Experimental Study and Mechanism Analysis of Cemented Soil under MgSO4 Corrosive solution
In order to simulate and study the erosion effect process such as the changes of corrosive degree of surface,compression strength of cement soil samples and Mg2+ concentration and SO42-concentration of corrosive solutions,a series of tests are conducted on the cement soil blocks cured in different concentrations of MgSO4 solutions,including taking photos,compressive strength tests,and measuring Mg2+ and SO42-concentrations.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.Chemical analysis of corrosive environment indicates that the Mg2+ concentration decreases and the SO42-concentration shows a parabolic trend with the corrosive time.So it is concluded that the corrosion of MgSO4 solution to cemented soil is a composite action including resolving and crystallizing corrosions.Finally,a strength model of cement soil is set up based on the relationship of compressive strength and Mg2+ concentration and SO42-concentration and it may be used in practical design.
Cement soil compressive strength corrosive environment corrosive mechanism
Han Pengju Bai Xiaohong David Du
College of Architecture and Civil Engineering of Taiyuan University of Technology, Taiyuan,030024,Ch College of Architecture and Civil Engineering of Taiyuan University of Technology, Taiyuan,030024,Ch
国际会议
上海
英文
80-80
2012-10-19（万方平台首次上网日期，不代表论文的发表时间）