It is an excellent tool for identifying construction anomalies that would otherwise go undetected duringconstruction where only density or percent compaction measurements were used. By measuring stiffness, theGeoGauge can reveal and thus help reduce variabilities in layer properties, which density measurements may miss, thus allowing corrective actions to be taken duringconstruction to ensure that the highest quality base and subgrade are achieved despite variations in materials used.
The GeoGauge works by applying a vibrating force at 25 specific frequencies, which produce small deflections in the material. The resulting displacement is measured by the GeoGauge and displayed as stiffness determined by the ratio of the force to deflection. The GeoGauge produces stress and strain levels common for pavement, bedding and foundation applications.