About: Calcined gypsum-lime-metakaolin binders: Design of optimal composition

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The effect of composition on the properties of calcined gypsum-lime-metakaolin pastes is investigated. The components in the calcined gypsum-lime-metakaolinwater system are found to interact synergically; there is no simple way to find the optimum composition. Therefore, an optimization is performed using the sequential simplex method which leads very fast to a significant enhancement of mechanical properties. Already after the first trial the compressive strength is almost two times higher than for the most successful initial mixes designed in a common way without optimization and more than three times higher than for the reference calcined gypsum-lime paste. The bending strength and dynamic modulus of elasticity exhibit similar improvements. In addition, the better mechanical properties are achieved without any negative effect on thermal conductivity and water vapor diffusion coefficient. The effect of composition on the properties of calcined gypsum-lime-metakaolin pastes is investigated. The components in the calcined gypsum-lime-metakaolinwater system are found to interact synergically; there is no simple way to find the optimum composition. Therefore, an optimization is performed using the sequential simplex method which leads very fast to a significant enhancement of mechanical properties. Already after the first trial the compressive strength is almost two times higher than for the most successful initial mixes designed in a common way without optimization and more than three times higher than for the reference calcined gypsum-lime paste. The bending strength and dynamic modulus of elasticity exhibit similar improvements. In addition, the better mechanical properties are achieved without any negative effect on thermal conductivity and water vapor diffusion coefficient. (en)
Title	Calcined gypsum-lime-metakaolin binders: Design of optimal composition Calcined gypsum-lime-metakaolin binders: Design of optimal composition (en)
skos:prefLabel	Calcined gypsum-lime-metakaolin binders: Design of optimal composition Calcined gypsum-lime-metakaolin binders: Design of optimal composition (en)
skos:notation	RIV/68407700:21110/14:00218238!RIV15-GA0-21110___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GBP105/12/G059)
http://linked.open...iv/cisloPeriodika	September
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Černý, Robert Keppert, Martin Vimmrová, Alena Michalko, Ondrej
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	6055
http://linked.open...ai/riv/idVysledku	RIV/68407700:21110/14:00218238
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Calcined gypsum; Lime; Metakaolin; Sequential simplex optimization; Mechanical properties; Thermal properties; Water vapor diffusion (en)
http://linked.open.../riv/klicoveSlovo	Calcined gypsum Thermal properties Metakaolin Mechanical properties Water vapor diffusion Sequential simplex optimization Lime
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[834EAC4ED9B5]
http://linked.open...i/riv/nazevZdroje	Cement and Concrete Composites
http://linked.open...in/vavai/riv/obor	JJ
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Cumulative time dependent processes in building materials and structures
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	52
http://linked.open...iv/tvurceVysledku	Keppert, Martin Černý, Robert Vimmrová, Alena Michalko, Ondrej
http://linked.open...ain/vavai/riv/wos	000339695200011
issn	0958-9465
number of pages	6 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.cemconcomp.2014.05.011
http://localhost/t...ganizacniJednotka	21110

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