Nano-granular texture of cement hydrates
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epjconf162467.pdf
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Author(s)
Levitz, Pierre
Del Gado, Emanuela
Ioannidou, Aikaterini
Ulm, Franz-Josef
Pellenq, Roland Jm
Date Issued
June 2017
Journal
EPJ Web of Conferences
Publisher
EDP Sciences
Citation
Ioannidou, Katerina, et al. “Nano-Granular Texture of Cement Hydrates.” Edited by F. Radjai, S. Nezamabadi, S. Luding, and J.Y. Delenne. EPJ Web of Conferences 140 (2017): 15027 © 2017 The Authors, published by EDP Sciences
Version
Final published version
Abstract
Mechanical behavior of concrete crucially depends on cement hydrates, the "glue" of cement. The design of high performance and more environmentally friendly cements demands a deeper understanding of the formation of the multiscale structure of cement hydrates, when they precipitate and densify. We investigate the precipitation and setting of nano-grains of cement hydrates using a combination of Monte Carlo and Molecular Dynamics numerical simulations and study their texture from nano up to the micron scale. We characterize the texture of cement hydrates using the local volume fraction distribution, the pore size distribution, the scattering intensity and the chord length distribution and we compare them with experiments. Our nano-granular model provides cement structure with realistic texture and mechanics and can be further used to investigate degradation mechanisms. © 2017 The Authors, published by EDP Sciences
MIT Department
Massachusetts Institute of Technology. Department of Civil and Environmental Engineering
MultiScale Materials Science for Energy and Environment, Joint MIT-CNRS Laboratory
Terms of Use
Creative Commons Attribution 4.0 International License
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DOI of Published Version
https://doi.org/10.1051/EPJCONF/201714015027
