Effect of Alkali Seepage Erosion on Physical and Mechanical Properties of Laterite

Table 2

K, n, and R_f values of laterite at different alkaline-solution concentrations and permeation times.

pH	Time (d)	K (kPa)	n	Rf
11	30	639.24	0.719	0.97
11	90	549.26	0.705	0.98
11	150	460.37	0.746	1.00
11	210	331.59	0.739	0.97
11	300	276.56	0.718	1.01
12	30	516.89	0.758	0.97
12	90	396.88	0.718	0.98
12	150	327.42	0.684	0.98
12	210	190.32	0.743	1.00
12	300	169.25	0.747	0.86
12.4	30	369.07	0.754	1.00
12.4	90	293.23	0.724	1.00
12.4	150	220.51	0.750	0.97
12.4	210	165.94	0.728	1.00
12.4	300	139.83	0.742	1.00
12.7	30	237.52	0.747	0.99
12.7	90	214.79	0.718	0.99
12.7	150	173.47	0.725	0.99
12.7	210	135.84	0.786	1.01
12.7	300	128.79	0.714	0.99
13	30	199.18	0.745	1.00
13	90	153.28	0.741	0.99
13	150	113.36	0.842	0.97
13	210	65.78	0.724	0.97
13	300	66.51	0.725	0.96