Effects of Corn Cob Ash as Partial Replacement of Cement for Stabilization of an Expansive Clay

Table 8

CBR and CBR swell data for C: CCA blending stabilization.

C: CCA ratio	% value		% CBR swell	Penetration (mm)	CBR (%)	Max CBR (%)	ERA requirement	Remark
	C	CCA
0	0	0	4.11	2.54	2.62	2.62	>3%	Poor
				5.08	2.45
1 : 1	4	4	2.64	2.54	6.81	6.81		Satisfied
				5.08	5.88
1 : 2	2.7	5.3	2.49	2.54	6.72	6.72		Satisfied
				5.08	5.82
1 : 3	2	6	2.94	2.54	6.68	6.68		Satisfied
				5.08	6.52
1 : 4	1.6	6.4	3.23	2.54	5.54	5.54		Satisfied
				5.08	5.30