Title:
Creep Testing of Epoxy-Bonded Reinforcing Bar Couplers
Author(s):
Griffin Brungraber
Publication:
Materials Journal
Volume:
109
Issue:
5
Appears on pages(s):
499-502
Keywords:
adhesive; anchorage; coupler; creep; epoxy; reinforcing bar; splice.
DOI:
10.14359/51684079
Date:
9/1/2012
Abstract:
A 40-day creep test was performed on epoxy-bonded reinforcing bar coupler specimens to assess their resistance to sustained tensile load. The reinforcing bar couplers were assembled using two different epoxy products. One was the product specified by the reinforcing bar coupler manufacturer; the other was a similar product that had already shown susceptibility to long-term failure in its intended application. The difference in the creep performance of the epoxy-bonded reinforcing bar couplers assembled with different epoxy products was significant—the manufacturer-specified epoxy product produced acceptable creep performance and the other epoxy product was shown to creep extensively.