3.5.7 - Alkali-Aggregate Reactivity (AAR)
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Practice Questions
Test your understanding with targeted questions
What does AAR stand for?
💡 Hint: It involves a reaction between alkali and aggregates.
Can all aggregates react with alkalis?
💡 Hint: Think about the types of silica.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does AAR refer to?
💡 Hint: Focus on the terms related to alkalis and aggregates.
True or False: All aggregates react with alkalis in concrete.
💡 Hint: Consider which minerals are likely to react.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Consider a concrete structure built using reactive aggregates and ordinary cement. Describe the timeline of events that might occur due to AAR. Include potential failure modes and how you would prevent them.
💡 Hint: Think about the factors of time, moisture, and chemical reactivity.
Analyze the long-term effects of not controlling moisture in a concrete structure built with reactive aggregates. What engineering solutions could reverse damage once cracks form?
💡 Hint: Consider both short-term and long-term implications of moisture not being managed.
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