Influences of CNT dispersion and pore characteristics on the electrical performance of cementitious composites

Title
Influences of CNT dispersion and pore characteristics on the electrical performance of cementitious composites
Authors
양범주김광목조강진김은미이행기
Keywords
Cementitious composites incorporating CNT; Electrical conductivity; Air porosity; CNT dispersion; Micromechanics-based modeling
Issue Date
2017-03
Publisher
Composite structures
Citation
VOL 164-42
Abstract
In the present study, cementitious composite incorporating a carbon nanotube (CNT) with highly improved electrical conductivity comparable to that of a semiconductor is developed and investigated. The CNT and pore characteristics within a cementitious matrix are considered as the most influential factors which determine the overall performance of the material, and these factors are artificially controlled by incorporating silica fume and a superplasticizer. Additionally, a micromechanics-based model is proposed to predict the electrical performance and percolation threshold of the composites. A parametric study based on the developed model is conducted, and the influences of the constituent properties on the overall electrical characteristics of composites are discussed. The effectiveness of the proposed hypothesis is demonstrated by comparing it to the experimental results in the present study and from the previous work.
URI
http://pubs.kist.re.kr/handle/201004/65281
ISSN
0263-8223
Appears in Collections:
KIST Publication > Article
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