CE 205: Properties of Structural Materials 8. Concrete
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Questions and Answers

What are the main components of concrete?

  • Cement, water, steel, aggregates
  • Cement, water, sand, aggregates (correct)
  • Lime, iron, silica, alumina
  • Steel, water, sand, aggregates

    • What percentage of the concrete volume do aggregates generally occupy?

  • 40% to 55%
  • 80% to 90%
  • 25% to 35%
  • 60% to 75% (correct)

    • Which compound is not a main raw material in the production of Portland cement?

  • Alumina (Al2O3)
  • Lime (CaO)
  • Silica (SiO2)
  • Iron (Fe2O3) (correct)

    • What are the stages in the kiln system for burning raw materials in Portland cement production?

    <p>Preheating, burning, cooling, clinker storage</p> Signup and view all the answers

    What is the primary component in cement paste?

    <p>Cement + water</p> Signup and view all the answers

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