Properties Of Magnesium Oxychloride Cement Doped By Partially Oxidized Multi-Walled Carbon Nanotubes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F21%3A43922388" target="_blank" >RIV/60461373:22310/21:43922388 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.5593/sgem2021/6.1/s26.50" target="_blank" >http://dx.doi.org/10.5593/sgem2021/6.1/s26.50</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5593/sgem2021/6.1/s26.50" target="_blank" >10.5593/sgem2021/6.1/s26.50</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Properties Of Magnesium Oxychloride Cement Doped By Partially Oxidized Multi-Walled Carbon Nanotubes

Popis výsledku v původním jazyce

The magnesium oxychloride cement (MOC) as an alternative to commonly used Portland cement (PC) has been intensively studied in the past decade. Compared to PC it is more environmentally sustainable and it can be considered as CO2-neutral due to the low calcination temperature of the raw materials and its ability to absorb CO2 from the atmosphere. The objective of this paper was to develop a composite material based on MOC, containing partially oxidized multi-walled carbon nanotubes (partially oxidized MWCNTs) in order to improve its resistance to water, which has been previously proven as very poor. For the partially oxidized MWCNTs, their chemical, phase, thermal and structural properties were studied using X-ray diffraction, X-ray fluorescence, X-ray photoelectron spectroscopy and simultaneous thermal analysis. These analyses helped to determine the optimal content of the additive in order to form a high-performance construction material applicable in various conditions. After the analysis, a sample containing 0.5 wt. % of the partially oxidized MWCNTs was prepared in order to compare its properties to the properties of the prepared nanocomposite. Results showed that the MWCNT addition to MOC matrix is a promising approach for the synthesis of high-performance green building material.

Název v anglickém jazyce

Properties Of Magnesium Oxychloride Cement Doped By Partially Oxidized Multi-Walled Carbon Nanotubes

Popis výsledku anglicky

The magnesium oxychloride cement (MOC) as an alternative to commonly used Portland cement (PC) has been intensively studied in the past decade. Compared to PC it is more environmentally sustainable and it can be considered as CO2-neutral due to the low calcination temperature of the raw materials and its ability to absorb CO2 from the atmosphere. The objective of this paper was to develop a composite material based on MOC, containing partially oxidized multi-walled carbon nanotubes (partially oxidized MWCNTs) in order to improve its resistance to water, which has been previously proven as very poor. For the partially oxidized MWCNTs, their chemical, phase, thermal and structural properties were studied using X-ray diffraction, X-ray fluorescence, X-ray photoelectron spectroscopy and simultaneous thermal analysis. These analyses helped to determine the optimal content of the additive in order to form a high-performance construction material applicable in various conditions. After the analysis, a sample containing 0.5 wt. % of the partially oxidized MWCNTs was prepared in order to compare its properties to the properties of the prepared nanocomposite. Results showed that the MWCNT addition to MOC matrix is a promising approach for the synthesis of high-performance green building material.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

<a href="/cs/project/GA20-01866S" target="_blank" >GA20-01866S: Vysocehodnotné kompozity obsahující vrstevnaté nanomateriály</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM

ISBN

—

ISSN

1314-2704

e-ISSN

—

Počet stran výsledku

10

Strana od-do

391-399

Název nakladatele

SGEM International Multidisciplinary Scientific Geoconference

Místo vydání

Sofia

Místo konání akce

Albena

Datum konání akce

14. 8. 2021

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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