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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.

m.matsumoto@w-nexco-usa.com

http://www.w-nexco-usa.com/

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