Epoxy Coated Reinforcment Study

Summary:
This report evaluates the use of Scotchlite 213 epoxy coated reinforcement in Oregon coastal environments. There is an extensive body of knowledge documenting epoxy coated reinforcement research in North America in the last 20 years. The research has produced mix results. However, recent studies conducted by Clear and others for the National Cooperative
Highway Research Program, by Kessler and others for the Florida Department of Transportation and by Weyers and others in Virginia, provide evidence of poor performance of epoxy coated reinforcement in coastal bridge structures.
In 1989, the Oregon Department of Transportation removed a concrete test beam reinforced with Scotchlite 213 epoxy coatedreinforcement after nine years of service from Yaquina Bay in Newport, Oregon. Results of the testing and evaluation showed that there was adhesion loss of the coating attributed to low blast profile of the steel and low coating thickness. There wasobserved corrosion along the longitudinal bars and hoop reinforcement that were located within the tidal zone.

Format:
Pages : 47
Size: 930 kb
Author :by Andrew Griffith, P.E. and H. Martin Laylor
for Oregon Department of Transportation Research Group

 

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