The diagram illustrates the equipment and steps used in the production of cement and the way cement is used to make concrete for building purposes.
Overall, two components pass through four stages of processing before the cement produced is packed into bags. Cement is then mixed with three other materials in a concrete mixture to manufacture concrete. While the process of making cement uses multiple machines, only one tool is used to produce concrete.
In the first stage of the first diagram, limestone and clay are crushed into powder by the crusher which is then mixed in the mixer. The powder then passes through the rotating heater where constant heat is supplied from one end of the tube while the tool rotates. The end product is then ground at the last stage by a grinder to create cement. The cement manufactured is afterwards put into bags ready to be used.
In the latter illustration, concrete is mainly composed of gravel, which is small stones, and this takes up 50% of the ingredients used in the creation of concrete. The rest of the materials are 15% cement, 25% sand and 10% water. All of these are poured into a concrete mixer, and the mixer rotates continuously to combine all the ingredients, and ultimately produce concrete.