TECHNICAL SERVICES
Penetradar Technical Services Group (TSG) offers a comprehensive array of non-destructive testing techniques that provide an accurate and quantitative assessment of the internal physical condition of bridge decks, pavements and concrete structures. In addition, these testing methods can be used for a variety of applications such as detection of buried objects under parking lots and grassy areas. Utilizing state-of-the-art and advanced technologies, we can provide the information that you require to make sound engineering decisions.
NON-DESTRUCTIVE TESTING METHODS
GROUND PENETRATING RADAR
The Integrated Radar Inspection System (IRIS) Ground Penetrating Radar System can accurately and non-destructively “see” through solid pavement materials, such as asphalt and concrete while detecting bridge deck delaminations (laminar fracturing) voids and moisture beneath pavements and measures the thickness of asphalt pavement layers.
For site inspections Penetradar TSG uses portable IRIS GPR equipment with air-coupled or ground coupled antennas for a depth range up to approximately 10 feet. In addition to concrete & pavement inspection we conduct geotechnical & environmental surveys to locate buried pipes, utility lines and detect buried drums.
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INFRARED THERMOGRAPHY
Infrared Thermography (IRT) is a non-destructive technique that detects delaminations in reinforced concrete bridge decks, pavements and structures by measuring the thermal conduction/radiation characteristics of the concrete. Delaminated concrete regions absorb and radiate thermal energy at different rates than surrounding concrete and this differential is measured by the Infrared receiver. We utilized a computer based IRT processing system for acquisition, annotation, image editing and plan-view color output mapping.
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VIDEO IMAGING
Penetradar can provide a high resolution (up to 4K) video record of highways and bridge deck surface conditions. Images are referenced utilizing DMI and GPS coordinates and results are presented in a plan-view format.
Penetradar's specialized software converts the high resolution video into “plan-view” images by taking individual portions of each video image to recreate a top-view image of the bridge deck. In this way, deck dimensions, the locations and size of detections are accurately preserved and in addition, this method reduces time on-site and minimizes the requirement for lane closures.
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APPLICATIONS
The non-destructive testing methods above are used in the following applications. Click on the type of inspections below to view the specific applications for each.
BRIDGE INSPECTION
Depth of Reinforcement
Freeze-Thaw Damage
Debonded Overlay
Delamination
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PAVEMENT INSPECTION
Detection of Subsurface Moisture
Pavement Layer Thickness
Concrete Deterioration
Pavement Structure
Void Detection
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GEOTECHNICAL/ENVIRONMENTAL SURVEYS
Underground Storage Tanks
Depth of Water Table
Depth of Bedrock
Hazardous Spills
Buried Objects
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TUNNEL & WALL INSPECTION
PARKING STRUCTURE & FLOOR
CONCRETE DETERIORATION & DELAMINATION
LOCATION OF ELECTRICAL CONDUIT
OVERLAY THICKNESS
REBAR MAPPING
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UTILITY LINE & PIPE LOCATION
CONCRETE DETERIORATION
LAYER SEPARATION
THICKNESS
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Since 1985 Penetradar Technical Services Group has specialized in non-destructive testing of pavement, bridge decks and concrete structures. To date, we have conducted inspections in over 30 states on hundreds of projects com-prising millions of square feet of bridge decks and thousands of lane-miles of pavement. Call us for assistance on your next project.
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