Experimental Study on the Feasibility of Using Water Glass and Aluminum Sulfate to Treat Complications in High Liquid Limit Soil Subgrade

Table 2

Results of quick shear experiment.

Time of dry and wet cycle		0	3	6	9
Cohesion; kPa	Untreated soil	47.4	31.6	25.0	23.6
	Improved soil	51.7	42.2	39.4	38.7
Internal friction angle; degree	Untreated soil	23.0	17.8	13.1	11.8
	Improved soil	37.2	34.6	32.7	29.6
Decrease percentage of cohesion; %	Untreated soil	—	33.4	47.3	50.2
	Improved soil	—	18.5	23.8	25.2
Decrease percentage of internal friction angle; %	Untreated soil	—	22.5	43.1	48.7
	Improved soil	—	7.1	12.1	20.4