Action spectrum of temperature in natural climate environment and prediction of temperature response in concrete

The temperature in concrete is a main factor influencing concrete carbonization, chloride diffusion and the corrosion rate of steel bars in the concrete. To predict the temperature response in concrete in a natural climate environment, the experiments for temperature response in concrete under artificial and natural climate environment conditions were carried out. The results indicate that the temperature responses in concrete show obvious hysteresis characteristics. A prediction model for temperature response in concrete was presented based on the behavior of the concreteʹs thermal conduction. Then, a method for processing the climate temperature data was devised using the mathematical principle of extreme difference dissection, through which a temperature action spectrum can be formed. In view of the above mentioned studies, the corresponding temperature response in the concrete could be predicted. Comparisons were carried out between the prediction and the measurement of the temperature responses and the result showed that they were consistent.