENGTH; BEHAVIOR;

D O I：

10.1016/j.conbuildmat.2021.125137

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Carbon nanotubes (CNT) as a functional filler can increase the electrical conductivity property of concrete and thus provide intrinsic self-sensing properties with no need for external sensors to monitor the behavior of concrete infrastructure and structures containing CNT. CNT-cement composites also improve mechanical strength and have higher energy absorption capacity. The sensitivity of their electrical conductivity to external physical parameters, such as strain, stress, load, temperature, displacement, and pressure, makes them suitable for structural health monitoring (SHM) applications. This paper presents a comprehensive review of the CNT properties, fabrication process, composition, and sensing characteristics as well as challenges for applying CNT concrete as part of a self-sensing structure. Furthermore, the self-healing property of CNT, as an integral feature of future smart concrete infrastructure is discussed.

引用

页数：14

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