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Description
  • Autogenní smršťování představuje závažný problém v moderních betonech díky přísadám a vysokým množstvím vody pro hydrataci. Mikroskopický podtlak pórové vody vytváří zatížení na mikrostrukturu, způsobující smršťění a následně dotvarování. Toto chování je simulováno MKP, kde mikrostruktura cementové pasty je přímo zatížena pod tlakem na úrovni mikrometru. Pokud je požadována dobrá shoda výsledků s experimentem, musí se že tečení cementové pasty uvažovat. (cs)
  • Autogenous shrinkage presents a serious problem in modern concretes due to various admixtures and high water demand for hydration. Microscopic underpressure in the pore water exerts inner load to the microstructure, causing shrinkage and consequently creep. This behavior is simulated via FEM, where the microstructure of cement paste is loaded directly by underpressure, at the micrometer scale. Validation shows that creep of the cement paste must be also taken into account when good quantitative prediction is expected.
  • Autogenous shrinkage presents a serious problem in modern concretes due to various admixtures and high water demand for hydration. Microscopic underpressure in the pore water exerts inner load to the microstructure, causing shrinkage and consequently creep. This behavior is simulated via FEM, where the microstructure of cement paste is loaded directly by underpressure, at the micrometer scale. Validation shows that creep of the cement paste must be also taken into account when good quantitative prediction is expected. (en)
Title
  • Simulation of Autogenous Shrinkage of Young Cement Pastes
  • Simulace autogenního smršťování mladých cementových past (cs)
  • Simulation of Autogenous Shrinkage of Young Cement Pastes (en)
skos:prefLabel
  • Simulation of Autogenous Shrinkage of Young Cement Pastes
  • Simulace autogenního smršťování mladých cementových past (cs)
  • Simulation of Autogenous Shrinkage of Young Cement Pastes (en)
skos:notation
  • RIV/68407700:21110/06:01123003!RIV07-GA0-21110___
http://linked.open...avai/riv/aktivita
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  • P(GA103/04/1291), Z(MSM6840770003)
http://linked.open...vai/riv/dodaniDat
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  • 499388
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  • RIV/68407700:21110/06:01123003
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  • FEM; cement hydration; cement paste; elastic properties; micromechanics (en)
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  • [D5B15B1C6A69]
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  • Bittnar, Zdeněk
  • Šmilauer, Vít
http://linked.open...n/vavai/riv/zamer
https://schema.org/isbn
  • 80-86246-27-2
http://localhost/t...ganizacniJednotka
  • 21110
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