Practice Fresh Properties (12.2) - Workability of Fresh Concrete

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9 questions

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6 questions · about 4 min · pass mark 70%. Hints available.
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3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is flowability in SCC?
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Think of how water flows.
Question 2.
Define segregation in concrete.
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What happens if you mix sand and gravel incorrectly?
3Question 3.
What does high flowability in SCC allow for?
- A. Faster setting times
- B. Easy filling of molds
- C. Reduced material costs
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Think of the benefit of not having to vibrate the concrete.
4Question 4.
True or False: Segregation results in a stronger concrete mix.
- True
- False
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Consider the integrity of mixed materials.
Question 5.
Design a mix for SCC taking into account flowability, passing ability, and segregation resistance. Justify your choices in material selection.
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Consider the ratios and properties of the materials involved.
Question 6.
Evaluate the economic implications of using SCC versus traditional concrete in a high-rise construction project.
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Reflect on long-term savings versus upfront costs.

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