الخلاصة:
The present work focuses mainly on the use of bentonite of Maghnia which is calcium type and is mixed
with other clay materials for use in the construction of traditional porcelains. This study considers the properties
of four mixtures with proportions of 0 to 15wt. % of bentonite. The rheological results of the mixtures obtained
are rich in plastics components and this increases the rheological parameters namely the viscosity, the density,
the residue on sieve of 0.063μm diameter, pH and the thixotropy.
At high viscosity appears rigidity that led to low shrinkage minimizing cracks from appearing of the
layer paste deposited on the mold in a limited time, these variations are strongly related to electrolytes which
ensure basic pH (9.73) of the medium, the hydrophilic behavior, and to the phenomenon of swelling of the
bentonite clay. Finally, this study has shown that 10%wt. % mixture uploading of bentonite ensures good results
rheological adequate for traditional porcelains
