Numerično modeliranje poladiabatnega poskusa

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

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.

• Language: Slovenian
• Keywords: hidratacijska toplota, masivni beton, adiabatni poskus, poladiabatni poskus, metoda končnih elementov
• Typology: 1.08 - Published Scientific Conference Contribution
• Organization: FGG - Faculty of Civil and Geodetic Engineering
• Year: 2011
• Number of pages: Str. 75-82
• PID: 20.500.12556/RUL-32103
• UDC: 624.012
• COBISS.SI-ID: 5533281
• Publication date in RUL: 10.07.2015

ILC, Anka, TURK, Goran and TRTNIK, Gregor, 2011, Numerično modeliranje poladiabatnega poskusa. In : [online]. Published Scientific Conference Contribution. 2011. p. 75–82. [Accessed 17 March 2025]. Retrieved from: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=eng&id=32103

Secondary language

• Language: English
• Title: Numerical modelling of semi-adiabatic test

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.

• Keywords: heat of hydration, mass concrete, adiabatic experiment, semi-adiabatic experiment, finite element method