PaveScan®- Rolling Density Meter

The First Continuous Asphalt Density
Measurement System


The InstroTek PaveScan Powered by GSSI Technology is the first non-nuclear rolling density system that provides real-time compaction and density data for the entire paving project.  Proper compaction is the most important factor in producing long-lasting pavements.   The PaveScan uses multiple sensors to continuously scan the entire pavement and provide a density profile of the entire paving project.  The operator can simply push the cart along the lane and gathers density data behind the asphalt rollers.  The on-board computer displays density, compaction, a line graph, and a contour map of the measurements. This information is used by contractors and pavement engineers to assess the quality of the pavement.   

The Future of Zero Coring is Within Reach

Contractors and State Agencies refer to the PaveScan as The Continuous Coring System! With PaveScan, the possibility of zero coring is within reach.  Many pavement failures including potholes start at and around the coring location.  This technology has the potential to drastically reduce if not eliminate the need for field cores, saving thousands on coring operations, reduction in traffic delays, and improving work zone safety.  

More is Better

Traditional nuclear and non-nuclear gauges only offer single-point measurements.  The PaveScan can take hundreds of measurements per minute, producing an accurate picture of the entire pavement project.  The three-sensor system can cover up to 6 feet across the lane.   The wheel encoder, together with the optional GPS, can accurately track the movement of the PaveScan on the roadway.  This information can be used with Google Earth for a comprehensive density profile of the entire paving project.  The data can be analyzed to determine areas of interest for further investigation.

The Perfect Asphalt Joint

Many pavement failures occur and start at the joints.  Therefore, achieving good joint density is key to producing a long-lasting pavement.  The PaveScan allows the operator to take density measurements along the entire joint.  A single sensor with a green laser guide ensures the sensor is positioned directly over the joint.  For the first time, contractors can measure joint compaction consistency throughout the entire project.

Benefits and Features

  • Non-nuclear technology
  • Accommodates up to 3 sensors for full pavement and joint coverage
  • Complete density map of entire pavement project; not single-point measurements
  • The most accurate and precise method of measuring asphalt joint density
  • Potentially reduction in coring sites
  • Optional GPS receiver and built-in pole adaptor
  • Graphic display of data with line graph, contour map, or histogram distribution
  • Rugged modular assembly; Deploys in minutes
  • Foldable deployment arms with high visibility for work zone safety
  • Easily charge and exchange batteries



  • Weight: 81-94 lbs. (36-42 Kg)
  • Max Dimensions: 62L x 25W x 44H Inches (157 x 63 x 111 cm)
  • Storage Capacity: 256 GB

System Includes

  • 2 GHz Sensor (1, 2 or 3)
  • Panasonic Toughpad G1
  • 4-wheel cart
  • 1 m digital control cable(s)
  • Concentrator box
  • Lithium-ion battery (2)
  • Dual-bay battery charger
  • User Manual
  • 2-year warranty