Improvement of the rheological properties of clayey suspensions treated with Bacillus mucilaginosus culture liquid

Author： Dyatlova E.   Kakoshko E.   Biryuk V.   Markevich R.  

Publisher： Springer Publishing Company

ISSN： 0361-7610

Source： Glass and Ceramics, Vol.67, Iss.3-4, 2010-09, pp. : 89-92

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Abstract

The effect of Bacillus mucilaginosus culture liquid on the rheological properties of clayey suspensions is investigated. It is established that the culture liquid acts as a surfactant and promotes fluidization of a clayey suspension while lowering the moisture content and increasing its sedimentation stability, which makes it possible eliminate the use of electrolytes without degrading the basic technological parameters of the slip and the properties of the intermediate product. This expands the fluidized state interval of slip, lowers the viscosity and thickening factor, and increases the rate of ceramic cast accumulation in a gypsum mold.

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