Response Laws and Prediction Model of Temperature Change in Concrete in a Controlled Climate
JIANG Jian-hua
YUAN Ying-shu
SUN Hong-ping
MA Wen-bin
Abstract：An artificial climate environment was used to control the temperature of instrumentedconcrete specimens. The response of the concrete to heating and cooling was studied experi-mentally by measuring the temperature at fixed positions in the specimens. The thermal con-ductivity of the concrete was determined at the same time. The experimental observations arecompared to a predictive model. The results show that the times for the temperature to equili-brate with ambient temperature vary with the specimen. The thermal properties of the concretechange as the concrete ages. The thermal conductivity of the material is strongly influenced byboth water cement ratio and the total water content of th-e concrete. The effect of these varia-bles follows a linear relationship. By comparing the theoretically predicted response curves tothe experimentally derived ones it was possible to prove the reliability of the predictive model.
Keywords：artificial climateconcretetemperatureresponseprediction model
Publication Date：2009-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 800-805 )