MATEC Web Conf.
Volume 163, 2018MATBUD’2018 – 8th Scientific-Technical Conference on Material Problems in Civil Engineering
|Number of page(s)||6|
|Section||Durability and Environmental Impact|
|Published online||15 June 2018|
The influence of metahalloysite addition on tobermorite formation studied by X-ray powder diffraction and scanning electron microscope
Institute of Ceramics and Building Materials, Division of Glass and Building Materials in Cracow, Cementowa Str. 8, Cracow 31-983, Poland
* Corresponding author: email@example.com
This paper presents the results of the studies carried out in the model systems and concerning the tobermorite synthesis with an addition of metahalloysite. Quartz sand and quicklime were the main raw material constituents. The mixtures in the form of slurries underwent hydrothermal treatment with an addition of metahalloysite (5%, 10%, 15%, 20% and 30%) for 4 hours and 12 hours. The resultant composites were analysed for their phase composition using X-ray powder diffraction. The microstructure was examined using the Scanning Electron Microscope. Tobermorite was the principle reaction product. When 30% metahalloysite was added to the mixture containing CaO and SiO2, the formation of katoite was found.
© The Authors, published by EDP Sciences, 2018
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. (http://creativecommons.org/licenses/by/4.0/).
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