Experimental Study on Main Physical Parameters Controlling Shear Strength of Unsaturated Loess

Table 1

Basic physical properties of test soil.

Type of soil	Specific gravity	Liquid limit (%)	Plastic limit (%)	Plasticity index
Loess	2.72	24.5	14.6	9.9
Sandy silt	2.69	—	—	—
Quartz flour	2.65	—	—	—