CONSOLIDATED AND UNDRAINED TRIAXIAL COMPRESSION CHARACTERISTS OF SLAG-CLAY MIXTURE WIYH LOW ADDITION RATE

Abstract

 In this study, the consolidated and undrained triaxial compression tests were conducted on relatively low strength slag-clay mixtures with low addition rate, and the results were evaluated and discussed together with the triaxial compression properties of the base material clay.

 The main characteristics obtained were as follows: i) the isotropic consolidation property of the slag-clay mixtures is the existence of consolidation yield stress as with the compressive property of ordinary clays; ii) the ratio of consolidation yield stress to uniaxial compressive strength for slag-clay mixture is 1.4, which is slightly larger than 1.2 for clay; iii) normalizing the relationship between the differential stress and the consolidation pressure by the consolidation yield stress, a failure line with a different slope can be drawn between the overconsolidation and normal consolidation regions; iv) the failure line in the normal consolidation regions is higher than that of the original clay.