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Journal of Failure Analysis and Prevention

, Volume 13, Issue 4, pp 420–422 | Cite as

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Aerospace Technology Used to Repair Bridges

The Kentucky Transportation Center’s (KTC) research team, in cooperation with the Kentucky Transportation Cabinet and the Federal Highway Administration, recently determined that a product originally intended for aerospace technologies could be used to successfully repair damaged concrete bridges. Developed by A&P Technology, QISO Braided Triaxial Fabric is a single-layer quasi-isotropic carbon fabric that drastically improves damage tolerance and energy absorption and has been applied to jet engine fan cases, aircraft control surfaces, and radio dishes.

Issam Harik, Manager of the KTC Structures Program at the University of Kentucky, decided to use QISO to restore the capacity of a bridge pier in Louisville, Ky. The steel reinforcement of the pier was severely rusted in the vertical and transverse directions. The concrete cover also had multiple pieces that had deteriorated and fallen off, which exposed the pier core. “A single layer of QISO...

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