Numerično modeliranje poladiabatnega poskusa

Anka Ilc (Avtor), Goran Turk (Avtor), Gregor Trtnik (Avtor)

Povzetek

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.

Ključne besede

hidratacijska toplota;masivni beton;adiabatni poskus;poladiabatni poskus;metoda končnih elementov;

Podatki

Jezik:	Slovenski jezik
Leto izida:	2011
Tipologija:	1.08 - Objavljeni znanstveni prispevek na konferenci
Organizacija:	UL FGG - Fakulteta za gradbeništvo in geodezijo
UDK:	624.012
COBISS:	5533281
Št. ogledov:	2074
Št. prenosov:	478
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Angleški jezik
Sekundarni naslov:	Numerical modelling of semi-adiabatic test
Sekundarni povzetek:	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.
Sekundarne ključne besede:	heat of hydration;mass concrete;adiabatic experiment;semi-adiabatic experiment;finite element method;
Vrsta datoteke:	application/pdf
Strani:	Str. 75-82
ID:	8312257