Steel Fiber Ready Mix Concrete Steel fiber concrete (SFRC) = concrete + short steel fibers. Usually smooth, straight wires can be hooked/crimped. Lightweight Ready Mix Concrete Lightweight concrete has lower density via aggregates like expanded shale/clay/slag, ranging 800-2000 kg/m³, differing from traditional dense concrete. Fiber Reinforced Ready Mix Concrete Fiber reinforced concrete (FRC) is a composite with short fibers (steel, glass, synthetics) randomly dispersed in concrete.
