Although ultra high-performance concrete is vastly stronger and more water-resistant than regular concrete, its high cost has limited its use in repairing and restoring bridges. However, an FIU team has developed a spray-on type of UHPC with the potential to solve that problem, says Atorod Azizinamini. “This could become a major tool in repairing or upgrading structurally deficient bridges quickly and efficiently.”
The system deposits thin layers of UHPC onto surfaces through a nozzle. Layers are then added like coats of paint. Their light weight doesn’t significantly alter the mass of the structure. The FIU mix comes at a fraction of the cost of standard UHPC and, since only a thin layer of it is needed, the overall costs are more manageable.
View Related Expert Profiles: Go to Source
