ABSTRACT

Sands with heterogeneous mineralogy are naturally occurring. However, much remains unknown about the crushing behavior of sands composed of grains that vary in hardness. This paper documents an experimental study that examines the role of relative mineral composition on the one-dimensional crushing behavior of uniform sand mixtures composed of selected percentages of soft and hard grains. Load deformation, i.e., e-logσ curves, and post-crushing particle size distributions for the independent mineral components provide insight into the effect of relative mineralogy on crushing behavior.