Effect of characteristics of assembly unit of CNT/NCB composite fillers on properties of smart cement-based materials

Liqing Zhang; Siqi Ding; Linwei Li; Sufen Dong; Danna Wang; Xun Yu; Baoguo Han

doi:10.1016/j.compositesa.2018.03.020

Effect of characteristics of assembly unit of CNT/NCB composite fillers on properties of smart cement-based materials

Liqing Zhang, Siqi Ding, Linwei Li, Sufen Dong, Danna Wang, Xun Yu, Baoguo Han

Research output: Journal article publication › Journal article › Academic research › peer-review

96 Citations (Scopus)

Abstract

Electrostatic self-assembled CNT/NCB composite fillers with high CNT aspect ratio and large NCB size is incorporated into cement-based materials to develop smart cement-based composites. The mechanical, electrical and piezoresistive properties of the cement-based materials with CNT/NCB composite fillers are investigated. Percolation equation is used to describe electrically conductive property. Electrochemical impedance spectroscopy and equivalent circuits are used to explore the conductive and mechanical mechanism. The research results show that cement-based materials with CNT/NCB composite fillers at low content present acceptable mechanical property, high conductive property and stable and sensitive piezoresistive property. The fractional change of electrical resistivity, stress and strain sensitivity of cement-based materials with 1.41 vol.% CNT/NCB composite fillers can reach 13.4%, 3.12%/MPa and 521, respectively. It is concluded that high CNT aspect ratio and large NCB size in CNT/NCB composite fillers are beneficial for improving the properties of smart cement-based composites.

Original language	English
Pages (from-to)	303-320
Number of pages	18
Journal	Composites Part A: Applied Science and Manufacturing
Volume	109
DOIs	https://doi.org/10.1016/j.compositesa.2018.03.020
Publication status	Published - Jun 2018

Keywords

A. Multifunctional composites
A. Smart materials
B. Electrical properties
E. Assembly

ASJC Scopus subject areas

Ceramics and Composites
Mechanics of Materials

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10.1016/j.compositesa.2018.03.020

Cite this

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title = "Effect of characteristics of assembly unit of CNT/NCB composite fillers on properties of smart cement-based materials",

abstract = "Electrostatic self-assembled CNT/NCB composite fillers with high CNT aspect ratio and large NCB size is incorporated into cement-based materials to develop smart cement-based composites. The mechanical, electrical and piezoresistive properties of the cement-based materials with CNT/NCB composite fillers are investigated. Percolation equation is used to describe electrically conductive property. Electrochemical impedance spectroscopy and equivalent circuits are used to explore the conductive and mechanical mechanism. The research results show that cement-based materials with CNT/NCB composite fillers at low content present acceptable mechanical property, high conductive property and stable and sensitive piezoresistive property. The fractional change of electrical resistivity, stress and strain sensitivity of cement-based materials with 1.41 vol.% CNT/NCB composite fillers can reach 13.4%, 3.12%/MPa and 521, respectively. It is concluded that high CNT aspect ratio and large NCB size in CNT/NCB composite fillers are beneficial for improving the properties of smart cement-based composites.",

keywords = "A. Multifunctional composites, A. Smart materials, B. Electrical properties, E. Assembly",

author = "Liqing Zhang and Siqi Ding and Linwei Li and Sufen Dong and Danna Wang and Xun Yu and Baoguo Han",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",

year = "2018",

month = jun,

doi = "10.1016/j.compositesa.2018.03.020",

language = "English",

volume = "109",

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journal = "Composites Part A: Applied Science and Manufacturing",

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T1 - Effect of characteristics of assembly unit of CNT/NCB composite fillers on properties of smart cement-based materials

AU - Zhang, Liqing

AU - Ding, Siqi

AU - Li, Linwei

AU - Dong, Sufen

AU - Wang, Danna

AU - Yu, Xun

AU - Han, Baoguo

PY - 2018/6

Y1 - 2018/6

N2 - Electrostatic self-assembled CNT/NCB composite fillers with high CNT aspect ratio and large NCB size is incorporated into cement-based materials to develop smart cement-based composites. The mechanical, electrical and piezoresistive properties of the cement-based materials with CNT/NCB composite fillers are investigated. Percolation equation is used to describe electrically conductive property. Electrochemical impedance spectroscopy and equivalent circuits are used to explore the conductive and mechanical mechanism. The research results show that cement-based materials with CNT/NCB composite fillers at low content present acceptable mechanical property, high conductive property and stable and sensitive piezoresistive property. The fractional change of electrical resistivity, stress and strain sensitivity of cement-based materials with 1.41 vol.% CNT/NCB composite fillers can reach 13.4%, 3.12%/MPa and 521, respectively. It is concluded that high CNT aspect ratio and large NCB size in CNT/NCB composite fillers are beneficial for improving the properties of smart cement-based composites.

AB - Electrostatic self-assembled CNT/NCB composite fillers with high CNT aspect ratio and large NCB size is incorporated into cement-based materials to develop smart cement-based composites. The mechanical, electrical and piezoresistive properties of the cement-based materials with CNT/NCB composite fillers are investigated. Percolation equation is used to describe electrically conductive property. Electrochemical impedance spectroscopy and equivalent circuits are used to explore the conductive and mechanical mechanism. The research results show that cement-based materials with CNT/NCB composite fillers at low content present acceptable mechanical property, high conductive property and stable and sensitive piezoresistive property. The fractional change of electrical resistivity, stress and strain sensitivity of cement-based materials with 1.41 vol.% CNT/NCB composite fillers can reach 13.4%, 3.12%/MPa and 521, respectively. It is concluded that high CNT aspect ratio and large NCB size in CNT/NCB composite fillers are beneficial for improving the properties of smart cement-based composites.

KW - A. Multifunctional composites

KW - A. Smart materials

KW - B. Electrical properties

KW - E. Assembly

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U2 - 10.1016/j.compositesa.2018.03.020

DO - 10.1016/j.compositesa.2018.03.020

M3 - Journal article

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VL - 109

SP - 303

EP - 320

JO - Composites Part A: Applied Science and Manufacturing

JF - Composites Part A: Applied Science and Manufacturing

ER -

Effect of characteristics of assembly unit of CNT/NCB composite fillers on properties of smart cement-based materials

Abstract

Keywords

ASJC Scopus subject areas

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