Epoxy is used between precast bridge segments to fill voids on the faces, keep water and
contaminants from seeping into joints, prevent grout from bleeding into joints from
posttensioning ducts, and act as a lubricant between the segments during assembly. To
create a good seal at the joint faces, two experimental epoxy applications were tested: a top
strip recess at the joint formed in the concrete during precasting, and a recessed annulus
groove around the duct that provides a distinct guide for epoxy application. Eight beams …

Epoxy is normally used between precast segments to fill in voids on the faces, to keep water
from seeping into the joint, to prevent grout from bleeding into the joint from the post-
tensioning ducts, and to act as a lubricant between the segments during assembly of the
bridge. Better and more efficient means of ensuring a good seal between ducts are needed
for enhanced protection. Two new experimental epoxy applications were tested in this study:
1) with plane face, 2) with top strip, 3) with annulus, and 4) with top strip and annulus …