Practice Testing Of Fresh Concrete Properties (6) - Segregation - Civil Engineering Materials, Testing & Evaluation

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9 questions

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6 sample questions

Question 1.
What does segregation in concrete refer to?
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Think about how different-sized materials behave.
Question 2.
What is bleeding in concrete?
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Consider what happens to water in a saturated mix.
3Question 3.
What is the primary cause of bleeding in fresh concrete?
- Low water-cement ratio
- High water-cement ratio
- Well-graded aggregates
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Think about how water influences the mix.
4Question 4.
True or False: Re-tempering can strengthen the concrete.
- True
- False
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Consider what happens when you add water to a setting mix.
Question 5.
Discuss a scenario where improper handling leads to the effects of segregation on a concrete project. What measures would you suggest to prevent it?
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Think about the strategies that can maintain the uniformity of the mix.
Question 6.
Given a construction site with high temperatures, outline a plan to maintain concrete workability and prevent slump loss.
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Consider all factors influencing temperature during concrete work.

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