Thermal analysis and adiabatic calorimetry for early-age concrete members

This paper describes a procedure for thermal analysis on early-age concrete structures with experimentally obtained concrete adiabatic temperature rise and interface conductance between steel formwork and concrete. During hydration, concrete is considered in the analysis as non-homogeneous and the d...

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Bibliographic Details
Published inJournal of thermal analysis and calorimetry Vol. 122; no. 2; pp. 937 - 945
Main Authors Lin, Yun, Chen, Hung-Liang
Format Journal Article
LanguageEnglish
Published Dordrecht Springer Netherlands 01.11.2015
Springer
Subjects
Analysis
Analytical Chemistry
Calorimetry
Chemistry
Chemistry and Materials Science
Inorganic Chemistry
Measurement Science and Instrumentation
Physical Chemistry
Polymer Sciences
Sensors
Thermal properties
Interface conductance
Thermal convection
Adiabatic temperature rise
Heat of hydration
Mass concrete
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Summary:This paper describes a procedure for thermal analysis on early-age concrete structures with experimentally obtained concrete adiabatic temperature rise and interface conductance between steel formwork and concrete. During hydration, concrete is considered in the analysis as non-homogeneous and the degree of hydration is dependent on both thermal loading and thermal properties development. A thermal convection model was implemented to simulate the external heat loss. Experimentally, two 1.2-m concrete cubes were constructed with embedded temperature sensors. The measured temperature time histories correlate well with the calculated values using a finite element model developed for this study. The modeling method and the experimental procedures developed are able to accurately predict the temperature evolution within an early-age concrete structure.
ISSN:1388-6150
1588-2926
DOI:10.1007/s10973-015-4843-2