Experimental Research on the Influence of Dry-Wet Cycle on Concrete Compressive Strength

Abstract

In order to study the change of compressive strength of concrete under dry and wet cycle environment, the method of 60 C constant temperature drying and liquid water immersion is used to simulate the dry and wet cycle environment of concrete, and the concrete test pieces of different ages are subjected to compression test. The test results show that with the increase of the number of dry and wet cycles, the compressive strength of concrete generally increases first and then decreases. During the dry and wet cycle, the compressive strength of concrete specimens and the number of cycles showed a significant secondary correlation, and the number of cycles in which the compressive strength of concrete specimens of different ages reached the peak was basically the same. With the increase of the age of concrete specimens, the trend of the impact of the dry and wet cycle environment is basically the same.