Research Of Perforcement Degradation Law Of Reinfoeced Concrete Structure Corroded By Sulphate Salt And Chloride

Reinforced concrete structure has been created for the modern world very brilliantsuccess, but over time, the durability of reinforced concrete is increasingly prominent, dueto lack of durability engineering problems arise increasingly frequent, the economic loss iscaused also more and more huge. Therefore, the durability of reinforced concrete structuresis increasingly paying attention by academic world, scholars and engineers and this issue isincreasingly becoming an urgent need to address a major issue. This paper based on theactual distribution of salts and engineering practice in China, some basic research about thedegradation law and prediction model of reinforced concrete structures corroded by sulfateand chloride is done.In this paper, use accelerated corrosion method in the laboratory, the degradation lawof mechanical properties of concrete corroded by sulfate and chloride were studied, andbased on the basis of the test to established concrete degradated constitutive modelassociated with corrosion degree. The bending and shear degradation law of test beam withdifferent erosion degree and corroded by sulfate and chloride salts was studied, and thecalculation model of many kinds of performance was established based on test. Meanwhile,taking advantage of large-scale non-linear of finite element software ABAQUS to validatethe test results, no tests to make up for the analysis. Based on this work, I hope thefuture-oriented basic research have used to this issue, as well as provide a reference for theactual engineering corroded by sulfate salt and chloride.