The Earthquake Engineering Online Archive

Bond strength of prefabricated epoxy-coated reinforcement

De Anda, Liliana; Courtier, Camille; Moehle, Jack P.

UCB/SEMM-2004/04, Dept. of Civil and Environmental Engineering, University of California, Berkeley, 2004, 25 pages (500/C23/2004/04)

Prefabricated epoxy-coated reinforcement is used increasingly in reinforced concrete construction in which high corrosion resistance is required. For this study, beam-end tests were carried out on uncoated bars, bars with green epoxy coating, and prefabricated epoxy coating. Tests showed that epoxy coating reduces bond strength, with similar reductions for green and gray coatings. In some cases, bond strength decreased with increasing coating thickness; but, for the range of thicknesses investigated, the reduction factor of current building codes was found to be conservative.

Available online: http://nisee.berkeley.edu/documents/SEMM/SEMM-2004-04.pdf (2 MB)