Multicriteria optimization of the composition, thermodynamic and strength properties of fy‑ash as an additive in metakaolin‑based geopolymer composites

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F24%3A00012328" target="_blank" >RIV/46747885:24210/24:00012328 - isvavai.cz</a>

Result on the web

<a href="https://www.nature.com/articles/s41598-024-61123-1" target="_blank" >https://www.nature.com/articles/s41598-024-61123-1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41598-024-61123-1" target="_blank" >10.1038/s41598-024-61123-1</a>

Result language

angličtina

Original language name

Multicriteria optimization of the composition, thermodynamic and strength properties of fy‑ash as an additive in metakaolin‑based geopolymer composites

Original language description

This paper presents the construction of intelligent systems for selecting the optimum concentration of geopolymer matrix components based on ranking optimality criteria. A peculiarity of the methodology is replacing discrete time intervals with a sequence of states. Markov chains represent a synthetic property accumulating heterogeneous factors. The computational basis for the calculations was the digitization of experimental data on the strength properties of fly ashes collected from thermal power plants in the Czech Republic and used as additives in geopolymers. A database and a conceptual model of priority ranking have been developed, that are suitable for determining the structure of relations of the main factors. Computational results are presented by studying geopolymer matrix structure formation kinetics under changing component concentrations in real- time. Multicriteria optimization results for fly-ash as an additive on metakaolin-based geopolymer composites show that the optimal composition of the geopolymer matrix within the selected variation range includes 100 g metakaolin, 90 g potassium activator, 8 g silica fume, 2 g basalt fibers and 50 g fly ash by ratio weight. This ratio gives the best mechanical, thermal, and technological properties.

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

10700 - Other natural sciences

Project

<a href="/en/project/TH80020007" target="_blank" >TH80020007: Development of geopolymer composites as a material for protection of hazardous wrecks and other critical underwater structures against corrosion</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

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

Name of the periodical

Scientific Reports

ISSN

2045-2322

e-ISSN

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Volume of the periodical

14

Issue of the periodical within the volume

1

Country of publishing house

DE - GERMANY

Number of pages

14

Pages from-to

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UT code for WoS article

001215817800054

EID of the result in the Scopus database

2-s2.0-85192277789