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Title: HIGH-PERFORMANCE MOC COMPOSITE DOPED WITH CARBON-BASED NANOADDITIVE
HIGH-PERFORMANCE MOC COMPOSITE DOPED WITH CARBON-BASED NANOADDITIVE

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Milena Pavlikova; Adam Pivak; Martina Zaleska; Ondrej Jankovsky; Zbysek Pavlik
10.5593/sgem2022/6.1/s26.21
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
Magnesium oxychloride cement (MOC) is a non-hydraulic binder produced in a more eco-efficient way than Portland cement and due to its favorable properties represents its promising alternative in the production of construction materials for specific applications. The specific advantage of MOC is the fact that it can accommodate organic as well as inorganic substances in the form of fillers, aggregates, additives, reinforcement, etc. which enables enriching properties and performance of the final composite material. In this paper, the development and experimental testing of the highperformance composite based on MOC doped with graphene nanoplatelets is the subject of the presented research. The effect of graphene on the final properties and parameters of the hardened composite paste was evaluated using several analytical methods comprising SEM and XRD analyses, mechanical parameters testing, assessment of micro- and macro-structural parameters, and determination of physical parameters of composite, such as hygric and thermal properties. The developed composite was characterized by extremely low porosity, excellent mechanical strength and stiffness, low water absorption, and high thermal conductivity and volumetric heat capacity which were significantly enhanced by the use of graphene nanoplatelets. The acquired results represent a promising route how to effectively improve the reactive magnesia-based composites using carbon nanoadditives.
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[7] Lojka, M., Lauermannova, A.-M., Sedmidubsky, D., Pavlikova, M., Zaleska, M., Pavlik, Z. Pivak, Z., Pivak, A., Jankovsky, O., Magnesium oxychloride cement composites with MWCNT for the construction applications, Materials vol. 14, 484, 2021.
[8] EN 1015-10, Methods of Test for Mortar for Masonry - Part 10: Determination of Dry Bulk Density of Hardened Mortar, European Committee for Standardization (CEN), Brussels, Belgium, 1999.
[9] EN 1015-11, Methods of test for mortar for masonry - Part 11: Determination of flexural and compressive strength of hardened mortar, CEN, Brussels, Belgium, 1999.
[10] EN 1015-18, Methods of Test for Mortar for Masonry-Part 18: Determination of Water Absorption Coefficient Due to Capillarity Action of Hardened Mortar, European Committee for Standardization (CEN), Brussels, Belgium, 2002.
Authors greatly acknowledge the financial support received from the Czech Science Foundation under project No 20-01866S – High-performance composites containing layered nanomaterials. This research has been also partially supported by the Grant Agency of the Czech Technical University in Prague, grant No SGS20/153/OHK1/3T/11.
conference
https://doi.org/10.5593/sgem2022/6.1/s26.21
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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.
171-178
04 - 10 July, 2022
website
8649
magnesium oxychloride cement, graphene nanoplatelets, structural and physical analysis, excellent mechanical strength and stiffness