The possibility of thermal activation of bentonitic clays: impact of temperature

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F23%3A00372817" target="_blank" >RIV/68407700:21110/23:00372817 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1088/1742-6596/2628/1/012013" target="_blank" >https://doi.org/10.1088/1742-6596/2628/1/012013</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1742-6596/2628/1/012013" target="_blank" >10.1088/1742-6596/2628/1/012013</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The possibility of thermal activation of bentonitic clays: impact of temperature

Popis výsledku v původním jazyce

This article deals with the possibility of thermal activation of bentonitic clays. Specifically, the impact of temperature on the overall performance of two varying thermally activated bentonitic clays was investigated and compared with conventional kaolinitic clay. Firstly, the raw materials were characterized; their phase composition, granulometry and thermal analysis were measured. Then studied clays were fired at different temperatures from 500°C to 650°C. Afterwards, the overall performance of thermally activated clays was assessed through the view of their characterization as well as their applicability as Portland cement replacement. The main outcomes were as follows: Bentonites were more susceptible to agglomeration compared to kaolinite. They showed higher mass changes during the heat treatment, but lower increases in specific surface areas. On the other hand, for proper thermal activation, they needed a lower temperature. 600°C seemed to be optimal for the bentonitic clays, while for kaolinite the better results were observed in the case of 650°C. Moreover, thermally activated bentonites reached comparable mechanical strengths of blended cement pastes as the one with kaolinitic clay.

Název v anglickém jazyce

The possibility of thermal activation of bentonitic clays: impact of temperature

Popis výsledku anglicky

This article deals with the possibility of thermal activation of bentonitic clays. Specifically, the impact of temperature on the overall performance of two varying thermally activated bentonitic clays was investigated and compared with conventional kaolinitic clay. Firstly, the raw materials were characterized; their phase composition, granulometry and thermal analysis were measured. Then studied clays were fired at different temperatures from 500°C to 650°C. Afterwards, the overall performance of thermally activated clays was assessed through the view of their characterization as well as their applicability as Portland cement replacement. The main outcomes were as follows: Bentonites were more susceptible to agglomeration compared to kaolinite. They showed higher mass changes during the heat treatment, but lower increases in specific surface areas. On the other hand, for proper thermal activation, they needed a lower temperature. 600°C seemed to be optimal for the bentonitic clays, while for kaolinite the better results were observed in the case of 650°C. Moreover, thermally activated bentonites reached comparable mechanical strengths of blended cement pastes as the one with kaolinitic clay.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

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

Projekt

<a href="/cs/project/GA22-16577S" target="_blank" >GA22-16577S: Možnosti využití tepelně aktivovaných jílů jako částečné náhrady cementu</a><br>

Návaznosti

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

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název statě ve sborníku

Journal of Physics: Conference Series 2628 (2023)

ISBN

—

ISSN

1742-6588

e-ISSN

1742-6596

Počet stran výsledku

6

Strana od-do

—

Název nakladatele

IOP Publishing Ltd.

Místo vydání

Bristol

Místo konání akce

Poprad

Datum konání akce

6. 9. 2023

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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