Polyurethane Resin (PUR) Injection for Rock Mass Stabilization for Kansas City
Federal Lands Highway (FLH) of the Federal Highway Administration (FHWA) recently investigated the
application of polyurethane resin (PUR) injection as a rapidly deployed, cost-effective ground and structure stabilization method. Application objectives included the preservation of historic, cultural and other environmentally sensitive natural and man-made features, while maintaining the original visual characteristics and aesthetic appeal.
Based on the "lessons learned" from these investigations, application guidance has been developed for the selection of polyurethane resin products and injection methods to (1) stabilize failing rock masses (e.g., rock slopes, unique rock promontories, escarpments), and (2) preserve aging and/or deteriorating man-made structures (e.g., historic retaining walls, archeological structures).