مدول برشي ديناميكي مخلوطهاي رس لاغر- دانه

Dynamic Shear Modulus of Beads- Lean Clay Mixtures

Composite clay is a mixture of clay, as the main body and aggregates, which are floating within the clayey matrix. Undrained behavior of composite clays in its natural or compacted state e.g., core material of embankment dams has a great importance for the geotechnical engineers. In this paper, the results of an experimental study on dynamic properties (i.e., shear modulus and pore pressure) of beads-lean clay mixtures are presented. It is shown that shear modulus is highly affected by beads content while beads surface does not affect it. It also appears that beads content has a little impact on pore pressure build-up, while the beads surface does not affect it. However, loading path has a definite influence on mechanical behavior of the mixtures.