Numerično modeliranje poladiabatnega poskusa

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

Abstract

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.

Keywords

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

Data

Language:	Slovenian
Year of publishing:	2011
Typology:	1.08 - Published Scientific Conference Contribution
Organization:	UL FGG - Faculty of Civil and Geodetic Engineering
UDC:	624.012
COBISS:	5533281
Views:	2074
Downloads:	478
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Numerical modelling of semi-adiabatic test
Secondary abstract:	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.
Secondary keywords:	heat of hydration;mass concrete;adiabatic experiment;semi-adiabatic experiment;finite element method;
File type:	application/pdf
Pages:	Str. 75-82
ID:	8312257