Research on the Anti-Sulfate and Chlorine Corrosion Property of Concrete

In this paper wetting-drying cycle in the natural situation and increasing the concentration of sulfate solution is used in the laboratory , in order to accelerate the sulfate corrosion of concrete. The ultrasonic speed of sound on the opposite face is tested by ultrasonic technique regularly in order to reflect the change of concretes strength with the relative dynamic modulus.And at the same time the cube compressive strength test is used to detemine the corrosioned concretes intensity.Though the trend of relative dynamic modulus development which are in four different conditions to explain that the presence of chlorine ions affected the sulfate corrosion on concretes.Although in the compound solution, the corrosion degree should be depended on the concentration of sulfate ions and chloride ions in compound solution.