Patent ID: 8071937

Claim:
A material property gauge for determining a property of a material, the material property gauge comprising: (a) a nuclear density gauge for measuring the density of a material, the nuclear density gauge comprising: a radiation source adapted to emit radiation into the material; a radiation detector operable to produce a signal representing the detected radiation; and a first material property calculation function configured to calculate a value associated with the density of the material based upon the signal produced by the radiation detector; and (b) an electromagnetic moisture property gauge for determining a moisture property of the material, the electromagnetic moisture property gauge comprising: an electromagnetic field generator configured to generate an electromagnetic field including sweeping through one or more frequencies and penetrating into a material, wherein the material includes at least one of a pavement material, aggregate base material, concrete, and a soil material; an electromagnetic sensor configured to determine a frequency response of the material to the electromagnetic field across the one or more frequencies; and a second material property calculation function configured to correlate the frequency response to a moisture property of the material and to calculate a value representing the moisture property; and (c) a third material property calculation function for determining a material property of the material based on the value associated with the density of the material and the value representing the moisture property of the material.