Polyurethane-bonded aggregate – a resilient solution to protect against scour and erosion in storm water applications

Co-Presented by, Staci Wegener & Chris Lacarte

Erosion-resistant and environmentally sound, polyurethane-bonded aggregate (PBA) has been successfully installed in challenging engineering applications across the globe. PBA open-pored structure dissipates water energy and avoids typical problems that rigid, impermeable revetments such as concrete or fully grouted riprap experience. The monolithic, porous structure promotes natural re-vegetation and offers significant design flexibility for integration into natural landscapes. While PBA has mainly been applied in coastal applications, its composition and properties provide opportunities for use in storm drainage applications. For example, use of PBA is a resilient solution for scour and erosion protection at culvert inlets and outlets, street and highway drainage structures, levees, and rain gardens.

Staci Wegener

Co-Presented by Staci Wegener & Chris Lacarte

Staci Wegener received a B.S. in Chemistry from Saginaw Valley State University and a Ph.D. from Northwestern University. She joined BASF in 2012 and has held various positions in R&D, business development, and marketing. Staci currently the Infrastructure Market Segment Manager in the Performance Materials unit at BASF.

Chris Lacarte received a B.S. in Chemistry from the University of Waterloo. Throughout his career at BASF he has held various positions in technical services, product development, operations / plant management, and technical management. Chris is an expert in polyurethane materials and is currently the Infrastructure Technical Manager in the Performance Materials unit at BASF.