Practice Sulfate Attack (11.4.3) - Durability of 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.
Define sulfate attack.
Show hintHide hint
Think about what happens when certain chemicals meet in cement.
Question 2.
What does C₃A stand for in cement?
Show hintHide hint
It is one of the main compounds found in cement.
3Question 3.
What is the primary cause of sulfate attack in concrete?
- Presence of water
- Reaction of sulfate ions with C₃A
- Poor curing practices
Show hintHide hint
Consider what component in the cement reacts with sulfates.
4Question 4.
True or False: Gypsum and ettringite are harmless in small amounts in concrete.
- True
- False
Show hintHide hint
Think about the implications of expansion in concrete.
Question 5.
Given a concrete structure located near the ocean, detail an approach to mitigate potential sulfate attacks during the design phase.
Show hintHide hint
Think about both materials and methods.
Question 6.
Analyze a structure exhibiting signs of sulfate attack. What steps would you recommend for both immediate repairs and long-term solutions?
Show hintHide hint
Break down your analysis into urgent versus preventative measures.

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