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《Sichuan Building Science》 2013-01
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Dynamics model for hydration of cement curing under isothermal condition based on Extended Freundlich

LI Zhanyin 1,DONG Jihong2(1.School of Civil Engineering,Yancheng Institute of Technology,Yancheng 224003,China; 2.School of Bioengineering and Chemistry,Yancheng Institute of Technology,Yancheng 224003,China)  
A hydration rate equation for cement curing under isothermal condition was inferred firstly through the principle of chemical reaction dynamics in this article.Hydration kinetic equations for cement were represented by the degree of hydration.Then accumulated heat of hydration of cement curing under 20±1℃ condition was tested by union two test metheds.Curve of hydration rate based on hydration degree was deduced.According to the development of the curve,the appropriate fitting function was selected.As a result,the model of Extended Freundlich was advanced.Correlation coefficient between test results and the model of Extended Freundlich up to 0.98682.So the model of Extended Freundlich is more suitable for the dynamics equation of hydration of cement curing under isothermal condition(changing law for the rate of hydration).
【CateGory Index】: TQ172.1
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