Geophysical Survey Systems, Inc.
BY AsphaltPro Staff
- Paving and/or compaction equipment/automation
- Lab/Testing/QCQA equipment and/or its software
Most recently, GSSI introduced the PaveScan RDM 2.0 and PaveScan MDM systems, building on our 30-year legacy of developing ground penetrating radar products for the transportation industry.
PaveScan RDM is an asphalt density assessment tool that provides accurate real-time measurements to ensure pavement life and quality. PaveScan RDM is ideal for uncovering inconsistencies that occur during the paving process, including poor uniformity and significant variations in density. By detecting these problems early, PaveScan RDM helps avoid such premature failures such as:
- road raveling,
- cracking, and
- deterioration along joints.
With the PaveScan MDM, paving contractors can now be alerted immediately to changes in the mix since the system is sensitive to subtle changes in aggregate, mix and moisture. With one five-minute lab test, users can accurately reveal problems before any need for silo dumps or other costly remediation.
Quality in the Industry
PaveScan MDM turns PaveScan RDM into a powerful quality control tool for asphalt density assessment.
PaveScan MDM creates a correlation between the dielectric value of the mix at different percent voids. This correlation is used by PaveScan RDM to show accurate density variability within the asphalt mat. This degree of process control means bridge decks and longitudinal joints can be rolled to specification in real-time. If compaction problems occur from delays or paving train stoppages, QC managers can now fix pavement defects before it’s too late, saving time and money in the field.
Using PaveScan MDM and RDM gives paving contractors a comprehensive and accurate view into pavement quality without the expense, risk, and errors from spot coring.
More importantly, reducing the need to core exposes fewer workers to the dangers of work zones.