Non-Destructive Testing of Asphalt Density: PaveScan RDM 2.0

PaveScan RDM 2.0 is a second-generation asphalt density assessment instrument from Geophysical Survey Systems Inc. (GSSI) that is ideal for revealing abnormalities that occur during the paving process, such as low consistency and significant density variances. By recognizing problems, PaveScan RDM 2.0 helps prevent early failures including road raveling, cracking and deterioration along joints.

As of April 2019, the American Association of State and Highway Transportation Officials (AASHTO) approved this pavement density measurement technique, PP 98-19.

Non-Destructive Testing of Asphalt Density: PaveScan RDM 2.0

Image Credit: Geophysical Survey Systems, Inc.


Image Credit: Geophysical Survey Systems, Inc.

Applications

  • Non-destructive testing of asphalt compaction
  • Quality assurance/quality control of new pavements
  • Evaluating pavement non-conformity

Modern Technology to Determine New Pavement Quality

PaveScan RDM 2.0 uses new pavement dielectric tests to determine pavement condition and uniformity. This is said to be the first of its kind in the world.

Non-Destructive Testing of Asphalt Density: PaveScan RDM 2.0

Image Credit: Geophysical Survey Systems, Inc.

Innovative Technology

The PaveScan RDM 2.0 is a piece of low-cost, non-destructive evaluation equipment for detecting asphalt dielectric at the time of application. This technique is ideal for exposing irregularities that occur throughout the paving process, such as low homogeneity and significant density variances.

Non-Destructive Testing of Asphalt Density: PaveScan RDM 2.0

Image Credit: Geophysical Survey Systems, Inc.

Groundbreaking Solutions

The PaveScan RDM 2.0 is the industry’s most advanced asphalt test technique for identifying non-conformity in new pavement. It might be used with either the percent voids or the dielectric values survey approaches. As with nuclear gauges or radioactive equivalents, there are no site dangers or the requirement to seal off work areas.

Non-Destructive Testing of Asphalt Density: PaveScan RDM 2.0

Image Credit: Geophysical Survey Systems, Inc.

Data Visualization

The PaveScan RDM 2.0 is easy to use for everyone, from technicians to engineers. This technology is ideal for government transportation agencies and paving contractors alike, thanks to permanent real-time onscreen data output, GPS integration and export possibilities.

Non-Destructive Testing of Asphalt Density: PaveScan RDM 2.0

Image Credit: Geophysical Survey Systems, Inc.

Data Examples

Single Sensor

The color map highlights irregularities in the direct measurement, making it easy for professionals to spot areas of concern.

Non-Destructive Testing of Asphalt Density: PaveScan RDM 2.0

Image Credit: Geophysical Survey Systems, Inc.

Three Sensors

The line chart depicts a three-sensor system, with each line adding up to the sensor’s dielectric output.

Non-Destructive Testing of Asphalt Density: PaveScan RDM 2.0

Image Credit: Geophysical Survey Systems, Inc.

Google Earth Image

The data depicts a Google Earth image that was instantaneously exported as a .kml file using PaveScan RDM. The density levels of newly constructed compacted pavement are seen in this photograph. Low-density regions are blue, while bridges are blue in the center.

Non-Destructive Testing of Asphalt Density: PaveScan RDM 2.0

Image Credit: Geophysical Survey Systems, Inc.

Specifications

Source: Geophysical Survey Systems, Inc.

Tablet computer
Display 10.1" WUXGA 1920 x 1200 with LED backlighting
Processor Intel® i5-7300U
Available ports Ethernet, USB, HDMI
Battery Li-Ion Battery Pack (10.8 V), 4 hours
Operating temperature -28 °C to 60 °C (-18 °F to 140 °F)
Environmental rating IP65
Drop spec MIL-STD-810G
System specifications
Data format .csv
Maximum output resolution .4 inch (1 cm)
Operating mode Survey wheel distance-based data collection
Power source 2 x 10.8 V 8.2 AH batteries
Diagnostic Battery indicator status, hard disk capacity
Measurement specification
Repeatability (Dielectric) +/- 0.08 (value obtained from HDPE validation blocks)
Accuracy (Dielectric) +/- 0.08 (value obtained from HDPE validation blocks)
Minimum/Maximum dielectric 2 to 16
Mechanical
Dimensions One sensor cart system – 36.9 kg (81.4 lbs), Three sensor cart system – 42.9 kg (94.6 lbs)
Environmental rating IP65
Operating temperature -28 °C to 60 °C (-18 °F to 140 °F)
Storage temperature -55 °C to 85 °C (-67 °F to 185 °F)

 

Includes:

  • 2.1 m digital control cable(s)
  • User manual
  • Panasonic Toughpad G1
  • 2 GHz sensor (1 or 3)
  • Lithium-ion battery (2)
  • Four-wheel cart
  • Concentrator box
  • Two-year warranty
  • Dual-bay battery charger

Accessories

The PaveScan upgrade kit allows customers with a single sensor to upgrade to a three-sensor system for increased pavement coverage. The accessories include two wires, two sensors and arm extensions.

Non-Destructive Testing of Asphalt Density: PaveScan RDM 2.0

Image Credit: Geophysical Survey Systems, Inc.

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