The Usability of Metallurgical Production Waste as a Siliceous Component in Autoclaved Aerated Concrete Technology

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F24%3APU154731" target="_blank" >RIV/00216305:26110/24:PU154731 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.mdpi.com/2075-5309/14/10/3155" target="_blank" >https://www.mdpi.com/2075-5309/14/10/3155</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/buildings14103155" target="_blank" >10.3390/buildings14103155</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The Usability of Metallurgical Production Waste as a Siliceous Component in Autoclaved Aerated Concrete Technology

Popis výsledku v původním jazyce

The reconstruction of buildings is a complex process that often requires the consideration of the construction load when selecting correct building materials. Autoclaved aerated concrete (AAC)-which has a lower bulk density (compared to traditional masonry materials)-is very beneficial in such applications. A current trend in AAC development is the utilization of secondary raw materials in high-performance AAC, characterized by higher bulk density and compressive strength than regular AAC. The increase in bulk density is achieved by increasing the content of quartz sand in the mixing water. In this study, part of the siliceous component was replaced by ladle slag, foundry sand, furnace lining, and chamotte block powder. These materials are generated as by-products in metallurgy. The substitution rates were 10% and 30%. The samples were autoclaved in a laboratory autoclave for 8 h of isothermal duration at 190 degrees C with a saturated water vapor pressure of 1.4 MPa. The physical-mechanical parameters were determined, and the microstructure was described by XRD and SEM analyses. The results were compared with traditional AAC, with silica sand being used as the siliceous component. The measurement results show that sand substitution by the secondary raw material is possible, and it does not have a significant impact on the properties of AAC, and in a proper dosage, it can be beneficial for AAC production.

Název v anglickém jazyce

The Usability of Metallurgical Production Waste as a Siliceous Component in Autoclaved Aerated Concrete Technology

Popis výsledku anglicky

The reconstruction of buildings is a complex process that often requires the consideration of the construction load when selecting correct building materials. Autoclaved aerated concrete (AAC)-which has a lower bulk density (compared to traditional masonry materials)-is very beneficial in such applications. A current trend in AAC development is the utilization of secondary raw materials in high-performance AAC, characterized by higher bulk density and compressive strength than regular AAC. The increase in bulk density is achieved by increasing the content of quartz sand in the mixing water. In this study, part of the siliceous component was replaced by ladle slag, foundry sand, furnace lining, and chamotte block powder. These materials are generated as by-products in metallurgy. The substitution rates were 10% and 30%. The samples were autoclaved in a laboratory autoclave for 8 h of isothermal duration at 190 degrees C with a saturated water vapor pressure of 1.4 MPa. The physical-mechanical parameters were determined, and the microstructure was described by XRD and SEM analyses. The results were compared with traditional AAC, with silica sand being used as the siliceous component. The measurement results show that sand substitution by the secondary raw material is possible, and it does not have a significant impact on the properties of AAC, and in a proper dosage, it can be beneficial for AAC production.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

20100 - Civil engineering

Projekt

<a href="/cs/project/GA23-04824S" target="_blank" >GA23-04824S: Vliv alternativních surovinových komponent na zlepšení fyzikálně mechanických vlastností autoklávovaného pórobetonu</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Buildings

ISSN

2075-5309

e-ISSN

—

Svazek periodika

14

Číslo periodika v rámci svazku

3155

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

18

Strana od-do

„“-„“

Kód UT WoS článku

001342712400001

EID výsledku v databázi Scopus

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