This paper presents the results of an experimental program performed to determine the bond performance of epoxy-coated strands subjected to elevated temperatures. Two test series were conducted to establish the maximum temperature at which epoxy-coated strands retain adequate bond capacity. In the first test series, the specimens were water cured and the strands detensioned at ambient temperature. In the second test series, the specimens were steam cured and the strands detensioned at 15r.J> F (66°C) for two specimens and 155° F (68°C) for a third specimen. For both test series, the temperature after detensioning was increased to about 200°F (93° C). The results of this study indicate that detensioning of epoxy-coated strands should not occur at internal temperatures over 16r.J> F (71 ° C}.
