Abstract: A system including: a distance sensor system located/oriented/configured to measure a deformation of a geomaterial portion due to compaction of the geomaterial portion; and an electronic processing system configured to: receive signals from the distance sensor system representing the measured deformation, and automatically generate an estimate/measure of a geomaterial layer property of the geomaterial portion based on: the measured deformation; and a pre-defined relationship/model that associates deformation values with geomaterial layer property values (e.g., density values, stiffness values, modulus values, energy values, or layer thicknesses during compaction).