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%2F68407700%3A21110%2F21%3A00353056" target="_blank" >RIV/68407700:21110/21:00353056 - 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 XRD, XRF, XPS, STA and various mechanical tests. These analyses helped to choose 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 and analyzed in terms of its structural, mechanical, and hygric properties. Also, a reference sample, which did not contain the partially oxidized MWCNTs was prepared in order to compare its properties to the properties of the prepared nanocomposite.

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 XRD, XRF, XPS, STA and various mechanical tests. These analyses helped to choose 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 and analyzed in terms of its structural, mechanical, and hygric properties. Also, a reference sample, which did not contain the partially oxidized MWCNTs was prepared in order to compare its properties to the properties of the prepared nanocomposite.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

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

21th International Multidisciplinary Scientific Geoconference SGEM 2021 Conference Proceedings

ISBN

978-619-7603-30-9

ISSN

1314-2704

e-ISSN

—

Počet stran výsledku

9

Strana od-do

391-399

Název nakladatele

STEF92 Technology Ltd.

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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