The two diagrams illustrate the proccess of cement production and the subsequent steps involved in making concrete for construction purposes.
Overall the manufacturing of cement requires several stages involving both mechanical and thermal proccessing while the production of concrete is significantly simpler and consists merely of mixing specific proportions of materials
In the first diagram cement production begins with the crushing of limestone and clay. These raw materials are fed into a crusher which reduces them to power. The powder is then passed through a mixer after which it enters a rotating heater. Here the mixture is subjected to intense heat. The heated material is then transferred to a grinder where it is ground into fine cement. Finally the cement is packed into bags and made ready for use.
The second diagram depicts how cement is used to make concrete. The proccess is relatively straightforward and involves combining four material in a concrete mixer 15% cement, 10% water, 25% sand, and 50% gravel (small stones). These componets are mixed together untill a uniform concrete is formed which can then be used for building construction.
In summary which cement production is a complex industrial proccess involving multiple machines and heating making concrete requires only the mixing of fixed quantities of ingridients.