Steel sheet piles and seawalls are commonly used in waterfront projects. The daily tidal changes introduce dry/wet cycles that lead to rapid corrosion of these structures. Most of the damage in sheet piles and seawalls occurs over the splash zone, which is defined by the low and high tide water elevation.
The Sheet Pile Repair [SPiRe®] system is constructed with lightweight honeycomb or 3D fabric sandwiched between sheets of resin-saturated FRP fabric. These panels can be easily manufactured near the jobsite to match the shape of the steel sheet pile or concrete seawall being repaired. The lightweight panels are secured in front of the repair area using anchor bolts. The annular space between the SPiRe panels and the seawall or sheet pile is filled with grout or resin. The impervious sheets form a barrier to keep moisture and oxygen, that fuel the corrosion process, away from the structure.
STAY-IN-PLACE FORM MADE TO MATCH BEAM SIZE
DAMAGED CONCRETE BEAM
FORM IS SECURED TO BEAM AND ANNULAR SPACE IS FILLED WITH GROUT OR RESIN