Field Density Tests
Field Density Testing (Nuclear or Sand Cone) is performed in the field during construction on soil that is being placed in a fill and must provide a sufficient level of compaction to support a structure or roadway. This test compares the Laboratory Compaction Density to the Field Density in order to determine the percent compaction achieved.
Field density test being run with nuclear gauge
Jeff Braun is running a field density test on roller compacted fill. The machine he is using is called a nuclear gauge. The gauge measures the moisture and density of the soil (or rock) on which it is placed. GET has four gauges which are strictly regulated for safety.