A new FRP specification released by the National Association of Sewer Service Companies (NASSCO) provides previously unpublished technical guidance on what sewer system owners and engineers need be looking for when using high performance composites for repair and rehabilitation.
You can review the Rehabilitation of Sewers Using Fiber Reinforced Polymers guideline from the NACCSO website here
Point Repair of Solution Mining Site in Arizona @ 392 ft deep with SuperLaminate®
Wrap the laminate with an adequate tack coat. Hold on the packer as it is descended down the hole at 392 ft deep. SuperLaminate® can take 600 psi of internal pressure. More holes are point repaired with SuperLaminate®
QuakeWrap founder and FRP pioneer awarded ASCE Life Member status
This design, for a fully-structural retrofit of a 20-foot section of a 12-inch reinforced concrete tunnel, included engineering for 100-psi of external hydrostatic pressure. The design called for layers of StifPipe® to be installed internally by wet layup method.