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GSSI introduces asphalt density assessment tool

October 21, 2021  By Rock to Road Staff

GSSI, a global manufacturer of ground-penetrating radar (GPR) equipment, has introduced PaveScan RDM 2.0 – an asphalt density assessment tool that provides accurate real-time measurements – to the Canadian and U.S. markets.

PaveScan 2.0 incorporates a new sensor design built specifically for the extremes of the asphalt paving environment, foldable deployment arms with high visibility for work site safety and has a warm-up time of under one minute when ambient temperature is over 70 degrees F.

PaveScan RDM is ideal for uncovering problems 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 ravelling, cracking and deterioration along joints.


This system 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 technology enables users to obtain critical density data for QA/QC of new pavements. PaveScan does not result in any site hazards or require closing off work areas.

Integrating with GPS systems, the technology features a flexible, modular design for data collection. It is offered as a single sensor or a three-sensor cart based configuration.

As of April 2019, this pavement density measurement technology is an accepted American Association of State and Highway Transportation Officials (AASHTO) specification, PP 98-19.

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