Waste solidified alkalis as activators of aluminosilicate precursors: Functional and environmental evaluation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F22%3A00357931" target="_blank" >RIV/68407700:21110/22:00357931 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.jobe.2022.104598" target="_blank" >https://doi.org/10.1016/j.jobe.2022.104598</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jobe.2022.104598" target="_blank" >10.1016/j.jobe.2022.104598</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Waste solidified alkalis as activators of aluminosilicate precursors: Functional and environmental evaluation

Popis výsledku v původním jazyce

Alkali-activated materials research presents currently a hot topic in materials science mainly because of the potentially significant savings of carbon dioxide emissions compared to Portland cement. A broad range of precursors was studied to highlight the environmental and functional benefits related to the utilization of local materials or waste products. However, the negatives associated with the application of commercial alkaline activators, such as sodium hydroxide or sodium silicate, which can pose a significant environmental risk in some impact categories, were often overlooked. In this study, the potential of waste solidified alkalis originated in industrial operations as primary activators of aluminosilicate precursors is analyzed. At the functional and environmental evaluation of designed alkali activated aluminosilicates, basic physical characteristics and mechanical parameters represent the functional properties, the LCA analysis at midpoint and endpoint levels describes the environmental impacts. The mechanical performance is found satisfactory for construction materials, the comparison of environmental parameters with widely used commercial activators shows substantial benefits boosted by the avoided production of neutralization agents used for the stabilization of waste alkalis.

Název v anglickém jazyce

Waste solidified alkalis as activators of aluminosilicate precursors: Functional and environmental evaluation

Popis výsledku anglicky

Alkali-activated materials research presents currently a hot topic in materials science mainly because of the potentially significant savings of carbon dioxide emissions compared to Portland cement. A broad range of precursors was studied to highlight the environmental and functional benefits related to the utilization of local materials or waste products. However, the negatives associated with the application of commercial alkaline activators, such as sodium hydroxide or sodium silicate, which can pose a significant environmental risk in some impact categories, were often overlooked. In this study, the potential of waste solidified alkalis originated in industrial operations as primary activators of aluminosilicate precursors is analyzed. At the functional and environmental evaluation of designed alkali activated aluminosilicates, basic physical characteristics and mechanical parameters represent the functional properties, the LCA analysis at midpoint and endpoint levels describes the environmental impacts. The mechanical performance is found satisfactory for construction materials, the comparison of environmental parameters with widely used commercial activators shows substantial benefits boosted by the avoided production of neutralization agents used for the stabilization of waste alkalis.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20701 - Environmental and geological engineering, geotechnics

Projekt

<a href="/cs/project/GA22-04726S" target="_blank" >GA22-04726S: Zhodnocení sladkovodních sedimentů pomocí alkalické aktivace</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 periodika

Journal of Building Engineering

ISSN

2352-7102

e-ISSN

2352-7102

Svazek periodika

54

Číslo periodika v rámci svazku

104598

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

15

Strana od-do

—

Kód UT WoS článku

000852690500003

EID výsledku v databázi Scopus

2-s2.0-85130129380