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

Table 5

CBR and CBR swell data for cement-treated sample.

% of cement	% CBR swelling	Penetration (mm)	CBR (%)	Max CBR (%)	ERA requirement	Remark
0	4.11	2.54	2.62	2.62	>3%	Poor
		5.08	2.45
2	3.52	2.54	5.04	5.04		Satisfied
		5.08	4.58
4	3.37	2.54	4.94	6.16		Satisfied
		5.08	6.16
6	2.94	2.54	6.23	7.11		Satisfied
		5.08	7.11
8	2.64	2.54	10.30	12.25		Satisfied
		5.08	12.25