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‘Space-age technique’ used to strengthen Phoenix bridges

0 92 Technology

by The Associated Press

PHOENIX — The Arizona Department of Transportation has used what it calls “a space-age technique” to repair and strengthen concrete girders on two freeway bridges in Phoenix.
‘Space-age technique’ used to strengthen Phoenix bridges

ADOT used carbon fiber strips coated and strengthened with polymer to fix girders on an Interstate 17 bridge over 19th Avenue and a bridge that carries Jefferson Street over I-17.

Both bridges had been struck by over-height vehicles and ADOT says the work completed in May allowed it to remove the 19th Avenue bridge from a list of structurally deficient bridges.

The Jefferson Street bridge wasn't on that list.

The work used a carbon-fiber process developed by QuakeWrap Inc. of Tucson.

The contractors were FNF Construction Inc. of Tempe and FRP Construction LLC of Tucson.

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