中文摘要：

结合某工程粉质粘土水泥土进行室内配合比的试验成果,研究水泥土无侧限抗压强度与水泥掺入比及龄期的变化关系。研究结果表明：水泥土的无侧限抗压强度随着水泥掺入比和养护龄期的增加而增大;水泥土无侧限抗压强度的增大速率随龄期的增大而逐渐减小,随着水泥掺入比的增加而增大;随着水泥掺入比的增加,水泥土的破坏模式由塑性破坏逐渐变为脆性破坏;通过回归分析,建立水泥土的无侧限抗压强度随掺入比及龄期的数学表达式。该研究成果可供类似工程参考。

英文摘要：

Based on laboratory test results of cement - soil mixing proportion of silty clay in a project, variation of the unconfined compressive strength （UCS） was studied with cement ratio and curing period. The results indicate： the UCS of cemented -soil increased with the increasing cement ratio and curing period. The increase velocity of the UCS decreased gradually with the increasing of curing period, but increased with the increasing of cement ratio. The failure mode changes into fragile failure from plastic failure gradually with the increasing of cement ratio. Through regressive analysis on the laboratory testing resuhs of cement - soil, the mathematical expression among UCS of cement - soil and cement ratio and curing period were established. This study is helpful to construction and design for other similar project.