ABSTRACT
The degradation law of mechanical properties of ordinary concrete, polyacrylate-modified concrete, and polyvinyl acetate-modified concrete immersed in sulfuric acid and citric acid at the same concentration was studied. The results show that concrete's compressive strength and splitting tensile strength in sulfuric acid and citric acid environments decrease. Citric acid has the most significant influence on the compressive strength and breaking tensile strength of concrete. The corrosion of concrete is the most serious. In the same concentration of corrosion solution, the retention rates of compressive strength and splitting tensile strength of polymer-modified concrete are higher than those of ordinary concrete at the same corrosion age, and the performance improvement of polyvinyl acetate is the most obvious. It can significantly improve the corrosion resistance of concrete.
