基于正交试验的水泥与电石灰固化淤泥土劈裂强度研究

Study on the Splitting Strength of Cement and Electric Lime Solidified Silt Soil Based on Orthogonal Test

利用水泥与电石灰作为复合固化材料固化淤泥土,基于正交试验方法,设计了水泥、电石灰复合固化淤泥土的配合比,进行击实试验,确定了各混合料的最大干密度与最佳含水率,制备了劈裂强度试样并进行规范养护,利用SPSS 17.0对劈裂试验结果进行正交分析。结果表明,电石灰对复合固化淤泥土的7 d劈裂强度影响较大,水泥对复合固化淤泥土的28 d劈裂强度影响较大。

Cement and electric lime are used as composite solidifying materials to solidify the silty soil.Based on the orthogonal test method,the mixture ratio of cement and electric lime composite solidified silty soil is designed,and moisture-density test is done.The maximum dry density and optimal water content of each mixture are determined by the compaction test.The splitting strength samples are prepared,and standardized curing is carried out.SPSS 17.0 is used for orthogonal analysis of the splitting test results.The results show that the effect of electric lime on the 7 d splitting strength of composite solidified silt soil is greater,and the effect of cement on the 28 d splitting strength of composite solidified silt soil is greater.