Practice Prevention Methods (1.5) - Segregation - Civil Engineering Materials, Testing & Evaluation

Practise this section

8 questions

Flashcard drill
4 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
2 questions · about 1 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
What is segregation in concrete?
Show hintHide hint
Think about different sizes and weights of materials in the mix.
Question 2.
Name one method to prevent bleeding.
Show hintHide hint
Consider the quality of cement used.
3Question 3.
What is one common cause of concrete segregation?
- Well-graded aggregates
- Excessive vibration
- Correct water-cement ratio
Show hintHide hint
Think about how forces can impact particle arrangement.
4Question 4.
True or False: Re-tempering is encouraged to maintain concrete consistency.
- True
- False
Show hintHide hint
Consider why maintaining hydration is crucial.
Question 5.
How would you design a concrete mix to prevent both segregation and bleeding for a hot weather project?
Show hintHide hint
Think about balance—both in proportions and conditions.
Question 6.
Given a scenario where you've added excess water to concrete during mixing, outline steps to mitigate the risks of slump loss.
Show hintHide hint
Consider the time-sensitive nature of working with fresh concrete.

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