New standards/application for "twisted steel fiber" a.k.a. "micro rebar"

New standards/application for "twisted steel fiber" a.k.a. "micro rebar"

There is a new ASTM standard coming out for this product and it can be spin-galvanized to A153, although the proposal is to allow any coating including electroplating. It's a new alternative to traditional rebar or wire mesh, utilizing 1-inch twisted steel components that are mixed directly in with the concrete mix. Here are some suppliers/info (main one pushing is Luke Pinkerton of Helix Steel):

• https://www.helixsteel.com/products-services/helix-micro-rebar/
• https://www.helixsteel.com/pdfs/Helix-5-25-Technical-Data-Sheet.pdf
• https://www.steelxrebar.com/
• Presentation to ACI: https://www.concrete.org/portals/0/files/pdf/webinars/ws_S24_LukePinkerton.pdf