Effect of wet grinding on the particle size distribution and base exchange capacity of a non-plastic china clay

Abstract

A sample of a coarse variety of china clay was ground in a laboratory ball mill for different periods. Particle size distribution and b.e.c. of the different sampled obtained were measured. It was found that by grinding, the coarse particles were considerably reduced in size whereas fine particles were not appreciably affected. A linear relation between b.e.c. and specific surface calculated from particle size distribution data was obtained.