Measurement of Apparent Activation Energy of Portland Cement Based Materials

Chris Ferraro

University of Florida


The apparent activation energy of Portland cement based materials is a critical parameter for the calculation of maturity and equivalent age characteristics of concrete. The traditional, standardized method (ASTM C1074) utilizes the monitoring of temperature-time history and the compressive strength testing of specimens.  In this research, the use of isothermal conduction calorimetry for the determination of apparent activation energy is investigated and compared with the traditional, standardized method.  Several computational methods are used for the calculation and comparison of the apparent activation energy of cementitious materials using the isothermal conduction calorimetry testing. Accordingly, several techniques are used for the comparison of the apparent activation energy using compressive strength methods. 


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