Ground Penetrating Radar (GPR) systems - GSSI


PaveScan® RDM

  • Overview
  • Benefits
  • Data Examples
  • Specifications

The PaveScan® RDM is an asphalt density assessment tool, which provides accurate real-time measurements to ensure pavement life and quality. The PaveScan RDM system is ideal for uncovering inconsistencies that occur during the paving process, including poor uniformity and significant variations in density. By avoiding these problems, PaveScan RDM helps avoid such premature failures as road raveling, cracking, and deterioration along joints.

PaveScan automatically measures the dielectric value to identify anomalies in real-time. In addition, the dielectric values can be used to as a means to correlate percent voids and density in new pavement. The innovative technology enables users to obtain critical density data for QA/QC of new pavements.

Typical Uses PaveScan include:

  • Nondestructive testing means for pavement evaluation
  • Quality assurance/ quality control of new pavements
  • Real-time dielectric measurements that correlate to density

More information:
PaveScan RDM Brochure

Determine Pavement Non-Conformity

  • PaveScan offers real-time data for on-site results by correlating the dielectric measurements
    with the percent voids of the new pavement

Innovative Technology

  • Receive critical data for QA/QC of new pavements
  • No site hazards or need to close off work areas as with nuclear gauges/radioactive alternatives

Flexible, Modular Design

  • Easy and efficient operation and data collection
  • Available as a small, portable single sensor cart-based system or a three sensor configuration
    via extended cart

The PaveScan user interface is graphics based and easy to use.  The specialized UI includes intuitive menus, informative system status bar and an innovative real-time data output that allows users to make decisions in real-time.

  • The color map (top) indicates anomalies in the dielectric measurement, allowing technicians to clearly identify areas of interest.
  • The line chart (bottom) illustrates a three-sensor system, each line represents the dielectric output of the sensor.

PaveScan data collected with one sensor system.


PaveScan data collected with three sensor system.

System Components

  • PaveScan Sensor, 1 or 3
  • Panasonic FZ-G1 Toughpad with extended life battery and AC power supply
  • 4-wheel cart with specialized mounting brackets for the G1 Tablet, Sensors, and Concentrator Box. Includes survey wheel encoder
  • Concentrator Box with rugged Ethernet cable for G1 Toughpad
  • Calibration plate
  • GSSI dual bay battery charger
  • 2 Li-ion Batteries
  • 2.1m digital antenna control cable, 1 or 3
  • Garmin Glo GPS with cart mounting hardware
  • PaveScan RDM Manual

System Specifications

  • Tablet Computer: Panasonic FZ-G1 Toughpad
  • Data Storage Internal Memory: 128 GB SSD
  • Operating Mode: Survey wheel distance based data collection
  • Data Collection Speed: up to 3 mph
    (4.8 km/h)
  • Display Modes (Collect and Playback):
    Line Graph, Data Contour Map
  • Operating Temperature: -28°C to 60°C
    (-18°F to 140°F)
  • Environmental: IP64
GSSI PaveScan system
 with three sensors
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