This paper reports the results of an experimental investigation carried out to compare the effect of elevated temperatures [up to 200°F (93°C)] on the pull-out strength of epoxy-coated and uncoated strands embedded in concrete. The test results showed that for the epoxy-coated strands, there is a reduction in the bond strength which initiates at about 1 00°F (38 °C) with about a 33 percent reduction at 160°F (77 °C) and over 85 percent reduction at 200°F (93 °). It is recommended that detensioning of epoxy-coated strand should not be done at internal concrete temperatures greater than 7 60°F (77 °C).
