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Title: MACRO-MECHANICAL AND MICRO-MICROMECHANICAL PROPERTIES OF NANO-ENHANCED MAGNESIUM OXYCHLORIDE CEMENT
MACRO-MECHANICAL AND MICRO-MICROMECHANICAL PROPERTIES OF NANO-ENHANCED MAGNESIUM OXYCHLORIDE CEMENT

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Adam Pivak; Martina Zaleska; Zbysek Pavlik; Milena Pavlikova
10.5593/sgem2022/6.1/s26.22
10.5593/sgem2022/6.1
1314-2704
978-619-7603-48-4
English
22
6.1
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
Green Buildings Technologies and Materials
This study is focused on influence of graphene nanoplatelets as additive in magnesium oxychloride cement (MOC) paste. This material composed of light-burned magnesia, prepared at lower temperatures than ordinary Portland cement (PC), is considered as its eco-efficient low-carbon alternative with properties comparable to high-performance concrete such as high mechanical resistance, stiffness., and low porosity. Two composite pastes were prepared, reference paste and paste enhanced with graphene, and subjected to several testing methods. Among the used analytical techniques, scanning electron microscopy, energy dispersive spectroscopy and tests for assessment structural characteristics, macro-mechanical parameters, and micro-mechanical properties using nanoindentation apparatus were applied. While the results of control sample show excellent performance on its own, the doping MOC paste with graphene nanoplatelets further enhanced composite characteristics in terms of high compactness, mechanical resistance, and hardness. It was concluded that graphene-enhanced magnesia-based composite possesses high mechanical resistance which is crucial for its presumed application in building industry as load-bearing construction material.
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The authors gratefully acknowledge the financial support received from the Czech Science Foundation, under project No. 20-01866S - High-performance composites containing layered nanomaterials. The presentation of research results was supported by the Grant Agency of the Czech Technical University in Prague, project No. SGS20/153/OHK1/3T/11 – Development of Advanced Building Materials.
conference
https://doi.org/10.5593/sgem2022/6.1/s26.22
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Proceedings of 22nd International Multidisciplinary Scientific GeoConference SGEM 2022
22nd International Multidisciplinary Scientific GeoConference SGEM 2022, 04 - 10 July, 2022
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Turkish Acad Sci.
179-186
04 - 10 July, 2022
website
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magnesium oxychloride cement, graphene nanoplatelets, nanomaterials, mechanical parameters