While many concrete producers focus on contractors in markets where volume is king, an active community of contractors remains where the projects call for sack-like quantities. And in many cases, the demand for quality and performance is even higher. The combination of packaging technology and product performance is evident in Dag Seagren’s venture into the packaged concrete market. The president and CEO of Einstone Inc., a three-year-old Miami producer of packaged concrete, hopes large regional producers across the country will pick up his franchise idea.