Journal
CEMENT & CONCRETE COMPOSITES
Volume 33, Issue 4, Pages 457-465Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.cemconcomp.2011.01.006
Keywords
Statistical nanoindentation; Focussed-ion beam nanotomography; Cement paste; Microstructure
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In this paper we proceed in the examination of different aspects of the application of statistical nanoindentation to hydrated cement pastes for determining the mechanical properties of the single phases. In particular, we evaluate the size of the uniform domains of hydration products in a volume of cement paste obtained by Focussed-Ion Beam Nanotomography and we show that the uniform domains are too small to origin separate peaks in the frequency plots. Finally, we show that the procedure of fitting the frequency plots by Gaussian distributions of different sizes is not robust and heavily relies on assumptions about the elastic properties of the different phases. (C) 2011 Elsevier Ltd. All rights reserved.
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