TRANSVERSE STRENGTH OF BALL CLAY-SAND AND BALL CLAY-FLINT MIXTURES1

Abstract

Tests of dry transverse strength on 30 ball clays using mixtures of 50% ball clay + 50% flint, and 50% ball clay + 50% standard silica sand, which demonstrate the method adopted as a tentative standard and which specify the use of silica sand as the nonplastic, are unsatisfactory for determining the dry transverse strength of highly plastic clays. More consistent results were obtained with flint as the nonplastic.