INFLUENCE OF C12A7 ADMIXTURE ON SETTING PROPERTIES OF FLY ASH GEOPOLYMER

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F10%3APU89023" target="_blank" >RIV/00216305:26110/10:PU89023 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

INFLUENCE OF C12A7 ADMIXTURE ON SETTING PROPERTIES OF FLY ASH GEOPOLYMER

Popis výsledku v původním jazyce

Geopolymer material based on coal fly ash from the high temperature combustion activated with alkali silicate is a very cheap and suitable material for temporary and non-load-bearing structures. For the purposes of emergency application, such as closingbarriers, it is necessary to have dry mixtures ready for mixing with water. However, the utilization of dried sodium silicate activator instead of an aqueous solution considerably delays its setting. The application of C12A7 accelerates the setting of alkali activated fly ash, but it also influences its mechanical properties. Early-age strengths are increased, the long term strengths are, however, deteriorated in comparison with the pure material without C12A7. Microstructural changes are described by means of mercury intrusion porosimetry, SEM, XRD and FTIR analysis.

Název v anglickém jazyce

INFLUENCE OF C12A7 ADMIXTURE ON SETTING PROPERTIES OF FLY ASH GEOPOLYMER

Popis výsledku anglicky

Geopolymer material based on coal fly ash from the high temperature combustion activated with alkali silicate is a very cheap and suitable material for temporary and non-load-bearing structures. For the purposes of emergency application, such as closingbarriers, it is necessary to have dry mixtures ready for mixing with water. However, the utilization of dried sodium silicate activator instead of an aqueous solution considerably delays its setting. The application of C12A7 accelerates the setting of alkali activated fly ash, but it also influences its mechanical properties. Early-age strengths are increased, the long term strengths are, however, deteriorated in comparison with the pure material without C12A7. Microstructural changes are described by means of mercury intrusion porosimetry, SEM, XRD and FTIR analysis.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JN - Stavebnictví

OECD FORD obor

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Projekt

<a href="/cs/project/GP103%2F08%2FP270" target="_blank" >GP103/08/P270: Vývoj a studium vlastností progersivních výbuchovzdorných materiálů</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název periodika

Ceramics-Silikáty

ISSN

0862-5468

e-ISSN

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Svazek periodika

54

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

6

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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