Original title: Early stage microstructure development of cement paste modified by crystalline admixture
Authors: Hrbek, V. ; Petráňová, Veronika ; Němeček, J.
Document type: Papers
Conference/Event: International Conference on Special Concrete and Composite /13./, Skalsky Dvur (CZ), 20161013
Year: 2017
Language: eng
Abstract: This paper deals with the effect of crystalline admixture (CA) on the microstructure of the cementitious composite in first four weeks after the production. Previous investigation was performed on reference specimens consisting of pure cement. Samples of pure CA and cement modified by 1% of CA with the same w/c ratio were examined and compared in this paper. By investigation of these materials on the micro-scale, it is possible to identify the development of the microstructure of each and determine the impact of the modification. For this purpose, backscattered electrons microscopy (BSE) with energy-dispersive X-ray spectroscopy (EDX) was used for phase analysis as well as instrumental nano-indentation to obtain micro-mechanical properties. Presented results show the evolution of mechanical properties and microstructure in time and the impact of the crystalline admixture on modified cement.
Keywords: cement; crystalline admixture; microstructure; nanoindentation; phase; SEM
Host item entry: Key Engineering Materials, ISBN 978-3-0357-1079-3, ISSN 1013-9826
Note: Související webová stránka: https://www.scientific.net/KEM.722.92

Institution: Institute of Theoretical and Applied Mechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0271346

Permalink: http://www.nusl.cz/ntk/nusl-373361


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Research > Institutes ASCR > Institute of Theoretical and Applied Mechanics
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