Practice Trial Mixes (7.3.7) - High Performance Concrete - Concrete Technology

Practice: Trial Mixes

Lesson 7.3.7High Performance Concrete

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9 questions

Flashcard drill
3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is the primary purpose of a trial mix?
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Think about validation of lab designs.
Question 2.
Define slump in the context of concrete.
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It involves how the concrete flows or settles.
3Question 3.
What purpose does a trial mix serve in concrete design?
- A. To test a design before actual mixing
- B. To predict weather impact on concrete
- C. To evaluate aesthetics of concrete
- D. To determine the color of concrete
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Focus on the trial mix's role in testing.
4Question 4.
True or False: The slump test measures the compressive strength of concrete.
- True
- False
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Think about what slump specifically assesses.
Question 5.
You performed a trial mix and found the concrete to have a slump of only 2 cm, which is too low for your project. Discuss two modifications you can make to the mix to improve workability.
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Think about common ways to adjust for low workability.
Question 6.
After several trial mixes, you notice that your concrete consistently lacks strength compared to your target. Propose a detailed plan to diagnose and remedy this issue.
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Focus on the balance of materials in your mix design.

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