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Proceedings Paper

Development of a nondestructive evaluation method for FRP bridge decks
Author(s): Jeff Brown; Terra Fox
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Paper Abstract

Open steel grids are typically used on bridges to minimize the weight of the bridge deck and wearing surface. These grids, however, require frequent maintenance and exhibit other durability concerns related to fatigue cracking and corrosion. Bridge decks constructed from composite materials, such as a Fiber-reinforced Polymer (FRP), are strong and lightweight; they also offer improved rideability, reduced noise levels, less maintenance, and are relatively easy to install compared to steel grids. This research is aimed at developing an inspection protocol for FRP bridge decks using Infrared thermography. The finite element method was used to simulate the heat transfer process and determine optimal heating and data acquisition parameters that will be used to inspect FRP bridge decks in the field. It was demonstrated that thermal imaging could successfully identify features of the FRP bridge deck to depths of 1.7 cm using a phase analysis process.

Paper Details

Date Published: 3 May 2010
PDF: 9 pages
Proc. SPIE 7661, Thermosense XXXII, 76610C (3 May 2010); doi: 10.1117/12.851796
Show Author Affiliations
Jeff Brown, Hope College (United States)
Terra Fox, Hope College (United States)

Published in SPIE Proceedings Vol. 7661:
Thermosense XXXII
Ralph B. Dinwiddie; Morteza Safai, Editor(s)

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