New Innovation In Infrared Thermography

For Detecting Delaminations in Bridge Decks

 

Infrared Thermography (IRT) is a useful and cost-effective method for detection of delaminations in reinforced concrete bridge decks. This technology is based on detection of thermal differences arising from uneven heating of the concrete bridge deck. Delaminations may appear as hot or cool spots on the deck. When used effectively, IRT can provide more accurate information on the condition of bridge decks; eliminating cost of overruns during deck rehabilitation.

Shown below are the results of an actual infrared thermographic survey, depicting a plan-view of a bridge deck.

New Innovation In Infrared Thermography

For Detecting Delaminations in Bridge Decks

Infrared Thermographic Plan-View Map

Penetradar has developed a new technique utilizing advanced image processing for generating plan-view maps which accurately show defects and other features of the bridge deck. Delaminations are seen in red, patches as blue and lane lines and abutments are clearly observed.

Bridge Deck Delamination Detection Map

The end result is a detection map derived from the infrared thermographic plan-view, which is illustrated above, showing the location and precise size of the defects. The method retains the true shape of the delaminated areas and eliminates subjectivity associated with detection of defects, resulting in accurate repair quantities for deteriorated concrete.

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