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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10700 - Other natural sciences

Projekt

<a href="/cs/project/TH80020007" target="_blank" >TH80020007: Vývoj geopolymerních kompozitů jako materiálu pro protikorozní ochranu nebezpečných vraků a dalších kritických podvodních staveb.</a><br>

Návaznosti

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

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Scientific Reports

ISSN

2045-2322

e-ISSN

—

Svazek periodika

14

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

14

Strana od-do

—

Kód UT WoS článku

001215817800054

EID výsledku v databázi Scopus

2-s2.0-85192277789