Ground stabilization extends beyond soil to include rock and gravel, crucial for various construction and infrastructure projects. Polyurethane foam, with its expansive and adhesive properties, is an extremely effective solution in these challenging environments.

Case Study: Gravel Wall Stabilization

A collapsing old brick retaining wall necessitated urgent stabilization measures. The challenge was to remove a portion of the wall without causing the loose gravel foundation under a temporary concrete retaining wall to run out. The contractor chose AP Fill 720, a polyurethane resin, for its ability to permeate and lock the gravel in place, achieving high compressive strength. Approximately 50 gallons of AP Fill 720 were used, with injection probes placed strategically to ensure thorough coverage. The process was efficient, taking just one day with a small crew, and was a complete success, allowing for the safe removal of the brick and completion of the project with minimal costs.

Case Study: Railroad Ballast Rock Stabilization

AP Lift 475, a two-component polyurethane foam, was utilized for railroad ballast rock repair and stabilization. This resin was applied to loose bulk ballast stones on railway tracks, increasing their rigidity and stiffness. It served as a weather-resistant solution, reducing vibrations and providing a buffer zone. The application of AP Lift 475 on ballast stones created a polyurethane-stabilized ballast with superior mechanical properties compared to traditional methods.

Beyond Soil: Rock and Gravel Stabilization

These cases demonstrate the versatility and effectiveness of polyurethane foam in stabilizing not just soil, but also rock and gravel, underscoring its utility in a wide range of geotechnical challenges. For more information and expert consultation on ground stabilization solutions, Alchatek offers its expertise and innovative approaches tailored to various needs.

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