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Infrared Detection for the Asphalt Industry
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Why does asphalt pavement fail prematurely and develop bone-jarring potholes, raveling and cracking? Since the mid-1980s, many highways engineered for service lives of 15 years have been failing much sooner. The culprit has been traced by infrared thermography to be excessive temperature variations in the hot mix asphalt (HMA) pavement surface, or mat, of a road during laydown.
In a unique, ongoing collaborative effort that began a decade ago, the State of Washington Department of Transportation (WSDOT) and the University of Washington (UW) researched the cause of premature
road failure using a FLIR ThermaCAMŽ infrared camera. Now, a new
generation of infrared cameras makes asphalt thermal imaging as easy
as taking a photograph. Washington and a growing number of other
states from Alaska to Texas now use FLIR infrared cameras for road
construction quality analysis. Infrared thermal imaging is emerging
as a highly affordable and convenient inspection method that
provides a whole new level of quality control during mat laydown,
greatly increasing the performance and service life of our nation's
highways.
FLIR ThermaCAM infrared cameras are lightweight and rugged for use
in the field. They instantly capture and record high-resolution
thermographic images on-board for subsequent downloading to a PC.
They can also output full-motion infrared video records in real-time
to a video recorder. Interchangeable lenses can accommodate all of
the situations you will encounter.
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