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Description
  • The combination of concrete's low thermal conductivity with exothermic hydration and ambient temperature leads to thermal gradients in concrete. Consequently, tensile stresses develop, leading to early age cracking that may compromise concrete durability. Hence, the prediction of mass concrete thermal behavior is necessary. Usually, this is done through FEM analysis in combination with adiabatic measurements of cement hydration. However, the use of adiabatic equipment is troublesome due to its high cost and lack of practicality. In that light, this work proposes a low-cost semi-adiabatic calorimeter setup. The measurements from this setup are used to adjust the parameters of an affinity hydration model. Next, the adjusted model is used as a basis for FEM thermal analyses of a mass concrete foundation block. Finally, the results from this analysis are compared against real scale measurements for validation.
  • The combination of concrete's low thermal conductivity with exothermic hydration and ambient temperature leads to thermal gradients in concrete. Consequently, tensile stresses develop, leading to early age cracking that may compromise concrete durability. Hence, the prediction of mass concrete thermal behavior is necessary. Usually, this is done through FEM analysis in combination with adiabatic measurements of cement hydration. However, the use of adiabatic equipment is troublesome due to its high cost and lack of practicality. In that light, this work proposes a low-cost semi-adiabatic calorimeter setup. The measurements from this setup are used to adjust the parameters of an affinity hydration model. Next, the adjusted model is used as a basis for FEM thermal analyses of a mass concrete foundation block. Finally, the results from this analysis are compared against real scale measurements for validation. (en)
Title
  • Analysis of the thermal behavior of mass concrete based on semi-adiabatic temperature measurements
  • Analysis of the thermal behavior of mass concrete based on semi-adiabatic temperature measurements (en)
skos:prefLabel
  • Analysis of the thermal behavior of mass concrete based on semi-adiabatic temperature measurements
  • Analysis of the thermal behavior of mass concrete based on semi-adiabatic temperature measurements (en)
skos:notation
  • RIV/68407700:21110/13:00207523!RIV14-MSM-21110___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GAP105/10/2400), S
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 60718
http://linked.open...ai/riv/idVysledku
  • RIV/68407700:21110/13:00207523
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • adiabatic calorimeter; hydration; mass concrete (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [DD52FFAE1D3D]
http://linked.open...v/mistoKonaniAkce
  • Svratka
http://linked.open...i/riv/mistoVydani
  • Praha
http://linked.open...i/riv/nazevZdroje
  • Engineering Mechanics 2013
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...iv/tvurceVysledku
  • Štemberk, Petr
  • Šmilauer, Vít
  • Leal Da Silva, Wilson Ricardo
http://linked.open...vavai/riv/typAkce
http://linked.open.../riv/zahajeniAkce
issn
  • 1805-8256
number of pages
http://purl.org/ne...btex#hasPublisher
  • Ústav termomechaniky AV ČR
https://schema.org/isbn
  • 978-80-87012-47-5
http://localhost/t...ganizacniJednotka
  • 21110
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