Practice Alkali-aggregate Reaction (aar) (5) - Durability of Concrete - Civil Engineering Materials, Testing & Evaluation

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9 questions

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4 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What does AAR stand for?
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Recall the main acronym from the chapter.
Question 2.
Name one type of AAR.
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Think about the types discussed in the session.
3Question 3.
What is the main consequence of AAR in concrete structures?
- Improved durability
- Expansion and cracking
- Reduced weight of concrete
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Think about the symptoms and effects we discussed.
4Question 4.
True or False: ACR is the most common form of AAR.
- True
- False
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Recall the definitions of the types we covered.
Question 5.
A bridge built using reactive aggregates without preventive measures starts to exhibit cracks after two years. Recommend a solution to address and prevent further damage.
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Think about long-term solutions discussed in the class.
Question 6.
A structural engineer has observed efflorescence and map cracking on a newly constructed highway. Detail a step-by-step approach to diagnose whether it is due to AAR.
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Remember the signs of AAR and testing methods we covered.

5 more questions in this section. Enroll free to practise them all.