| By researching the concrete building of JingDian Great High Lifts Irrigation Project (GanSu province) in the high salinity of groundwater environments, we analyze the factors of sulfate attack of concrete, study the mechanism of sulfate attack of hydraulic concrete building, and we think the results should be put into true activities so that we can improve the using of hydraulic concrete building.Sulfate attack of concrete to chemical attack is the most widespread and most common form, has been the durability of the structure of an important part, although so far raised sulphate resistance test methods there are many types, but each method have some limitations, there is no one way to quickly reveal the true mechanism of sulfate attack of concrete, especially for long-term prediction of concrete sulfate attack in a variety of performance environments. Therefore, the test method against sulfate attack to conduct a comprehensive study of the system it is particularly important.GB in the current test method is mainly used for cement cementing material itself sulfate resistance should be evaluated with a cement mortar specimen tested manner. As the concrete sulfate resistance not only with its cementitious materials used in cement, but also compact and so its a great relationship, so researchers in different concrete sulfate resistance study, in accordance with the purpose of their research the different tests using different methods. |
