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  • Nárůst teploty v betonové konstrukci vlivem hydratace představuje závažný problém, který způsobuje vznik trhlin a z chemického hlediska změnu hydratační kinetiky. Model hydratace cementu byl začleněn do programu s konečnými prvky, kde bylo sdruženo hydratační teplo s aktuální teplotou v místě konstrukce. Hydratační model běží na úrovni mikrometrů a umožňuje vypočítat teplo hydratace, stupeň hydratace, či homogenizované elastické vlastnosti. Tento nástroj je aplikován na betonáž základové desky, která byla zhotovena v devíti etapách a je ukázán vývoj teploty. (cs)
  • Temperature evolution in concrete constructions due to hydration heat presents a formidable problem causing early age cracking and from the chemical point of view changing a hydration kinetics. Cement hydration model was incorporated in the finite element program, coupling hydration heat with actual temperature in a heat-conduction problem. The hydration model runs at the micrometer level and allows to compute local quantities, e.g. heat of hydration, degree of hydration, or homogenised elastic properties. Such tool is used to validate concrete slab member casted at nine stages and showing the evolution of temperature.
  • Temperature evolution in concrete constructions due to hydration heat presents a formidable problem causing early age cracking and from the chemical point of view changing a hydration kinetics. Cement hydration model was incorporated in the finite element program, coupling hydration heat with actual temperature in a heat-conduction problem. The hydration model runs at the micrometer level and allows to compute local quantities, e.g. heat of hydration, degree of hydration, or homogenised elastic properties. Such tool is used to validate concrete slab member casted at nine stages and showing the evolution of temperature. (en)
Title
  • Analysis of Concrete Foundation -- Heat Conduction Multiscale Modeling
  • Analysis of Concrete Foundation -- Heat Conduction Multiscale Modeling (en)
  • Analýza betonového základu - víceúrovňové modelování vedení tepla (cs)
skos:prefLabel
  • Analysis of Concrete Foundation -- Heat Conduction Multiscale Modeling
  • Analysis of Concrete Foundation -- Heat Conduction Multiscale Modeling (en)
  • Analýza betonového základu - víceúrovňové modelování vedení tepla (cs)
skos:notation
  • RIV/68407700:21110/07:01131722!RIV08-MSM-21110___
http://linked.open.../vavai/riv/strany
  • 279;280
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • Z(MSM6840770003)
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
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http://linked.open...dnocenehoVysledku
  • 409452
http://linked.open...ai/riv/idVysledku
  • RIV/68407700:21110/07:01131722
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • FEM; cement hydration; heat conduction; hydration heat (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [50BF7671C705]
http://linked.open...v/mistoKonaniAkce
  • Svratka
http://linked.open...i/riv/mistoVydani
  • Praha
http://linked.open...i/riv/nazevZdroje
  • Engineering Mechanics 2007
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...iv/tvurceVysledku
  • Koudelka, Tomáš
  • Šmilauer, Vít
  • Krejčí, Tomáš
http://linked.open...vavai/riv/typAkce
http://linked.open.../riv/zahajeniAkce
http://linked.open...n/vavai/riv/zamer
number of pages
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  • Ústav termomechaniky AV ČR
https://schema.org/isbn
  • 978-80-87012-06-2
http://localhost/t...ganizacniJednotka
  • 21110
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