About: INFLUENCE OF C12A7 ADMIXTURE ON SETTING PROPERTIES OF FLY ASH GEOPOLYMER

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
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 closing barriers, 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. 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 closing barriers, 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. (en)
Title	INFLUENCE OF C12A7 ADMIXTURE ON SETTING PROPERTIES OF FLY ASH GEOPOLYMER INFLUENCE OF C12A7 ADMIXTURE ON SETTING PROPERTIES OF FLY ASH GEOPOLYMER (en)
skos:prefLabel	INFLUENCE OF C12A7 ADMIXTURE ON SETTING PROPERTIES OF FLY ASH GEOPOLYMER INFLUENCE OF C12A7 ADMIXTURE ON SETTING PROPERTIES OF FLY ASH GEOPOLYMER (en)
skos:notation	RIV/00216305:26110/10:PU89023!RIV11-GA0-26110___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GP103/08/P270), Z(MSM0021630511)
http://linked.open...iv/cisloPeriodika	4
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Rovnaník, Pavel
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoké učení technické v Brně / Fakulta stavební
http://linked.open...dnocenehoVysledku	263601
http://linked.open...ai/riv/idVysledku	RIV/00216305:26110/10:PU89023
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	fly ash, alkali activation, setting accelerator, mayenite (en)
http://linked.open.../riv/klicoveSlovo	setting accelerator fly ash mayenite alkali activation
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[9F592908311C]
http://linked.open...i/riv/nazevZdroje	Ceramics-Silikáty
http://linked.open...in/vavai/riv/obor	JN
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	1 (xsd:int)
http://linked.open...vavai/riv/projekt	Development and study of the properties of progressive expolosion resistant materials
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	54
http://linked.open...iv/tvurceVysledku	Rovnaník, Pavel
http://linked.open...n/vavai/riv/zamer	Progresivní stavební materiály s využitím druhotných surovin a jejich vliv na životnost konstrukcí
issn	0862-5468
number of pages	6 (xsd:int)
http://localhost/t...ganizacniJednotka	26110

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