DEVELOPMENT OF POROUS STRUCTURE OF CERAMIC-BASED GEOPOLYMERS

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F18%3A00325801" target="_blank" >RIV/68407700:21110/18:00325801 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.5593/sgem2018V/6.4/S10.084" target="_blank" >http://dx.doi.org/10.5593/sgem2018V/6.4/S10.084</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5593/sgem2018V/6.4/S10.084" target="_blank" >10.5593/sgem2018V/6.4/S10.084</a>

Jazyk výsledku

angličtina

Název v původním jazyce

DEVELOPMENT OF POROUS STRUCTURE OF CERAMIC-BASED GEOPOLYMERS

Popis výsledku v původním jazyce

Geopolymers are alkali-activated materials produced by mixing silicate and aluminate phases containing minerals or aluminosilicates. This reaction results in stable polymeric networks of aluminosilicates. Nowadays, geopolymers have become very popular since they are seen as a potential alternative to ordinary concrete-based materials. They can be produced with the utilization of a variety of waste products. Therefore, the development of these materials can help to reduce greenhouse gas emissions from the production of concrete-based materials. This study aims to analyze the impact of different curing temperatures (25, 40, 60 and 80 °C) on the geopolymerization process, development of pore structure, basic physical and mechanical properties of ceramic-based geopolymers activated by alkali. Fine ceramic particles used for this study are an industrial waste from the final cutting of the bricks, and thus, this material is available in high quantities. The results showed that the thermal treatment of the fresh mixtures at selected temperatures accelerated the geopolymerization process which was clearly seen on the enhanced 28-days mechanical properties. Nevertheless, this enhancement was in contrary to the data obtained from mercury intrusion porosimetry, as the elevated temperatures of 80 °C led to an increase of porosity at samples.

Název v anglickém jazyce

DEVELOPMENT OF POROUS STRUCTURE OF CERAMIC-BASED GEOPOLYMERS

Popis výsledku anglicky

Geopolymers are alkali-activated materials produced by mixing silicate and aluminate phases containing minerals or aluminosilicates. This reaction results in stable polymeric networks of aluminosilicates. Nowadays, geopolymers have become very popular since they are seen as a potential alternative to ordinary concrete-based materials. They can be produced with the utilization of a variety of waste products. Therefore, the development of these materials can help to reduce greenhouse gas emissions from the production of concrete-based materials. This study aims to analyze the impact of different curing temperatures (25, 40, 60 and 80 °C) on the geopolymerization process, development of pore structure, basic physical and mechanical properties of ceramic-based geopolymers activated by alkali. Fine ceramic particles used for this study are an industrial waste from the final cutting of the bricks, and thus, this material is available in high quantities. The results showed that the thermal treatment of the fresh mixtures at selected temperatures accelerated the geopolymerization process which was clearly seen on the enhanced 28-days mechanical properties. Nevertheless, this enhancement was in contrary to the data obtained from mercury intrusion porosimetry, as the elevated temperatures of 80 °C led to an increase of porosity at samples.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GA16-02862S" target="_blank" >GA16-02862S: Nízkoenergetická pojiva na bázi alkalicky aktivovaného odpadního cihelného prachu</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

18th International Multidisciplinary Scientific Geoconference SGEM 2018 - Nano, Bio, Green and Space - Technologies for a Sustainable Future

ISBN

978-619-7408-71-3

ISSN

1314-2704

e-ISSN

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Počet stran výsledku

10

Strana od-do

677-686

Název nakladatele

STEF92 Technology Ltd.

Místo vydání

Sofia

Místo konání akce

Vídeň

Datum konání akce

3. 12. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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