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中文摘要：
通过模拟试验的方法探讨了在不同H2SO4侵蚀环境下不同龄期（0～28d）的水泥土表观变化和抗压强度衰减规律，得出了水泥土表面腐蚀程度随着侵蚀时间的增长和H2SO4介质浓度的增大而增加，水泥土抗压强度随H2S04浓度的增大而减小；分析了H2SO4溶液的pH值和SO4^2-浓度随时间的变化关系，得出随着时间的增长侵蚀溶液的pH值增大，SO4^2-浓度则呈下降趋势。研究认为：受H2SO4侵蚀的水泥土强度改变与环境溶液的pH值、SO4^2-浓度和时间密切相关。在此基础上建立了考虑H2SO4侵蚀环境下pH值、SO4^2-浓度、时间多因素的多元线性回归的水泥土强度Q—T，pH，S模型，经对比预测值与实测值，证明两者比较接近，差值说明模型的具有一定的可行性，可供工程设计参考。
英文摘要：
In order to simulate and study the corrosion effect process such as the changes of corrosive degree of surface and unconfined compression strength of cemented soil samples aged from 0 day to 28 days under different pH values and SO4^2- concentrations of corrosive solutions, a series of tests were conducted on the cemented soil blocks. The results of test show that the corrosive degree of samples surface is increasing and the unconfined compression strength is decreasing with the increase of corrosive solution concentration at the same corrosion time, and the corrosive degree is increasing with the corrosive time. The test of corrosive environment indicates that the pH value is increasing and the SO4^2- concentration is decreasing with the increase of corrosive environment at the same corrosion time. So it is concluded that the compressive strength is closely related to the pH value, SO4^2- concentration of corrosive environment and the corrosive time. Finally a compression strength forecast model is set up which is called Q-T, pH, S strength model, and takes accounts of the pH value, SO4^2- concentration and the corrosive time. The predicted and measured values are close so that the accuracy of model is rather high and the model could be used in practical design.
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