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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20701 - Environmental and geological engineering, geotechnics

Project

<a href="/en/project/GA22-04726S" target="_blank" >GA22-04726S: Valorization of freshwater sediments by alkali activation</a><br>

Continuities

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

Publication year

2022

Confidentiality

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

Name of the periodical

Journal of Building Engineering

ISSN

2352-7102

e-ISSN

2352-7102

Volume of the periodical

54

Issue of the periodical within the volume

104598

Country of publishing house

GB - UNITED KINGDOM

Number of pages

15

Pages from-to

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UT code for WoS article

000852690500003

EID of the result in the Scopus database

2-s2.0-85130129380