(Aggregate Research 5-19-2010) There have been a number of advances in new concrete technology in the past ten years. There have been advancements made in almost all areas of concrete production including materials, recycling, mixture proportioning, durability, and environmental quality. However, many of these innovations have not been adopted by the concrete industry or concrete users / buyers. There is always some resistance to change and it is usually based on cost considerations and lack of familiarity with the new technology.