Practice Definition (1.1) - Segregation - Civil Engineering Materials, Testing & Evaluation

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10 questions

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6 sample questions

Question 1.
What is fresh concrete?
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Think about the different components mixed together.
Question 2.
Define segregation in concrete.
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Consider what happens to heavy materials when mixed with lighter ones.
3Question 3.
What is segregation in concrete?
- Separation of aggregates
- Adding water to concrete
- Using admixtures
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Think about what happens in the mix when components don't blend well.
4Question 4.
True or False: Bleeding is beneficial for the strength of concrete.
- True
- False
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Recall the issues that arise when water rises to the surface.
Question 5.
You are responsible for a concrete pour scheduled in hot weather. Discuss how you would manage the issues of slump loss and exposure to bleeding.
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Think about how environmental conditions affect the chemistry of concrete.
Question 6.
A construction site reports excessive aggregates settling during placement. What strategies can be implemented to mitigate segregation?
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Analyze what physical actions taken on site can help maintain mix consistency.

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