Text from Maryam1987 - English

  • How cement is used to produce concrete for building purposes.

  • The diagrams below show the stages and equipment used in the cement- making process, and how cement is used to produce concrete for building purposes.
    • In these, under diagrams, there are two different methods.
    • One of them about producing cement and other diagram shows how concrete is produced by cement.
    • There some steps to create cement of two simple materials such as limestone and clay.
    • Firstly, they are crushed together by crusher.
    • After that, they become soft powder.
    • This production goes into a mixer.
    • Secondly, when materials completely mix together they pass during a long pipe to reach the rotating heater.
    • In this place, they take some heat to lose their hard form.
    • Finally, they are purring on the surface of the grinder to become smooth cement.
    • Then, they are packing in bags.
    • Referring to the concrete production, the process begins with combination of 15% cement, 10% water, and 25% sand.
    • These four elements besprent in the huge concrete mixer which has capsule form.
    • They are mixed together in this rotate instrument.
    • In this process do not use heat and it is shorter than the first method.
    • To sum up, various ingredients should be used for creating cement to compare production concrete.
    • Cement had so soft structure however concrete is very hard.