Alkali Activation of Ground Granulated Blast Furnace Slag and Low Calcium Fly Ash Using "One-Part" Approach
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27690%2F22%3A10249537" target="_blank" >RIV/61989100:27690/22:10249537 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27360/22:10249537
Result on the web
<a href="https://doi.org/10.1007/s40831-022-00513-z" target="_blank" >https://doi.org/10.1007/s40831-022-00513-z</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s40831-022-00513-z" target="_blank" >10.1007/s40831-022-00513-z</a>
Alternative languages
Result language
angličtina
Original language name
Alkali Activation of Ground Granulated Blast Furnace Slag and Low Calcium Fly Ash Using "One-Part" Approach
Original language description
The utilization of the solid powder activator for the activation of the ground granulated blast furnace slag (GGBFS) and its mixtures with low calcium fly ash (FA) was tested. Utilizing the activator in a powder form enabled to obtain ready-to-use dry mixtures, which, after the addition of mixing water, molding, and hydration, created compact solid samples. The selected procedure known as "one-part" or "just-add water" approach is beneficial with respect to the traditional two parts approach based on the utilization of the liquid alkali activators. The experiments were subdivided into two parts. The first part was focused on the selection of the solid alkali activator for GGBFS activation. In this stage, two solid powder activators: (i) sodium metasilicate (NS) and (ii) disodium silicate pentahydrate in amounts that carry 2.5, 5, and 7 wt% of Na2O, were tested. The second part was focused on the verification of the suitability of selected solid alkali silicate for the activation of the mixtures of GGBFS with low calcium FA (80:20 and 60:40). The evolution of the compressive strength of the prepared alkali-activated materials was studied after 2, 7, 28, and 56 days of hydration. The raw materials and hydrated samples were examined by XRFS, XRD, FTIR, and SEM techniques. The positive effect of the thermal treatment at 400 degrees C on the compressive strength of the prepared samples was observed. The obtained results indicate the "one-part" method as suitable for the activation of low calcium fly ash in combination with GGBFS.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20402 - Chemical process engineering
Result continuities
Project
<a href="/en/project/EF17_049%2F0008426" target="_blank" >EF17_049/0008426: Research on the management of waste, materials and other products of metallurgy and related sectors</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Sustainable Metallurgy
ISSN
2199-3823
e-ISSN
2199-3831
Volume of the periodical
8
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
nestrankovano
UT code for WoS article
000757921400001
EID of the result in the Scopus database
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