Effects of Using Pozzolan and Portland Cement in the Treatment of Dispersive Clay

Table 4

Categorization based on chemical test results of clay sample stabilized with pozzolan, cement, and pozzolan plus 1.5 percent cement.

Additive	Curing time
	1 day	7 days	14 days	35 days	90 days
Pozzolan 2%				Intermediate	Intermediate
Pozzolan 5%	Dispersive	Dispersive		Intermediate	Nondispersive
Pozzolan 8%				Intermediate	Intermediate
Cement 1%				Nondispersive	Nondispersive
Cement 2%	Intermediate	Intermediate	Nondispersive	Nondispersive	Nondispersive
Cement 3%				Nondispersive	Nondispersive
Cement 4%				Nondispersive	Nondispersive
Pozzolan 2% + 1.5% cement				Nondispersive	Nondispersive
Pozzolan 5% + 1.5% cement	Nondispersive	Nondispersive	Nondispersive	Nondispersive	Nondispersive
Pozzolan 8% + 1.5% cement				Nondispersive	Nondispersive