Infrastructure Rehabilitation Services

Polyurethane grout is a hydro-insensitive plural component grout that expands as a consequence of a chemical reaction. The two-part grout sets and alters the physical properties of a geologic mass, traveling through a soil profile initially by permeation and then by densification due to an expansive exothermic reaction.  The polyurethane grout binds as a closed-cell formation and has expansive qualities of 15 to 22 times the initial volume.  The advantage of polyurethane is that it is not as sensitive as permeation grout in regards to soil conditions.  It is not dependent on moisture and is still effective in highly saturated environments.  Additionally, polyurethane’s cure time is fast, setting up to 90% density in 15 minutes whereas permeation grout requires approximately 24 hours in optimal situations.

Our polyurethane injection process for infrastructure rehabilitation utilizes a fully self-contained injection rig with a 60kW diesel generator set, a 5hp 23 CFM air compressor, and a refrigerated dryer/regulation system.  The systems use double diaphragm feed pumps and an impingement-style gun. The ½” diameter steel tubing is driven down to discrete injection elevations.  The multiple injection elevations result in stacked spheres of polymer with the tubing being sacrificial upon completion of the injection.  The tubing can be angled for void fill or centerline foundation repairs.  Due to the highly expansive qualities of the two-part chemical grout, monitoring for movement is required using a laser level.

As your culvert rehabilitation depends on the type of deterioration and root cause of the problem, we will perform a site-specific analysis of the area and provide you with the best possible solution. With reliable soil compaction and densification solutions, we can strengthen weak or loose soil strata, level concrete, and restore load-bearing capacity without damaging assets or the environment. Our infrastructure rehabilitation services are ideal for public works managers, engineers, municipalities, and state agencies. We minimize downtime, maximize budgets, and extend the infrastructure lifecycle with innovative no-dig solutions. Give us a call to learn more about our culvert rehabilitation services.

Keep your community moving forward with cost-efficient yet long-lasting trenchless infrastructure repair and culvert foundation repair services from EagleLIFT. We are a solutions-oriented ground-engineering firm with more than two decades of experience revamping and restoring pavement and concrete structures using fast-acting, non-disruptive and environmentally inert polyurethane injection techniques that work to: