Study on corrosion effects under sulfate attack of concrete at a dry-wet circulation environment

In this paper,the double damage under dry-wet circulation and sulfate attack of concrete were investigated in order to study the durability of concrete building.Combine with engineering enviroment,four concentrations were set to contrast the standard test with sodium sulphate solution thawing test in dry-wet circulation,and analyze the experimental results to show that the respective damage mechanism to the concrete durability,moreover,it is offered reference value of engineering maintenance to a certain extent.