Table 4: Categorization based on chemical test results of clay sample stabilized with pozzolan, cement, and pozzolan plus 1.5 percent cement.

AdditiveCuring time
1 day7 days14 days35 days90 days

Pozzolan 2%IntermediateIntermediate
Pozzolan 5%DispersiveDispersiveIntermediateNondispersive
Pozzolan 8%IntermediateIntermediate
Cement 1%NondispersiveNondispersive
Cement 2%IntermediateIntermediateNondispersiveNondispersiveNondispersive
Cement 3%NondispersiveNondispersive
Cement 4%NondispersiveNondispersive
Pozzolan 2% + 1.5% cementNondispersiveNondispersive
Pozzolan 5% + 1.5% cementNondispersiveNondispersiveNondispersiveNondispersiveNondispersive
Pozzolan 8% + 1.5% cement
NondispersiveNondispersive