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HomeKey Engineering MaterialsKey Engineering Materials Vols. 629-630Research Progress on Carbon Nanotubes Reinforced...

Research Progress on Carbon Nanotubes Reinforced Cement-Based Materials

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Abstract:

For their remarkable properties, carbon nanotubes (CNTs) are considered as promising candidate for next generation of high performance and functional cement-based composites in 21st century. The paper focuses on the dispersibility, mechanical property, durability, conductivity and piezoresistivity properties of CNTs reinforced cement-based materials. A homogenous CNTs-suspension was obtained using the method which combined ultrasonic processing with mechanical stirring, electric-field introduction and surfactant decoration. The low weight fraction of CNTs improved the mechanical properties of CNTs/cement composites. The compressive strength and toughness were correspondingly improved. The added CNTs improved the sulfate attack resistance and impermeability properties of the prepared CNTs/cement mixes. Meanwhile, the added CNTs improved the pressure-sensitive, conductivity and electromagnetic absorption properties of the prepared mixes, which laid a foundation of multi-functional concrete and structure. It concludes that the key issue for CNTs/cement composites is the dispersibility and the compatibility of CNTs in cement matrix. The solving solutions are put forward. In the meantime, the further research prospects in this research field are forecasted.

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Periodical:

Key Engineering Materials (Volumes 629-630)

Pages:

487-493

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.629-630.487

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Cite this paper

Online since:

October 2014

Authors:

Bao Min Wang, Shuai Liu*, Yu Han

Keywords:

Carbon Nanotubes (CNTs), Cement-Based Materials, Research Progress

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* - Corresponding Author

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