Practice Effects (1.4) - Segregation - Civil Engineering Materials, Testing & Evaluation

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10 questions

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6 sample questions

Question 1.
Define segregation in concrete.
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Think about the components of concrete.
Question 2.
What is bleeding?
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It's related to water content.
3Question 3.
What causes segregation in fresh concrete?
- A high temperature
- Poor grading of aggregates
- Low water content
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Consider the mixing process and components' behavior.
4Question 4.
True or False: Bleeding can lead to cracking.
- True
- False
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Think about how water affects surface quality.
Question 5.
Given a scenario where a concrete worker observes delayed bleeding after finishing work, outline a strategy to mitigate the problem.
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Think about controlling water content and using suitable admixtures.
Question 6.
A construction site reports frequent slump loss leading to difficulties in placement. Propose a comprehensive plan to address this issue.
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Consider the mixing and environmental conditions affecting slump.

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