Abstract: Cemented sand and rockfill (CSR) material is a new type of material for dam construction, with a
wide application prospect. Its material properties lie between concrete and rockfill material. This paper
presents strain-stress curves of CSR material under different confining pressures and ages obtained from a
great number of large-scale triaxial tests, and describes the influences of these two factors, including
variations in breaking strength and volumetric deformation with the factors and variation in shear strength
with the age. A regression analysis of test data shows the correlation of breaking strength with confining
pressure and age and the correlation of shear strength with age. The results would be useful for development
of constitutive models and design of dams with CSR material.