Effect of Sand and Sand-Lime Piles on the Behavior of Expansive Clay Soil

Table 5

Comparison of SPO (%) obtained from equation (3) with that from Hergül [51].

RAR (%)	Experimental values obtained by [50]					Predicted values from equation (2)
	7 kPa	25 kPa	50 kPa	100 kPa	150 kPa	7 kPa	25 kPa	50 kPa	100 kPa	150 kPa
0	34	13.7	8.9	4.5	3.8	34	13.7	8.9	4.5	3.8
5	31.5	12.8	8	4	3.2	31.543	11.875	7.4219	3.711	2.9688
10	29.2	13.1	7.8	4.1	3	29.264	11.275	6.7135	3.5289	2.5821
20	26.1	9.9	7.2	3.3	1.6	25.188	7.3341	5.3339	2.4447	1.1853
R^2						0.9997	0.9951	0.9956	o.9845	0.3632