Enhancement of Structural and Mechanical Properties of Magnesium Oxychloride Cement Due to Graphene Addition

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F20%3A43920313" target="_blank" >RIV/60461373:22310/20:43920313 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21110/22:00357735

Výsledek na webu

<a href="https://aip.scitation.org/doi/10.1063/5.0081391" target="_blank" >https://aip.scitation.org/doi/10.1063/5.0081391</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0081391" target="_blank" >10.1063/5.0081391</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Enhancement of Structural and Mechanical Properties of Magnesium Oxychloride Cement Due to Graphene Addition

Popis výsledku v původním jazyce

In recent years, graphene nanoplatelets (GNPs) as nano-sized additives to building materials began attracted an extensive attention due to their improving effect on pore structure, microstructure, mechanical, electrical, and other properties. This study is focused on incorporation of GNPs into magnesium oxychloride cement (MOC). MOC, which is formed during the reaction of caustic calcined magnesia and magnesium chloride, is considered as an environmentally friendly construction material, particularly for its CO2−neutrality. Raw materials were characterized by X-ray fluorescence (XRF), scanning electron microscopy (SEM), and high-resolution transmission electron microscopy (HR-TEM). GNPs were then added into the MOC mixture in the amount of 0.5 wt. %. The effect of graphene on the parameters of studied MOC paste was investigated in terms of its bulk density, specific density, open porosity, compressive and flexural strength, Young’s modulus of elasticity, X-ray diffraction (XRD) and SEM. Results revealed that the addition of GNPs improve the open porosity and mechanical properties, significant increase was observed particularly for compressive strength. The developed GNP-MOC composites characterized by the high strength and low porosity can be considered as promising material intended for application civil engineering.

Název v anglickém jazyce

Enhancement of Structural and Mechanical Properties of Magnesium Oxychloride Cement Due to Graphene Addition

Popis výsledku anglicky

In recent years, graphene nanoplatelets (GNPs) as nano-sized additives to building materials began attracted an extensive attention due to their improving effect on pore structure, microstructure, mechanical, electrical, and other properties. This study is focused on incorporation of GNPs into magnesium oxychloride cement (MOC). MOC, which is formed during the reaction of caustic calcined magnesia and magnesium chloride, is considered as an environmentally friendly construction material, particularly for its CO2−neutrality. Raw materials were characterized by X-ray fluorescence (XRF), scanning electron microscopy (SEM), and high-resolution transmission electron microscopy (HR-TEM). GNPs were then added into the MOC mixture in the amount of 0.5 wt. %. The effect of graphene on the parameters of studied MOC paste was investigated in terms of its bulk density, specific density, open porosity, compressive and flexural strength, Young’s modulus of elasticity, X-ray diffraction (XRD) and SEM. Results revealed that the addition of GNPs improve the open porosity and mechanical properties, significant increase was observed particularly for compressive strength. The developed GNP-MOC composites characterized by the high strength and low porosity can be considered as promising material intended for application civil engineering.

Druh

D - Stať ve sborníku

CEP obor

—

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

2020

Kód důvěrnosti údajů

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

Název statě ve sborníku

ICNAAM 2020 PROCEEDINGS - AIP CP

ISBN

978-0-7354-4182-8

ISSN

—

e-ISSN

—

Počet stran výsledku

4

Strana od-do

070004

Název nakladatele

American Institute of Physics

Místo vydání

Melville

Místo konání akce

Rhodos

Datum konání akce

17. 9. 2020

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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