Experimental Research on Mechanical Property and Environmental Safety of an Industrial Residue Waste Subgrade Material

Table 1

Results of CBR test.

CD^1 (%)	No	Water absorption and swelling capacity				CBR values
		WA^2 (%)	Average/SD^3 (%)	SI^4 (%)	Average/SD^3 (%)	CBRs^5 (%)	Average/SD^3 (%)	CBRws^6 (%)	Average/SD^3 (%)
100	1	7.01	6.92/0.14	5.42	5.47/0.05	41.79	42.37/1.53	79.52	78.74/0.73
	2	6.98		5.51		44.11		78.65
	3	6.76		5.48		41.21		78.06
96	1	8.12	7.62/0.43	5.92	5.84/0.07	38.86	38.41/0.44	71.38	70.16/1.13
	2	7.34		5.83		38.39		69.14
	3	7.41		5.78		37.99		69.96

¹CD = compaction degree; ²WA = water absorption; ³SD = standard deviation; ⁴SI = swelling increment; ⁵CBR_s = CBR soaked with water; ⁶CBR_ws = CBR without soaking.