Experimental Study on Cemented Soil in Sulfate Radical Corrosive solution

: The cemented soil is a widely used method to stabilize the weak soil. It would be working in polluted environment, and be influenced by environmental pollution such as acid rain, seawater invasion or industrial pollution, which may lead to deterioration of the structure. In order to simulate and study the erosion effect process including as the changes of corrosive degree of surface, compression strength of cemented soil samples and SO 42-concentration of corrosive solutions, a series of tests are conducted on the cemented soil blocks cured in different concentrations of MgSO 4 , H 2 SO 4 and Na 2 SO 4 solutions. The test results show that the corrosive degree of the sample surface increases while the compression strength decreases with the increase of the corrosive solution concentration at the same erosion time, and that the corrosive degree increases with the corrosive time. The influence of inorganic compound solutions on the cemented soil follows the order of Na 2 SO 4 > MgSO 4 > H 2 SO 4 . By analyzing the mechanism, the corrosive type of H 2 SO 4 and MgSO 4 solutions to cemented soil is a composite type of resolving and crystallizing combination, and Na 2 SO 4 solution to cemented soil is a composite type of dissolving and crystallizing combination.