Search results for "particle crushing"

The evolution of grain-size distribution of sands under 1-D compression

2009

Crushing of particles is a fundamental mechanisms leading to deformation of particulate materials at medium and high stresses. As crushing progresses, the grain-size distribution undergoes modifications, causing changes of the porosity, grain-to-grain contacts and of their density (”packing density” and “grain contact”). The main aim of the research is the identification of trends in the modifications of characteristic diameters (D10, D15, D25, etc.) in function of the applied stress s´v. Results of a laboratory research programme on the crushing of dry sands compressed under one-dimensional conditions, at vertical effective stresses ′v up to 120 MPa, are reported in the paper. Tests have …