The impact of graphene and diatomite admixtures on the performance and properties of high-performance magnesium oxychloride cement composites

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F20%3A00344732" target="_blank" >RIV/68407700:21110/20:00344732 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.3390/ma13245708" target="_blank" >https://doi.org/10.3390/ma13245708</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/ma13245708" target="_blank" >10.3390/ma13245708</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The impact of graphene and diatomite admixtures on the performance and properties of high-performance magnesium oxychloride cement composites

Popis výsledku v původním jazyce

A high-performance magnesium oxychloride cement (MOC) composite composed of silica sand, diatomite powder, and doped with graphene nanoplatelets was prepared and characterized. Diatomite was used as a 10 vol.% replacement for silica sand. The dosage of graphene was 0.5 wt.% of the sum of the MgO and MgCl2.6H2O masses. The broad product characterization included high-resolution transmission electron microscopy, X-ray diffraction, X-ray fluorescence, scanningelectron microscopy and energy dispersive spectroscopy analyses. The macrostructural parameters, pore size distribution, mechanical resistance, stiness, hygric and thermal parameters of the composites matured for 28-days were also the subject of investigation. The combination of diatomite and graphene nanoplatelets greatly reduced the porosity and average pore size in comparison with the reference material composed ofMOCand silica sand. In the developed composites, well stable and mechanicallyresistant phase 5 was the only precipitated compound. Therefore, the developed composite showshigh compactness, strength, and low water imbibition which ensure high application potential of this novel type of material in the construction industry.

Název v anglickém jazyce

The impact of graphene and diatomite admixtures on the performance and properties of high-performance magnesium oxychloride cement composites

Popis výsledku anglicky

A high-performance magnesium oxychloride cement (MOC) composite composed of silica sand, diatomite powder, and doped with graphene nanoplatelets was prepared and characterized. Diatomite was used as a 10 vol.% replacement for silica sand. The dosage of graphene was 0.5 wt.% of the sum of the MgO and MgCl2.6H2O masses. The broad product characterization included high-resolution transmission electron microscopy, X-ray diffraction, X-ray fluorescence, scanningelectron microscopy and energy dispersive spectroscopy analyses. The macrostructural parameters, pore size distribution, mechanical resistance, stiness, hygric and thermal parameters of the composites matured for 28-days were also the subject of investigation. The combination of diatomite and graphene nanoplatelets greatly reduced the porosity and average pore size in comparison with the reference material composed ofMOCand silica sand. In the developed composites, well stable and mechanicallyresistant phase 5 was the only precipitated compound. Therefore, the developed composite showshigh compactness, strength, and low water imbibition which ensure high application potential of this novel type of material in the construction industry.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/GA19-00262S" target="_blank" >GA19-00262S: Kompozity na bázi reaktivního hořečnatého cementu s vybranými příměsemi a aditivy</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 periodika

Materials

ISSN

1996-1944

e-ISSN

1996-1944

Svazek periodika

13

Číslo periodika v rámci svazku

December

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

14

Strana od-do

1-14

Kód UT WoS článku

000602849600001

EID výsledku v databázi Scopus

2-s2.0-85098246375