Granulometric Composition Particulars of Lithoidal Clay Raw Material as Determined by Laser Diffraction

Resumo

The results of a determination of the granulometric composition of lithoidal clayey raw material with different degrees of lithifaction — argillaceous clays, argillites, clayey shales — by means of laser diffractometry are presented. The particulars of the granulometric composition of these rocks as well as the effect of their dispersion duration and intensity are determined. It is shown that laser diffractometry can be used to evaluate the quality of raw materials of this type for the production of different types of ceramic articles.