Macro-Mechanical and Micro-Mechanical Properties of Nano-Enhanced Magnesium Oxychloride Cement

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F22%3A00363821" target="_blank" >RIV/68407700:21110/22:00363821 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.5593/sgem2022/6.1/s26.22" target="_blank" >https://doi.org/10.5593/sgem2022/6.1/s26.22</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5593/sgem2022/6.1/s26.22" target="_blank" >10.5593/sgem2022/6.1/s26.22</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Macro-Mechanical and Micro-Mechanical Properties of Nano-Enhanced Magnesium Oxychloride Cement

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Macro-Mechanical and Micro-Mechanical Properties of Nano-Enhanced Magnesium Oxychloride Cement

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20101 - Civil engineering

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

2022

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of 22nd International Multidisciplinary Scientific GeoConference SGEM 2022

ISBN

—

ISSN

1314-2704

e-ISSN

—

Počet stran výsledku

8

Strana od-do

179-186

Název nakladatele

STEF92 Technology Ltd.

Místo vydání

Sofia

Místo konání akce

Albena

Datum konání akce

2. 7. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—