水泥改良青海黄土的力学性能研究

Study on the mechanical properties of Qinghai loess improved by cement

为了研究水泥改良青海地区黄土的力学性能,特通过室内试验来研究。通过控制变量法研究水泥掺量和改良土的压实度以及养护龄期对水泥改良青海黄土的力学性能的影响。基于上述试验得出以下结论:改良土的力学性能随着水泥掺量和改良土的压实度以及改良土的养护龄期的增加,力学性能变好;水泥掺量和改良土的压实度以及改良土的养护龄期增加到一定值后,改良土的无侧限抗压强度增长的速率减小。

In order to study the mechanical properties of Qinghai loess improved by cement,Especially through indoor experiments to study.The influence of cement content,compaction degree of improved soil and curing age on the mechanical properties of Qinghai loess was studied by controlling variable method,Based on the above experiments,the following conclusions are drawn:The mechanical properties of improved soil become better with the increase of cement content,compaction degree and curing age of improved soil;when cement content,compaction degree and curing age of improved soil increase to a certain value,the growth rate of unconfined compressive strength of improved soil decreases.