Rheology properties of metakaolin activated by lithium water glass

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F25%3A00385066" target="_blank" >RIV/68407700:21110/25:00385066 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.14311/APP.2025.53.0037" target="_blank" >https://doi.org/10.14311/APP.2025.53.0037</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.14311/APP.2025.53.0037" target="_blank" >10.14311/APP.2025.53.0037</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Rheology properties of metakaolin activated by lithium water glass

Popis výsledku v původním jazyce

Alkali-activated materials play an important role in the current industry, because they offer alternative way towards low carbon technologies. However, their crucial utilization still lays in the field of composites resistant to high temperatures, especially in the heavy machinery and chemical industry. The current paper documents rheological properties of set of pastes on the basis of Czech metakaolin as precursor, which was activated by lithium water glass exhibiting various silicate modulus. The rheological properties were studied in terms of standard flow test and optimized composition exhibiting similar workability were subsequently investigated by using rotary rheometer. The rheology was monitored in time to document performed changes during the geopolymerization. The attained flow curves were fitted by Herschel-Bulkley model and basic rheological characteristics of optimized pastes were derived. The research confirmed prolonged workability of the studied paste activated by lithium water glass and better. The pastes activated by lithium water glass of lower silicate modulus exhibited lower values of yield stress.

Název v anglickém jazyce

Rheology properties of metakaolin activated by lithium water glass

Popis výsledku anglicky

Alkali-activated materials play an important role in the current industry, because they offer alternative way towards low carbon technologies. However, their crucial utilization still lays in the field of composites resistant to high temperatures, especially in the heavy machinery and chemical industry. The current paper documents rheological properties of set of pastes on the basis of Czech metakaolin as precursor, which was activated by lithium water glass exhibiting various silicate modulus. The rheological properties were studied in terms of standard flow test and optimized composition exhibiting similar workability were subsequently investigated by using rotary rheometer. The rheology was monitored in time to document performed changes during the geopolymerization. The attained flow curves were fitted by Herschel-Bulkley model and basic rheological characteristics of optimized pastes were derived. The research confirmed prolonged workability of the studied paste activated by lithium water glass and better. The pastes activated by lithium water glass of lower silicate modulus exhibited lower values of yield stress.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Projekt

<a href="/cs/project/FW10010109" target="_blank" >FW10010109: Vývoj progresivních žárovzdorných materiálů s důrazem na redukci uhlíkové stopy</a><br>

Návaznosti

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

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název statě ve sborníku

Modern Concrete and Composites 2024

ISBN

978-80-01-07455-8

ISSN

2336-5382

e-ISSN

2336-5382

Počet stran výsledku

5

Strana od-do

37-41

Název nakladatele

ACTA Polytechnica CTU

Místo vydání

Prague

Místo konání akce

hotel Ski, Nové Město na Moravě

Datum konání akce

16. 10. 2024

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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