PLASTICITY OF CLAY1

Authors

  • Leon E. Jenks


  • 1

    Presented at the Annual Meeting, American Ceramic Society, Atlantic City, N. J., February, 1928. (White Wares Division.)

ABSTRACT

The cause of plasticity of clay is the formation in the moistened clay of a continuous external phase through the action of water in making gelatinous the material that forms the enveloping surface around the non-gelatinous particles and aggregates present in the clay. Peptizing and flocculating effects of electrolytes and organic matter are discussed. A possible method for evaluating the relative plasticity of clays and the results obtained on some commercial clays using this method, are given.

Ancillary