Concrete is most vital material in modern construction. It has versatile properties like easy mouldability, high compressive strength and long lasting durability. These properties of concrete have made it most popular construction material for all types of civil engineering works. The latest developments in concrete technology have made it possible to use it in intricate and architecturally complex structures, requiring high degree of performance and aesthetic appearance. In addition to normal concrete, other varieties in use are, high strength and high performance concrete, self compacting, light weight, high density, fibre reinforced, polymer, coloured concrete etc. The ingredients of good and bad concrete are the same. The difference lies in the technology used for production, transportation and placement. The making of concrete is an art as well as a science.