4.5.2 - Alkali-Aggregate Reaction (AAR)
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Practice Questions
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What does AAR stand for?
💡 Hint: Think about the components involved in cement.
Name one type of silica that can react in AAR.
💡 Hint: Consider what is commonly found in aggregates.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does AAR stand for?
💡 Hint: Consider the chemistry involved in cement.
True or False: AAR only occurs in high-temperature environments.
💡 Hint: Think about where moisture can be found.
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Challenge Problems
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A construction project is underway using high-alkali cements and aggregates that have not been tested for reactivity. Discuss the potential long-term consequences.
💡 Hint: Think about the damage AAR could cause over decades.
Quantify the economic impact of using low-alkali cement versus traditional cement in a large construction project where AAR is a concern.
💡 Hint: Consider both upfront and long-term costs.
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