Analysis of magnesium oxychloride cement lean concrete

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F25%3A00385312" target="_blank" >RIV/68407700:21110/25:00385312 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1063/5.0286305" target="_blank" >https://doi.org/10.1063/5.0286305</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0286305" target="_blank" >10.1063/5.0286305</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Analysis of magnesium oxychloride cement lean concrete

Popis výsledku v původním jazyce

Magnesium oxychloride cement (MOC) is considered eco-friendly alternative to ordinary used cement-based concrete or mortars with comparable strength while its main component, MgO, is produced at a lower temperature than Portland cement. Another advantage is its ability to incorporate a wide variety of materials, both organic and inorganic, as well as to contain a high amount of filler. This gives the possibility to use different types of materials, especially wastes, as filler and use them as secondary raw materials. In this contribution, the MOC-based composites with increased silica sand filler content were studied. The effect of the change in the mixture composition was evaluated using SEM micrographs and determination of basic structural properties, mechanical strength, and water absorption parameters. These properties were tested on three mixtures: control mixture designed in compliance with the Czech technical standard and two mixtures containing 200 % and 250 % of the control silica sand amount. The results show that even with a double increase in filler content, the material achieved the same or even slightly changed properties apart from the workability of the fresh mixture and the ability to transport water, which were reduced. On the other hand, further increase in filler content resulted in a significant change of material structure, increased porosity and all related properties. Despite a high reduction of mechanical strength, the material still reached mechanical resistance which makes it still usable for load-bearing structures. In summary, the ability of eco-friendly MOC to effectively accommodate a high volume of filler gives the opportunity for the application of waste materials as filler and apply them as secondary raw materials.

Název v anglickém jazyce

Analysis of magnesium oxychloride cement lean concrete

Popis výsledku anglicky

Magnesium oxychloride cement (MOC) is considered eco-friendly alternative to ordinary used cement-based concrete or mortars with comparable strength while its main component, MgO, is produced at a lower temperature than Portland cement. Another advantage is its ability to incorporate a wide variety of materials, both organic and inorganic, as well as to contain a high amount of filler. This gives the possibility to use different types of materials, especially wastes, as filler and use them as secondary raw materials. In this contribution, the MOC-based composites with increased silica sand filler content were studied. The effect of the change in the mixture composition was evaluated using SEM micrographs and determination of basic structural properties, mechanical strength, and water absorption parameters. These properties were tested on three mixtures: control mixture designed in compliance with the Czech technical standard and two mixtures containing 200 % and 250 % of the control silica sand amount. The results show that even with a double increase in filler content, the material achieved the same or even slightly changed properties apart from the workability of the fresh mixture and the ability to transport water, which were reduced. On the other hand, further increase in filler content resulted in a significant change of material structure, increased porosity and all related properties. Despite a high reduction of mechanical strength, the material still reached mechanical resistance which makes it still usable for load-bearing structures. In summary, the ability of eco-friendly MOC to effectively accommodate a high volume of filler gives the opportunity for the application of waste materials as filler and apply them as secondary raw materials.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název statě ve sborníku

AIP Conference Proceedings 3315

ISBN

—

ISSN

1551-7616

e-ISSN

1551-7616

Počet stran výsledku

4

Strana od-do

"060002-1"-"060002-4"

Název nakladatele

AIP Publishing, APL, the American Institute of Physics

Místo vydání

Melville, NY

Místo konání akce

Heraklion

Datum konání akce

11. 9. 2023

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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