[1061] Evaluation of equivalent age considering the influence of relative humidity
Keywords:equivalent age、relative humidity、specimens size、temperature、有效材齢、温度、湿度、試験体寸法
This paper proposed a new equivalent age function which allowed to calculate the equivalent age at different curing conditions of temperature(T) and relative humidity (RH). Based on the experimental compressive strength of three different size specimens at different curing condition, the proposed relative humidity influence factor is formulated. The result indicated that the experimental equivalent age increased with the increasing of curing relative humidity. Equivalent age at 100%RH exhibited much high value than that of other relative humidity. The proposed hyperbola function could precisely fit the relative humidity influence factor at different ages. By the comparison between experimental and evaluated equivalent age of different sizes, it can be found that smaller size specimen showed more accuracy than bigger size specimens.