About: Physical and Chemical Aspects of the Nucleation of Cement-Based Materials

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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)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://ctn.cvut.cz/ap/download.php?id=750
Description	A theoretical model of the nucleation of portlandite is proposed, and the critical size of a portlandite cluster and the energy barrier of nucleation are determined. The steady state nucleation rate and the time lag of the nucleation of portlandite are estimated for a pure solution of Ca(OH)2 in water. Possible connections with the corresponding properties for cement paste are discussed. A new method is developed for experimentally determining the concentration of Ca2+ ions during the initial stage of hydration of a cement paste. The time dependence of Ca2+ ions is measured for various water-to-cement ratio values. The results are discussed from the point of view of existing models of the induction period. A theoretical model of the nucleation of portlandite is proposed, and the critical size of a portlandite cluster and the energy barrier of nucleation are determined. The steady state nucleation rate and the time lag of the nucleation of portlandite are estimated for a pure solution of Ca(OH)2 in water. Possible connections with the corresponding properties for cement paste are discussed. A new method is developed for experimentally determining the concentration of Ca2+ ions during the initial stage of hydration of a cement paste. The time dependence of Ca2+ ions is measured for various water-to-cement ratio values. The results are discussed from the point of view of existing models of the induction period. (en)
Title	Physical and Chemical Aspects of the Nucleation of Cement-Based Materials Physical and Chemical Aspects of the Nucleation of Cement-Based Materials (en)
skos:prefLabel	Physical and Chemical Aspects of the Nucleation of Cement-Based Materials Physical and Chemical Aspects of the Nucleation of Cement-Based Materials (en)
skos:notation	RIV/68407700:21110/12:00211710!RIV14-MSM-21110___
http://linked.open...avai/riv/aktivita	S Z
http://linked.open...avai/riv/aktivity	S, Z(AV0Z10100521), Z(MSM6840770003)
http://linked.open...iv/cisloPeriodika	6/2012
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Tichá, Petra Hošková, Šárka Ladman, David
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	České vysoké učení technické v Praze / Fakulta stavební
http://linked.open...dnocenehoVysledku	158635
http://linked.open...ai/riv/idVysledku	RIV/68407700:21110/12:00211710
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	cement paste; induction period; calcium concentration; nucleation rate; time lag (en)
http://linked.open.../riv/klicoveSlovo	cement paste time lag calcium concentration induction period nucleation rate
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[87F9370FB41C]
http://linked.open...i/riv/nazevZdroje	Acta Polytechnica
http://linked.open...in/vavai/riv/obor	JI
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	52
http://linked.open...iv/tvurceVysledku	Demo, Pavel Sveshnikov, Alexey Tichá, Petra Hošková, Šárka Ladman, David
http://linked.open...n/vavai/riv/zamer	Physics and technology of nanostructures, surfaces and thin films Rozvoj algoritmů počítačových simulací a jejich aplikace v inženýrství
issn	1210-2709
number of pages	7 (xsd:int)
http://localhost/t...ganizacniJednotka	21110

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