Liquid-solid grinding system: Grinding kinetics of coal fly ash as ultrafine supplementary cementitious materials
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F24%3A10255390" target="_blank" >RIV/61989100:27360/24:10255390 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S1674200124001494" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1674200124001494</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.partic.2024.07.022" target="_blank" >10.1016/j.partic.2024.07.022</a>
Alternative languages
Result language
angličtina
Original language name
Liquid-solid grinding system: Grinding kinetics of coal fly ash as ultrafine supplementary cementitious materials
Original language description
Wet-milling in liquid-solid system can achieve ultra-fine mechanical dissociation of solid wastes with low energy consumption, thereby efficiently improving the potential pozzolanic reactivity. However, the wet-milling kinetics of ultrafine dissociation in liquid-solid system has not been fully investigated. This paper systematically investigates the wet-milling kinetics of fly ash (FA). Results showed that before wet-milling of FA for 360 min, no agglomeration effect was observed. The particle dissociation of FA during wet-milling can be divided into three stages: rapid dissociation, slow dissociation and stabilization. The evolution process of particle size distribution during wet-milling is consistent with the Rosin-Rammler-Bennet distribution. Both the particle uniformity coefficient and fractal dimension showed highly positive linear correlation with the strength activity index of wet-milled FA. The grey correlation analysis showed that FA particles between 1.1 and 3.1 μm had the greatest impact on both the early and late strength activity index. Simultaneously, D10 of wet-milled FA has the largest impact on strength activity index at each age, while D100 has the least impact. Therefore, D10 and proportion of particles in 1.1-3.1 μm can be an important basis for judging the reactivity of wet-milled FA as ultrafine supplementary cementitious materials. (C) 2024
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
20500 - Materials engineering
Result continuities
Project
<a href="/en/project/EH22_008%2F0004631" target="_blank" >EH22_008/0004631: Materials and technologies for sustainable development</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Particuology
ISSN
1674-2001
e-ISSN
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Volume of the periodical
94
Issue of the periodical within the volume
94
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
109-119
UT code for WoS article
001295574500001
EID of the result in the Scopus database
2-s2.0-85201084213