Upscaling semi-adiabatic measurements for simulating temperature evolution of mass concrete structures
Result description
Thermal analysis of mass concrete is often carried out through finite element (FE) analysis. The heat release rate in a material point can be determined from a small-scale isothermal calorimeter. Nonetheless, isothermal calorimeter is generally an expensive device and lacks practicality. In that light, this paper proposes a low-cost semi-adiabatic calorimeter setup complemented with a FE analysis. Such a combination provides evolution of hydration heat under isothermal temperature and enables upscalingto the temperature evolution in mass concrete structures. The upscaling process is demonstrated on three mass concrete blocks. Initially, semi-adiabatic measurements start on 14 dm 3 concrete cube to identify the heat release rate. Next, the calibrated hydration model is upscaled and validated on a 1.0 m 3 concrete cube and two mass concrete foundation blocks with 511 and 1,050 m 3.
Keywords
Cement hydrationMass concreteUpscalingTemperatureSemi-adiabatic experiment
The result's identifiers
Result code in IS VaVaI
Result on the web
DOI - Digital Object Identifier
Alternative languages
Result language
angličtina
Original language name
Upscaling semi-adiabatic measurements for simulating temperature evolution of mass concrete structures
Original language description
Thermal analysis of mass concrete is often carried out through finite element (FE) analysis. The heat release rate in a material point can be determined from a small-scale isothermal calorimeter. Nonetheless, isothermal calorimeter is generally an expensive device and lacks practicality. In that light, this paper proposes a low-cost semi-adiabatic calorimeter setup complemented with a FE analysis. Such a combination provides evolution of hydration heat under isothermal temperature and enables upscalingto the temperature evolution in mass concrete structures. The upscaling process is demonstrated on three mass concrete blocks. Initially, semi-adiabatic measurements start on 14 dm 3 concrete cube to identify the heat release rate. Next, the calibrated hydration model is upscaled and validated on a 1.0 m 3 concrete cube and two mass concrete foundation blocks with 511 and 1,050 m 3.
Czech name
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Czech description
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Classification
Type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JN - Civil engineering
OECD FORD branch
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Result continuities
Project
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Materials and Structures
ISSN
1359-5997
e-ISSN
—
Volume of the periodical
48
Issue of the periodical within the volume
4
Country of publishing house
FR - FRANCE
Number of pages
11
Pages from-to
1031-1041
UT code for WoS article
000350889100017
EID of the result in the Scopus database
2-s2.0-84924851507
Basic information
Result type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP
JN - Civil engineering
Year of implementation
2015