ROLE OF CARBON MICROFIBERS ON ELEVATED TEMPERATURE PROPERTIES OF GEOPOLYMERS

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F18%3A00006363" target="_blank" >RIV/46747885:24210/18:00006363 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/46747885:24410/18:00006363

Výsledek na webu

<a href="http://vat.ft.tul.cz/Archive/VaT_2018_4.html" target="_blank" >http://vat.ft.tul.cz/Archive/VaT_2018_4.html</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

ROLE OF CARBON MICROFIBERS ON ELEVATED TEMPERATURE PROPERTIES OF GEOPOLYMERS

Popis výsledku v původním jazyce

The present work deals with the effect of carbon microfiber addition on the development of microstructure and mechanical properties of geopolymers at elevated temperature. The carbon microfibers were prepared from recycled inexpensive carbon fibrous wastes by ball milling and then subsequently incorporated under 5, 10 and 15 wt.% loading into metakaoline based geopolymers. The addition of carbon microfibers was found to produce compact structure of geopolymers due to their pore filling characteristics and formation of additional calcium silicate or calcium alumino-silicate and sodium alumino-silicate hydrates. The geopolymer composite of 15 wt.% carbon microfiber was found to maintain the residual compressive strengths of 33.55 and 23.96 MPa at 400 and 800°C, respectively and thus recording a minimum strength loss of 19 and 42%, respectively. This behavior was attributed to decreased thermal stresses and restricted swelling of unreacted geopolymer phases after addition of carbon microfibers.

Název v anglickém jazyce

ROLE OF CARBON MICROFIBERS ON ELEVATED TEMPERATURE PROPERTIES OF GEOPOLYMERS

Popis výsledku anglicky

The present work deals with the effect of carbon microfiber addition on the development of microstructure and mechanical properties of geopolymers at elevated temperature. The carbon microfibers were prepared from recycled inexpensive carbon fibrous wastes by ball milling and then subsequently incorporated under 5, 10 and 15 wt.% loading into metakaoline based geopolymers. The addition of carbon microfibers was found to produce compact structure of geopolymers due to their pore filling characteristics and formation of additional calcium silicate or calcium alumino-silicate and sodium alumino-silicate hydrates. The geopolymer composite of 15 wt.% carbon microfiber was found to maintain the residual compressive strengths of 33.55 and 23.96 MPa at 400 and 800°C, respectively and thus recording a minimum strength loss of 19 and 42%, respectively. This behavior was attributed to decreased thermal stresses and restricted swelling of unreacted geopolymer phases after addition of carbon microfibers.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

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OECD FORD obor

20503 - Textiles; including synthetic dyes, colours, fibres (nanoscale materials to be 2.10; biomaterials to be 2.9)

Projekt

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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 periodika

Fibres and textiles (Vlákna a textil)

ISSN

1335-0617

e-ISSN

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Svazek periodika

25

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

5

Strana od-do

3-7

Kód UT WoS článku

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EID výsledku v databázi Scopus

2-s2.0-85064485844