Concrete Degradation Quiz
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Questions and Answers

Which type of attack can lead to the production of calcium sulfo-aluminate (Ettringite) and subsequently cause a decrease in volume and cracking?

  • Acid attack
  • Alkali-aggregate reaction
  • Corrosion of reinforcement
  • Sulfate attack (correct)
  • In which type of exposure does sea water containing sulfate pose a moderate threat?

  • Corrosion of reinforcement
  • Sulfate exposure (correct)
  • Acid attack
  • Alkali-aggregate reaction
  • What can lead to the production of acids in damp conditions, particularly in chimneys and some agricultural conditions?

  • Corrosion of reinforcement
  • Reacting SO2 and CO2 (correct)
  • Sulfate attack
  • Alkali-aggregate reaction
  • Which process prevents the corrosion of reinforcement?

    <p>Ca(OH)2</p> Signup and view all the answers

    What is the main cause of chemical attack on concrete?

    <p>Acid in the environment</p> Signup and view all the answers

    What is the effect of alkali-aggregate reaction on concrete?

    <p>Volume expansion and cracking</p> Signup and view all the answers

    What is the definition of permeability with respect to concrete?

    <p>Case with which liquids or gases can travel through concrete</p> Signup and view all the answers

    Which type of exposure poses a moderate threat due to sea water containing sulfate?

    <p>Chemical attack by sea water</p> Signup and view all the answers

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