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Manufacturing of Portland Cement - Materials and Process
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Manufacturing of Portland Cement - Materials and Process

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Questions and Answers

What are the basic components of Portland cement mentioned in the text?

  • C3S, C2S, C3SA, C4AF (correct)
  • C4S, C2S, C3SA, C4AF
  • C3S, C2S, C3A, C4F
  • C3S, C2A, C3SA, C4AF
  • What is the material exiting from a rotary kiln in a cement plant known as in the text?

  • Gypsum
  • Silicates
  • Aluminates
  • Clinkers (correct)
  • What are the primary components of clinkers mentioned in the text?

  • Hydraulic calcium sulfates, calcium aluminates and calcium ferrites
  • Hydraulic calcium silicates, calcium aluminates and calcium aluminoferrites (correct)
  • Hydraulic calcium silicates, calcium sulfates and calcium aluminoferrites
  • Hydraulic calcium carbonates, calcium aluminates and calcium sulfates
  • What is the purpose of adding gypsum during the manufacturing process of Portland cement?

    <p>To control the reaction of C3A within the cement</p> Signup and view all the answers

    What is one key difference between the wet and dry processes for manufacturing cement clinker?

    <p>Preparation of raw materials</p> Signup and view all the answers

    Why is frequent chemical analysis of materials important in cement manufacturing?

    <p>To ensure uniform quality</p> Signup and view all the answers

    Which type of grind will tend to set faster according to the text?

    <p>Finer grinds</p> Signup and view all the answers

    What are the essential compounds required in the raw materials for manufacturing cement?

    <p>Calcium, silica, alumina &amp; iron compounds</p> Signup and view all the answers

    Why is grinding with gypsum important during the manufacturing process of cement?

    <p>To control the reaction of C3A within the cement</p> Signup and view all the answers

    What are the two processes for manufacturing cement clinker mentioned in the text?

    <p>Wet and dry processes</p> Signup and view all the answers

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