Materials | |
Investigation on the Mechanical Properties of a Cement-Based Material Containing Carbon Nanotube under Drying and Freeze-Thaw Conditions | |
Wei-Wen Li2  Wei-Ming Ji2  Yao-Cheng Wang2  Yi Liu2  Ruo-Xu Shen1  Feng Xing2  | |
[1] Shenzhen Graduate School of Harbin Institute of Technology, Shenzhen 518055, China;Guangdong Key Provincial Durability Center for Marine Structure, Shenzhen Durability Center for Civil Engineering, Department of Civil Engineering, Shenzhen University, Shenzhen 518060, China; | |
关键词: carbon nanotube (CNT); cement-based material; mechanical property; durability; drying; freeze-thaw; | |
DOI : 10.3390/ma8125491 | |
来源: mdpi | |
【 摘 要 】
This paper aimed to explore the mechanical properties of a cement-based material with carbon nanotube (CNT) under drying and freeze-thaw environments. Mercury Intrusion Porosimetry and Scanning Electron Microscopy were used to analyze the pore structure and microstructure of CNT/cement composite, respectively. The experimental results showed that multi-walled CNT (MWCNT) could improve to different degrees the mechanical properties (compressive and flexural strengths) and physical performances (shrinkage and water loss) of cement-based materials under drying and freeze-thaw conditions. This paper also demonstrated that MWCNT could interconnect hydration products to enhance the performance of anti-microcracks for cement-based materials, as well as the density of materials due to CNT’s filling action.
【 授权许可】
CC BY
© 2015 by the authors; licensee MDPI, Basel, Switzerland.
【 预 览 】
Files | Size | Format | View |
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RO202003190001640ZK.pdf | 2740KB | download |