Specifications include, but are not limited to: Seal joints by inserting polyurethane-impregnated jute rope into the joint which will expand to provide a type of in situ rubber gasket, as well as a containment dam. The polyurethane will be a single-component, hydrophilic, moisture- activated resin, compounded for this specific purpose. Insert ports around each joint at a predetermined spacing and backgrout utilizing moisture-activated hydrophobic polyurethane. This material will permeate and expand to fill voids, seal the joint and restore the needed structural bedding and backfill around the joint. Materials Hydrophilic polyurethane injection resins Hydrophilic polyurethane injection resin for use in construction of containment dams and joint repair shall be a Hydrophilic Polyurethane Resin ; Appearance: Amber liquid Viscosity: 250-350 cps Wt. Per Gal.: 8.65 lbs Solids Cont: 88% Induction Time: 3 to 4 minutes Cure Time: 5 to 6 minutes Cured foam tests Bond Strength: 60 psi ASTM 882 Tensile Strength: 450 psi ASMT D-3574 Elongation: 350% ASTM D-3574