Swelling Potential of Clayey Soil Modified with Rice Husk Ash Activated by Calcination for Pavement Underlay by Plasticity Index Method (PIM)

Table 2

Particle size distribution (PSD) of test materials.

Materials	% passing sieve (mm)
	19	6.35	4.75	2.36	1.18	0.6	0.425	0.3	0.15	0.075	Pan
Clay soil	100	100	94	88	82	76	70	58	51	45	0
Rice husk ash	100	97	89	75	62	55	42	35	22	14	0