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Non-Destructive Bridge
Inspection Technology by Infrared Thermography
November, 2018
Masato Matsumoto, P.E.
President and CEO
NEXCO-West USA, Inc.
Expressway network in Japan
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✓ Used be a government agency (Japan Highway)
✓ Privatized in 2005 and became NEXCO-West
✓ Established an office in Washington D.C. in 2011
Pilot project in Florida Keys (August, 2009)
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Our Team (@Vienna, VA)
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Motivation
Measuring Crack Spacing
Chain Drag during Lane Closure
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Routine inspection every 2 years (mainly by Visual and hands-on inspection)
Current practice for bridge deck inspection
Chain Drag and Hammer Sounding technique are widely used
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Deck Top Scanning System (DTSS)
IR camera
Line scan camera
Line scan camera
Line scan camera
IR camera
Raw and processed IR image
Visual image
13″ (4 m)
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Infrared Thermography Technology
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Example in Virginia
Software Output
Thermal Image
6 in. interval
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Deficiency Map for Bridge Decks
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Deficiency Map for HAM-75-0173, South Bound
Liberty St.
North Bound
South Bound
South
DelaminationUnsound patch
IR Software Output
Deficiency Map
IR Thrermography
Applications in U.S., Brazil and France
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Introducing American Product to Japan
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Road Zipper System in the United States
Golden Gate Bridge
(San Francisco)
Ben Franklin Bridge
(Philadelphia)
I-66 Theodore Roosevelt
Memorial Bridge
(Washington D.C.)
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Introduction of Road Zipper System to Japan
I’m afraid of using a product that has
never been used in Japan.
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We are serving as a ‘Bridge’ between U.S. and Japan to exchange
latest technologies for their mutual benefit
Bridge between U.S. and Japan
Japan
United States
Exchange
- Knowledge
- Experience
- Technologies
Everybody wants to be the second.
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There are those who look at things the way they are, and ask why... I dream of things that never were, and ask why not?
Robert Kennedy
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Questions?Masato Matsumoto, P.E.
President and CEO
NEXCO-West USA, Inc.
http://www.w-nexco-usa.com/
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