Source (All Images) | Regen Fiber Regen Fiber (Fairfax, Iowa, U.S.) announces that it received an award at the Iowa Better Concrete Conference in early November by the Iowa Ready Mixed Concrete Association (IRMCA, Ankeny, Iowa, U.S.) and American Concrete Institute (ACI) Iowa Chapter for sustainable practices in a project that explored the use of Regen Fiber recycled fibers in concrete. The Excellence in Concrete Awards recognize outstanding projects from throughout the state.