Practice Placement And Compaction (7.9.B) - High Performance Concrete - Concrete Technology

Practice: Placement and Compaction

Lesson 7.9.BHigh Performance Concrete

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8 questions

Flashcard drill
2 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
2 questions · about 1 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is slump loss?
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Think about changes in consistency over time.
Question 2.
Why are agitator trucks used in transporting HPC?
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Consider how they work to keep the mix consistent.
3Question 3.
Why is it critical to transport High Performance Concrete quickly after mixing?
- To avoid setting prematurely.
- To maintain workability and consistency.
- To improve the curing process.
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Consider how timing influences the final characteristics of concrete.
4Question 4.
True or False: Self-Compacting HPC requires mechanical vibration during placement.
- True
- False
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Think about what makes SCC unique compared to conventional mixes.
Question 5.
You are in charge of a construction site where HPC has been delayed. After mixing, it has been over an hour since the concrete was initially set to be placed. What steps would you take to still ensure the quality of the concrete?
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Think about what happens to concrete as it sits.
Question 6.
Design a curing method plan for a project scheduled in a hot weather environment. Include specific techniques and reasoning for choice.
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Visualize how temperature affects curing and bond strength.

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