چكيده لاتين :
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. An extensive test program was conducted on
kaolin-gravel mixtures to investigate the effects of aggregate on the cyclic deformational
properties, including shear modulus and damping ratio. Test results reveal that shear
modulus for various mixtures, depends on aggregate content, shear strain amplitude,
number of loading cycles and initial confining stress. Meanwhile damping ratio mainly
depends on aggregate content and shear strain amplitude and is less affected by the
number of loading cycles
