Bentonite makes the mortar stable by suspending cement particles and sand during mixing and injection when it is added into cement slurry or mortar.
Bentonite minimizes the seperation of water in cement – water mixture
When Bentonite added into cement slurry, it increases the diffusion degree in fine grained alluvion. Therefore cement waste is avoided. Mixtures act as a fluid, a homogenous hardening occurs when mixing is stopped and it gains high strength.
Bentonite repairs the cracks on the walls constructed for preventing water leak. It provides viscosity to cement slurry and increases the diffusion of the slurry into the thin cracks.