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

Table 2

Summary of standards and specifications.

Tests conducted	Test methods
	AASHTO	Astem	IS
X-ray fluorescence equipment (spectro X-lab)		C618-03
Moisture content	T265
Grain size analysis		D422-63
Atterberg limits	T89 & 90
Soil classification		D2487-98
Specific gravity		D854-83
Standard proctor compaction	T99-94	D698-98
CBR	T193-93	D1883
Free swell index			2720 (part 40)