| Issue |
E3S Web Conf.
Volume 212, 2020
2020 International Conference on Building Energy Conservation, Thermal Safety and Environmental Pollution Control (ICBTE 2020)
|
|
|---|---|---|
| Article Number | 02013 | |
| Number of page(s) | 8 | |
| Section | Construction | |
| DOI | https://doi.org/10.1051/e3sconf/202021202013 | |
| Published online | 26 November 2020 | |
Nanoindentation of cement stone samples
1
Belarusian National Technical University, 220013, Nezavisimosty Ave., 65, Minsk, Belarus
2
Vienna University of Technology, A-1040, Karlsplatz 13, Vienna, Austria
* Corresponding author: grushevskay_en@tut.by
The preliminary results of the studied cement samples were obtained by the nanoindentation method. It was revealed that the elastic modulus M increases in samples that contain a complex additive containing nanosized particles. The effect is also observed with the introduction of an additive containing only one type of nanoparticles (nanosilica sol SiO2 or carbon nanomaterial MCNT). The selection of the parameters of the nanoindentation method, which ensured the obtaining of the final consistent results, was performed. These results are presented by histograms of the distribution of nanoindentation points in modulus of elasticity M and hardness H and distributions in M and H in the horizontal XY plane perpendicular to the motion of the nanoindentor. The results obtained indicate that there is a change in the nanostructure of the C – S – H gel, which is compared with an increase in strength, Young’s moduli and shear, upon the introduction of SiO2 nanoparticles and MCNT nanoparticles.
Key words: complex nanodispersed additive / nanoindentation method / cement samples
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.