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Effect of Carbon Nanotubes’ Diameter on Freeze-Thaw Resistance of Cement Paste
| Content Provider | Scilit |
|---|---|
| Author | Tian, Wei Gao, Fangfang |
| Copyright Year | 2020 |
| Description | This paper aims to investigate the freeze-thaw resistance of cement-paste containing with different diameter and content of multiwalled carbon nanotubes (MWCNTs) in terms of mechanical properties and microstructure. Three groups of cement-paste with MWCNTs diameter of 10-20 nm, 20-40 nm and 40-60 nm were prepared by incorporating 0.1 wt%, 0.2 wt%, 0.3 wt%, 0.4 wt%, 0.5 wt% MWCNTs by cement weight. Experimental results showed that the addition of 0.1 wt% MWCNTs with diameters of 10–20 nm effectively improved the freeze-thaw resistance of cement-paste. In addition, microstructural analysis of these cement-paste specimens showed that MWCNTs addition increased the materials’ initial porosity, but a proper amount of MWCNTs decreased the porosity of cement-paste after freeze-thaw cycles and effectively improved the pore size distribution. MWCNTs 10–20 nm in diameter were found to be the optimal size for improving the microstructure of these MWCNTs cement-paste |
| Related Links | https://www.cambridge.org/core/services/aop-cambridge-core/content/view/AE786F72FF6199E9816C15ACAB9B3B01/S1727719120000064a.pdf/div-class-title-effect-of-carbon-nanotubes-diameter-on-freeze-thaw-resistance-of-cement-paste-div.pdf |
| Ending Page | 449 |
| Page Count | 13 |
| Starting Page | 437 |
| DOI | 10.1017/jmech.2020.6 |
| Journal | Journal of Mechanics |
| Issue Number | 4 |
| Volume Number | 36 |
| Language | English |
| Publisher | Cambridge University Press (CUP) |
| Publisher Date | 2020-08-01 |
| Access Restriction | Open |
| Subject Keyword | Journal of Mechanics Characterization and Testing of Materials Mechanical Properties thaw Cycles Pore Structure |
| Content Type | Text |
| Resource Type | Article |
