Practice Alkali-Aggregate Reaction (AAR) - 9.13.3 | 9. Topics in Hardened Concrete | Concrete Technology
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9.13.3 - Alkali-Aggregate Reaction (AAR)

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What does AAR stand for?

💡 Hint: Think about the components involved in concrete.

Question 2

Easy

Name one type of AAR.

💡 Hint: There are two main types; one involves silica and the other involves carbonate.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What causes Alkali-Aggregate Reaction?

  • A reaction between alkalis and reactive aggregates
  • A reaction between water and cement
  • A reaction due to temperature changes

💡 Hint: Focus on the key materials involved.

Question 2

True or False: The Alkali-Silica Reaction is less common than the Alkali-Carbonate Reaction.

  • True
  • False

💡 Hint: Think about which type is frequently discussed in concrete chemistry.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Design a concrete mix using pozzolanic materials and low-alkali cement to minimize AAR risks. Explain your reasoning.

💡 Hint: Consider the proportions of each component in your design.

Question 2

Evaluate the impact of environmental conditions on AAR in concrete structures. Discuss how changes in humidity or temperature influence this reaction.

💡 Hint: Think about the relationship between moisture and expansion in AAR.

Challenge and get performance evaluation