Geotechnical and Physico-Chemical Characterization of Low Lime Fly Ashes

Table 3

Stability behaviour of colloids at different zeta potential values.

Zeta potential (mV)	Stability behaviour of the colloid
0 to ±5	Rapid coagulation or flocculation
±10 to ±30	Incipient stability
±30 to ±40	Moderate stability
±40 to ±60	Good stability
>±60	Excellent stability