In plain English, it tells contractors and inspectors exactly how to handle, place, and concrete around —often called "glass FRP" or "GFRP rebar."
If you are working with FRP reinforcement, this document (or its newer edition) isn't optional. It’s the rulebook for getting the job done right. aci 440.5-08 pdf
But what exactly is this document, and why do engineers still reference it today? Let’s break it down. ACI 440.5-08 is a specification published by the American Concrete Institute (ACI) titled: "Specification for Construction with Fiber-Reinforced Polymer Reinforcing Bars." In plain English, it tells contractors and inspectors