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Numerično modeliranje poladiabatnega poskusa
Ilc, Anka (Avtor), Turk, Goran (Avtor), Trtnik, Gregor (Avtor)

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Izvleček
The paper deals with the possibility of using a semi-adiabatic test to determine the adiabatic hydration curve of concrete mixtures. Therefore, a temperature was measured at certain points of a concrete specimen during the test and an adiabatic temperature rise was estimated with a numerically determined heat loss compensation. The determined adiabatic hydration curve was inserted into a numerical program, which is used to calculate a temperature field within the concrete element using a finite element method. Acomparison between numerically and experimentally determined values indicatesthe adequacy of the proposed numerical model. Moreover, the semi-adiabatic test proved to be an appropriate method to determine the adiabatic temperature rise.

Jezik:Slovenski jezik
Ključne besede:hidratacijska toplota, masivni beton, adiabatni poskus, poladiabatni poskus, metoda končnih elementov
Tipologija:1.08 - Objavljeni znanstveni prispevek na konferenci
Organizacija:FGG - Fakulteta za gradbeništvo in geodezijo
Leto izida:2011
Št. strani:Str. 75-82
UDK:624.012
COBISS.SI-ID:5533281 Povezava se odpre v novem oknu
Število ogledov:274
Število prenosov:93
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
 
Skupna ocena:(0 glasov)
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Sekundarni jezik

Jezik:Angleški jezik
Naslov:Numerical modelling of semi-adiabatic test
Izvleček:
The paper deals with the possibility of using a semi-adiabatic test to determine the adiabatic hydration curve of concrete mixtures. Therefore, a temperature was measured at certain points of a concrete specimen during the test and an adiabatic temperature rise was estimated with a numerically determined heat loss compensation. The determined adiabatic hydration curve was inserted into a numerical program, which is used to calculate a temperature field within the concrete element using a finite element method. A comparison between numerically and experimentally determined values indicates the adequacy of the proposed numerical model. Moreover, the semi-adiabatic test proved to be an appropriate method to determine the adiabatic temperature rise.

Ključne besede:heat of hydration, mass concrete, adiabatic experiment, semi-adiabatic experiment, finite element method

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