Mechanical and Self-Sensing Properties of Multiwalled Carbon Nanotube-Reinforced ECCs
This paper investigates the effect of type and dosage of multiwalled carbon nanotubes (MWCNTs) on the mechanical and self-sensing properties of engineered cementitious composites (ECCs). Two types of MWCNTs (MWCNTa and MWCNTb) were employed. The tensile and flexural strengths of CNT-reinforced ECCs...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2019/2646012 |
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| author | Chuanbo Liu Guozhen Liu Zhi Ge Yanhua Guan Zhiyong Cui Jian Zhou |
| author_facet | Chuanbo Liu Guozhen Liu Zhi Ge Yanhua Guan Zhiyong Cui Jian Zhou |
| author_sort | Chuanbo Liu |
| collection | DOAJ |
| description | This paper investigates the effect of type and dosage of multiwalled carbon nanotubes (MWCNTs) on the mechanical and self-sensing properties of engineered cementitious composites (ECCs). Two types of MWCNTs (MWCNTa and MWCNTb) were employed. The tensile and flexural strengths of CNT-reinforced ECCs were improved compared with normal ECCs, while the ultimate tensile strain and midspan deflection were reduced. Compared with the dosage of MWCNTs, the type had less effect on these properties. The percolation threshold was around 0.3 wt.%. ECCs containing MWCNTs had good self-sensing ability under different loading conditions. When the midspan deflection increased from 0.1 to 0.6 mm, the fractional change in resistivity reached 9%. The dosage of MWCNTs had a significant effect on the self-sensing ability. As the MWCNT content increased, the amplitude of fractional change in resistivity decreased. |
| format | Article |
| id | doaj-art-e269f2c8cdcd4d03a5483e4221bbf9a3 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-e269f2c8cdcd4d03a5483e4221bbf9a32025-02-03T01:24:23ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422019-01-01201910.1155/2019/26460122646012Mechanical and Self-Sensing Properties of Multiwalled Carbon Nanotube-Reinforced ECCsChuanbo Liu0Guozhen Liu1Zhi Ge2Yanhua Guan3Zhiyong Cui4Jian Zhou5Jinan Highway Administration, Jinan 2500123, ChinaZhangqiu Highway Administration, Jinan 250200, ChinaSchool of Qilu Transportation, Shandong University, Jinan 250002, ChinaSchool of Qilu Transportation, Shandong University, Jinan 250002, ChinaTaian Department of Transportation, Taian 271000, ChinaSchool of Qilu Transportation, Shandong University, Jinan 250002, ChinaThis paper investigates the effect of type and dosage of multiwalled carbon nanotubes (MWCNTs) on the mechanical and self-sensing properties of engineered cementitious composites (ECCs). Two types of MWCNTs (MWCNTa and MWCNTb) were employed. The tensile and flexural strengths of CNT-reinforced ECCs were improved compared with normal ECCs, while the ultimate tensile strain and midspan deflection were reduced. Compared with the dosage of MWCNTs, the type had less effect on these properties. The percolation threshold was around 0.3 wt.%. ECCs containing MWCNTs had good self-sensing ability under different loading conditions. When the midspan deflection increased from 0.1 to 0.6 mm, the fractional change in resistivity reached 9%. The dosage of MWCNTs had a significant effect on the self-sensing ability. As the MWCNT content increased, the amplitude of fractional change in resistivity decreased.http://dx.doi.org/10.1155/2019/2646012 |
| spellingShingle | Chuanbo Liu Guozhen Liu Zhi Ge Yanhua Guan Zhiyong Cui Jian Zhou Mechanical and Self-Sensing Properties of Multiwalled Carbon Nanotube-Reinforced ECCs Advances in Materials Science and Engineering |
| title | Mechanical and Self-Sensing Properties of Multiwalled Carbon Nanotube-Reinforced ECCs |
| title_full | Mechanical and Self-Sensing Properties of Multiwalled Carbon Nanotube-Reinforced ECCs |
| title_fullStr | Mechanical and Self-Sensing Properties of Multiwalled Carbon Nanotube-Reinforced ECCs |
| title_full_unstemmed | Mechanical and Self-Sensing Properties of Multiwalled Carbon Nanotube-Reinforced ECCs |
| title_short | Mechanical and Self-Sensing Properties of Multiwalled Carbon Nanotube-Reinforced ECCs |
| title_sort | mechanical and self sensing properties of multiwalled carbon nanotube reinforced eccs |
| url | http://dx.doi.org/10.1155/2019/2646012 |
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