Practice Chemical Admixtures (2.4) - Characteristics of High Performance Concrete

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8 questions

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Exercise
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6 sample questions

Question 1.
What is the main purpose of chemical admixtures in concrete?
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Think about the functions they serve.
Question 2.
Name one type of chemical admixture.
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Recall the terms we discussed in class.
3Question 3.
What type of admixture is used to increase workability?
- Retarders
- Superplasticizers
- Accelerators
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Think about what helps the concrete flow better.
4Question 4.
True or False: Accelerators slow down the curing process.
- True
- False
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Consider the action of accelerators during hydration.
Question 5.
A construction project requires concrete to set quickly due to an unexpected change in schedule. Which chemical admixture would you use and why?
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Focus on the type of admixture that impacts setting speed.
Question 6.
Evaluate how the introduction of shrinkage-reducing admixtures affects the cost and long-term durability of a high-rise building.
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Consider both immediate and future cost implications.

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