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AASHTO PP 98
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AASHTO PP 98
AASHTO PP 98 2020 Edition, 2020 Standard Practice for Asphalt Surface Dielectric Profiling System using Ground Penetrating RadarMore info
Description / Abstract:
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). As the dielectric constant increases, air void content decreases.
A DPS may be a single- or multi-channel system and may be cart or vehicle-mounted.
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). As the dielectric constant increases, air void content decreases.
A DPS may be a single- or multi-channel system and may be cart or vehicle-mounted.