Practice Alkali-aggregate Reaction (aar) (3.10) - Aggregates for Concrete

Practice: Alkali-Aggregate Reaction (AAR)

Lesson 3.10Aggregates for Concrete

Practise this section

9 questions

Flashcard drill
3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
Sign up to start the exercise
Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
What does AAR stand for?
Show hintHide hint
Think about the relationships between elements in concrete.
Question 2.
Name one preventive measure for AAR.
Show hintHide hint
Consider what can help reduce alkali content in concrete.
3Question 3.
What is the primary cause of Alkali-Aggregate Reaction (AAR)?
- Presence of carbonates
- Reactive silica and alkalis
- Low water content
Show hintHide hint
Remember what materials contribute to AAR.
4Question 4.
True or False: Alkali-Carbonate Reaction (ACR) is the most common form of AAR.
- True
- False
Show hintHide hint
Think about the terminology we discussed.
Question 5.
Consider a concrete structure that is exhibiting cracks. Propose a method for determining if these cracks are due to AAR. Discuss the steps you would take.
Show hintHide hint
Think testing materials and assessing environmental conditions.
Question 6.
If you are tasked with designing concrete for a new building in a region known for high alkali levels in its water supply, what steps would you take to mitigate AAR? Provide at least three strategies.
Show hintHide hint
Remember the preventive measures discussed during class.

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