石灰改良高液限土路用性能的试验研究

Experimental study on the road properties of high liquid limit soil improved by lime

针对高液限土的特点,采用掺入不同剂量生石灰进行高液限土的改良试验,研究其物理力学性质和强度变化规律.采用室内试验的方法,确定了石灰的最佳掺量.研究结果认为,高液限土经掺入6%的生石灰改良处治后,路用性能良好,可用于高速公路的路基填料.

Based on the characters of high liquid limit soil, the modified experiments are completed by adding different ratios of lime to modify the high liquid limit soil, and the physical and mechanical properties and the change laws of strength are studied. The optimum lime mixture is determined by experiments in the lab. The results show that high liquid limit soil can be well used as subgrade filling of expressway only after being treated with 6% lime.