About: Behaviour of concrete in tunels and undeground concstructions in case of fire

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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	The problem of cement concrete resistance to high temperatures became topical after more frequent car accidents, heavy good vehicles in particular, in tunnels with an outbreak of fire as a result of an accident. Tunnel lining is exposed to intensive temperature released as a result of fire with the temperatures high above 1000 C. The inner part of lining is exposed to various temperature intensities depending on the distance from the fire. Owing to water steam expansion in concrete as a result of temperature-time exposure, concrete surface is cracking and concrete layers are peeled off from various depths and thus the lining is secondary damaged. Appropriate composition of concrete, selection of binder of cement composite material and selection aggregate, additions and/or adding dispersed polypropylene fiber reinforcement can reduce destructive action of high temperature. The problem of cement concrete resistance to high temperatures became topical after more frequent car accidents, heavy good vehicles in particular, in tunnels with an outbreak of fire as a result of an accident. Tunnel lining is exposed to intensive temperature released as a result of fire with the temperatures high above 1000 C. The inner part of lining is exposed to various temperature intensities depending on the distance from the fire. Owing to water steam expansion in concrete as a result of temperature-time exposure, concrete surface is cracking and concrete layers are peeled off from various depths and thus the lining is secondary damaged. Appropriate composition of concrete, selection of binder of cement composite material and selection aggregate, additions and/or adding dispersed polypropylene fiber reinforcement can reduce destructive action of high temperature. (en)
Title	Behaviour of concrete in tunels and undeground concstructions in case of fire Behaviour of concrete in tunels and undeground concstructions in case of fire (en)
skos:prefLabel	Behaviour of concrete in tunels and undeground concstructions in case of fire Behaviour of concrete in tunels and undeground concstructions in case of fire (en)
skos:notation	RIV/68145535:_____/14:00430266!RIV15-GA0-68145535
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GAP104/12/1988)
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Sitek, Libor
http://linked.open.../riv/druhVysledku	O - Ostatní výsledky nezařaditelné do žádného z výše uvedených druhů výsledku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav geoniky AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	5010
http://linked.open...ai/riv/idVysledku	RIV/68145535:_____/14:00430266
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	tunnel; concrete; high temperature; fire (en)
http://linked.open.../riv/klicoveSlovo	concrete fire high temperature tunnel
http://linked.open...ontrolniKodProRIV	[6F41E010B7B2]
http://linked.open...in/vavai/riv/obor	JM
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Study of interactions of components of cementitious composites exposed to high temperatures
http://linked.open...UplatneniVysledku	2014
http://linked.open...iv/tvurceVysledku	Bodnárová, L. Sitek, Libor Válek, J.

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