Enrol to start learning
Reading is open to everyone. Enrolling is free, and it is what unlocks the audio lessons, practice tests and progress tracking.
17.1. Fly Ash
This section
Practice test
12 questions on this section. Wrong answers show you what to read again.
Sign up to take itWhole chapter
Revision test
Mixed questions from across the chapter. Your answers get marked.
Sign up to take itQuick
Flashcard drill
3 cards from this lesson. Good the night before a test.
Try these first
- 1.
What is fly ash?
Hint
Consider where it originates from.
- 2.
Name one benefit of using fly ash in concrete.
Hint
Think about the mixing process.
- 3.
What is the purpose of fly ash in concrete?
- Improves strength
- Increases workability
- Reduces weight
Hint
Think about how fly ash interacts with the concrete mix.
- 4.
Fly ash is a type of what?
- True
- False
Hint
Recall the definition of fly ash.
- 5.
Calculate the optimal water-to-cement ratio when using fly ash in a concrete mix designed for a bridge.
Hint
Consider the mix design standards for similar structures.
- 6.
Evaluate the impact of fly ash on cracking in concrete during hot weather. What measures can be taken to mitigate these effects?
Hint
Reflect on each element of the hydration process and how temperature affects it.
Exercises
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting
4 more questions available
Enrol freeQuiz
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting
2 more questions available
Enrol freeChallenge Problems
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting