Compensation method for prediction of the adiabatic temperature rise of concrete from semi-adiabatic device

Abstract

Semi-adiabatic devices have been used for prediction of adiabatic temperature rise by compensating heat loss. Compensation of heat loss is only related to the maximum temperature rise. It does not consider the change of the reaction rate of hydration due to the different curing temperature of concrete in the semi-adiabatic device, even though the reaction rate is more important in terms of the prediction of the material properties of concrete. Therefore, an additional compensation method regarding the reaction rate of hydration is suggested to predict the adiabatic temperature rise from the semi-adiabatic device. The suggested method is verified by comparing the experimental results, and it improves the prediction by about 16 percent compared to the conventional method which only includes heat loss compensation. This research are very useful in construction fields where semi-adiabatic devices are often used instead of adiabatic calorimeter for economical reason.