Practice Workability (3.4) - Objectives of Mix Design - Civil Engineering Materials, Testing & Evaluation - Vol 2

Practice: Workability

Lesson 3.4Objectives of Mix Design

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8 questions

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2 cards from this section. Quick, good the night before a test.
Exercise
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Quiz
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6 sample questions

Question 1.
What is workability in concrete?
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Think about the mixing and application process.
Question 2.
Which test is commonly used to measure the workability of concrete?
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Remember the cone shape used during the test.
3Question 3.
What is the purpose of the slump test?
- To measure strength
- To determine workability
- To check temperature
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Focus on the aspect of concrete's fluidity.
4Question 4.
True or False: Higher water-cement ratios always lead to stronger concrete.
- True
- False
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Think about the relationship between water and strength.
Question 5.
A contractor finds that the concrete mix is too stiff and difficult to place. Explain three adjustments that could be made to improve the workability without compromising strength.
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Consider how changes in water and admixtures could help.
Question 6.
During a slump test, the concrete shows excessive fluidity. Discuss potential causes and how to address this issue while maintaining necessary strength.
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Think about the balance between components in the mix.

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