INFLUENCE OF C12A7 ADMIXTURE ON SETTING PROPERTIES OF FLY ASH GEOPOLYMER

Result code in 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>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
INFLUENCE OF C12A7 ADMIXTURE ON SETTING PROPERTIES OF FLY ASH GEOPOLYMER
Original language description
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.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JN - Civil engineering
OECD FORD branch
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Project
<a href="/en/project/GP103%2F08%2FP270" target="_blank" >GP103/08/P270: Development and study of the properties of progressive expolosion resistant materials</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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