AASHTO PP 98
Standard Practice for Asphalt Surface Dielectric Profiling System using Ground Penetrating Radar
|Publication Date:||1 January 2020|
This standard specifies the equipment and software requirements for a dielectric profiling system (DPS). Calibration and verification procedures are also detailed.
A DPS uses ground penetrating radar (GPR) technology to continuously measure asphalt compaction quality up to highway speeds. The DPS system reports the asphalt surface dielectric constant which is strongly correlated to asphalt air void content (FHWA/TX-92/1233-1).
A DPS may be a single- or multi-channel system and may be cart or vehicle-mounted.