Compressive Strength and Microstructure of Multi-Wall Carbon Nanotubes Reinforced Cement Composites
| Periodical | Advanced Materials Research (Volumes 450 - 451) |
|---|---|
| Main Theme | Trends in Building Materials Research |
| Edited by | Jianjun Zheng, Xiuli Du, Weiming Yan, Yue Li and Jianwei Zhang |
| Pages | 594-599 |
| DOI | 10.4028/www.scientific.net/AMR.450-451.594 |
| Citation | Jin Tao Liu et al., 2012, Advanced Materials Research, 450-451, 594 |
| Online since | January, 2012 |
| Authors | Jin Tao Liu, Dong Ming Yan, Shi Lang Xu |
| Keywords | Cement Composites, Mechanical Strength, Microstructure, Multi-Walled Carbon Nanotube (MWCNT) |
| Price | US$ 28,- |
Advancement in the study of carbon nanotube has enabled its application in civil engineering as constitutive materials or additives. In this study, the availability of applying multi-walled carbon nanotube to improve the characteristics of cement composites was investigated with experiments on more than 30 specimens. The multi-walled carbon nanotubes (MWCNTs) were effectively dispersed in the water with surfactant, which can keep stable for over 3 months. Specimens with MWCNTs of 0.025%, 0.05% and 0.1% of cement (by weight) were tested with a loading machine and then analyzed with a SEM. It was found that the compressive strength of the samples increased with the increasing MWCNTs, it can improve the 7-day compressive strength by 22% . Microscopic analysis (SEM) revealed that carbon nanotubes were surrounded with hydration products. The bridging and debonding of carbon nanotubes in cement pastes was observed as well.
