Microstructure of Lightweight and Decorative Renders with Modified Composition

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Abstract:

Within the research presented in this article the attention was paid to the study of microstructure of lightweight and decorative renders. The composition of these renders was modified using alternative raw materials in amount of 5 % substituting the finest aggregate fractions. For evaluation of microstructure and its changes the combination of three methods SEM, XRD and DTA was used. Samples for the analysis were prepared from 90-day old specimens. The reason was the evaluation of material structural changes within the mid-term scale because considering the character and amount of used raw materials including the results of physical-mechanical tests no more significant changes were assumed in a short-term period. The performed analyses showed only inessential changes in microstructure of modified materials in comparison with the results of physical-mechanical tests.

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142-146

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April 2015

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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[1] Melichar, T., Bydžovský, J. Omítky s dekorativní funkcí modifikovaného složení. Construction Materials. Ostrava: Vysoká škola báňská - Technická univerzita Ostrava, 2014. pp.214-220. ISBN: 978-80-248-3381- 1.

DOI: 10.15584/eti.2018.4.48

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[2] Melichar, T., Bydžovský, J., Žižková, N. Specifické zkoušky parametrů omítek s dekorativní funkcí modifikovaného složení. Construction Materials. Ostrava: Vysoká škola báňská - Technická univerzita Ostrava, 2014. s. 241-246. ISBN: 978-80-248-3381- 1.

DOI: 10.15584/eti.2018.4.48

Google Scholar