Introduction to Concrete Construction
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Questions and Answers

What is concrete composed of?

  • Coarse aggregate, fine aggregate, cement, water, air voids, and admixtures (correct)
  • Steel, sand, water, and cement
  • Reinforcing bars, gravel, and water
  • Gravel, cement, and water

    • In which construction elements is plain concrete suitable?

  • Nonstructural elements with minimal tensile forces (correct)
  • Structural beams with high tensile forces
  • Pavements with no compressive forces
  • Foundations with significant tensile stresses

    • What is the primary purpose of reinforcing bars in reinforced concrete?

  • Increasing compressive strength
  • Absorbing tensile stresses (correct)
  • Providing resistance to shear forces
  • Reducing the water-cement ratio

    • What is the main drawback of plain concrete in terms of tensile stresses?

    <p>Abrupt and brittle failure</p> Signup and view all the answers

    What is the function of the paste formed by mixing cement with water in concrete?

    <p>Binding the aggregates into a solid mass</p> Signup and view all the answers

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